diff --git a/data/grid5000/sites/nancy/clusters/gros/gros.json b/data/grid5000/sites/nancy/clusters/gros/gros.json
index 2c74815adbb4da11f528dedbec26bd05cb0470b9..9d61c5d16de3938ab4d8d10d273fde97c17aed5e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/gros.json
+++ b/data/grid5000/sites/nancy/clusters/gros/gros.json
@@ -1,6 +1,6 @@
 {
   "created_at": "Wed, 04 Sep 2019 00:00:00 GMT",
-  "kavlan": false,
+  "kavlan": true,
   "model": "Dell PowerEdge R640",
   "queues": [
     "admin",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
index 8326e25e9e953b63fdac63dc25b553f33e9fbb86..3e51f8292430db88b4b58e6d96637952d8ec3105 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BSCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.1",
+      "kavlan-11": "10.7.207.1",
+      "kavlan-12": "10.11.207.1",
+      "kavlan-13": "10.15.207.1",
+      "kavlan-14": "10.19.207.1",
+      "kavlan-16": "10.27.207.1",
+      "kavlan-18": "10.35.207.1",
+      "kavlan-2": "192.168.208.1",
+      "kavlan-20": "10.43.207.1",
+      "kavlan-21": "10.47.207.1",
+      "kavlan-3": "192.168.224.1",
+      "kavlan-4": "10.16.0.1",
+      "kavlan-5": "10.16.64.1",
+      "kavlan-6": "10.16.128.1",
+      "kavlan-7": "10.16.192.1",
+      "kavlan-8": "10.17.0.1",
+      "kavlan-9": "10.17.64.1"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.1",
+      "kavlan-11": "10.7.207.131",
+      "kavlan-12": "10.11.207.131",
+      "kavlan-13": "10.15.207.131",
+      "kavlan-14": "10.19.207.131",
+      "kavlan-16": "10.27.207.131",
+      "kavlan-18": "10.35.207.131",
+      "kavlan-2": "192.168.209.1",
+      "kavlan-20": "10.43.207.131",
+      "kavlan-21": "10.47.207.131",
+      "kavlan-3": "192.168.225.1",
+      "kavlan-4": "10.16.1.1",
+      "kavlan-5": "10.16.65.1",
+      "kavlan-6": "10.16.129.1",
+      "kavlan-7": "10.16.193.1",
+      "kavlan-8": "10.17.1.1",
+      "kavlan-9": "10.17.65.1"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.1",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:36",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:37",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
index 9a93cc0dfab271da8b2775f875e29a6eb5cac8ed..37d08f1b160d24ba3bcec69c84f88888e48565bf 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "6TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.10",
+      "kavlan-11": "10.7.207.10",
+      "kavlan-12": "10.11.207.10",
+      "kavlan-13": "10.15.207.10",
+      "kavlan-14": "10.19.207.10",
+      "kavlan-16": "10.27.207.10",
+      "kavlan-18": "10.35.207.10",
+      "kavlan-2": "192.168.208.10",
+      "kavlan-20": "10.43.207.10",
+      "kavlan-21": "10.47.207.10",
+      "kavlan-3": "192.168.224.10",
+      "kavlan-4": "10.16.0.10",
+      "kavlan-5": "10.16.64.10",
+      "kavlan-6": "10.16.128.10",
+      "kavlan-7": "10.16.192.10",
+      "kavlan-8": "10.17.0.10",
+      "kavlan-9": "10.17.64.10"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.10",
+      "kavlan-11": "10.7.207.140",
+      "kavlan-12": "10.11.207.140",
+      "kavlan-13": "10.15.207.140",
+      "kavlan-14": "10.19.207.140",
+      "kavlan-16": "10.27.207.140",
+      "kavlan-18": "10.35.207.140",
+      "kavlan-2": "192.168.209.10",
+      "kavlan-20": "10.43.207.140",
+      "kavlan-21": "10.47.207.140",
+      "kavlan-3": "192.168.225.10",
+      "kavlan-4": "10.16.1.10",
+      "kavlan-5": "10.16.65.10",
+      "kavlan-6": "10.16.129.10",
+      "kavlan-7": "10.16.193.10",
+      "kavlan-8": "10.17.1.10",
+      "kavlan-9": "10.17.65.10"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.10",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b6:c6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b6:c7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
index 2bcd9b557ccfa79c1f07a42a4f31f05ab163b9af..29ec22a3105483ddfab51cf233b40006c6242f81 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "4P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.100",
+      "kavlan-11": "10.7.207.100",
+      "kavlan-12": "10.11.207.100",
+      "kavlan-13": "10.15.207.100",
+      "kavlan-14": "10.19.207.100",
+      "kavlan-16": "10.27.207.100",
+      "kavlan-18": "10.35.207.100",
+      "kavlan-2": "192.168.208.100",
+      "kavlan-20": "10.43.207.100",
+      "kavlan-21": "10.47.207.100",
+      "kavlan-3": "192.168.224.100",
+      "kavlan-4": "10.16.0.100",
+      "kavlan-5": "10.16.64.100",
+      "kavlan-6": "10.16.128.100",
+      "kavlan-7": "10.16.192.100",
+      "kavlan-8": "10.17.0.100",
+      "kavlan-9": "10.17.64.100"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.100",
+      "kavlan-11": "10.7.207.230",
+      "kavlan-12": "10.11.207.230",
+      "kavlan-13": "10.15.207.230",
+      "kavlan-14": "10.19.207.230",
+      "kavlan-16": "10.27.207.230",
+      "kavlan-18": "10.35.207.230",
+      "kavlan-2": "192.168.209.100",
+      "kavlan-20": "10.43.207.230",
