From b0845ebfb5e6d165c9fc362194eccf0c2000730d Mon Sep 17 00:00:00 2001
From: Nicolas Michon <nicolas.michon@inria.fr>
Date: Thu, 28 Jun 2018 12:02:37 +0200
Subject: [PATCH] [nancy] Infiniband guid/mac format change for graphene

---
 .../clusters/graphene/nodes/graphene-10.json  |   6 +-
 .../clusters/graphene/nodes/graphene-100.json |   6 +-
 .../clusters/graphene/nodes/graphene-101.json |   6 +-
 .../clusters/graphene/nodes/graphene-102.json |   6 +-
 .../clusters/graphene/nodes/graphene-103.json |   6 +-
 .../clusters/graphene/nodes/graphene-104.json |   6 +-
 .../clusters/graphene/nodes/graphene-105.json |   6 +-
 .../clusters/graphene/nodes/graphene-106.json |   6 +-
 .../clusters/graphene/nodes/graphene-107.json |   6 +-
 .../clusters/graphene/nodes/graphene-108.json |   6 +-
 .../clusters/graphene/nodes/graphene-109.json |   6 +-
 .../clusters/graphene/nodes/graphene-11.json  |   6 +-
 .../clusters/graphene/nodes/graphene-110.json |   6 +-
 .../clusters/graphene/nodes/graphene-111.json |   6 +-
 .../clusters/graphene/nodes/graphene-112.json |   6 +-
 .../clusters/graphene/nodes/graphene-113.json |   6 +-
 .../clusters/graphene/nodes/graphene-114.json |   6 +-
 .../clusters/graphene/nodes/graphene-115.json |   6 +-
 .../clusters/graphene/nodes/graphene-116.json |   6 +-
 .../clusters/graphene/nodes/graphene-117.json |   6 +-
 .../clusters/graphene/nodes/graphene-118.json |   6 +-
 .../clusters/graphene/nodes/graphene-119.json |   6 +-
 .../clusters/graphene/nodes/graphene-12.json  |   6 +-
 .../clusters/graphene/nodes/graphene-120.json |   6 +-
 .../clusters/graphene/nodes/graphene-121.json |   6 +-
 .../clusters/graphene/nodes/graphene-122.json |   6 +-
 .../clusters/graphene/nodes/graphene-124.json |   6 +-
 .../clusters/graphene/nodes/graphene-125.json |   6 +-
 .../clusters/graphene/nodes/graphene-126.json |   6 +-
 .../clusters/graphene/nodes/graphene-127.json |   6 +-
 .../clusters/graphene/nodes/graphene-128.json |   6 +-
 .../clusters/graphene/nodes/graphene-129.json |   6 +-
 .../clusters/graphene/nodes/graphene-13.json  |   6 +-
 .../clusters/graphene/nodes/graphene-130.json |   6 +-
 .../clusters/graphene/nodes/graphene-131.json |   6 +-
 .../clusters/graphene/nodes/graphene-132.json |   6 +-
 .../clusters/graphene/nodes/graphene-133.json |   6 +-
 .../clusters/graphene/nodes/graphene-134.json |   6 +-
 .../clusters/graphene/nodes/graphene-135.json |   6 +-
 .../clusters/graphene/nodes/graphene-136.json |   6 +-
 .../clusters/graphene/nodes/graphene-137.json |   6 +-
 .../clusters/graphene/nodes/graphene-138.json |   6 +-
 .../clusters/graphene/nodes/graphene-139.json |   6 +-
 .../clusters/graphene/nodes/graphene-14.json  |   6 +-
 .../clusters/graphene/nodes/graphene-140.json |   6 +-
 .../clusters/graphene/nodes/graphene-141.json |   6 +-
 .../clusters/graphene/nodes/graphene-142.json |   6 +-
 .../clusters/graphene/nodes/graphene-143.json |   6 +-
 .../clusters/graphene/nodes/graphene-15.json  |   6 +-
 .../clusters/graphene/nodes/graphene-16.json  |   6 +-
 .../clusters/graphene/nodes/graphene-17.json  |   6 +-
 .../clusters/graphene/nodes/graphene-18.json  |   6 +-
 .../clusters/graphene/nodes/graphene-19.json  |   6 +-
 .../clusters/graphene/nodes/graphene-2.json   |   6 +-
 .../clusters/graphene/nodes/graphene-20.json  |   6 +-
 .../clusters/graphene/nodes/graphene-21.json  |   6 +-
 .../clusters/graphene/nodes/graphene-22.json  |   6 +-
 .../clusters/graphene/nodes/graphene-23.json  |   6 +-
 .../clusters/graphene/nodes/graphene-24.json  |   6 +-
 .../clusters/graphene/nodes/graphene-25.json  |   6 +-
 .../clusters/graphene/nodes/graphene-26.json  |   6 +-
 .../clusters/graphene/nodes/graphene-27.json  |   6 +-
 .../clusters/graphene/nodes/graphene-29.json  |   6 +-
 .../clusters/graphene/nodes/graphene-30.json  |   6 +-
 .../clusters/graphene/nodes/graphene-31.json  |   6 +-
 .../clusters/graphene/nodes/graphene-32.json  |   6 +-
 .../clusters/graphene/nodes/graphene-33.json  |   6 +-
 .../clusters/graphene/nodes/graphene-34.json  |   6 +-
 .../clusters/graphene/nodes/graphene-35.json  |   6 +-
 .../clusters/graphene/nodes/graphene-37.json  |   6 +-
 .../clusters/graphene/nodes/graphene-38.json  |   6 +-
 .../clusters/graphene/nodes/graphene-39.json  |   6 +-
 .../clusters/graphene/nodes/graphene-4.json   |   6 +-
 .../clusters/graphene/nodes/graphene-41.json  |   6 +-
 .../clusters/graphene/nodes/graphene-42.json  |   6 +-
 .../clusters/graphene/nodes/graphene-43.json  |   6 +-
 .../clusters/graphene/nodes/graphene-44.json  |   6 +-
 .../clusters/graphene/nodes/graphene-45.json  |   6 +-
 .../clusters/graphene/nodes/graphene-46.json  |   6 +-
 .../clusters/graphene/nodes/graphene-47.json  |   6 +-
 .../clusters/graphene/nodes/graphene-48.json  |   6 +-
 .../clusters/graphene/nodes/graphene-49.json  |   6 +-
 .../clusters/graphene/nodes/graphene-5.json   |   6 +-
 .../clusters/graphene/nodes/graphene-50.json  |   6 +-
 .../clusters/graphene/nodes/graphene-51.json  |   6 +-
 .../clusters/graphene/nodes/graphene-52.json  |   6 +-
 .../clusters/graphene/nodes/graphene-53.json  |   6 +-
 .../clusters/graphene/nodes/graphene-54.json  |   6 +-
 .../clusters/graphene/nodes/graphene-55.json  |   6 +-
 .../clusters/graphene/nodes/graphene-57.json  |   6 +-
 .../clusters/graphene/nodes/graphene-58.json  |   6 +-
 .../clusters/graphene/nodes/graphene-59.json  |   6 +-
 .../clusters/graphene/nodes/graphene-6.json   |   6 +-
 .../clusters/graphene/nodes/graphene-60.json  |   6 +-
 .../clusters/graphene/nodes/graphene-61.json  |   6 +-
 .../clusters/graphene/nodes/graphene-62.json  |   6 +-
 .../clusters/graphene/nodes/graphene-63.json  |   6 +-
 .../clusters/graphene/nodes/graphene-64.json  |   6 +-
 .../clusters/graphene/nodes/graphene-65.json  |   6 +-
 .../clusters/graphene/nodes/graphene-66.json  |   6 +-
 .../clusters/graphene/nodes/graphene-67.json  |   6 +-
 .../clusters/graphene/nodes/graphene-68.json  |   6 +-
 .../clusters/graphene/nodes/graphene-69.json  |   6 +-
 .../clusters/graphene/nodes/graphene-7.json   |   6 +-
 .../clusters/graphene/nodes/graphene-70.json  |   6 +-
 .../clusters/graphene/nodes/graphene-71.json  |   6 +-
 .../clusters/graphene/nodes/graphene-72.json  |   6 +-
 .../clusters/graphene/nodes/graphene-73.json  |   6 +-
 .../clusters/graphene/nodes/graphene-74.json  |   6 +-
 .../clusters/graphene/nodes/graphene-75.json  |   6 +-
 .../clusters/graphene/nodes/graphene-76.json  |   6 +-
 .../clusters/graphene/nodes/graphene-77.json  |   6 +-
 .../clusters/graphene/nodes/graphene-78.json  |   6 +-
 .../clusters/graphene/nodes/graphene-79.json  |   6 +-
 .../clusters/graphene/nodes/graphene-8.json   |   6 +-
 .../clusters/graphene/nodes/graphene-80.json  |   6 +-
 .../clusters/graphene/nodes/graphene-81.json  |   6 +-
 .../clusters/graphene/nodes/graphene-82.json  |   6 +-
 .../clusters/graphene/nodes/graphene-84.json  |   6 +-
 .../clusters/graphene/nodes/graphene-85.json  |   6 +-
 .../clusters/graphene/nodes/graphene-87.json  |   6 +-
 .../clusters/graphene/nodes/graphene-88.json  |   6 +-
 .../clusters/graphene/nodes/graphene-89.json  |   6 +-
 .../clusters/graphene/nodes/graphene-9.json   |   6 +-
 .../clusters/graphene/nodes/graphene-90.json  |   6 +-
 .../clusters/graphene/nodes/graphene-91.json  |   6 +-
 .../clusters/graphene/nodes/graphene-92.json  |   6 +-
 .../clusters/graphene/nodes/graphene-93.json  |   6 +-
 .../clusters/graphene/nodes/graphene-95.json  |   6 +-
 .../clusters/graphene/nodes/graphene-97.json  |   6 +-
 .../clusters/graphene/nodes/graphene-99.json  |   6 +-
 grid5000-all.json                             | 864 ++++++++++++------
 .../clusters/graphene/nodes/graphene-1.yaml   |   8 +-
 .../clusters/graphene/nodes/graphene-10.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-100.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-101.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-102.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-103.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-104.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-105.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-106.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-107.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-108.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-109.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-11.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-110.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-111.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-112.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-113.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-114.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-115.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-116.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-117.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-118.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-119.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-12.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-120.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-121.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-122.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-123.yaml |   8 +-
 .../clusters/graphene/nodes/graphene-124.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-125.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-126.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-127.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-128.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-129.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-13.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-130.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-131.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-132.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-133.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-134.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-135.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-136.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-137.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-138.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-139.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-14.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-140.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-141.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-142.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-143.yaml |   6 +-
 .../clusters/graphene/nodes/graphene-144.yaml |   8 +-
 .../clusters/graphene/nodes/graphene-15.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-16.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-17.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-18.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-19.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-2.yaml   |   6 +-
 .../clusters/graphene/nodes/graphene-20.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-21.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-22.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-23.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-24.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-25.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-26.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-27.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-28.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-29.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-3.yaml   |   8 +-
 .../clusters/graphene/nodes/graphene-30.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-31.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-32.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-33.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-34.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-35.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-36.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-37.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-38.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-39.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-4.yaml   |   6 +-
 .../clusters/graphene/nodes/graphene-40.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-41.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-42.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-43.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-44.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-45.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-46.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-47.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-48.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-49.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-5.yaml   |   6 +-
 .../clusters/graphene/nodes/graphene-50.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-51.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-52.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-53.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-54.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-55.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-56.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-57.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-58.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-59.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-6.yaml   |   6 +-
 .../clusters/graphene/nodes/graphene-60.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-61.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-62.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-63.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-64.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-65.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-66.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-67.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-68.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-69.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-7.yaml   |   6 +-
 .../clusters/graphene/nodes/graphene-70.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-71.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-72.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-73.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-74.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-75.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-76.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-77.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-78.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-79.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-8.yaml   |   6 +-
 .../clusters/graphene/nodes/graphene-80.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-81.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-82.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-83.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-84.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-85.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-86.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-87.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-88.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-89.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-9.yaml   |   6 +-
 .../clusters/graphene/nodes/graphene-90.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-91.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-92.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-93.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-94.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-95.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-96.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-97.yaml  |   6 +-
 .../clusters/graphene/nodes/graphene-98.yaml  |   8 +-
 .../clusters/graphene/nodes/graphene-99.yaml  |   6 +-
 276 files changed, 1689 insertions(+), 851 deletions(-)

diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.json
index 6d07ad9251c..bc816e0ca02 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6d",
+      "guid": "0x0002c903000b916d",
       "interface": "InfiniBand",
       "ip": "172.18.64.10",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6e",
+      "guid": "0x0002c903000b916e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.json
index 2a7d69cb9dc..75fea55dff9 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0d",
+      "guid": "0x0002c903000b5d0d",
       "interface": "InfiniBand",
       "ip": "172.18.64.100",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0e",
+      "guid": "0x0002c903000b5d0e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.json
index d6395326648..be3edd3104e 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d9",
+      "guid": "0x0002c903000b5cd9",
       "interface": "InfiniBand",
       "ip": "172.18.64.101",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:da",
+      "guid": "0x0002c903000b5cda",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:da",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.json
index dc982a6beb2..9f08906b138 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:71",
+      "guid": "0x0002c903000b5e71",
       "interface": "InfiniBand",
       "ip": "172.18.64.102",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:71",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:72",
+      "guid": "0x0002c903000b5e72",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:72",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.json
index 53010381d6e..04cf4d7d313 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:49",
+      "guid": "0x0002c903000b5d49",
       "interface": "InfiniBand",
       "ip": "172.18.64.103",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:49",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:4a",
+      "guid": "0x0002c903000b5d4a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:4a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.json
index 09fdcd42dd3..ec8c6fd55c4 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:15",
+      "guid": "0x0002c903000b5d15",
       "interface": "InfiniBand",
       "ip": "172.18.64.104",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:15",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:16",
+      "guid": "0x0002c903000b5d16",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:16",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.json
index a0e441e58e0..491c0f88eff 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:19",
+      "guid": "0x0002c903000b5d19",
       "interface": "InfiniBand",
       "ip": "172.18.64.105",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:19",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:1a",
+      "guid": "0x0002c903000b5d1a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:1a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.json
index 28a90c40df0..f40887bb8e6 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ad",
+      "guid": "0x0002c903000b5cad",
       "interface": "InfiniBand",
       "ip": "172.18.64.106",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ad",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ae",
+      "guid": "0x0002c903000b5cae",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ae",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.json
index 6576f56db1c..4d6c9218359 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3d",
+      "guid": "0x0002c903000b5d3d",
       "interface": "InfiniBand",
       "ip": "172.18.64.107",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3e",
+      "guid": "0x0002c903000b5d3e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.json
index 862d78d5b0c..42559393f43 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:21",
+      "guid": "0x0002c903000b5d21",
       "interface": "InfiniBand",
       "ip": "172.18.64.108",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:21",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:22",
+      "guid": "0x0002c903000b5d22",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:22",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.json
index dc3695ffbe1..6c1400c8b6f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:25",
+      "guid": "0x0002c903000b5d25",
       "interface": "InfiniBand",
       "ip": "172.18.64.109",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:25",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:26",
+      "guid": "0x0002c903000b5d26",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:26",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.json
index 6412efa67e3..124432cbe8e 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:71",
+      "guid": "0x0002c903000b9171",
       "interface": "InfiniBand",
       "ip": "172.18.64.11",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:71",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:72",
+      "guid": "0x0002c903000b9172",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:72",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.json
index 9e0d31715c2..e6cc5a81df0 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:a9",
+      "guid": "0x0002c903000b5ca9",
       "interface": "InfiniBand",
       "ip": "172.18.64.110",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:a9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:aa",
+      "guid": "0x0002c903000b5caa",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:aa",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.json
index 97af51bcb1e..f22c7966001 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:91",
+      "guid": "0x0002c903000c5591",
       "interface": "InfiniBand",
       "ip": "172.18.64.111",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:91",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:92",
+      "guid": "0x0002c903000c5592",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:92",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.json
index 263023c512f..8178807e50b 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9d",
+      "guid": "0x0002c903000b7e9d",
       "interface": "InfiniBand",
       "ip": "172.18.64.112",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9e",
+      "guid": "0x0002c903000b7e9e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.json
index d780d17cdce..b17c5befc39 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b5",
+      "guid": "0x0002c903000b93b5",
       "interface": "InfiniBand",
       "ip": "172.18.64.113",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b6",
+      "guid": "0x0002c903000b93b6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.json
index 0683038317f..b23d315be19 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c5",
+      "guid": "0x0002c903000b93c5",
       "interface": "InfiniBand",
       "ip": "172.18.64.114",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c6",
+      "guid": "0x0002c903000b93c6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.json
index 95524e2d1cb..ed5aa186715 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:05",
+      "guid": "0x0002c903000b9305",
       "interface": "InfiniBand",
       "ip": "172.18.64.115",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:05",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:06",
+      "guid": "0x0002c903000b9306",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:06",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.json
index d8be8b4a9c1..f88ac35733f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1d",
+      "guid": "0x0002c903000b931d",
       "interface": "InfiniBand",
       "ip": "172.18.64.116",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1e",
+      "guid": "0x0002c903000b931e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.json
index 8cf513aafc4..4ba030d1e40 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:25",
+      "guid": "0x0002c903000b9325",
       "interface": "InfiniBand",
       "ip": "172.18.64.117",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:25",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:26",
+      "guid": "0x0002c903000b9326",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:26",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.json
index 3220e9ff970..98a1b089822 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d9",
+      "guid": "0x0002c903000b92d9",
       "interface": "InfiniBand",
       "ip": "172.18.64.118",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:da",
+      "guid": "0x0002c903000b92da",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:da",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.json
index 56b4385aafe..4f0064392ef 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:19",
+      "guid": "0x0002c903000b9319",
       "interface": "InfiniBand",
       "ip": "172.18.64.119",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:19",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1a",
+      "guid": "0x0002c903000b931a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.json
index c595c6ef348..5c292a0b178 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:81",
+      "guid": "0x0002c903000b9381",
       "interface": "InfiniBand",
       "ip": "172.18.64.12",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:81",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:82",
+      "guid": "0x0002c903000b9382",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:82",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.json
index ac239e728f8..f5897d6263b 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:29",
+      "guid": "0x0002c903000b9329",
       "interface": "InfiniBand",
       "ip": "172.18.64.120",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:29",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2a",
+      "guid": "0x0002c903000b932a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.json
index 24bc272708b..4f4d3fb7b1f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2d",
+      "guid": "0x0002c903000b932d",
       "interface": "InfiniBand",
       "ip": "172.18.64.121",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2e",
+      "guid": "0x0002c903000b932e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.json
index 8e2f56a1d0b..4577922b09d 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:85",
+      "guid": "0x0002c903000b5d85",
       "interface": "InfiniBand",
       "ip": "172.18.64.122",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:85",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:86",
+      "guid": "0x0002c903000b5d86",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:86",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.json
index 301dcc6f322..5d136335181 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:61",
+      "guid": "0x0002c90300027f61",
       "interface": "InfiniBand",
       "ip": "172.18.64.124",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:61",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:62",
+      "guid": "0x0002c90300027f62",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:62",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.json
index 16d1224d1ab..fc9d23d53f6 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:91",
+      "guid": "0x0002c903000b9391",
       "interface": "InfiniBand",
       "ip": "172.18.64.125",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:91",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:92",
+      "guid": "0x0002c903000b9392",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:92",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.json
index ebe2dd3aa6b..16553376808 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:51",
+      "guid": "0x0002c903000b9151",
       "interface": "InfiniBand",
       "ip": "172.18.64.126",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:51",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:52",
+      "guid": "0x0002c903000b9152",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:52",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.json
index 8ec0042c1d7..6ad891ab3a2 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:85",
+      "guid": "0x0002c903000b9285",
       "interface": "InfiniBand",
       "ip": "172.18.64.127",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:85",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:86",
+      "guid": "0x0002c903000b9286",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:86",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.json
index 6de2d674221..87e6b4c6a16 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:15",
+      "guid": "0x0002c903000b9215",
       "interface": "InfiniBand",
       "ip": "172.18.64.128",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:15",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:16",
+      "guid": "0x0002c903000b9216",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:16",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.json
index 267a19057a7..b1b6a234358 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:05",
+      "guid": "0x0002c903000b9205",
       "interface": "InfiniBand",
       "ip": "172.18.64.129",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:05",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:06",
+      "guid": "0x0002c903000b9206",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:06",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.json
index 4d10e3c00fb..d9ce59876a7 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:85",
+      "guid": "0x0002c903000b9385",
       "interface": "InfiniBand",
       "ip": "172.18.64.13",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:85",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:86",
+      "guid": "0x0002c903000b9386",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:86",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.json
index a01a7de74f1..c1130d7e298 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:09",
+      "guid": "0x0002c903000b9209",
       "interface": "InfiniBand",
       "ip": "172.18.64.130",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:09",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0a",
+      "guid": "0x0002c903000b920a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.json
index b5fe5cc1699..676a47c613e 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4d",
+      "guid": "0x0002c903000b914d",
       "interface": "InfiniBand",
       "ip": "172.18.64.131",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4e",
+      "guid": "0x0002c903000b914e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.json
index b5951eb9057..db2beaa0132 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0d",
+      "guid": "0x0002c903000b920d",
       "interface": "InfiniBand",
       "ip": "172.18.64.132",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0e",
+      "guid": "0x0002c903000b920e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.json
index aa14997a89e..de7024e3e71 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b3",
+      "guid": "0x0002c9030005f7b3",
       "interface": "InfiniBand",
       "ip": "172.18.64.133",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b3",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b4",
+      "guid": "0x0002c9030005f7b4",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b4",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.json
index 2a252da41fe..94e0c5565f3 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:4f",
+      "guid": "0x0002c9030005f44f",
       "interface": "InfiniBand",
       "ip": "172.18.64.134",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:4f",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:50",
+      "guid": "0x0002c9030005f450",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:50",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.json
index 0dc44b0fda7..aedb222b8bf 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c7",
+      "guid": "0x0002c9030005f4c7",
       "interface": "InfiniBand",
       "ip": "172.18.64.135",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c7",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c8",
+      "guid": "0x0002c9030005f4c8",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c8",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.json
index 4bdea1236a6..8d2f5e62d87 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:47",
+      "guid": "0x0002c9030005f847",
       "interface": "InfiniBand",
       "ip": "172.18.64.136",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:47",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:48",
+      "guid": "0x0002c9030005f848",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:48",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.json
index 75b3b58d0bf..cab2037412d 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:47",
+      "guid": "0x0002c9030005f647",
       "interface": "InfiniBand",
       "ip": "172.18.64.137",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:47",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:48",
+      "guid": "0x0002c9030005f648",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:48",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.json
index 2da8d22e4f0..67013695d16 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c3",
+      "guid": "0x0002c9030005f4c3",
       "interface": "InfiniBand",
       "ip": "172.18.64.138",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c3",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c4",
+      "guid": "0x0002c9030005f4c4",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c4",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.json
index 8f88bb1deae..b8283edb4de 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:ff",
+      "guid": "0x0002c9030005f7ff",
       "interface": "InfiniBand",
       "ip": "172.18.64.139",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:ff",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:00",
+      "guid": "0x0002c9030005f800",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:00",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.json
index 92dbad8d084..2817d2d7e16 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e1",
+      "guid": "0x0002c903000b93e1",
       "interface": "InfiniBand",
       "ip": "172.18.64.14",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e2",
+      "guid": "0x0002c903000b93e2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.json
index 6af86066f84..db6962935cd 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:9f",
+      "guid": "0x0002c9030005f79f",
       "interface": "InfiniBand",
       "ip": "172.18.64.140",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:9f",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a0",
+      "guid": "0x0002c9030005f7a0",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a0",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.json
index 4913ee6baee..41bd54e24d4 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:93",
+      "guid": "0x0002c9030005f793",
       "interface": "InfiniBand",
       "ip": "172.18.64.141",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:93",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:94",
+      "guid": "0x0002c9030005f794",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:94",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.json
index f677873ad30..17495b2cbdd 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a7",
+      "guid": "0x0002c9030005f7a7",
       "interface": "InfiniBand",
       "ip": "172.18.64.142",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a7",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a8",
+      "guid": "0x0002c9030005f7a8",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a8",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.json
index 0daf68d53f4..8c508243f7b 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:97",
+      "guid": "0x0002c9030005f497",
       "interface": "InfiniBand",
       "ip": "172.18.64.143",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:97",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:98",
+      "guid": "0x0002c9030005f498",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:98",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.json
index e3f3de7ab2b..281965ae07a 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c9",
+      "guid": "0x0002c903000b93c9",
       "interface": "InfiniBand",
       "ip": "172.18.64.15",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ca",
+      "guid": "0x0002c903000b93ca",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ca",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.json
index f71fcc5c69f..d8a547bb92e 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:75",
+      "guid": "0x0002c903000b9375",
       "interface": "InfiniBand",
       "ip": "172.18.64.16",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:75",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:76",
+      "guid": "0x0002c903000b9376",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:76",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.json
index d3e84d41ca4..9a54fe668f6 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:71",
+      "guid": "0x0002c903000b9371",
       "interface": "InfiniBand",
       "ip": "172.18.64.17",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:71",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:72",
+      "guid": "0x0002c903000b9372",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:72",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.json
index 33158ba7657..c47adff1b75 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7d",
+      "guid": "0x0002c903000b937d",
       "interface": "InfiniBand",
       "ip": "172.18.64.18",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7e",
+      "guid": "0x0002c903000b937e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.json
index b9368df4dfe..c4311391704 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:55",
+      "guid": "0x0002c903000b9155",
       "interface": "InfiniBand",
       "ip": "172.18.64.19",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:55",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:56",
+      "guid": "0x0002c903000b9156",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:56",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.json
index 3535af522eb..8e77e0e47f8 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5d",
+      "guid": "0x0002c903000b915d",
       "interface": "InfiniBand",
       "ip": "172.18.64.2",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5e",
+      "guid": "0x0002c903000b915e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.json
index b68c70a0053..d1f44647c18 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:45",
+      "guid": "0x0002c903000b9145",
       "interface": "InfiniBand",
       "ip": "172.18.64.20",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:45",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:46",
+      "guid": "0x0002c903000b9146",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:46",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.json
index 4dec0f67992..42005a16a2f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6d",
+      "guid": "0x0002c9030004536d",
       "interface": "InfiniBand",
       "ip": "172.18.64.21",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6e",
+      "guid": "0x0002c9030004536e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.json
index 61c9c8fd4db..ccc652f3657 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:79",
+      "guid": "0x0002c903000b9379",
       "interface": "InfiniBand",
       "ip": "172.18.64.22",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:79",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7a",
+      "guid": "0x0002c903000b937a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.json
index 3f525f78397..22e88111d3c 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:65",
+      "guid": "0x0002c903000b9365",
       "interface": "InfiniBand",
       "ip": "172.18.64.23",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:65",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:66",
+      "guid": "0x0002c903000b9366",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:66",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.json
index 29acdc655c7..a7ea21da95c 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:cd",
+      "guid": "0x0002c903000b92cd",
       "interface": "InfiniBand",
       "ip": "172.18.64.24",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:cd",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ce",
+      "guid": "0x0002c903000b92ce",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ce",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.json
index f4a401f9470..5686a6603fe 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a5",
+      "guid": "0x0002c903000b92a5",
       "interface": "InfiniBand",
       "ip": "172.18.64.25",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a6",
+      "guid": "0x0002c903000b92a6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.json
index d1cad7f8f04..0ff8ec63cea 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9d",
+      "guid": "0x0002c903000b929d",
       "interface": "InfiniBand",
       "ip": "172.18.64.26",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9e",
+      "guid": "0x0002c903000b929e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.json
index 3bd715ead26..b37bd5c7a1f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:89",
+      "guid": "0x0002c903000b9289",
       "interface": "InfiniBand",
       "ip": "172.18.64.27",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:89",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8a",
+      "guid": "0x0002c903000b928a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.json
index 0a0fa8008b7..31a0822d7ff 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:dd",
+      "guid": "0x0002c903000b90dd",
       "interface": "InfiniBand",
       "ip": "172.18.64.29",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:dd",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:de",
+      "guid": "0x0002c903000b90de",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:de",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.json
index 858d2b10672..6778190bc91 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:79",
+      "guid": "0x0002c903000b9279",
       "interface": "InfiniBand",
       "ip": "172.18.64.30",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:79",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7a",
+      "guid": "0x0002c903000b927a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.json
index a0086a29373..5d7b88dad67 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1d",
+      "guid": "0x0002c903000b921d",
       "interface": "InfiniBand",
       "ip": "172.18.64.31",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1e",
+      "guid": "0x0002c903000b921e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.json
index a3bddc28b72..d175047d19c 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7d",
+      "guid": "0x0002c903000b927d",
       "interface": "InfiniBand",
       "ip": "172.18.64.32",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7e",
+      "guid": "0x0002c903000b927e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.json
index ffe0cc9104d..17231e6b33e 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:d9",
+      "guid": "0x0002c903000b90d9",
       "interface": "InfiniBand",
       "ip": "172.18.64.33",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:d9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:da",
+      "guid": "0x0002c903000b90da",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:da",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.json
index 6cdef12cfb1..784db93e285 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:65",
+      "guid": "0x0002c903000b9165",
       "interface": "InfiniBand",
       "ip": "172.18.64.34",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:65",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:66",
+      "guid": "0x0002c903000b9166",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:66",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.json
index 7cb7622e04c..834092785c0 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:ef",
+      "guid": "0x0002c9030001d5ef",
       "interface": "InfiniBand",
       "ip": "172.18.64.35",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:ef",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:f0",
+      "guid": "0x0002c9030001d5f0",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:f0",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.json
index 4f0a473fc50..8a30ed68e19 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c5",
+      "guid": "0x0002c903000b92c5",
       "interface": "InfiniBand",
       "ip": "172.18.64.37",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c6",
+      "guid": "0x0002c903000b92c6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.json
index ad3906dd23f..0b131cb109f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b1",
+      "guid": "0x0002c903000b92b1",
       "interface": "InfiniBand",
       "ip": "172.18.64.38",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b2",
+      "guid": "0x0002c903000b92b2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.json
index 94f71e2ef86..fa0cb35d1b6 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c1",
+      "guid": "0x0002c903000b92c1",
       "interface": "InfiniBand",
       "ip": "172.18.64.39",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c2",
+      "guid": "0x0002c903000b92c2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.json
index c5bb9a07d7c..2b103060acd 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:bd",
+      "guid": "0x0002c903000b92bd",
       "interface": "InfiniBand",
       "ip": "172.18.64.4",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:bd",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:be",
+      "guid": "0x0002c903000b92be",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:be",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.json
index d6545dfc342..cb36731f51d 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:99",
+      "guid": "0x0002c903000b9299",
       "interface": "InfiniBand",
       "ip": "172.18.64.41",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:99",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9a",
+      "guid": "0x0002c903000b929a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.json
index d68386aafdc..ba032ab08f4 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a9",
+      "guid": "0x0002c903000b92a9",
       "interface": "InfiniBand",
       "ip": "172.18.64.42",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:aa",
+      "guid": "0x0002c903000b92aa",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:aa",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.json
index be1ef8a784f..6cd245f74e0 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ad",
+      "guid": "0x0002c903000b92ad",
       "interface": "InfiniBand",
       "ip": "172.18.64.43",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ad",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ae",
+      "guid": "0x0002c903000b92ae",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ae",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.json
index 4eac3676d2d..bde5a04aaf4 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b5",
+      "guid": "0x0002c903000b92b5",
       "interface": "InfiniBand",
       "ip": "172.18.64.44",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b6",
+      "guid": "0x0002c903000b92b6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.json
index 9cb70c44cbe..176d4acad0d 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:21",
+      "guid": "0x0002c903000b9321",
       "interface": "InfiniBand",
       "ip": "172.18.64.45",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:21",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:22",
+      "guid": "0x0002c903000b9322",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:22",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.json
index 8017994ea60..91fcc1d31ff 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d5",
+      "guid": "0x0002c903000b93d5",
       "interface": "InfiniBand",
       "ip": "172.18.64.46",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d6",
+      "guid": "0x0002c903000b93d6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.json
index 1f1d9efb7da..df1cd54f189 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e5",
+      "guid": "0x0002c903000b93e5",
       "interface": "InfiniBand",
       "ip": "172.18.64.47",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e6",
+      "guid": "0x0002c903000b93e6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.json
index ce25c78e0f5..fd3104112d2 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:dd",
+      "guid": "0x0002c903000b93dd",
       "interface": "InfiniBand",
       "ip": "172.18.64.48",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:dd",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:de",
+      "guid": "0x0002c903000b93de",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:de",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.json
index 39aa3b67b5d..51f5ddd0fbb 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d1",
+      "guid": "0x0002c903000b93d1",
       "interface": "InfiniBand",
       "ip": "172.18.64.49",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d2",
+      "guid": "0x0002c903000b93d2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.json
index 0eb5f9b072f..6c559c0300f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:79",
+      "guid": "0x0002c903000b9179",
       "interface": "InfiniBand",
       "ip": "172.18.64.5",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:79",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7a",
+      "guid": "0x0002c903000b917a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.json
index 376b391c7cb..ec6e1563322 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f1",
+      "guid": "0x0002c903000b92f1",
       "interface": "InfiniBand",
       "ip": "172.18.64.50",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f2",
+      "guid": "0x0002c903000b92f2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.json
index 2d1c7280dbd..f527a30c6e5 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e9",
+      "guid": "0x0002c903000b92e9",
       "interface": "InfiniBand",
       "ip": "172.18.64.51",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ea",
+      "guid": "0x0002c903000b92ea",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ea",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.json
index 35c0e936873..a3f4e587d14 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f9",
+      "guid": "0x0002c903000b92f9",
       "interface": "InfiniBand",
       "ip": "172.18.64.52",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fa",
+      "guid": "0x0002c903000b92fa",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fa",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.json
index 279817c8654..1650c0bc7da 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:09",
+      "guid": "0x0002c903000b9309",
       "interface": "InfiniBand",
       "ip": "172.18.64.53",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:09",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0a",
+      "guid": "0x0002c903000b930a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.json
index f36dc51ef93..44b0ac3a2d4 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:15",
+      "guid": "0x0002c903000b9315",
       "interface": "InfiniBand",
       "ip": "172.18.64.54",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:15",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:16",
+      "guid": "0x0002c903000b9316",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:16",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.json
index de4de2e2005..40a5834f9ba 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0d",
+      "guid": "0x0002c903000b930d",
       "interface": "InfiniBand",
       "ip": "172.18.64.55",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0e",
+      "guid": "0x0002c903000b930e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.json
index ec6d0ef84c1..3e9f82bd58e 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8d",
+      "guid": "0x0002c903000b918d",
       "interface": "InfiniBand",
       "ip": "172.18.64.57",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8e",
+      "guid": "0x0002c903000b918e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.json
index a520845938b..ecde8fed020 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9d",
+      "guid": "0x0002c903000b919d",
       "interface": "InfiniBand",
       "ip": "172.18.64.58",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9e",
+      "guid": "0x0002c903000b919e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.json
index e5335d31835..cfd98b87eeb 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:95",
+      "guid": "0x0002c903000b9195",
       "interface": "InfiniBand",
       "ip": "172.18.64.59",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:95",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:96",
+      "guid": "0x0002c903000b9196",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:96",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.json
index cfb0764f000..c61674f4043 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7d",
+      "guid": "0x0002c903000b917d",
       "interface": "InfiniBand",
       "ip": "172.18.64.6",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7e",
+      "guid": "0x0002c903000b917e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.json
index 2a75c9844bc..95abe164da1 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:85",
+      "guid": "0x0002c903000b9185",
       "interface": "InfiniBand",
       "ip": "172.18.64.60",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:85",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:86",
+      "guid": "0x0002c903000b9186",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:86",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.json
index e9d16ed53d1..298c9b85493 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:91",
+      "guid": "0x0002c903000b9191",
       "interface": "InfiniBand",
       "ip": "172.18.64.61",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:91",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:92",
+      "guid": "0x0002c903000b9192",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:92",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.json
index 8bb87ae8774..5e331f83f4c 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:99",
+      "guid": "0x0002c903000b9199",
       "interface": "InfiniBand",