+      "kavlan-21": "10.47.207.230",
+      "kavlan-3": "192.168.225.100",
+      "kavlan-4": "10.16.1.100",
+      "kavlan-5": "10.16.65.100",
+      "kavlan-6": "10.16.129.100",
+      "kavlan-7": "10.16.193.100",
+      "kavlan-8": "10.17.1.100",
+      "kavlan-9": "10.17.65.100"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.100",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:0e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:0f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
index 705c879bcf80d67051f098d288e6f4be94cbedaa..651676d8c3300565d853cf52a68a70b8f81e1b0c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BP9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.101",
+      "kavlan-11": "10.7.207.101",
+      "kavlan-12": "10.11.207.101",
+      "kavlan-13": "10.15.207.101",
+      "kavlan-14": "10.19.207.101",
+      "kavlan-16": "10.27.207.101",
+      "kavlan-18": "10.35.207.101",
+      "kavlan-2": "192.168.208.101",
+      "kavlan-20": "10.43.207.101",
+      "kavlan-21": "10.47.207.101",
+      "kavlan-3": "192.168.224.101",
+      "kavlan-4": "10.16.0.101",
+      "kavlan-5": "10.16.64.101",
+      "kavlan-6": "10.16.128.101",
+      "kavlan-7": "10.16.192.101",
+      "kavlan-8": "10.17.0.101",
+      "kavlan-9": "10.17.64.101"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.101",
+      "kavlan-11": "10.7.207.231",
+      "kavlan-12": "10.11.207.231",
+      "kavlan-13": "10.15.207.231",
+      "kavlan-14": "10.19.207.231",
+      "kavlan-16": "10.27.207.231",
+      "kavlan-18": "10.35.207.231",
+      "kavlan-2": "192.168.209.101",
+      "kavlan-20": "10.43.207.231",
+      "kavlan-21": "10.47.207.231",
+      "kavlan-3": "192.168.225.101",
+      "kavlan-4": "10.16.1.101",
+      "kavlan-5": "10.16.65.101",
+      "kavlan-6": "10.16.129.101",
+      "kavlan-7": "10.16.193.101",
+      "kavlan-8": "10.17.1.101",
+      "kavlan-9": "10.17.65.101"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.101",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:76",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:77",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
index 657fea79bd47f8a2832151d53323a542233621b4..52cedbb3bfc9771872189f148b4acbaf6edbd311 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "FRCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.102",
+      "kavlan-11": "10.7.207.102",
+      "kavlan-12": "10.11.207.102",
+      "kavlan-13": "10.15.207.102",
+      "kavlan-14": "10.19.207.102",
+      "kavlan-16": "10.27.207.102",
+      "kavlan-18": "10.35.207.102",
+      "kavlan-2": "192.168.208.102",
+      "kavlan-20": "10.43.207.102",
+      "kavlan-21": "10.47.207.102",
+      "kavlan-3": "192.168.224.102",
+      "kavlan-4": "10.16.0.102",
+      "kavlan-5": "10.16.64.102",
+      "kavlan-6": "10.16.128.102",
+      "kavlan-7": "10.16.192.102",
+      "kavlan-8": "10.17.0.102",
+      "kavlan-9": "10.17.64.102"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.102",
+      "kavlan-11": "10.7.207.232",
+      "kavlan-12": "10.11.207.232",
+      "kavlan-13": "10.15.207.232",
+      "kavlan-14": "10.19.207.232",
+      "kavlan-16": "10.27.207.232",
+      "kavlan-18": "10.35.207.232",
+      "kavlan-2": "192.168.209.102",
+      "kavlan-20": "10.43.207.232",
+      "kavlan-21": "10.47.207.232",
+      "kavlan-3": "192.168.225.102",
+      "kavlan-4": "10.16.1.102",
+      "kavlan-5": "10.16.65.102",
+      "kavlan-6": "10.16.129.102",
+      "kavlan-7": "10.16.193.102",
+      "kavlan-8": "10.17.1.102",
+      "kavlan-9": "10.17.65.102"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.102",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:1e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:1f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
index 48d7402be8e9d3e2cee170a616d1952629b38f8c..231c9659d7e4f4000a3687784d9ffd67217553dc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JRCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.103",
+      "kavlan-11": "10.7.207.103",
+      "kavlan-12": "10.11.207.103",
+      "kavlan-13": "10.15.207.103",
+      "kavlan-14": "10.19.207.103",
+      "kavlan-16": "10.27.207.103",
+      "kavlan-18": "10.35.207.103",
+      "kavlan-2": "192.168.208.103",
+      "kavlan-20": "10.43.207.103",
+      "kavlan-21": "10.47.207.103",
+      "kavlan-3": "192.168.224.103",
+      "kavlan-4": "10.16.0.103",
+      "kavlan-5": "10.16.64.103",
+      "kavlan-6": "10.16.128.103",
+      "kavlan-7": "10.16.192.103",
+      "kavlan-8": "10.17.0.103",
+      "kavlan-9": "10.17.64.103"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.103",
+      "kavlan-11": "10.7.207.233",
+      "kavlan-12": "10.11.207.233",
+      "kavlan-13": "10.15.207.233",
+      "kavlan-14": "10.19.207.233",
+      "kavlan-16": "10.27.207.233",
+      "kavlan-18": "10.35.207.233",
+      "kavlan-2": "192.168.209.103",