       "ip": "172.18.64.62",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:99",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9a",
+      "guid": "0x0002c903000b919a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.json
index fb44fc75c26..ff9561dc168 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:81",
+      "guid": "0x0002c903000b9181",
       "interface": "InfiniBand",
       "ip": "172.18.64.63",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:81",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:82",
+      "guid": "0x0002c903000b9182",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:82",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.json
index 3182dad9705..d7dfbd80e3c 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a1",
+      "guid": "0x0002c903000b92a1",
       "interface": "InfiniBand",
       "ip": "172.18.64.64",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a2",
+      "guid": "0x0002c903000b92a2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.json
index 6baa4d9671a..88fcfc161e1 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d9",
+      "guid": "0x0002c903000b93d9",
       "interface": "InfiniBand",
       "ip": "172.18.64.65",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:da",
+      "guid": "0x0002c903000b93da",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:da",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.json
index c8c91f62e5d..6329a79473f 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:49",
+      "guid": "0x0002c903000b9149",
       "interface": "InfiniBand",
       "ip": "172.18.64.66",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:49",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4a",
+      "guid": "0x0002c903000b914a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.json
index 9199e982bfe..7aaf178ea7c 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b9",
+      "guid": "0x0002c903000b93b9",
       "interface": "InfiniBand",
       "ip": "172.18.64.67",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ba",
+      "guid": "0x0002c903000b93ba",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ba",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.json
index bb0826fcda0..c9219556143 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:91",
+      "guid": "0x0002c903000b9291",
       "interface": "InfiniBand",
       "ip": "172.18.64.68",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:91",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:92",
+      "guid": "0x0002c903000b9292",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:92",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.json
index 7b5da532c09..d08e9ff63b3 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c1",
+      "guid": "0x0002c903000b93c1",
       "interface": "InfiniBand",
       "ip": "172.18.64.69",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c2",
+      "guid": "0x0002c903000b93c2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.json
index cba04e0eace..b57adf0993a 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:61",
+      "guid": "0x0002c903000b9161",
       "interface": "InfiniBand",
       "ip": "172.18.64.7",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:61",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:62",
+      "guid": "0x0002c903000b9162",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:62",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.json
index 9fa71780251..65a027e9dda 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:11",
+      "guid": "0x0002c903000b9311",
       "interface": "InfiniBand",
       "ip": "172.18.64.70",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:11",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:12",
+      "guid": "0x0002c903000b9312",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:12",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.json
index 787663198e8..417361aafc1 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ed",
+      "guid": "0x0002c903000b92ed",
       "interface": "InfiniBand",
       "ip": "172.18.64.71",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ed",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ee",
+      "guid": "0x0002c903000b92ee",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ee",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.json
index 134e5c47d24..afda32a396c 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:95",
+      "guid": "0x0002c903000b9295",
       "interface": "InfiniBand",
       "ip": "172.18.64.72",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:95",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:96",
+      "guid": "0x0002c903000b9296",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:96",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.json
index c5042d4cb29..923f1fc33ce 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fd",
+      "guid": "0x0002c903000b92fd",
       "interface": "InfiniBand",
       "ip": "172.18.64.73",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fd",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fe",
+      "guid": "0x0002c903000b92fe",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fe",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.json
index 604e440e7b2..2b937dbc782 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:dd",
+      "guid": "0x0002c903000b92dd",
       "interface": "InfiniBand",
       "ip": "172.18.64.74",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:dd",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:de",
+      "guid": "0x0002c903000b92de",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:de",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.json
index 56f98ab719d..e39031179da 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e5",
+      "guid": "0x0002c903000b92e5",
       "interface": "InfiniBand",
       "ip": "172.18.64.75",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e6",
+      "guid": "0x0002c903000b92e6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.json
index b7343ca3beb..1e5c455f7bc 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d5",
+      "guid": "0x0002c903000b92d5",
       "interface": "InfiniBand",
       "ip": "172.18.64.76",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d6",
+      "guid": "0x0002c903000b92d6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.json
index b8d55fd67a3..bab29cdf20b 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e1",
+      "guid": "0x0002c903000b92e1",
       "interface": "InfiniBand",
       "ip": "172.18.64.77",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e2",
+      "guid": "0x0002c903000b92e2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.json
index a3a6bc1ab2b..e6d925590e2 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:01",
+      "guid": "0x0002c903000b9301",
       "interface": "InfiniBand",
       "ip": "172.18.64.78",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:01",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:02",
+      "guid": "0x0002c903000b9302",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:02",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.json
index 8ea81fe721f..ac2f89f1134 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f5",
+      "guid": "0x0002c903000b92f5",
       "interface": "InfiniBand",
       "ip": "172.18.64.79",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f6",
+      "guid": "0x0002c903000b92f6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.json
index e12bbf5a04c..d2ed2a05f8a 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:75",
+      "guid": "0x0002c903000b9175",
       "interface": "InfiniBand",
       "ip": "172.18.64.8",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:75",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:76",
+      "guid": "0x0002c903000b9176",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:76",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.json
index 7d612f42c67..a576f860d73 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d1",
+      "guid": "0x0002c903000b92d1",
       "interface": "InfiniBand",
       "ip": "172.18.64.80",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d2",
+      "guid": "0x0002c903000b92d2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.json
index a4e4f18a9aa..2c16d3f71cc 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a9",
+      "guid": "0x0002c903000b93a9",
       "interface": "InfiniBand",
       "ip": "172.18.64.81",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a9",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:aa",
+      "guid": "0x0002c903000b93aa",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:aa",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.json
index cedf118a278..57c893e4922 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:95",
+      "guid": "0x0002c903000b9395",
       "interface": "InfiniBand",
       "ip": "172.18.64.82",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:95",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:96",
+      "guid": "0x0002c903000b9396",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:96",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.json
index eeb1b14de8e..d5216fb2154 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9d",
+      "guid": "0x0002c903000b939d",
       "interface": "InfiniBand",
       "ip": "172.18.64.84",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9d",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -120,9 +121,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9e",
+      "guid": "0x0002c903000b939e",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9e",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.json
index b72885b9682..7288cd9f98b 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:99",
+      "guid": "0x0002c903000b9399",
       "interface": "InfiniBand",
       "ip": "172.18.64.85",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:99",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9a",
+      "guid": "0x0002c903000b939a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.json
index ef0470eec62..bc84c71519e 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ad",
+      "guid": "0x0002c903000b93ad",
       "interface": "InfiniBand",
       "ip": "172.18.64.87",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ad",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ae",
+      "guid": "0x0002c903000b93ae",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ae",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.json
index 0558fc2053a..f1cf084cfd9 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b1",
+      "guid": "0x0002c903000b93b1",
       "interface": "InfiniBand",
       "ip": "172.18.64.88",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b2",
+      "guid": "0x0002c903000b93b2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.json
index 7a66219ad56..ea3f676f849 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ed",
+      "guid": "0x0002c903000b5ced",
       "interface": "InfiniBand",
       "ip": "172.18.64.89",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ed",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ee",
+      "guid": "0x0002c903000b5cee",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ee",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.json
index 00f4ab63372..835055b16a0 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:69",
+      "guid": "0x0002c903000b9169",
       "interface": "InfiniBand",
       "ip": "172.18.64.9",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:69",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6a",
+      "guid": "0x0002c903000b916a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.json
index 0bf6acf1863..02949859fb6 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:09",
+      "guid": "0x0002c903000b5d09",
       "interface": "InfiniBand",
       "ip": "172.18.64.90",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:09",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0a",
+      "guid": "0x0002c903000b5d0a",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0a",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.json
index c4f509c07da..695ef5f4021 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d1",
+      "guid": "0x0002c903000b5cd1",
       "interface": "InfiniBand",
       "ip": "172.18.64.91",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d2",
+      "guid": "0x0002c903000b5cd2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.json
index ff0b503b82a..fd1a9d65931 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e5",
+      "guid": "0x0002c903000b5ce5",
       "interface": "InfiniBand",
       "ip": "172.18.64.92",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e6",
+      "guid": "0x0002c903000b5ce6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.json
index 33b9cdf3088..981d0315797 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ad",
+      "guid": "0x0002c903000b5ead",
       "interface": "InfiniBand",
       "ip": "172.18.64.93",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ad",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ae",
+      "guid": "0x0002c903000b5eae",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ae",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.json
index a603c6f867a..8865dc1e9b3 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:95",
+      "guid": "0x0002c903000b5e95",
       "interface": "InfiniBand",
       "ip": "172.18.64.95",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:95",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:96",
+      "guid": "0x0002c903000b5e96",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:96",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.json
index 36c5e72909e..9f92c8585ea 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d5",
+      "guid": "0x0002c903000b5ed5",
       "interface": "InfiniBand",
       "ip": "172.18.64.97",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d5",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d6",
+      "guid": "0x0002c903000b5ed6",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d6",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.json b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.json
index b54b1ecce19..459b9d3344b 100644
--- a/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.json
+++ b/data/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.json
@@ -104,10 +104,11 @@
       "device": "ib0",
       "driver": "mlx4_core",
       "enabled": true,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b1",
+      "guid": "0x0002c903000b5eb1",
       "interface": "InfiniBand",
       "ip": "172.18.64.99",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b1",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": true,
@@ -121,9 +122,10 @@
       "device": "ib1",
       "driver": "mlx4_core",
       "enabled": false,
-      "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b2",
+      "guid": "0x0002c903000b5eb2",
       "interface": "InfiniBand",
       "kavlan": false,
+      "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b2",
       "management": false,
       "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
       "mountable": false,
diff --git a/grid5000-all.json b/grid5000-all.json
index c0a495ff5a7..837e863783a 100644
--- a/grid5000-all.json
+++ b/grid5000-all.json
@@ -82778,10 +82778,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:81",
+                  "guid": "0x0002c903000b9281",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.1",
                   "ip6": "fe80::202:c903:b:9281",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:81",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -82792,8 +82793,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:82",
+                  "guid": "0x0002c903000b9282",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:82",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -82969,10 +82971,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6d",
+                  "guid": "0x0002c903000b916d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.10",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -82986,9 +82989,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6e",
+                  "guid": "0x0002c903000b916e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -83187,10 +83191,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0d",
+                  "guid": "0x0002c903000b5d0d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.100",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -83204,9 +83209,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0e",
+                  "guid": "0x0002c903000b5d0e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -83405,10 +83411,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d9",
+                  "guid": "0x0002c903000b5cd9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.101",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -83422,9 +83429,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:da",
+                  "guid": "0x0002c903000b5cda",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:da",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -83623,10 +83631,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:71",
+                  "guid": "0x0002c903000b5e71",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.102",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:71",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -83640,9 +83649,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:72",
+                  "guid": "0x0002c903000b5e72",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:72",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -83841,10 +83851,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:49",
+                  "guid": "0x0002c903000b5d49",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.103",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:49",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -83858,9 +83869,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:4a",
+                  "guid": "0x0002c903000b5d4a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:4a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -84059,10 +84071,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:15",
+                  "guid": "0x0002c903000b5d15",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.104",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:15",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -84076,9 +84089,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:16",
+                  "guid": "0x0002c903000b5d16",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:16",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -84277,10 +84291,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:19",
+                  "guid": "0x0002c903000b5d19",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.105",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:19",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -84294,9 +84309,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:1a",
+                  "guid": "0x0002c903000b5d1a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:1a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -84496,10 +84512,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ad",
+                  "guid": "0x0002c903000b5cad",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.106",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ad",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -84513,9 +84530,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ae",
+                  "guid": "0x0002c903000b5cae",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ae",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -84715,10 +84733,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3d",
+                  "guid": "0x0002c903000b5d3d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.107",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -84732,9 +84751,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3e",
+                  "guid": "0x0002c903000b5d3e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -84934,10 +84954,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:21",
+                  "guid": "0x0002c903000b5d21",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.108",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:21",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -84951,9 +84972,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:22",
+                  "guid": "0x0002c903000b5d22",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:22",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -85153,10 +85175,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:25",
+                  "guid": "0x0002c903000b5d25",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.109",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:25",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -85170,9 +85193,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:26",
+                  "guid": "0x0002c903000b5d26",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:26",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -85372,10 +85396,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:71",
+                  "guid": "0x0002c903000b9171",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.11",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:71",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -85389,9 +85414,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:72",
+                  "guid": "0x0002c903000b9172",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:72",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -85590,10 +85616,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:a9",
+                  "guid": "0x0002c903000b5ca9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.110",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:a9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -85607,9 +85634,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:aa",
+                  "guid": "0x0002c903000b5caa",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:aa",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -85809,10 +85837,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:91",
+                  "guid": "0x0002c903000c5591",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.111",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:91",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -85826,9 +85855,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:92",
+                  "guid": "0x0002c903000c5592",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:92",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -86028,10 +86058,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9d",
+                  "guid": "0x0002c903000b7e9d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.112",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -86045,9 +86076,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9e",
+                  "guid": "0x0002c903000b7e9e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -86247,10 +86279,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b5",
+                  "guid": "0x0002c903000b93b5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.113",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -86264,9 +86297,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b6",
+                  "guid": "0x0002c903000b93b6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -86466,10 +86500,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c5",
+                  "guid": "0x0002c903000b93c5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.114",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -86483,9 +86518,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c6",
+                  "guid": "0x0002c903000b93c6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -86685,10 +86721,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:05",
+                  "guid": "0x0002c903000b9305",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.115",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:05",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -86702,9 +86739,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:06",
+                  "guid": "0x0002c903000b9306",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:06",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -86904,10 +86942,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1d",
+                  "guid": "0x0002c903000b931d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.116",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -86921,9 +86960,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1e",
+                  "guid": "0x0002c903000b931e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -87123,10 +87163,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:25",
+                  "guid": "0x0002c903000b9325",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.117",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:25",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -87140,9 +87181,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:26",
+                  "guid": "0x0002c903000b9326",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:26",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -87342,10 +87384,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d9",
+                  "guid": "0x0002c903000b92d9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.118",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -87359,9 +87402,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:da",
+                  "guid": "0x0002c903000b92da",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:da",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -87561,10 +87605,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:19",
+                  "guid": "0x0002c903000b9319",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.119",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:19",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -87578,9 +87623,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1a",
+                  "guid": "0x0002c903000b931a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -87780,10 +87826,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:81",
+                  "guid": "0x0002c903000b9381",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.12",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:81",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -87797,9 +87844,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:82",
+                  "guid": "0x0002c903000b9382",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:82",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -87998,10 +88046,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:29",
+                  "guid": "0x0002c903000b9329",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.120",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:29",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -88015,9 +88064,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2a",
+                  "guid": "0x0002c903000b932a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -88217,10 +88267,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2d",
+                  "guid": "0x0002c903000b932d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.121",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -88234,9 +88285,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2e",
+                  "guid": "0x0002c903000b932e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -88436,10 +88488,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:85",
+                  "guid": "0x0002c903000b5d85",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.122",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:85",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -88453,9 +88506,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:86",
+                  "guid": "0x0002c903000b5d86",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:86",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -88648,10 +88702,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:19",
+                  "guid": "0x0002c903000b9219",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.123",
                   "ip6": "fe80::202:c903:b:9219",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:19",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -88662,8 +88717,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1a",
+                  "guid": "0x0002c903000b921a",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1a",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -88839,10 +88895,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:61",
+                  "guid": "0x0002c90300027f61",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.124",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:61",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -88856,9 +88913,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:62",
+                  "guid": "0x0002c90300027f62",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:62",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -89058,10 +89116,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:91",
+                  "guid": "0x0002c903000b9391",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.125",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:91",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -89075,9 +89134,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:92",
+                  "guid": "0x0002c903000b9392",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:92",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -89277,10 +89337,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:51",
+                  "guid": "0x0002c903000b9151",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.126",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:51",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -89294,9 +89355,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:52",
+                  "guid": "0x0002c903000b9152",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:52",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -89496,10 +89558,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:85",
+                  "guid": "0x0002c903000b9285",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.127",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:85",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -89513,9 +89576,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:86",
+                  "guid": "0x0002c903000b9286",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:86",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -89715,10 +89779,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:15",
+                  "guid": "0x0002c903000b9215",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.128",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:15",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -89732,9 +89797,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:16",
+                  "guid": "0x0002c903000b9216",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:16",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -89934,10 +90000,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:05",
+                  "guid": "0x0002c903000b9205",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.129",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:05",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -89951,9 +90018,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:06",
+                  "guid": "0x0002c903000b9206",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:06",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -90153,10 +90221,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:85",
+                  "guid": "0x0002c903000b9385",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.13",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:85",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -90170,9 +90239,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:86",
+                  "guid": "0x0002c903000b9386",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:86",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -90371,10 +90441,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:09",
+                  "guid": "0x0002c903000b9209",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.130",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:09",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -90388,9 +90459,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0a",
+                  "guid": "0x0002c903000b920a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -90590,10 +90662,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4d",
+                  "guid": "0x0002c903000b914d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.131",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -90607,9 +90680,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4e",
+                  "guid": "0x0002c903000b914e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -90809,10 +90883,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0d",
+                  "guid": "0x0002c903000b920d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.132",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -90826,9 +90901,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0e",
+                  "guid": "0x0002c903000b920e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -91028,10 +91104,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b3",
+                  "guid": "0x0002c9030005f7b3",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.133",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b3",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -91045,9 +91122,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b4",
+                  "guid": "0x0002c9030005f7b4",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b4",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -91247,10 +91325,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:4f",
+                  "guid": "0x0002c9030005f44f",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.134",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:4f",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -91264,9 +91343,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:50",
+                  "guid": "0x0002c9030005f450",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:50",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -91466,10 +91546,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c7",
+                  "guid": "0x0002c9030005f4c7",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.135",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c7",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -91483,9 +91564,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c8",
+                  "guid": "0x0002c9030005f4c8",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c8",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -91685,10 +91767,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:47",
+                  "guid": "0x0002c9030005f847",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.136",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:47",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -91702,9 +91785,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:48",
+                  "guid": "0x0002c9030005f848",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:48",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -91904,10 +91988,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:47",
+                  "guid": "0x0002c9030005f647",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.137",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:47",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -91921,9 +92006,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:48",
+                  "guid": "0x0002c9030005f648",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:48",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -92123,10 +92209,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c3",
+                  "guid": "0x0002c9030005f4c3",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.138",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c3",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -92140,9 +92227,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c4",
+                  "guid": "0x0002c9030005f4c4",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c4",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -92342,10 +92430,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:ff",
+                  "guid": "0x0002c9030005f7ff",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.139",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:ff",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -92359,9 +92448,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:00",
+                  "guid": "0x0002c9030005f800",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:00",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -92561,10 +92651,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e1",
+                  "guid": "0x0002c903000b93e1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.14",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -92578,9 +92669,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e2",
+                  "guid": "0x0002c903000b93e2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -92779,10 +92871,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:9f",
+                  "guid": "0x0002c9030005f79f",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.140",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:9f",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -92796,9 +92889,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a0",
+                  "guid": "0x0002c9030005f7a0",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a0",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -92998,10 +93092,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:93",
+                  "guid": "0x0002c9030005f793",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.141",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:93",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -93015,9 +93110,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:94",
+                  "guid": "0x0002c9030005f794",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:94",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -93217,10 +93313,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a7",
+                  "guid": "0x0002c9030005f7a7",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.142",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a7",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -93234,9 +93331,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a8",
+                  "guid": "0x0002c9030005f7a8",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a8",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -93436,10 +93534,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:97",
+                  "guid": "0x0002c9030005f497",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.143",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:97",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -93453,9 +93552,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:98",
+                  "guid": "0x0002c9030005f498",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:98",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -93648,10 +93748,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5b",
+                  "guid": "0x0002c9030005f85b",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.144",
                   "ip6": "fe80::202:c903:5:f85b",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5b",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -93662,8 +93763,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5c",
+                  "guid": "0x0002c9030005f85c",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5c",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -93839,10 +93941,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c9",
+                  "guid": "0x0002c903000b93c9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.15",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -93856,9 +93959,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ca",
+                  "guid": "0x0002c903000b93ca",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ca",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -94057,10 +94161,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:75",
+                  "guid": "0x0002c903000b9375",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.16",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:75",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -94074,9 +94179,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:76",
+                  "guid": "0x0002c903000b9376",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:76",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -94275,10 +94381,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:71",
+                  "guid": "0x0002c903000b9371",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.17",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:71",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -94292,9 +94399,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:72",
+                  "guid": "0x0002c903000b9372",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:72",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -94493,10 +94601,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7d",
+                  "guid": "0x0002c903000b937d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.18",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -94510,9 +94619,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7e",
+                  "guid": "0x0002c903000b937e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -94711,10 +94821,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:55",
+                  "guid": "0x0002c903000b9155",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.19",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:55",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -94728,9 +94839,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:56",
+                  "guid": "0x0002c903000b9156",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:56",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -94929,10 +95041,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5d",
+                  "guid": "0x0002c903000b915d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.2",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -94946,9 +95059,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5e",
+                  "guid": "0x0002c903000b915e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -95147,10 +95261,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:45",
+                  "guid": "0x0002c903000b9145",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.20",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:45",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -95164,9 +95279,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:46",
+                  "guid": "0x0002c903000b9146",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:46",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -95365,10 +95481,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6d",
+                  "guid": "0x0002c9030004536d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.21",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -95382,9 +95499,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6e",
+                  "guid": "0x0002c9030004536e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -95583,10 +95701,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:79",
+                  "guid": "0x0002c903000b9379",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.22",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:79",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -95600,9 +95719,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7a",
+                  "guid": "0x0002c903000b937a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -95801,10 +95921,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:65",
+                  "guid": "0x0002c903000b9365",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.23",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:65",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -95818,9 +95939,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:66",
+                  "guid": "0x0002c903000b9366",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:66",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -96019,10 +96141,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:cd",
+                  "guid": "0x0002c903000b92cd",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.24",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:cd",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -96036,9 +96159,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ce",
+                  "guid": "0x0002c903000b92ce",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ce",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -96237,10 +96361,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a5",
+                  "guid": "0x0002c903000b92a5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.25",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -96254,9 +96379,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a6",
+                  "guid": "0x0002c903000b92a6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -96455,10 +96581,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9d",
+                  "guid": "0x0002c903000b929d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.26",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -96472,9 +96599,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9e",
+                  "guid": "0x0002c903000b929e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -96673,10 +96801,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:89",
+                  "guid": "0x0002c903000b9289",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.27",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:89",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -96690,9 +96819,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8a",
+                  "guid": "0x0002c903000b928a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -96884,10 +97014,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8d",
+                  "guid": "0x0002c903000b928d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.28",
                   "ip6": "fe80::202:c903:b:928d",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8d",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -96898,8 +97029,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8e",
+                  "guid": "0x0002c903000b928e",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8e",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -97075,10 +97207,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:dd",
+                  "guid": "0x0002c903000b90dd",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.29",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:dd",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -97092,9 +97225,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:de",
+                  "guid": "0x0002c903000b90de",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:de",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -97286,10 +97420,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:59",
+                  "guid": "0x0002c903000b9159",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.3",
                   "ip6": "fe80::202:c903:b:9159",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:59",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -97300,8 +97435,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5a",
+                  "guid": "0x0002c903000b915a",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5a",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -97477,10 +97613,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:79",
+                  "guid": "0x0002c903000b9279",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.30",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:79",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -97494,9 +97631,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7a",
+                  "guid": "0x0002c903000b927a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -97695,10 +97833,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1d",
+                  "guid": "0x0002c903000b921d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.31",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -97712,9 +97851,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1e",
+                  "guid": "0x0002c903000b921e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -97913,10 +98053,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7d",
+                  "guid": "0x0002c903000b927d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.32",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -97930,9 +98071,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7e",
+                  "guid": "0x0002c903000b927e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -98131,10 +98273,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:d9",
+                  "guid": "0x0002c903000b90d9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.33",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:d9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -98148,9 +98291,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:da",
+                  "guid": "0x0002c903000b90da",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:da",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -98349,10 +98493,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:65",
+                  "guid": "0x0002c903000b9165",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.34",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:65",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -98366,9 +98511,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:66",
+                  "guid": "0x0002c903000b9166",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:66",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -98567,10 +98713,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:ef",
+                  "guid": "0x0002c9030001d5ef",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.35",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:ef",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -98584,9 +98731,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:f0",
+                  "guid": "0x0002c9030001d5f0",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:f0",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -98778,10 +98926,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b9",
+                  "guid": "0x0002c903000b92b9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.36",
                   "ip6": "fe80::202:c903:b:92b9",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b9",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -98792,8 +98941,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ba",
+                  "guid": "0x0002c903000b92ba",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ba",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -98968,10 +99118,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c5",
+                  "guid": "0x0002c903000b92c5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.37",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -98985,9 +99136,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c6",
+                  "guid": "0x0002c903000b92c6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -99186,10 +99338,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b1",
+                  "guid": "0x0002c903000b92b1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.38",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -99203,9 +99356,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b2",
+                  "guid": "0x0002c903000b92b2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -99404,10 +99558,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c1",
+                  "guid": "0x0002c903000b92c1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.39",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -99421,9 +99576,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c2",
+                  "guid": "0x0002c903000b92c2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -99622,10 +99778,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:bd",
+                  "guid": "0x0002c903000b92bd",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.4",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:bd",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -99639,9 +99796,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:be",
+                  "guid": "0x0002c903000b92be",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:be",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -99830,10 +99988,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:cd",
+                  "guid": "0x0002c903000b93cd",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.40",
                   "ip6": "fe80::202:c903:b:93cd",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:cd",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -99844,8 +100003,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ce",
+                  "guid": "0x0002c903000b93ce",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ce",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -100020,10 +100180,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:99",
+                  "guid": "0x0002c903000b9299",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.41",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:99",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -100037,9 +100198,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9a",