+      "kavlan-20": "10.43.207.233",
+      "kavlan-21": "10.47.207.233",
+      "kavlan-3": "192.168.225.103",
+      "kavlan-4": "10.16.1.103",
+      "kavlan-5": "10.16.65.103",
+      "kavlan-6": "10.16.129.103",
+      "kavlan-7": "10.16.193.103",
+      "kavlan-8": "10.17.1.103",
+      "kavlan-9": "10.17.65.103"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.103",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b6:46",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b6:47",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
index 13984078271d1557f83f0c7cc74b4729a8e49f47..8b76527a1e218c4a4f91043f07d924cc5e133a37 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HRCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.104",
+      "kavlan-11": "10.7.207.104",
+      "kavlan-12": "10.11.207.104",
+      "kavlan-13": "10.15.207.104",
+      "kavlan-14": "10.19.207.104",
+      "kavlan-16": "10.27.207.104",
+      "kavlan-18": "10.35.207.104",
+      "kavlan-2": "192.168.208.104",
+      "kavlan-20": "10.43.207.104",
+      "kavlan-21": "10.47.207.104",
+      "kavlan-3": "192.168.224.104",
+      "kavlan-4": "10.16.0.104",
+      "kavlan-5": "10.16.64.104",
+      "kavlan-6": "10.16.128.104",
+      "kavlan-7": "10.16.192.104",
+      "kavlan-8": "10.17.0.104",
+      "kavlan-9": "10.17.64.104"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.104",
+      "kavlan-11": "10.7.207.234",
+      "kavlan-12": "10.11.207.234",
+      "kavlan-13": "10.15.207.234",
+      "kavlan-14": "10.19.207.234",
+      "kavlan-16": "10.27.207.234",
+      "kavlan-18": "10.35.207.234",
+      "kavlan-2": "192.168.209.104",
+      "kavlan-20": "10.43.207.234",
+      "kavlan-21": "10.47.207.234",
+      "kavlan-3": "192.168.225.104",
+      "kavlan-4": "10.16.1.104",
+      "kavlan-5": "10.16.65.104",
+      "kavlan-6": "10.16.129.104",
+      "kavlan-7": "10.16.193.104",
+      "kavlan-8": "10.17.1.104",
+      "kavlan-9": "10.17.65.104"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.104",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:16",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:17",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
index bd5fc2432cca06e4db61548e78e7e6c965177160..8a8c3eae5c2ceb96a7d90bf93dd1ec7e7aca9827 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "4Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.105",
+      "kavlan-11": "10.7.207.105",
+      "kavlan-12": "10.11.207.105",
+      "kavlan-13": "10.15.207.105",
+      "kavlan-14": "10.19.207.105",
+      "kavlan-16": "10.27.207.105",
+      "kavlan-18": "10.35.207.105",
+      "kavlan-2": "192.168.208.105",
+      "kavlan-20": "10.43.207.105",
+      "kavlan-21": "10.47.207.105",
+      "kavlan-3": "192.168.224.105",
+      "kavlan-4": "10.16.0.105",
+      "kavlan-5": "10.16.64.105",
+      "kavlan-6": "10.16.128.105",
+      "kavlan-7": "10.16.192.105",
+      "kavlan-8": "10.17.0.105",
+      "kavlan-9": "10.17.64.105"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.105",
+      "kavlan-11": "10.7.207.235",
+      "kavlan-12": "10.11.207.235",
+      "kavlan-13": "10.15.207.235",
+      "kavlan-14": "10.19.207.235",
+      "kavlan-16": "10.27.207.235",
+      "kavlan-18": "10.35.207.235",
+      "kavlan-2": "192.168.209.105",
+      "kavlan-20": "10.43.207.235",
+      "kavlan-21": "10.47.207.235",
+      "kavlan-3": "192.168.225.105",
+      "kavlan-4": "10.16.1.105",
+      "kavlan-5": "10.16.65.105",
+      "kavlan-6": "10.16.129.105",
+      "kavlan-7": "10.16.193.105",
+      "kavlan-8": "10.17.1.105",
+      "kavlan-9": "10.17.65.105"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.105",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:5e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:5f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
index 774877cd6e7afd3a805c12b87a33c0830dd35a2c..6a7abb0a17519ccb2002bc77598584d30d1037ff 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "3Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.106",
+      "kavlan-11": "10.7.207.106",
+      "kavlan-12": "10.11.207.106",
+      "kavlan-13": "10.15.207.106",
+      "kavlan-14": "10.19.207.106",
+      "kavlan-16": "10.27.207.106",
+      "kavlan-18": "10.35.207.106",
+      "kavlan-2": "192.168.208.106",
+      "kavlan-20": "10.43.207.106",
+      "kavlan-21": "10.47.207.106",
+      "kavlan-3": "192.168.224.106",
+      "kavlan-4": "10.16.0.106",
+      "kavlan-5": "10.16.64.106",
+      "kavlan-6": "10.16.128.106",
+      "kavlan-7": "10.16.192.106",
+      "kavlan-8": "10.17.0.106",
+      "kavlan-9": "10.17.64.106"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.106",
+      "kavlan-11": "10.7.207.236",
+      "kavlan-12": "10.11.207.236",
+      "kavlan-13": "10.15.207.236",
+      "kavlan-14": "10.19.207.236",
+      "kavlan-16": "10.27.207.236",
+      "kavlan-18": "10.35.207.236",