+                  "guid": "0x0002c903000b929a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -100238,10 +100400,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a9",
+                  "guid": "0x0002c903000b92a9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.42",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -100255,9 +100418,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:aa",
+                  "guid": "0x0002c903000b92aa",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:aa",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -100456,10 +100620,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ad",
+                  "guid": "0x0002c903000b92ad",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.43",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ad",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -100473,9 +100638,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ae",
+                  "guid": "0x0002c903000b92ae",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ae",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -100674,10 +100840,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b5",
+                  "guid": "0x0002c903000b92b5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.44",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -100691,9 +100858,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b6",
+                  "guid": "0x0002c903000b92b6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -100892,10 +101060,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:21",
+                  "guid": "0x0002c903000b9321",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.45",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:21",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -100909,9 +101078,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:22",
+                  "guid": "0x0002c903000b9322",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:22",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -101110,10 +101280,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d5",
+                  "guid": "0x0002c903000b93d5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.46",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -101127,9 +101298,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d6",
+                  "guid": "0x0002c903000b93d6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -101328,10 +101500,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e5",
+                  "guid": "0x0002c903000b93e5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.47",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -101345,9 +101518,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e6",
+                  "guid": "0x0002c903000b93e6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -101546,10 +101720,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:dd",
+                  "guid": "0x0002c903000b93dd",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.48",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:dd",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -101563,9 +101738,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:de",
+                  "guid": "0x0002c903000b93de",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:de",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -101764,10 +101940,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d1",
+                  "guid": "0x0002c903000b93d1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.49",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -101781,9 +101958,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d2",
+                  "guid": "0x0002c903000b93d2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -101982,10 +102160,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:79",
+                  "guid": "0x0002c903000b9179",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.5",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:79",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -101999,9 +102178,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7a",
+                  "guid": "0x0002c903000b917a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -102200,10 +102380,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f1",
+                  "guid": "0x0002c903000b92f1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.50",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -102217,9 +102398,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f2",
+                  "guid": "0x0002c903000b92f2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -102418,10 +102600,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e9",
+                  "guid": "0x0002c903000b92e9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.51",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -102435,9 +102618,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ea",
+                  "guid": "0x0002c903000b92ea",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ea",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -102636,10 +102820,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f9",
+                  "guid": "0x0002c903000b92f9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.52",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -102653,9 +102838,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fa",
+                  "guid": "0x0002c903000b92fa",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fa",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -102854,10 +103040,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:09",
+                  "guid": "0x0002c903000b9309",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.53",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:09",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -102871,9 +103058,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0a",
+                  "guid": "0x0002c903000b930a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -103072,10 +103260,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:15",
+                  "guid": "0x0002c903000b9315",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.54",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:15",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -103089,9 +103278,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:16",
+                  "guid": "0x0002c903000b9316",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:16",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -103290,10 +103480,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0d",
+                  "guid": "0x0002c903000b930d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.55",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -103307,9 +103498,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0e",
+                  "guid": "0x0002c903000b930e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -103501,10 +103693,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:89",
+                  "guid": "0x0002c903000b9189",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.56",
                   "ip6": "fe80::202:c903:b:9189",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:89",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -103515,8 +103708,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8a",
+                  "guid": "0x0002c903000b918a",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8a",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -103691,10 +103885,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8d",
+                  "guid": "0x0002c903000b918d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.57",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -103708,9 +103903,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8e",
+                  "guid": "0x0002c903000b918e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -103909,10 +104105,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9d",
+                  "guid": "0x0002c903000b919d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.58",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -103926,9 +104123,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9e",
+                  "guid": "0x0002c903000b919e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -104127,10 +104325,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:95",
+                  "guid": "0x0002c903000b9195",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.59",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:95",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -104144,9 +104343,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:96",
+                  "guid": "0x0002c903000b9196",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:96",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -104345,10 +104545,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7d",
+                  "guid": "0x0002c903000b917d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.6",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7d",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -104362,9 +104563,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7e",
+                  "guid": "0x0002c903000b917e",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7e",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -104563,10 +104765,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:85",
+                  "guid": "0x0002c903000b9185",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.60",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:85",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -104580,9 +104783,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:86",
+                  "guid": "0x0002c903000b9186",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:86",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -104781,10 +104985,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:91",
+                  "guid": "0x0002c903000b9191",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.61",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:91",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -104798,9 +105003,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:92",
+                  "guid": "0x0002c903000b9192",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:92",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -104999,10 +105205,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:99",
+                  "guid": "0x0002c903000b9199",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.62",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:99",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -105016,9 +105223,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9a",
+                  "guid": "0x0002c903000b919a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -105217,10 +105425,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:81",
+                  "guid": "0x0002c903000b9181",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.63",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:81",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -105234,9 +105443,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:82",
+                  "guid": "0x0002c903000b9182",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:82",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -105435,10 +105645,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a1",
+                  "guid": "0x0002c903000b92a1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.64",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -105452,9 +105663,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a2",
+                  "guid": "0x0002c903000b92a2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -105653,10 +105865,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d9",
+                  "guid": "0x0002c903000b93d9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.65",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -105670,9 +105883,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:da",
+                  "guid": "0x0002c903000b93da",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:da",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -105871,10 +106085,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:49",
+                  "guid": "0x0002c903000b9149",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.66",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:49",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -105888,9 +106103,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4a",
+                  "guid": "0x0002c903000b914a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -106089,10 +106305,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b9",
+                  "guid": "0x0002c903000b93b9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.67",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b9",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -106106,9 +106323,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ba",
+                  "guid": "0x0002c903000b93ba",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ba",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -106307,10 +106525,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:91",
+                  "guid": "0x0002c903000b9291",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.68",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:91",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -106324,9 +106543,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:92",
+                  "guid": "0x0002c903000b9292",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:92",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -106525,10 +106745,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c1",
+                  "guid": "0x0002c903000b93c1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.69",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -106542,9 +106763,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c2",
+                  "guid": "0x0002c903000b93c2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -106743,10 +106965,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:61",
+                  "guid": "0x0002c903000b9161",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.7",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:61",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -106760,9 +106983,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:62",
+                  "guid": "0x0002c903000b9162",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:62",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -106961,10 +107185,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:11",
+                  "guid": "0x0002c903000b9311",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.70",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:11",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -106978,9 +107203,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:12",
+                  "guid": "0x0002c903000b9312",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:12",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -107179,10 +107405,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ed",
+                  "guid": "0x0002c903000b92ed",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.71",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ed",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -107196,9 +107423,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ee",
+                  "guid": "0x0002c903000b92ee",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ee",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -107397,10 +107625,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:95",
+                  "guid": "0x0002c903000b9295",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.72",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:95",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -107414,9 +107643,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:96",
+                  "guid": "0x0002c903000b9296",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:96",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -107615,10 +107845,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fd",
+                  "guid": "0x0002c903000b92fd",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.73",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fd",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -107631,9 +107862,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fe",
+                  "guid": "0x0002c903000b92fe",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fe",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -107832,10 +108064,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:dd",
+                  "guid": "0x0002c903000b92dd",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.74",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:dd",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -107848,9 +108081,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:de",
+                  "guid": "0x0002c903000b92de",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:de",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -108049,10 +108283,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e5",
+                  "guid": "0x0002c903000b92e5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.75",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -108065,9 +108300,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e6",
+                  "guid": "0x0002c903000b92e6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -108266,10 +108502,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d5",
+                  "guid": "0x0002c903000b92d5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.76",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -108282,9 +108519,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d6",
+                  "guid": "0x0002c903000b92d6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -108483,10 +108721,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e1",
+                  "guid": "0x0002c903000b92e1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.77",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -108499,9 +108738,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e2",
+                  "guid": "0x0002c903000b92e2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -108700,10 +108940,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:01",
+                  "guid": "0x0002c903000b9301",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.78",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:01",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -108716,9 +108957,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:02",
+                  "guid": "0x0002c903000b9302",
                   "interface": "InfiniBand",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -108917,10 +109159,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f5",
+                  "guid": "0x0002c903000b92f5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.79",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -108933,9 +109176,10 @@
                   "device": "ib1",
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                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f6",
+                  "guid": "0x0002c903000b92f6",
                   "interface": "InfiniBand",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -109134,10 +109378,11 @@
                   "device": "ib0",
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                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:75",
+                  "guid": "0x0002c903000b9175",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.8",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -109151,9 +109396,10 @@
                   "device": "ib1",
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                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:76",
+                  "guid": "0x0002c903000b9176",
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -109352,10 +109598,11 @@
                   "device": "ib0",
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                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d1",
+                  "guid": "0x0002c903000b92d1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.80",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -109368,9 +109615,10 @@
                   "device": "ib1",
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-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d2",
+                  "guid": "0x0002c903000b92d2",
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                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
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@@ -109569,10 +109817,11 @@
                   "device": "ib0",
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                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a9",
+                  "guid": "0x0002c903000b93a9",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.81",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -109585,9 +109834,10 @@
                   "device": "ib1",
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-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:aa",
+                  "guid": "0x0002c903000b93aa",
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                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
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@@ -109786,10 +110036,11 @@
                   "device": "ib0",
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-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:95",
+                  "guid": "0x0002c903000b9395",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.82",
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                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -109802,9 +110053,10 @@
                   "device": "ib1",
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-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:96",
+                  "guid": "0x0002c903000b9396",
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                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
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@@ -109995,10 +110247,11 @@
                 "ib0": {
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                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a5",
+                  "guid": "0x0002c903000b93a5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.83",
                   "ip6": "fe80::202:c903:b:93a5",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a5",
                   "management": false,
                   "mountable": true,
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@@ -110008,8 +110261,9 @@
                 "ib1": {
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-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a6",
+                  "guid": "0x0002c903000b93a6",
                   "interface": "InfiniBand",
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                   "management": false,
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@@ -110185,10 +110439,11 @@
                   "device": "ib0",
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                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9d",
+                  "guid": "0x0002c903000b939d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.84",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -110201,9 +110456,10 @@
                   "device": "ib1",
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                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9e",
+                  "guid": "0x0002c903000b939e",
                   "interface": "InfiniBand",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -110402,10 +110658,11 @@
                   "device": "ib0",
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                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:99",
+                  "guid": "0x0002c903000b9399",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.85",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:99",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -110419,9 +110676,10 @@
                   "device": "ib1",
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-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9a",
+                  "guid": "0x0002c903000b939a",
                   "interface": "InfiniBand",
                   "kavlan": false,
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                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -110612,10 +110870,11 @@
                 "ib0": {
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                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a1",
+                  "guid": "0x0002c903000b93a1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.86",
                   "ip6": "fe80::202:c903:b:93a1",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a1",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -110626,8 +110885,9 @@
                 "ib1": {
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                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a2",
+                  "guid": "0x0002c903000b93a2",
                   "interface": "InfiniBand",
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                   "management": false,
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@@ -110803,10 +111063,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ad",
+                  "guid": "0x0002c903000b93ad",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.87",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ad",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -110820,9 +111081,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ae",
+                  "guid": "0x0002c903000b93ae",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ae",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -111021,10 +111283,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b1",
+                  "guid": "0x0002c903000b93b1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.88",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -111038,9 +111301,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b2",
+                  "guid": "0x0002c903000b93b2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -111239,10 +111503,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ed",
+                  "guid": "0x0002c903000b5ced",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.89",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ed",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -111256,9 +111521,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ee",
+                  "guid": "0x0002c903000b5cee",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ee",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -111457,10 +111723,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:69",
+                  "guid": "0x0002c903000b9169",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.9",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:69",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -111474,9 +111741,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6a",
+                  "guid": "0x0002c903000b916a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -111675,10 +111943,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:09",
+                  "guid": "0x0002c903000b5d09",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.90",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:09",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -111692,9 +111961,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0a",
+                  "guid": "0x0002c903000b5d0a",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0a",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -111893,10 +112163,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d1",
+                  "guid": "0x0002c903000b5cd1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.91",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -111910,9 +112181,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d2",
+                  "guid": "0x0002c903000b5cd2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -112111,10 +112383,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e5",
+                  "guid": "0x0002c903000b5ce5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.92",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -112128,9 +112401,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e6",
+                  "guid": "0x0002c903000b5ce6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -112329,10 +112603,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ad",
+                  "guid": "0x0002c903000b5ead",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.93",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ad",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -112346,9 +112621,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ae",
+                  "guid": "0x0002c903000b5eae",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ae",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -112540,10 +112816,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:95",
+                  "guid": "0x0002c903000b5c95",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.94",
                   "ip6": "fe80::202:c903:b:5c95",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:95",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -112554,8 +112831,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:96",
+                  "guid": "0x0002c903000b5c96",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:96",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -112731,10 +113009,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:95",
+                  "guid": "0x0002c903000b5e95",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.95",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:95",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -112748,9 +113027,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:96",
+                  "guid": "0x0002c903000b5e96",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:96",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -112942,10 +113222,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9d",
+                  "guid": "0x0002c903000b5e9d",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.96",
                   "ip6": "fe80::202:c903:b:5e9d",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9d",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -112956,8 +113237,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9e",
+                  "guid": "0x0002c903000b5e9e",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9e",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -113133,10 +113415,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d5",
+                  "guid": "0x0002c903000b5ed5",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.97",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d5",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -113150,9 +113433,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d6",
+                  "guid": "0x0002c903000b5ed6",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d6",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
@@ -113344,10 +113628,11 @@
                 "ib0": {
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:99",
+                  "guid": "0x0002c903000b5e99",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.98",
                   "ip6": "fe80::202:c903:b:5e99",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:99",
                   "management": false,
                   "mountable": true,
                   "mounted": true,
@@ -113358,8 +113643,9 @@
                 "ib1": {
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9a",
+                  "guid": "0x0002c903000b5e9a",
                   "interface": "InfiniBand",
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9a",
                   "management": false,
                   "mountable": false,
                   "mounted": false,
@@ -113535,10 +113821,11 @@
                   "device": "ib0",
                   "driver": "mlx4_core",
                   "enabled": true,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b1",
+                  "guid": "0x0002c903000b5eb1",
                   "interface": "InfiniBand",
                   "ip": "172.18.64.99",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b1",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": true,
@@ -113552,9 +113839,10 @@
                   "device": "ib1",
                   "driver": "mlx4_core",
                   "enabled": false,
-                  "guid": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b2",
+                  "guid": "0x0002c903000b5eb2",
                   "interface": "InfiniBand",
                   "kavlan": false,
+                  "mac": "20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b2",
                   "management": false,
                   "model": "MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]",
                   "mountable": false,
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-1.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-1.yaml
index 6e764dd8e54..7b1fe996228 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-1.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-1.yaml
@@ -40,17 +40,19 @@ graphene-1:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:81
+      guid: '0x0002c903000b9281'
       interface: InfiniBand
       ip: 172.18.64.1
       ip6: fe80::202:c903:b:9281
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:81
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:82
+      guid: '0x0002c903000b9282'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:82
       management: false
       rate: 10000000000
       version: MT26418
@@ -76,10 +78,10 @@ graphene-1:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: JPFOA3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.yaml
index f96a73601f8..729021a40b4 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-10.yaml
@@ -52,17 +52,19 @@ graphene-10:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6d
+      guid: '0x0002c903000b916d'
       interface: InfiniBand
       ip: 172.18.64.10
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6e
+      guid: '0x0002c903000b916e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.yaml
index 9f21039cb62..c651d950320 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-100.yaml
@@ -52,17 +52,19 @@ graphene-100:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0d
+      guid: '0x0002c903000b5d0d'
       interface: InfiniBand
       ip: 172.18.64.100
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0e
+      guid: '0x0002c903000b5d0e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.yaml
index 1a7ed550deb..34f16384a62 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-101.yaml
@@ -52,17 +52,19 @@ graphene-101:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d9
+      guid: '0x0002c903000b5cd9'
       interface: InfiniBand
       ip: 172.18.64.101
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:da
+      guid: '0x0002c903000b5cda'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:da
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.yaml
index 0cd3b0573a1..55019d225d9 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-102.yaml
@@ -52,17 +52,19 @@ graphene-102:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:71
+      guid: '0x0002c903000b5e71'
       interface: InfiniBand
       ip: 172.18.64.102
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:71
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:72
+      guid: '0x0002c903000b5e72'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:72
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.yaml
index cc87dae583b..cb230f0b11b 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-103.yaml
@@ -52,17 +52,19 @@ graphene-103:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:49
+      guid: '0x0002c903000b5d49'
       interface: InfiniBand
       ip: 172.18.64.103
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:49
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:4a
+      guid: '0x0002c903000b5d4a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:4a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.yaml
index bedf6b1bf22..0fde912c00d 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-104.yaml
@@ -52,17 +52,19 @@ graphene-104:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:15
+      guid: '0x0002c903000b5d15'
       interface: InfiniBand
       ip: 172.18.64.104
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:15
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:16
+      guid: '0x0002c903000b5d16'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:16
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.yaml
index ce5ec5e8ffa..b71f53e1a31 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-105.yaml
@@ -52,17 +52,19 @@ graphene-105:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:19
+      guid: '0x0002c903000b5d19'
       interface: InfiniBand
       ip: 172.18.64.105
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:19
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:1a
+      guid: '0x0002c903000b5d1a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:1a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.yaml
index 438e5d5e4d2..6dc618f2e5e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-106.yaml
@@ -52,17 +52,19 @@ graphene-106:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ad
+      guid: '0x0002c903000b5cad'
       interface: InfiniBand
       ip: 172.18.64.106
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ad
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ae
+      guid: '0x0002c903000b5cae'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ae
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.yaml
index 3f0a0e27061..5ede15f6d9f 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-107.yaml
@@ -52,17 +52,19 @@ graphene-107:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3d
+      guid: '0x0002c903000b5d3d'
       interface: InfiniBand
       ip: 172.18.64.107
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3e
+      guid: '0x0002c903000b5d3e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:3e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.yaml
index 0821fce8379..9208b926043 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-108.yaml
@@ -52,17 +52,19 @@ graphene-108:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:21
+      guid: '0x0002c903000b5d21'
       interface: InfiniBand
       ip: 172.18.64.108
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:21
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:22
+      guid: '0x0002c903000b5d22'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:22
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.yaml
index c13034620e0..84646af4114 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-109.yaml
@@ -52,17 +52,19 @@ graphene-109:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:25
+      guid: '0x0002c903000b5d25'
       interface: InfiniBand
       ip: 172.18.64.109
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:25
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:26
+      guid: '0x0002c903000b5d26'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:26
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.yaml
index 23fa20cbe78..a02023c89bf 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-11.yaml
@@ -52,17 +52,19 @@ graphene-11:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:71
+      guid: '0x0002c903000b9171'
       interface: InfiniBand
       ip: 172.18.64.11
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:71
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:72
+      guid: '0x0002c903000b9172'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:72
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.yaml
index e8779c8f212..86a14ea83ed 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-110.yaml
@@ -52,17 +52,19 @@ graphene-110:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:a9
+      guid: '0x0002c903000b5ca9'
       interface: InfiniBand
       ip: 172.18.64.110
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:a9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:aa
+      guid: '0x0002c903000b5caa'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:aa
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.yaml
index 4c12dbd6d99..8c9d47c3675 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-111.yaml
@@ -52,17 +52,19 @@ graphene-111:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:91
+      guid: '0x0002c903000c5591'
       interface: InfiniBand
       ip: 172.18.64.111
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:91
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:92
+      guid: '0x0002c903000c5592'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0c:55:92
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.yaml
index 305d8569de7..94738fa5e93 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-112.yaml
@@ -52,17 +52,19 @@ graphene-112:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9d
+      guid: '0x0002c903000b7e9d'
       interface: InfiniBand
       ip: 172.18.64.112
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9e
+      guid: '0x0002c903000b7e9e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:7e:9e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.yaml
index 7580e816b14..d4dfce5318b 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-113.yaml
@@ -52,17 +52,19 @@ graphene-113:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b5
+      guid: '0x0002c903000b93b5'
       interface: InfiniBand
       ip: 172.18.64.113
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b6
+      guid: '0x0002c903000b93b6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.yaml
index 1f3ce97c3f5..85b3e04f9b0 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-114.yaml
@@ -52,17 +52,19 @@ graphene-114:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c5
+      guid: '0x0002c903000b93c5'
       interface: InfiniBand
       ip: 172.18.64.114
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c6
+      guid: '0x0002c903000b93c6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.yaml
index ae3d1b01dc7..ee65966d167 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-115.yaml
@@ -52,17 +52,19 @@ graphene-115:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:05
+      guid: '0x0002c903000b9305'
       interface: InfiniBand
       ip: 172.18.64.115
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:05
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:06
+      guid: '0x0002c903000b9306'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:06
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.yaml
index 6c4e218372a..0bd856dfef8 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-116.yaml
@@ -52,17 +52,19 @@ graphene-116:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1d
+      guid: '0x0002c903000b931d'
       interface: InfiniBand
       ip: 172.18.64.116
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1e
+      guid: '0x0002c903000b931e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.yaml
index c7e73703622..9a473ae575f 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-117.yaml
@@ -52,17 +52,19 @@ graphene-117:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:25
+      guid: '0x0002c903000b9325'
       interface: InfiniBand
       ip: 172.18.64.117
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:25
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:26
+      guid: '0x0002c903000b9326'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:26
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.yaml
index 559510b676d..bb8d5b03a8e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-118.yaml
@@ -52,17 +52,19 @@ graphene-118:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d9
+      guid: '0x0002c903000b92d9'
       interface: InfiniBand
       ip: 172.18.64.118
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:da
+      guid: '0x0002c903000b92da'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:da
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.yaml
index 986510c0d51..c562d811268 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-119.yaml
@@ -52,17 +52,19 @@ graphene-119:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:19
+      guid: '0x0002c903000b9319'
       interface: InfiniBand
       ip: 172.18.64.119
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:19
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1a
+      guid: '0x0002c903000b931a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:1a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.yaml
index 57041b73cd8..10a57091448 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-12.yaml
@@ -52,17 +52,19 @@ graphene-12:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:81
+      guid: '0x0002c903000b9381'
       interface: InfiniBand
       ip: 172.18.64.12
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:81
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:82
+      guid: '0x0002c903000b9382'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:82
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.yaml
index c3522da58f5..12e31eac927 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-120.yaml
@@ -52,17 +52,19 @@ graphene-120:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:29
+      guid: '0x0002c903000b9329'
       interface: InfiniBand
       ip: 172.18.64.120
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:29
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2a
+      guid: '0x0002c903000b932a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.yaml
index c7f3e3b9433..8cb2a0acc09 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-121.yaml
@@ -52,17 +52,19 @@ graphene-121:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2d
+      guid: '0x0002c903000b932d'
       interface: InfiniBand
       ip: 172.18.64.121
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2e
+      guid: '0x0002c903000b932e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:2e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.yaml
index c728607127e..0ebaccde09f 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-122.yaml
@@ -52,17 +52,19 @@ graphene-122:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:85
+      guid: '0x0002c903000b5d85'
       interface: InfiniBand
       ip: 172.18.64.122
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:85
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:86
+      guid: '0x0002c903000b5d86'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:86
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-123.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-123.yaml
index 0e35631acc6..ee5e4251d6e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-123.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-123.yaml
@@ -41,17 +41,19 @@ graphene-123:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:19
+      guid: '0x0002c903000b9219'
       interface: InfiniBand
       ip: 172.18.64.123
       ip6: fe80::202:c903:b:9219
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:19
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1a
+      guid: '0x0002c903000b921a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1a
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,10 +79,10 @@ graphene-123:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.yaml
index a09620fed65..8a59cc2a330 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-124.yaml
@@ -52,17 +52,19 @@ graphene-124:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:61
+      guid: '0x0002c90300027f61'
       interface: InfiniBand
       ip: 172.18.64.124
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:61
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:62
+      guid: '0x0002c90300027f62'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:02:7f:62
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.yaml
index 5bfb9fa5e09..d0ffc6c3635 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-125.yaml
@@ -52,17 +52,19 @@ graphene-125:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:91
+      guid: '0x0002c903000b9391'
       interface: InfiniBand
       ip: 172.18.64.125
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:91
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:92
+      guid: '0x0002c903000b9392'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:92
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.yaml
index 4507a6611a6..fffb6ae4e91 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-126.yaml
@@ -52,17 +52,19 @@ graphene-126:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:51
+      guid: '0x0002c903000b9151'
       interface: InfiniBand
       ip: 172.18.64.126
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:51
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:52
+      guid: '0x0002c903000b9152'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:52
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.yaml
index b191aaa47b0..2129edbc4a0 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-127.yaml
@@ -52,17 +52,19 @@ graphene-127:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:85
+      guid: '0x0002c903000b9285'
       interface: InfiniBand
       ip: 172.18.64.127
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:85
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:86
+      guid: '0x0002c903000b9286'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:86
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.yaml
index 14fa4efe744..7242585ce53 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-128.yaml
@@ -52,17 +52,19 @@ graphene-128:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:15
+      guid: '0x0002c903000b9215'
       interface: InfiniBand
       ip: 172.18.64.128
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:15
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:16
+      guid: '0x0002c903000b9216'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:16
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.yaml
index 8db9c3698d2..2b1fd429dff 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-129.yaml
@@ -52,17 +52,19 @@ graphene-129:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:05
+      guid: '0x0002c903000b9205'
       interface: InfiniBand
       ip: 172.18.64.129
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:05
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:06
+      guid: '0x0002c903000b9206'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:06
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.yaml
index 6a96e45b917..030c021cb30 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-13.yaml
@@ -52,17 +52,19 @@ graphene-13:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:85
+      guid: '0x0002c903000b9385'
       interface: InfiniBand
       ip: 172.18.64.13
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:85
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:86
+      guid: '0x0002c903000b9386'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:86
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.yaml
index 94d69d24190..8c907dff756 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-130.yaml
@@ -52,17 +52,19 @@ graphene-130:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:09
+      guid: '0x0002c903000b9209'
       interface: InfiniBand
       ip: 172.18.64.130
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:09
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0a
+      guid: '0x0002c903000b920a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.yaml
index c5044db9308..50a7df0d7e1 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-131.yaml
@@ -52,17 +52,19 @@ graphene-131:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4d
+      guid: '0x0002c903000b914d'
       interface: InfiniBand
       ip: 172.18.64.131
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4e
+      guid: '0x0002c903000b914e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.yaml
index 255c85f6161..346d745371a 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-132.yaml
@@ -52,17 +52,19 @@ graphene-132:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0d
+      guid: '0x0002c903000b920d'
       interface: InfiniBand
       ip: 172.18.64.132
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0e
+      guid: '0x0002c903000b920e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:0e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.yaml
index 53bb4733402..40684b4612e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-133.yaml
@@ -52,17 +52,19 @@ graphene-133:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b3
+      guid: '0x0002c9030005f7b3'
       interface: InfiniBand
       ip: 172.18.64.133
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b3
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b4
+      guid: '0x0002c9030005f7b4'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:b4
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.yaml
index 789faf4c327..b04406001c7 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-134.yaml
@@ -52,17 +52,19 @@ graphene-134:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:4f
+      guid: '0x0002c9030005f44f'
       interface: InfiniBand
       ip: 172.18.64.134
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:4f
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:50
+      guid: '0x0002c9030005f450'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:50
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.yaml
index bbd4507262f..87c2e5c0521 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-135.yaml
@@ -52,17 +52,19 @@ graphene-135:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c7
+      guid: '0x0002c9030005f4c7'
       interface: InfiniBand
       ip: 172.18.64.135
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c7
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c8
+      guid: '0x0002c9030005f4c8'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c8
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.yaml