+      "kavlan-2": "192.168.209.106",
+      "kavlan-20": "10.43.207.236",
+      "kavlan-21": "10.47.207.236",
+      "kavlan-3": "192.168.225.106",
+      "kavlan-4": "10.16.1.106",
+      "kavlan-5": "10.16.65.106",
+      "kavlan-6": "10.16.129.106",
+      "kavlan-7": "10.16.193.106",
+      "kavlan-8": "10.17.1.106",
+      "kavlan-9": "10.17.65.106"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.106",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:be:e6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:be:e7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
index 69d4938aa5bf7c2aa1151813bbe7868f126d8cc8..a56753d96be36aece359d710c0dc5ba8a00050f2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "6P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.107",
+      "kavlan-11": "10.7.207.107",
+      "kavlan-12": "10.11.207.107",
+      "kavlan-13": "10.15.207.107",
+      "kavlan-14": "10.19.207.107",
+      "kavlan-16": "10.27.207.107",
+      "kavlan-18": "10.35.207.107",
+      "kavlan-2": "192.168.208.107",
+      "kavlan-20": "10.43.207.107",
+      "kavlan-21": "10.47.207.107",
+      "kavlan-3": "192.168.224.107",
+      "kavlan-4": "10.16.0.107",
+      "kavlan-5": "10.16.64.107",
+      "kavlan-6": "10.16.128.107",
+      "kavlan-7": "10.16.192.107",
+      "kavlan-8": "10.17.0.107",
+      "kavlan-9": "10.17.64.107"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.107",
+      "kavlan-11": "10.7.207.237",
+      "kavlan-12": "10.11.207.237",
+      "kavlan-13": "10.15.207.237",
+      "kavlan-14": "10.19.207.237",
+      "kavlan-16": "10.27.207.237",
+      "kavlan-18": "10.35.207.237",
+      "kavlan-2": "192.168.209.107",
+      "kavlan-20": "10.43.207.237",
+      "kavlan-21": "10.47.207.237",
+      "kavlan-3": "192.168.225.107",
+      "kavlan-4": "10.16.1.107",
+      "kavlan-5": "10.16.65.107",
+      "kavlan-6": "10.16.129.107",
+      "kavlan-7": "10.16.193.107",
+      "kavlan-8": "10.17.1.107",
+      "kavlan-9": "10.17.65.107"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.107",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9c:da",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9c:db",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
index e72ef96ac1a7826f124d60399e640c5d6f8e6196..92f078c82f975ec6f5b57ea95ada1b74945718a4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BRCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.108",
+      "kavlan-11": "10.7.207.108",
+      "kavlan-12": "10.11.207.108",
+      "kavlan-13": "10.15.207.108",
+      "kavlan-14": "10.19.207.108",
+      "kavlan-16": "10.27.207.108",
+      "kavlan-18": "10.35.207.108",
+      "kavlan-2": "192.168.208.108",
+      "kavlan-20": "10.43.207.108",
+      "kavlan-21": "10.47.207.108",
+      "kavlan-3": "192.168.224.108",
+      "kavlan-4": "10.16.0.108",
+      "kavlan-5": "10.16.64.108",
+      "kavlan-6": "10.16.128.108",
+      "kavlan-7": "10.16.192.108",
+      "kavlan-8": "10.17.0.108",
+      "kavlan-9": "10.17.64.108"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.108",
+      "kavlan-11": "10.7.207.238",
+      "kavlan-12": "10.11.207.238",
+      "kavlan-13": "10.15.207.238",
+      "kavlan-14": "10.19.207.238",
+      "kavlan-16": "10.27.207.238",
+      "kavlan-18": "10.35.207.238",
+      "kavlan-2": "192.168.209.108",
+      "kavlan-20": "10.43.207.238",
+      "kavlan-21": "10.47.207.238",
+      "kavlan-3": "192.168.225.108",
+      "kavlan-4": "10.16.1.108",
+      "kavlan-5": "10.16.65.108",
+      "kavlan-6": "10.16.129.108",
+      "kavlan-7": "10.16.193.108",
+      "kavlan-8": "10.17.1.108",
+      "kavlan-9": "10.17.65.108"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.108",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:be:c6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:be:c7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
index 423ddb699a8cf7c43c0a5c6e673e5def3e3f6df1..298b051c08c8a1df11d4c1118b902f183d78e151 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "4WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.109",
+      "kavlan-11": "10.7.207.109",
+      "kavlan-12": "10.11.207.109",
+      "kavlan-13": "10.15.207.109",
+      "kavlan-14": "10.19.207.109",
+      "kavlan-16": "10.27.207.109",
+      "kavlan-18": "10.35.207.109",
+      "kavlan-2": "192.168.208.109",
+      "kavlan-20": "10.43.207.109",
+      "kavlan-21": "10.47.207.109",
+      "kavlan-3": "192.168.224.109",
+      "kavlan-4": "10.16.0.109",
+      "kavlan-5": "10.16.64.109",
+      "kavlan-6": "10.16.128.109",
+      "kavlan-7": "10.16.192.109",
+      "kavlan-8": "10.17.0.109",
+      "kavlan-9": "10.17.64.109"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.109",
+      "kavlan-11": "10.7.207.239",
+      "kavlan-12": "10.11.207.239",
+      "kavlan-13": "10.15.207.239",
+      "kavlan-14": "10.19.207.239",
+      "kavlan-16": "10.27.207.239",
+      "kavlan-18": "10.35.207.239",
+      "kavlan-2": "192.168.209.109",
+      "kavlan-20": "10.43.207.239",
+      "kavlan-21": "10.47.207.239",
+      "kavlan-3": "192.168.225.109",
+      "kavlan-4": "10.16.1.109",
+      "kavlan-5": "10.16.65.109",
+      "kavlan-6": "10.16.129.109",
+      "kavlan-7": "10.16.193.109",
+      "kavlan-8": "10.17.1.109",
+      "kavlan-9": "10.17.65.109"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.109",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:72",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:73",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
index e6a7c55894b329ff72a0072a9910044f7570ca54..210f653ea5ee4f62244c2efebc0e389d5627d91e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GSCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.11",
+      "kavlan-11": "10.7.207.11",
+      "kavlan-12": "10.11.207.11",
+      "kavlan-13": "10.15.207.11",
+      "kavlan-14": "10.19.207.11",
+      "kavlan-16": "10.27.207.11",
+      "kavlan-18": "10.35.207.11",
+      "kavlan-2": "192.168.208.11",
+      "kavlan-20": "10.43.207.11",
+      "kavlan-21": "10.47.207.11",
+      "kavlan-3": "192.168.224.11",
+      "kavlan-4": "10.16.0.11",
+      "kavlan-5": "10.16.64.11",
+      "kavlan-6": "10.16.128.11",
+      "kavlan-7": "10.16.192.11",
+      "kavlan-8": "10.17.0.11",
+      "kavlan-9": "10.17.64.11"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.11",
+      "kavlan-11": "10.7.207.141",
+      "kavlan-12": "10.11.207.141",
+      "kavlan-13": "10.15.207.141",
+      "kavlan-14": "10.19.207.141",
+      "kavlan-16": "10.27.207.141",
+      "kavlan-18": "10.35.207.141",
+      "kavlan-2": "192.168.209.11",
+      "kavlan-20": "10.43.207.141",
+      "kavlan-21": "10.47.207.141",
+      "kavlan-3": "192.168.225.11",
+      "kavlan-4": "10.16.1.11",
+      "kavlan-5": "10.16.65.11",
+      "kavlan-6": "10.16.129.11",
+      "kavlan-7": "10.16.193.11",
+      "kavlan-8": "10.17.1.11",
+      "kavlan-9": "10.17.65.11"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.11",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:ea",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:eb",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
index a9a7c5126dde87967bbcd8adaeeb97353d6a410f..691e79e793234fe4f731683a9a3a300aaeaa7585 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DVCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.110",
+      "kavlan-11": "10.7.207.110",
+      "kavlan-12": "10.11.207.110",
+      "kavlan-13": "10.15.207.110",
+      "kavlan-14": "10.19.207.110",
+      "kavlan-16": "10.27.207.110",
+      "kavlan-18": "10.35.207.110",
+      "kavlan-2": "192.168.208.110",
+      "kavlan-20": "10.43.207.110",
+      "kavlan-21": "10.47.207.110",
+      "kavlan-3": "192.168.224.110",
+      "kavlan-4": "10.16.0.110",
+      "kavlan-5": "10.16.64.110",
+      "kavlan-6": "10.16.128.110",
+      "kavlan-7": "10.16.192.110",
+      "kavlan-8": "10.17.0.110",
+      "kavlan-9": "10.17.64.110"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.110",
+      "kavlan-11": "10.7.207.240",
+      "kavlan-12": "10.11.207.240",
+      "kavlan-13": "10.15.207.240",
+      "kavlan-14": "10.19.207.240",
+      "kavlan-16": "10.27.207.240",
+      "kavlan-18": "10.35.207.240",
+      "kavlan-2": "192.168.209.110",
+      "kavlan-20": "10.43.207.240",
+      "kavlan-21": "10.47.207.240",
+      "kavlan-3": "192.168.225.110",
+      "kavlan-4": "10.16.1.110",
+      "kavlan-5": "10.16.65.110",
+      "kavlan-6": "10.16.129.110",
+      "kavlan-7": "10.16.193.110",
+      "kavlan-8": "10.17.1.110",
+      "kavlan-9": "10.17.65.110"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.110",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:ae",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:af",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
index e64ba638c1bdb97fa44f3fed2a9e23491d725880..df682fb3b0010dc05f4a1f27a5502451f4a6c7cb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "FVCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.111",
+      "kavlan-11": "10.7.207.111",
+      "kavlan-12": "10.11.207.111",
+      "kavlan-13": "10.15.207.111",
+      "kavlan-14": "10.19.207.111",
+      "kavlan-16": "10.27.207.111",
+      "kavlan-18": "10.35.207.111",
+      "kavlan-2": "192.168.208.111",
+      "kavlan-20": "10.43.207.111",
+      "kavlan-21": "10.47.207.111",
+      "kavlan-3": "192.168.224.111",
+      "kavlan-4": "10.16.0.111",
+      "kavlan-5": "10.16.64.111",
+      "kavlan-6": "10.16.128.111",
+      "kavlan-7": "10.16.192.111",
+      "kavlan-8": "10.17.0.111",
+      "kavlan-9": "10.17.64.111"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.111",
+      "kavlan-11": "10.7.207.241",
+      "kavlan-12": "10.11.207.241",
+      "kavlan-13": "10.15.207.241",
+      "kavlan-14": "10.19.207.241",