index cab3b7b0511..62c4c6c6ac4 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-136.yaml
@@ -52,17 +52,19 @@ graphene-136:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:47
+      guid: '0x0002c9030005f847'
       interface: InfiniBand
       ip: 172.18.64.136
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:47
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:48
+      guid: '0x0002c9030005f848'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:48
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.yaml
index 0cbc1edca63..8d790532807 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-137.yaml
@@ -52,17 +52,19 @@ graphene-137:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:47
+      guid: '0x0002c9030005f647'
       interface: InfiniBand
       ip: 172.18.64.137
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:47
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:48
+      guid: '0x0002c9030005f648'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f6:48
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.yaml
index 3e931f6c2ee..098fd5e188a 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-138.yaml
@@ -52,17 +52,19 @@ graphene-138:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c3
+      guid: '0x0002c9030005f4c3'
       interface: InfiniBand
       ip: 172.18.64.138
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c3
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c4
+      guid: '0x0002c9030005f4c4'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:c4
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.yaml
index ed3c1a5f7b1..9e70d5766b0 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-139.yaml
@@ -52,17 +52,19 @@ graphene-139:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:ff
+      guid: '0x0002c9030005f7ff'
       interface: InfiniBand
       ip: 172.18.64.139
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:ff
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:00
+      guid: '0x0002c9030005f800'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:00
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.yaml
index 9a4a9e6c343..66c602ae30c 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-14.yaml
@@ -52,17 +52,19 @@ graphene-14:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e1
+      guid: '0x0002c903000b93e1'
       interface: InfiniBand
       ip: 172.18.64.14
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e2
+      guid: '0x0002c903000b93e2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.yaml
index ea1514f2120..db74e9a3e38 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-140.yaml
@@ -52,17 +52,19 @@ graphene-140:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:9f
+      guid: '0x0002c9030005f79f'
       interface: InfiniBand
       ip: 172.18.64.140
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:9f
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a0
+      guid: '0x0002c9030005f7a0'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a0
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.yaml
index 530bc51db1b..f45aaed70c6 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-141.yaml
@@ -52,17 +52,19 @@ graphene-141:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:93
+      guid: '0x0002c9030005f793'
       interface: InfiniBand
       ip: 172.18.64.141
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:93
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:94
+      guid: '0x0002c9030005f794'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:94
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.yaml
index ffb4d0c71db..043db127703 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-142.yaml
@@ -52,17 +52,19 @@ graphene-142:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a7
+      guid: '0x0002c9030005f7a7'
       interface: InfiniBand
       ip: 172.18.64.142
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a7
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a8
+      guid: '0x0002c9030005f7a8'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f7:a8
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.yaml
index 68ff13dbcdb..2bd5c5eb055 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-143.yaml
@@ -52,17 +52,19 @@ graphene-143:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:97
+      guid: '0x0002c9030005f497'
       interface: InfiniBand
       ip: 172.18.64.143
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:97
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:98
+      guid: '0x0002c9030005f498'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f4:98
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-144.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-144.yaml
index 2a46905e4ef..5136d30617e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-144.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-144.yaml
@@ -41,17 +41,19 @@ graphene-144:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5b
+      guid: '0x0002c9030005f85b'
       interface: InfiniBand
       ip: 172.18.64.144
       ip6: fe80::202:c903:5:f85b
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5b
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5c
+      guid: '0x0002c9030005f85c'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:05:f8:5c
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,10 +79,10 @@ graphene-144:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.yaml
index 6ee932dbd61..471c823f280 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-15.yaml
@@ -52,17 +52,19 @@ graphene-15:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c9
+      guid: '0x0002c903000b93c9'
       interface: InfiniBand
       ip: 172.18.64.15
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ca
+      guid: '0x0002c903000b93ca'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ca
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.yaml
index b3b45e64c6c..80e01656b1d 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-16.yaml
@@ -52,17 +52,19 @@ graphene-16:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:75
+      guid: '0x0002c903000b9375'
       interface: InfiniBand
       ip: 172.18.64.16
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:75
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:76
+      guid: '0x0002c903000b9376'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:76
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.yaml
index bbd16ca50e2..f973f808d7d 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-17.yaml
@@ -52,17 +52,19 @@ graphene-17:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:71
+      guid: '0x0002c903000b9371'
       interface: InfiniBand
       ip: 172.18.64.17
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:71
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:72
+      guid: '0x0002c903000b9372'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:72
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.yaml
index 5c13eba4c01..3bbb1395d34 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-18.yaml
@@ -52,17 +52,19 @@ graphene-18:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7d
+      guid: '0x0002c903000b937d'
       interface: InfiniBand
       ip: 172.18.64.18
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7e
+      guid: '0x0002c903000b937e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.yaml
index 01f3549ff1b..6b45d76c31e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-19.yaml
@@ -52,17 +52,19 @@ graphene-19:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:55
+      guid: '0x0002c903000b9155'
       interface: InfiniBand
       ip: 172.18.64.19
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:55
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:56
+      guid: '0x0002c903000b9156'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:56
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.yaml
index 645c7b1f363..0bd1b707fce 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-2.yaml
@@ -52,17 +52,19 @@ graphene-2:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5d
+      guid: '0x0002c903000b915d'
       interface: InfiniBand
       ip: 172.18.64.2
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5e
+      guid: '0x0002c903000b915e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.yaml
index e8f036b9ee5..15ec63b4075 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-20.yaml
@@ -52,17 +52,19 @@ graphene-20:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:45
+      guid: '0x0002c903000b9145'
       interface: InfiniBand
       ip: 172.18.64.20
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:45
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:46
+      guid: '0x0002c903000b9146'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:46
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.yaml
index 35634e255e2..b1601429fad 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-21.yaml
@@ -52,17 +52,19 @@ graphene-21:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6d
+      guid: '0x0002c9030004536d'
       interface: InfiniBand
       ip: 172.18.64.21
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6e
+      guid: '0x0002c9030004536e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:04:53:6e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.yaml
index 726f4ad9cf5..3c88c0adfa9 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-22.yaml
@@ -52,17 +52,19 @@ graphene-22:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:79
+      guid: '0x0002c903000b9379'
       interface: InfiniBand
       ip: 172.18.64.22
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:79
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7a
+      guid: '0x0002c903000b937a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:7a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.yaml
index 91b44d742a1..449e7ed2cd7 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-23.yaml
@@ -52,17 +52,19 @@ graphene-23:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:65
+      guid: '0x0002c903000b9365'
       interface: InfiniBand
       ip: 172.18.64.23
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:65
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:66
+      guid: '0x0002c903000b9366'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:66
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.yaml
index 8fcb8b5c50a..a0f061aefc1 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-24.yaml
@@ -52,17 +52,19 @@ graphene-24:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:cd
+      guid: '0x0002c903000b92cd'
       interface: InfiniBand
       ip: 172.18.64.24
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:cd
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ce
+      guid: '0x0002c903000b92ce'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ce
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.yaml
index a52924bd020..98d36d9e7ad 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-25.yaml
@@ -52,17 +52,19 @@ graphene-25:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a5
+      guid: '0x0002c903000b92a5'
       interface: InfiniBand
       ip: 172.18.64.25
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a6
+      guid: '0x0002c903000b92a6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.yaml
index 45d5a105266..f9fe2c16073 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-26.yaml
@@ -52,17 +52,19 @@ graphene-26:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9d
+      guid: '0x0002c903000b929d'
       interface: InfiniBand
       ip: 172.18.64.26
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9e
+      guid: '0x0002c903000b929e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.yaml
index 808e60a204a..50f069fdd5d 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-27.yaml
@@ -52,17 +52,19 @@ graphene-27:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:89
+      guid: '0x0002c903000b9289'
       interface: InfiniBand
       ip: 172.18.64.27
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:89
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8a
+      guid: '0x0002c903000b928a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-28.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-28.yaml
index 0e313f70bf6..8fd61f10763 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-28.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-28.yaml
@@ -41,17 +41,19 @@ graphene-28:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8d
+      guid: '0x0002c903000b928d'
       interface: InfiniBand
       ip: 172.18.64.28
       ip6: fe80::202:c903:b:928d
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8d
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8e
+      guid: '0x0002c903000b928e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:8e
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,10 +79,10 @@ graphene-28:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.yaml
index c7b4d872da5..6c469ffd2f1 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-29.yaml
@@ -52,17 +52,19 @@ graphene-29:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:dd
+      guid: '0x0002c903000b90dd'
       interface: InfiniBand
       ip: 172.18.64.29
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:dd
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:de
+      guid: '0x0002c903000b90de'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:de
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-3.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-3.yaml
index 9b4d85ba7b0..bc8025e6a98 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-3.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-3.yaml
@@ -41,17 +41,19 @@ graphene-3:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:59
+      guid: '0x0002c903000b9159'
       interface: InfiniBand
       ip: 172.18.64.3
       ip6: fe80::202:c903:b:9159
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:59
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5a
+      guid: '0x0002c903000b915a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:5a
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,10 +79,10 @@ graphene-3:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.yaml
index 20b619b0814..13eb0f046fd 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-30.yaml
@@ -52,17 +52,19 @@ graphene-30:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:79
+      guid: '0x0002c903000b9279'
       interface: InfiniBand
       ip: 172.18.64.30
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:79
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7a
+      guid: '0x0002c903000b927a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.yaml
index ebcc7c473f2..a734e4d1808 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-31.yaml
@@ -52,17 +52,19 @@ graphene-31:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1d
+      guid: '0x0002c903000b921d'
       interface: InfiniBand
       ip: 172.18.64.31
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1e
+      guid: '0x0002c903000b921e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:1e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.yaml
index 751c6e240ed..73cf68f58f8 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-32.yaml
@@ -52,17 +52,19 @@ graphene-32:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7d
+      guid: '0x0002c903000b927d'
       interface: InfiniBand
       ip: 172.18.64.32
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7e
+      guid: '0x0002c903000b927e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:7e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.yaml
index d8e1c8c38d8..869d81c86b4 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-33.yaml
@@ -52,17 +52,19 @@ graphene-33:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:d9
+      guid: '0x0002c903000b90d9'
       interface: InfiniBand
       ip: 172.18.64.33
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:d9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:da
+      guid: '0x0002c903000b90da'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:90:da
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.yaml
index 3d65ecae18d..b63396d2cff 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-34.yaml
@@ -52,17 +52,19 @@ graphene-34:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:65
+      guid: '0x0002c903000b9165'
       interface: InfiniBand
       ip: 172.18.64.34
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:65
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:66
+      guid: '0x0002c903000b9166'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:66
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.yaml
index 290f1021139..d55b616235a 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-35.yaml
@@ -52,17 +52,19 @@ graphene-35:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:ef
+      guid: '0x0002c9030001d5ef'
       interface: InfiniBand
       ip: 172.18.64.35
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:ef
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:f0
+      guid: '0x0002c9030001d5f0'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:01:d5:f0
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-36.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-36.yaml
index 0d620d2ed09..5b0e1020193 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-36.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-36.yaml
@@ -41,17 +41,19 @@ graphene-36:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b9
+      guid: '0x0002c903000b92b9'
       interface: InfiniBand
       ip: 172.18.64.36
       ip6: fe80::202:c903:b:92b9
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b9
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ba
+      guid: '0x0002c903000b92ba'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ba
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,9 +79,9 @@ graphene-36:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.yaml
index 30108843a42..edd7d7da4db 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-37.yaml
@@ -52,17 +52,19 @@ graphene-37:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c5
+      guid: '0x0002c903000b92c5'
       interface: InfiniBand
       ip: 172.18.64.37
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c6
+      guid: '0x0002c903000b92c6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.yaml
index cc9cb3c27e1..350f8f9e5a5 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-38.yaml
@@ -52,17 +52,19 @@ graphene-38:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b1
+      guid: '0x0002c903000b92b1'
       interface: InfiniBand
       ip: 172.18.64.38
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b2
+      guid: '0x0002c903000b92b2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.yaml
index 36d27790847..0ac226be03b 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-39.yaml
@@ -52,16 +52,18 @@ graphene-39:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c1
+      guid: '0x0002c903000b92c1'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c2
+      guid: '0x0002c903000b92c2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:c2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.yaml
index b3ce04a9436..6e5a938c446 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-4.yaml
@@ -52,17 +52,19 @@ graphene-4:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:bd
+      guid: '0x0002c903000b92bd'
       interface: InfiniBand
       ip: 172.18.64.4
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:bd
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:be
+      guid: '0x0002c903000b92be'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:be
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-40.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-40.yaml
index bf6311ce304..e35319363b2 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-40.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-40.yaml
@@ -37,17 +37,19 @@ graphene-40:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:cd
+      guid: '0x0002c903000b93cd'
       interface: InfiniBand
       ip: 172.18.64.40
       ip6: fe80::202:c903:b:93cd
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:cd
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ce
+      guid: '0x0002c903000b93ce'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ce
       management: false
       rate: 10000000000
       version: MT26418
@@ -73,9 +75,9 @@ graphene-40:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.yaml
index a3cdba45a24..ccb8c796279 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-41.yaml
@@ -52,17 +52,19 @@ graphene-41:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:99
+      guid: '0x0002c903000b9299'
       interface: InfiniBand
       ip: 172.18.64.41
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:99
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9a
+      guid: '0x0002c903000b929a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:9a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.yaml
index 882133659c0..f6277bd2971 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-42.yaml
@@ -52,17 +52,19 @@ graphene-42:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a9
+      guid: '0x0002c903000b92a9'
       interface: InfiniBand
       ip: 172.18.64.42
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:aa
+      guid: '0x0002c903000b92aa'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:aa
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.yaml
index 9a4b8f48d26..6739065c0eb 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-43.yaml
@@ -52,17 +52,19 @@ graphene-43:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ad
+      guid: '0x0002c903000b92ad'
       interface: InfiniBand
       ip: 172.18.64.43
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ad
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ae
+      guid: '0x0002c903000b92ae'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ae
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.yaml
index ed138f1bdeb..2ec832ee3ae 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-44.yaml
@@ -52,17 +52,19 @@ graphene-44:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b5
+      guid: '0x0002c903000b92b5'
       interface: InfiniBand
       ip: 172.18.64.44
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b6
+      guid: '0x0002c903000b92b6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:b6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.yaml
index 15011e909f0..373abb79920 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-45.yaml
@@ -52,17 +52,19 @@ graphene-45:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:21
+      guid: '0x0002c903000b9321'
       interface: InfiniBand
       ip: 172.18.64.45
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:21
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:22
+      guid: '0x0002c903000b9322'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:22
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.yaml
index 2dddd1b6904..07d25f9445d 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-46.yaml
@@ -52,17 +52,19 @@ graphene-46:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d5
+      guid: '0x0002c903000b93d5'
       interface: InfiniBand
       ip: 172.18.64.46
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d6
+      guid: '0x0002c903000b93d6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.yaml
index ddd2a19031c..7d25aa51c2b 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-47.yaml
@@ -52,17 +52,19 @@ graphene-47:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e5
+      guid: '0x0002c903000b93e5'
       interface: InfiniBand
       ip: 172.18.64.47
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e6
+      guid: '0x0002c903000b93e6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:e6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.yaml
index 7eade962fc0..0e04420ed63 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-48.yaml
@@ -52,17 +52,19 @@ graphene-48:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:dd
+      guid: '0x0002c903000b93dd'
       interface: InfiniBand
       ip: 172.18.64.48
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:dd
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:de
+      guid: '0x0002c903000b93de'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:de
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.yaml
index 3aed7c008a0..3cf358cbf24 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-49.yaml
@@ -52,17 +52,19 @@ graphene-49:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d1
+      guid: '0x0002c903000b93d1'
       interface: InfiniBand
       ip: 172.18.64.49
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d2
+      guid: '0x0002c903000b93d2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.yaml
index 09ee7593aa4..52ab089b5c1 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-5.yaml
@@ -52,17 +52,19 @@ graphene-5:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:79
+      guid: '0x0002c903000b9179'
       interface: InfiniBand
       ip: 172.18.64.5
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:79
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7a
+      guid: '0x0002c903000b917a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.yaml
index 041c7c8149d..4442f862f90 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-50.yaml
@@ -52,17 +52,19 @@ graphene-50:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f1
+      guid: '0x0002c903000b92f1'
       interface: InfiniBand
       ip: 172.18.64.50
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f2
+      guid: '0x0002c903000b92f2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.yaml
index c4ca625ef1d..bd334f28c36 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-51.yaml
@@ -52,17 +52,19 @@ graphene-51:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e9
+      guid: '0x0002c903000b92e9'
       interface: InfiniBand
       ip: 172.18.64.51
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ea
+      guid: '0x0002c903000b92ea'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ea
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.yaml
index 8de8d383f4e..4a1a07ae688 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-52.yaml
@@ -52,17 +52,19 @@ graphene-52:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f9
+      guid: '0x0002c903000b92f9'
       interface: InfiniBand
       ip: 172.18.64.52
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fa
+      guid: '0x0002c903000b92fa'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fa
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.yaml
index ed4bbad64a0..d4ed9813874 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-53.yaml
@@ -52,17 +52,19 @@ graphene-53:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:09
+      guid: '0x0002c903000b9309'
       interface: InfiniBand
       ip: 172.18.64.53
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:09
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0a
+      guid: '0x0002c903000b930a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.yaml
index a00519914bb..ae59be2dbff 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-54.yaml
@@ -52,17 +52,19 @@ graphene-54:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:15
+      guid: '0x0002c903000b9315'
       interface: InfiniBand
       ip: 172.18.64.54
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:15
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:16