+      "kavlan-16": "10.27.207.241",
+      "kavlan-18": "10.35.207.241",
+      "kavlan-2": "192.168.209.111",
+      "kavlan-20": "10.43.207.241",
+      "kavlan-21": "10.47.207.241",
+      "kavlan-3": "192.168.225.111",
+      "kavlan-4": "10.16.1.111",
+      "kavlan-5": "10.16.65.111",
+      "kavlan-6": "10.16.129.111",
+      "kavlan-7": "10.16.193.111",
+      "kavlan-8": "10.17.1.111",
+      "kavlan-9": "10.17.65.111"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.111",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:68:f2",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:68:f3",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
index b721f3ac1b20b748aa292e1d9cd26ea70613ad22..c3e5e805217e88fa7e88a2bc4c996eb96497b1ba 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GVCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.112",
+      "kavlan-11": "10.7.207.112",
+      "kavlan-12": "10.11.207.112",
+      "kavlan-13": "10.15.207.112",
+      "kavlan-14": "10.19.207.112",
+      "kavlan-16": "10.27.207.112",
+      "kavlan-18": "10.35.207.112",
+      "kavlan-2": "192.168.208.112",
+      "kavlan-20": "10.43.207.112",
+      "kavlan-21": "10.47.207.112",
+      "kavlan-3": "192.168.224.112",
+      "kavlan-4": "10.16.0.112",
+      "kavlan-5": "10.16.64.112",
+      "kavlan-6": "10.16.128.112",
+      "kavlan-7": "10.16.192.112",
+      "kavlan-8": "10.17.0.112",
+      "kavlan-9": "10.17.64.112"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.112",
+      "kavlan-11": "10.7.207.242",
+      "kavlan-12": "10.11.207.242",
+      "kavlan-13": "10.15.207.242",
+      "kavlan-14": "10.19.207.242",
+      "kavlan-16": "10.27.207.242",
+      "kavlan-18": "10.35.207.242",
+      "kavlan-2": "192.168.209.112",
+      "kavlan-20": "10.43.207.242",
+      "kavlan-21": "10.47.207.242",
+      "kavlan-3": "192.168.225.112",
+      "kavlan-4": "10.16.1.112",
+      "kavlan-5": "10.16.65.112",
+      "kavlan-6": "10.16.129.112",
+      "kavlan-7": "10.16.193.112",
+      "kavlan-8": "10.17.1.112",
+      "kavlan-9": "10.17.65.112"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.112",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a3:2e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a3:2f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
index 7cd72ad188fe3fea5433a6ea0adad555be7ce0f9..feafe25ecf5577fdeeb08fe026e69bcad538849a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "3WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.113",
+      "kavlan-11": "10.7.207.113",
+      "kavlan-12": "10.11.207.113",
+      "kavlan-13": "10.15.207.113",
+      "kavlan-14": "10.19.207.113",
+      "kavlan-16": "10.27.207.113",
+      "kavlan-18": "10.35.207.113",
+      "kavlan-2": "192.168.208.113",
+      "kavlan-20": "10.43.207.113",
+      "kavlan-21": "10.47.207.113",
+      "kavlan-3": "192.168.224.113",
+      "kavlan-4": "10.16.0.113",
+      "kavlan-5": "10.16.64.113",
+      "kavlan-6": "10.16.128.113",
+      "kavlan-7": "10.16.192.113",
+      "kavlan-8": "10.17.0.113",
+      "kavlan-9": "10.17.64.113"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.113",
+      "kavlan-11": "10.7.207.243",
+      "kavlan-12": "10.11.207.243",
+      "kavlan-13": "10.15.207.243",
+      "kavlan-14": "10.19.207.243",
+      "kavlan-16": "10.27.207.243",
+      "kavlan-18": "10.35.207.243",
+      "kavlan-2": "192.168.209.113",
+      "kavlan-20": "10.43.207.243",
+      "kavlan-21": "10.47.207.243",
+      "kavlan-3": "192.168.225.113",
+      "kavlan-4": "10.16.1.113",
+      "kavlan-5": "10.16.65.113",
+      "kavlan-6": "10.16.129.113",
+      "kavlan-7": "10.16.193.113",
+      "kavlan-8": "10.17.1.113",
+      "kavlan-9": "10.17.65.113"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.113",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:12",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:13",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
index b690a693f8149d89b32db58408742ac149e03a64..64d9a809d12d8745686401c308db984226196e57 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.114",
+      "kavlan-11": "10.7.207.114",
+      "kavlan-12": "10.11.207.114",
+      "kavlan-13": "10.15.207.114",
+      "kavlan-14": "10.19.207.114",
+      "kavlan-16": "10.27.207.114",
+      "kavlan-18": "10.35.207.114",
+      "kavlan-2": "192.168.208.114",
+      "kavlan-20": "10.43.207.114",
+      "kavlan-21": "10.47.207.114",
+      "kavlan-3": "192.168.224.114",
+      "kavlan-4": "10.16.0.114",
+      "kavlan-5": "10.16.64.114",
+      "kavlan-6": "10.16.128.114",
+      "kavlan-7": "10.16.192.114",
+      "kavlan-8": "10.17.0.114",
+      "kavlan-9": "10.17.64.114"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.114",
+      "kavlan-11": "10.7.207.244",
+      "kavlan-12": "10.11.207.244",
+      "kavlan-13": "10.15.207.244",
+      "kavlan-14": "10.19.207.244",