+      guid: '0x0002c903000b9316'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:16
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.yaml
index a578bf6333b..2a5ddc93a1b 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-55.yaml
@@ -52,17 +52,19 @@ graphene-55:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0d
+      guid: '0x0002c903000b930d'
       interface: InfiniBand
       ip: 172.18.64.55
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0e
+      guid: '0x0002c903000b930e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:0e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-56.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-56.yaml
index 30566026b45..a6806c33e86 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-56.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-56.yaml
@@ -41,17 +41,19 @@ graphene-56:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:89
+      guid: '0x0002c903000b9189'
       interface: InfiniBand
       ip: 172.18.64.56
       ip6: fe80::202:c903:b:9189
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:89
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8a
+      guid: '0x0002c903000b918a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8a
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,9 +79,9 @@ graphene-56:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.yaml
index 96938a07a34..a3b6dcd0f79 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-57.yaml
@@ -52,17 +52,19 @@ graphene-57:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8d
+      guid: '0x0002c903000b918d'
       interface: InfiniBand
       ip: 172.18.64.57
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8e
+      guid: '0x0002c903000b918e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:8e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.yaml
index e83f6953dc7..eb4036d28c5 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-58.yaml
@@ -52,17 +52,19 @@ graphene-58:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9d
+      guid: '0x0002c903000b919d'
       interface: InfiniBand
       ip: 172.18.64.58
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9e
+      guid: '0x0002c903000b919e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.yaml
index 56ee5234efc..8ce927b1e96 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-59.yaml
@@ -52,17 +52,19 @@ graphene-59:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:95
+      guid: '0x0002c903000b9195'
       interface: InfiniBand
       ip: 172.18.64.59
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:95
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:96
+      guid: '0x0002c903000b9196'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:96
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.yaml
index 0aaea6a6977..3f9f5865cf1 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-6.yaml
@@ -52,17 +52,19 @@ graphene-6:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7d
+      guid: '0x0002c903000b917d'
       interface: InfiniBand
       ip: 172.18.64.6
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7e
+      guid: '0x0002c903000b917e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:7e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.yaml
index 7e54d8d1970..aa1241a0df1 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-60.yaml
@@ -52,17 +52,19 @@ graphene-60:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:85
+      guid: '0x0002c903000b9185'
       interface: InfiniBand
       ip: 172.18.64.60
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:85
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:86
+      guid: '0x0002c903000b9186'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:86
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.yaml
index 6f289ba1454..b71e2f55fd5 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-61.yaml
@@ -52,17 +52,19 @@ graphene-61:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:91
+      guid: '0x0002c903000b9191'
       interface: InfiniBand
       ip: 172.18.64.61
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:91
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:92
+      guid: '0x0002c903000b9192'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:92
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.yaml
index ddbfc5a25f7..522dba575db 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-62.yaml
@@ -52,17 +52,19 @@ graphene-62:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:99
+      guid: '0x0002c903000b9199'
       interface: InfiniBand
       ip: 172.18.64.62
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:99
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9a
+      guid: '0x0002c903000b919a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:9a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.yaml
index 557d6192133..425b7d26854 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-63.yaml
@@ -52,17 +52,19 @@ graphene-63:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:81
+      guid: '0x0002c903000b9181'
       interface: InfiniBand
       ip: 172.18.64.63
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:81
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:82
+      guid: '0x0002c903000b9182'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:82
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.yaml
index 377e457f29c..892ba214512 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-64.yaml
@@ -52,17 +52,19 @@ graphene-64:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a1
+      guid: '0x0002c903000b92a1'
       interface: InfiniBand
       ip: 172.18.64.64
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a2
+      guid: '0x0002c903000b92a2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:a2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.yaml
index e99fca63f98..2ccf28a021b 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-65.yaml
@@ -52,17 +52,19 @@ graphene-65:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d9
+      guid: '0x0002c903000b93d9'
       interface: InfiniBand
       ip: 172.18.64.65
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:d9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:da
+      guid: '0x0002c903000b93da'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:da
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.yaml
index 44e76ae0306..8597a2e10e1 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-66.yaml
@@ -52,17 +52,19 @@ graphene-66:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:49
+      guid: '0x0002c903000b9149'
       interface: InfiniBand
       ip: 172.18.64.66
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:49
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4a
+      guid: '0x0002c903000b914a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:4a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.yaml
index 7b1a7148cd4..c1be9e3e54c 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-67.yaml
@@ -52,17 +52,19 @@ graphene-67:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b9
+      guid: '0x0002c903000b93b9'
       interface: InfiniBand
       ip: 172.18.64.67
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ba
+      guid: '0x0002c903000b93ba'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ba
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.yaml
index 2ec5cf3116f..97ea103504e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-68.yaml
@@ -52,17 +52,19 @@ graphene-68:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:91
+      guid: '0x0002c903000b9291'
       interface: InfiniBand
       ip: 172.18.64.68
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:91
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:92
+      guid: '0x0002c903000b9292'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:92
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.yaml
index d43eee0378a..4656884fdea 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-69.yaml
@@ -52,17 +52,19 @@ graphene-69:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c1
+      guid: '0x0002c903000b93c1'
       interface: InfiniBand
       ip: 172.18.64.69
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c2
+      guid: '0x0002c903000b93c2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:c2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.yaml
index 3df2352b9ad..26b82c85ab0 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-7.yaml
@@ -52,17 +52,19 @@ graphene-7:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:61
+      guid: '0x0002c903000b9161'
       interface: InfiniBand
       ip: 172.18.64.7
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:61
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:62
+      guid: '0x0002c903000b9162'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:62
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.yaml
index 15cff5622aa..1b547ce0141 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-70.yaml
@@ -52,17 +52,19 @@ graphene-70:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:11
+      guid: '0x0002c903000b9311'
       interface: InfiniBand
       ip: 172.18.64.70
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:11
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:12
+      guid: '0x0002c903000b9312'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:12
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.yaml
index b98ea47ad97..1e32cb8a3ab 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-71.yaml
@@ -52,17 +52,19 @@ graphene-71:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ed
+      guid: '0x0002c903000b92ed'
       interface: InfiniBand
       ip: 172.18.64.71
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ed
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ee
+      guid: '0x0002c903000b92ee'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:ee
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.yaml
index 4e0b2158fa4..5d46546b76a 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-72.yaml
@@ -52,17 +52,19 @@ graphene-72:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:95
+      guid: '0x0002c903000b9295'
       interface: InfiniBand
       ip: 172.18.64.72
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:95
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:96
+      guid: '0x0002c903000b9296'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:96
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.yaml
index 4a92aecbd65..56053d353b3 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-73.yaml
@@ -52,17 +52,19 @@ graphene-73:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fd
+      guid: '0x0002c903000b92fd'
       interface: InfiniBand
       ip: 172.18.64.73
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fd
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fe
+      guid: '0x0002c903000b92fe'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:fe
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.yaml
index 2fd8f38bb48..709792d139d 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-74.yaml
@@ -52,17 +52,19 @@ graphene-74:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:dd
+      guid: '0x0002c903000b92dd'
       interface: InfiniBand
       ip: 172.18.64.74
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:dd
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:de
+      guid: '0x0002c903000b92de'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:de
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.yaml
index 009c03fca8e..16038cacbdd 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-75.yaml
@@ -52,17 +52,19 @@ graphene-75:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e5
+      guid: '0x0002c903000b92e5'
       interface: InfiniBand
       ip: 172.18.64.75
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e6
+      guid: '0x0002c903000b92e6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.yaml
index ab756990cf2..7dd5ed845b9 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-76.yaml
@@ -52,17 +52,19 @@ graphene-76:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d5
+      guid: '0x0002c903000b92d5'
       interface: InfiniBand
       ip: 172.18.64.76
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d6
+      guid: '0x0002c903000b92d6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.yaml
index fbe89250b1e..8a46fd95b97 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-77.yaml
@@ -52,17 +52,19 @@ graphene-77:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e1
+      guid: '0x0002c903000b92e1'
       interface: InfiniBand
       ip: 172.18.64.77
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e2
+      guid: '0x0002c903000b92e2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:e2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.yaml
index b8538124dfa..fdedd983af8 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-78.yaml
@@ -52,17 +52,19 @@ graphene-78:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:01
+      guid: '0x0002c903000b9301'
       interface: InfiniBand
       ip: 172.18.64.78
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:01
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:02
+      guid: '0x0002c903000b9302'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:02
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.yaml
index 438be08fb25..1815ed5aa93 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-79.yaml
@@ -52,17 +52,19 @@ graphene-79:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f5
+      guid: '0x0002c903000b92f5'
       interface: InfiniBand
       ip: 172.18.64.79
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f6
+      guid: '0x0002c903000b92f6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:f6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.yaml
index f05853fc486..da64c006635 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-8.yaml
@@ -52,17 +52,19 @@ graphene-8:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:75
+      guid: '0x0002c903000b9175'
       interface: InfiniBand
       ip: 172.18.64.8
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:75
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:76
+      guid: '0x0002c903000b9176'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:76
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.yaml
index 7284e9f0812..a2f55d8416f 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-80.yaml
@@ -52,17 +52,19 @@ graphene-80:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d1
+      guid: '0x0002c903000b92d1'
       interface: InfiniBand
       ip: 172.18.64.80
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d2
+      guid: '0x0002c903000b92d2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:92:d2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.yaml
index d26e74a297e..aaf716d7ddf 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-81.yaml
@@ -52,17 +52,19 @@ graphene-81:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a9
+      guid: '0x0002c903000b93a9'
       interface: InfiniBand
       ip: 172.18.64.81
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a9
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:aa
+      guid: '0x0002c903000b93aa'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:aa
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.yaml
index d766569d851..9f16d5aefdb 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-82.yaml
@@ -52,17 +52,19 @@ graphene-82:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:95
+      guid: '0x0002c903000b9395'
       interface: InfiniBand
       ip: 172.18.64.82
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:95
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:96
+      guid: '0x0002c903000b9396'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:96
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-83.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-83.yaml
index 85c5680d674..c6d8e021517 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-83.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-83.yaml
@@ -40,17 +40,19 @@ graphene-83:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a5
+      guid: '0x0002c903000b93a5'
       interface: InfiniBand
       ip: 172.18.64.83
       ip6: fe80::202:c903:b:93a5
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a5
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a6
+      guid: '0x0002c903000b93a6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a6
       management: false
       rate: 10000000000
       version: MT26418
@@ -76,10 +78,10 @@ graphene-83:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: JPFOA3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.yaml
index dc4923399eb..771b55a0569 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-84.yaml
@@ -52,17 +52,19 @@ graphene-84:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9d
+      guid: '0x0002c903000b939d'
       interface: InfiniBand
       ip: 172.18.64.84
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9d
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9e
+      guid: '0x0002c903000b939e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9e
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.yaml
index 3504752abaf..f097b0c4eaf 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-85.yaml
@@ -52,17 +52,19 @@ graphene-85:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:99
+      guid: '0x0002c903000b9399'
       interface: InfiniBand
       ip: 172.18.64.85
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:99
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9a
+      guid: '0x0002c903000b939a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:9a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-86.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-86.yaml
index c4fec3d7ac1..21993d686d3 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-86.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-86.yaml
@@ -43,18 +43,20 @@ graphene-86:
       mounted: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a1
+      guid: '0x0002c903000b93a1'
       interface: InfiniBand
       ip: 172.18.64.86
       ip6: fe80::202:c903:b:93a1
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a1
       management: false
       mounted: true
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a2
+      guid: '0x0002c903000b93a2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:a2
       management: false
       mounted: false
       rate: 10000000000
@@ -81,10 +83,10 @@ graphene-86:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: JPFOA3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.yaml
index ca722c86df1..8b122f186a5 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-87.yaml
@@ -52,17 +52,19 @@ graphene-87:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ad
+      guid: '0x0002c903000b93ad'
       interface: InfiniBand
       ip: 172.18.64.87
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ad
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ae
+      guid: '0x0002c903000b93ae'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:ae
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.yaml
index 2f5996c20c6..fc3d12fe42c 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-88.yaml
@@ -52,17 +52,19 @@ graphene-88:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b1
+      guid: '0x0002c903000b93b1'
       interface: InfiniBand
       ip: 172.18.64.88
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b2
+      guid: '0x0002c903000b93b2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:93:b2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.yaml
index 9ab9bf6720c..b8b7aadd925 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-89.yaml
@@ -52,17 +52,19 @@ graphene-89:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ed
+      guid: '0x0002c903000b5ced'
       interface: InfiniBand
       ip: 172.18.64.89
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ed
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ee
+      guid: '0x0002c903000b5cee'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:ee
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.yaml
index 62f38d4f70a..58a89d5f4f3 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-9.yaml
@@ -52,17 +52,19 @@ graphene-9:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:69
+      guid: '0x0002c903000b9169'
       interface: InfiniBand
       ip: 172.18.64.9
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:69
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6a
+      guid: '0x0002c903000b916a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:91:6a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.yaml
index f49726ebdea..b95e7d79680 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-90.yaml
@@ -52,17 +52,19 @@ graphene-90:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:09
+      guid: '0x0002c903000b5d09'
       interface: InfiniBand
       ip: 172.18.64.90
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:09
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0a
+      guid: '0x0002c903000b5d0a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5d:0a
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.yaml
index a53b935f022..84078bf0ff4 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-91.yaml
@@ -52,17 +52,19 @@ graphene-91:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d1
+      guid: '0x0002c903000b5cd1'
       interface: InfiniBand
       ip: 172.18.64.91
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d2
+      guid: '0x0002c903000b5cd2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:d2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.yaml
index efee9e31669..5e5893063c5 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-92.yaml
@@ -52,17 +52,19 @@ graphene-92:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e5
+      guid: '0x0002c903000b5ce5'
       interface: InfiniBand
       ip: 172.18.64.92
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e6
+      guid: '0x0002c903000b5ce6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:e6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.yaml
index 214bd0c9b59..9c9f51c9865 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-93.yaml
@@ -52,17 +52,19 @@ graphene-93:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ad
+      guid: '0x0002c903000b5ead'
       interface: InfiniBand
       ip: 172.18.64.93
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ad
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ae
+      guid: '0x0002c903000b5eae'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:ae
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-94.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-94.yaml
index f64cd0e576d..a419e84fe88 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-94.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-94.yaml
@@ -41,17 +41,19 @@ graphene-94:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:95
+      guid: '0x0002c903000b5c95'
       interface: InfiniBand
       ip: 172.18.64.94
       ip6: fe80::202:c903:b:5c95
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:95
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:96
+      guid: '0x0002c903000b5c96'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5c:96
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,10 +79,10 @@ graphene-94:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.yaml
index 6fb1c6c8f2e..51172eacf51 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-95.yaml
@@ -52,17 +52,19 @@ graphene-95:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:95
+      guid: '0x0002c903000b5e95'
       interface: InfiniBand
       ip: 172.18.64.95
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:95
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:96
+      guid: '0x0002c903000b5e96'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:96
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-96.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-96.yaml
index d217b76ddd0..d5598908806 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-96.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-96.yaml
@@ -41,17 +41,19 @@ graphene-96:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9d
+      guid: '0x0002c903000b5e9d'
       interface: InfiniBand
       ip: 172.18.64.96
       ip6: fe80::202:c903:b:5e9d
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9d
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9e
+      guid: '0x0002c903000b5e9e'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9e
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,10 +79,10 @@ graphene-96:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.yaml
index ae67bb9e110..78f4f4050af 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-97.yaml
@@ -52,17 +52,19 @@ graphene-97:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d5
+      guid: '0x0002c903000b5ed5'
       interface: InfiniBand
       ip: 172.18.64.97
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d5
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d6
+      guid: '0x0002c903000b5ed6'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:d6
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-98.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-98.yaml
index 87f805b699e..c860f4f227e 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-98.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-98.yaml
@@ -41,17 +41,19 @@ graphene-98:
       management: false
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:99
+      guid: '0x0002c903000b5e99'
       interface: InfiniBand
       ip: 172.18.64.98
       ip6: fe80::202:c903:b:5e99
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:99
       management: false
       rate: 20000000000
       version: MT26418
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9a
+      guid: '0x0002c903000b5e9a'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:9a
       management: false
       rate: 10000000000
       version: MT26418
@@ -77,10 +79,10 @@ graphene-98:
     version: X3440
   storage_devices:
     sda:
+      by_id: node-was-not-available-to-retrieve-this-value
       model: Hitachi HDS72103
       rev: A3EA
       size: 320072933376
       vendor: Hitachi
-      by_id: node-was-not-available-to-retrieve-this-value
   supported_job_types:
     virtual: ivt
diff --git a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.yaml b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.yaml
index fa33219ab7e..df0d5465bd8 100644
--- a/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.yaml
+++ b/input/grid5000/sites/nancy/clusters/graphene/nodes/graphene-99.yaml
@@ -52,17 +52,19 @@ graphene-99:
       vendor: Intel
     ib0:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b1
+      guid: '0x0002c903000b5eb1'
       interface: InfiniBand
       ip: 172.18.64.99
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b1
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 20000000000
       vendor: Mellanox Technologies
     ib1:
       driver: mlx4_core
-      guid: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b2
+      guid: '0x0002c903000b5eb2'
       interface: InfiniBand
+      mac: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:0b:5e:b2
       management: false
       model: MT26418 [ConnectX VPI PCIe 2.0 5GT/s - IB DDR / 10GigE]
       rate: 10000000000
-- 
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