+      "kavlan-16": "10.27.207.244",
+      "kavlan-18": "10.35.207.244",
+      "kavlan-2": "192.168.209.114",
+      "kavlan-20": "10.43.207.244",
+      "kavlan-21": "10.47.207.244",
+      "kavlan-3": "192.168.225.114",
+      "kavlan-4": "10.16.1.114",
+      "kavlan-5": "10.16.65.114",
+      "kavlan-6": "10.16.129.114",
+      "kavlan-7": "10.16.193.114",
+      "kavlan-8": "10.17.1.114",
+      "kavlan-9": "10.17.65.114"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.114",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:0a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:0b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
index 6ed8d95dae98afa3690d0663ecf15f9fdce2630f..468e30655368951a7c18fe3c1a182b3203b0d3d4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "6XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.115",
+      "kavlan-11": "10.7.207.115",
+      "kavlan-12": "10.11.207.115",
+      "kavlan-13": "10.15.207.115",
+      "kavlan-14": "10.19.207.115",
+      "kavlan-16": "10.27.207.115",
+      "kavlan-18": "10.35.207.115",
+      "kavlan-2": "192.168.208.115",
+      "kavlan-20": "10.43.207.115",
+      "kavlan-21": "10.47.207.115",
+      "kavlan-3": "192.168.224.115",
+      "kavlan-4": "10.16.0.115",
+      "kavlan-5": "10.16.64.115",
+      "kavlan-6": "10.16.128.115",
+      "kavlan-7": "10.16.192.115",
+      "kavlan-8": "10.17.0.115",
+      "kavlan-9": "10.17.64.115"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.115",
+      "kavlan-11": "10.7.207.245",
+      "kavlan-12": "10.11.207.245",
+      "kavlan-13": "10.15.207.245",
+      "kavlan-14": "10.19.207.245",
+      "kavlan-16": "10.27.207.245",
+      "kavlan-18": "10.35.207.245",
+      "kavlan-2": "192.168.209.115",
+      "kavlan-20": "10.43.207.245",
+      "kavlan-21": "10.47.207.245",
+      "kavlan-3": "192.168.225.115",
+      "kavlan-4": "10.16.1.115",
+      "kavlan-5": "10.16.65.115",
+      "kavlan-6": "10.16.129.115",
+      "kavlan-7": "10.16.193.115",
+      "kavlan-8": "10.17.1.115",
+      "kavlan-9": "10.17.65.115"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.115",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d2:de",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d2:df",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
index 27368e7e9f149ce335d26c856a4d2788677f9c87..ec7d7274428864ee9aa18ac387aebccb5ef450e9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.116",
+      "kavlan-11": "10.7.207.116",
+      "kavlan-12": "10.11.207.116",
+      "kavlan-13": "10.15.207.116",
+      "kavlan-14": "10.19.207.116",
+      "kavlan-16": "10.27.207.116",
+      "kavlan-18": "10.35.207.116",
+      "kavlan-2": "192.168.208.116",
+      "kavlan-20": "10.43.207.116",
+      "kavlan-21": "10.47.207.116",
+      "kavlan-3": "192.168.224.116",
+      "kavlan-4": "10.16.0.116",
+      "kavlan-5": "10.16.64.116",
+      "kavlan-6": "10.16.128.116",
+      "kavlan-7": "10.16.192.116",
+      "kavlan-8": "10.17.0.116",
+      "kavlan-9": "10.17.64.116"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.116",
+      "kavlan-11": "10.7.207.246",
+      "kavlan-12": "10.11.207.246",
+      "kavlan-13": "10.15.207.246",
+      "kavlan-14": "10.19.207.246",
+      "kavlan-16": "10.27.207.246",
+      "kavlan-18": "10.35.207.246",
+      "kavlan-2": "192.168.209.116",
+      "kavlan-20": "10.43.207.246",
+      "kavlan-21": "10.47.207.246",
+      "kavlan-3": "192.168.225.116",
+      "kavlan-4": "10.16.1.116",
+      "kavlan-5": "10.16.65.116",
+      "kavlan-6": "10.16.129.116",
+      "kavlan-7": "10.16.193.116",
+      "kavlan-8": "10.17.1.116",
+      "kavlan-9": "10.17.65.116"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.116",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ba:e6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ba:e7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
index ce479e0ac6c350f961146e03009a32e4e51171cd..c54ed0457849aeb4985ff7fc1e085e2532dbeb73 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.117",
+      "kavlan-11": "10.7.207.117",
+      "kavlan-12": "10.11.207.117",
+      "kavlan-13": "10.15.207.117",
+      "kavlan-14": "10.19.207.117",
+      "kavlan-16": "10.27.207.117",
+      "kavlan-18": "10.35.207.117",
+      "kavlan-2": "192.168.208.117",
+      "kavlan-20": "10.43.207.117",
+      "kavlan-21": "10.47.207.117",
+      "kavlan-3": "192.168.224.117",
+      "kavlan-4": "10.16.0.117",
+      "kavlan-5": "10.16.64.117",
+      "kavlan-6": "10.16.128.117",
+      "kavlan-7": "10.16.192.117",
+      "kavlan-8": "10.17.0.117",
+      "kavlan-9": "10.17.64.117"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.117",
+      "kavlan-11": "10.7.207.247",
+      "kavlan-12": "10.11.207.247",
+      "kavlan-13": "10.15.207.247",
+      "kavlan-14": "10.19.207.247",
+      "kavlan-16": "10.27.207.247",
+      "kavlan-18": "10.35.207.247",
+      "kavlan-2": "192.168.209.117",
+      "kavlan-20": "10.43.207.247",
+      "kavlan-21": "10.47.207.247",
+      "kavlan-3": "192.168.225.117",
+      "kavlan-4": "10.16.1.117",
+      "kavlan-5": "10.16.65.117",
+      "kavlan-6": "10.16.129.117",
+      "kavlan-7": "10.16.193.117",
+      "kavlan-8": "10.17.1.117",
+      "kavlan-9": "10.17.65.117"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.117",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:e6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:e7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
index e06c45b82505ab51cb9fea93e858ac74572d2101..04559b0f3895ed799ab206c705f8844abcc63bfc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DWCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.118",
+      "kavlan-11": "10.7.207.118",
+      "kavlan-12": "10.11.207.118",
+      "kavlan-13": "10.15.207.118",
+      "kavlan-14": "10.19.207.118",
+      "kavlan-16": "10.27.207.118",
+      "kavlan-18": "10.35.207.118",
+      "kavlan-2": "192.168.208.118",
+      "kavlan-20": "10.43.207.118",
+      "kavlan-21": "10.47.207.118",
+      "kavlan-3": "192.168.224.118",
+      "kavlan-4": "10.16.0.118",
+      "kavlan-5": "10.16.64.118",
+      "kavlan-6": "10.16.128.118",
+      "kavlan-7": "10.16.192.118",
+      "kavlan-8": "10.17.0.118",
+      "kavlan-9": "10.17.64.118"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.118",
+      "kavlan-11": "10.7.207.248",
+      "kavlan-12": "10.11.207.248",
+      "kavlan-13": "10.15.207.248",
+      "kavlan-14": "10.19.207.248",
+      "kavlan-16": "10.27.207.248",
+      "kavlan-18": "10.35.207.248",
+      "kavlan-2": "192.168.209.118",
+      "kavlan-20": "10.43.207.248",
+      "kavlan-21": "10.47.207.248",
+      "kavlan-3": "192.168.225.118",
+      "kavlan-4": "10.16.1.118",
+      "kavlan-5": "10.16.65.118",
+      "kavlan-6": "10.16.129.118",
+      "kavlan-7": "10.16.193.118",
+      "kavlan-8": "10.17.1.118",
+      "kavlan-9": "10.17.65.118"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.118",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:92",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:93",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
index 80e9ef8ff6ace9b98167ff99c8753f6e3a73988d..1acb1764f40635bc3ea86fe2902d71f3c7ffc356 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CWCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.119",
+      "kavlan-11": "10.7.207.119",
+      "kavlan-12": "10.11.207.119",
+      "kavlan-13": "10.15.207.119",
+      "kavlan-14": "10.19.207.119",
+      "kavlan-16": "10.27.207.119",
+      "kavlan-18": "10.35.207.119",
+      "kavlan-2": "192.168.208.119",
+      "kavlan-20": "10.43.207.119",
+      "kavlan-21": "10.47.207.119",
+      "kavlan-3": "192.168.224.119",
+      "kavlan-4": "10.16.0.119",
+      "kavlan-5": "10.16.64.119",
+      "kavlan-6": "10.16.128.119",
+      "kavlan-7": "10.16.192.119",
+      "kavlan-8": "10.17.0.119",
+      "kavlan-9": "10.17.64.119"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.119",
+      "kavlan-11": "10.7.207.249",
+      "kavlan-12": "10.11.207.249",
+      "kavlan-13": "10.15.207.249",
+      "kavlan-14": "10.19.207.249",
+      "kavlan-16": "10.27.207.249",
+      "kavlan-18": "10.35.207.249",
+      "kavlan-2": "192.168.209.119",
+      "kavlan-20": "10.43.207.249",
+      "kavlan-21": "10.47.207.249",
+      "kavlan-3": "192.168.225.119",
+      "kavlan-4": "10.16.1.119",
+      "kavlan-5": "10.16.65.119",
+      "kavlan-6": "10.16.129.119",
+      "kavlan-7": "10.16.193.119",
+      "kavlan-8": "10.17.1.119",
+      "kavlan-9": "10.17.65.119"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.119",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:8a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:8b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
index bf6ed1201e742b6db96c7c3568f8901b6781b75a..8831774bc36b338233d68dcff98b74423d0d61bf 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.12",
+      "kavlan-11": "10.7.207.12",
+      "kavlan-12": "10.11.207.12",
+      "kavlan-13": "10.15.207.12",
+      "kavlan-14": "10.19.207.12",
+      "kavlan-16": "10.27.207.12",
+      "kavlan-18": "10.35.207.12",
+      "kavlan-2": "192.168.208.12",
+      "kavlan-20": "10.43.207.12",
+      "kavlan-21": "10.47.207.12",
+      "kavlan-3": "192.168.224.12",
+      "kavlan-4": "10.16.0.12",
+      "kavlan-5": "10.16.64.12",
+      "kavlan-6": "10.16.128.12",
+      "kavlan-7": "10.16.192.12",
+      "kavlan-8": "10.17.0.12",
+      "kavlan-9": "10.17.64.12"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.12",
+      "kavlan-11": "10.7.207.142",
+      "kavlan-12": "10.11.207.142",
+      "kavlan-13": "10.15.207.142",
+      "kavlan-14": "10.19.207.142",
+      "kavlan-16": "10.27.207.142",
+      "kavlan-18": "10.35.207.142",
+      "kavlan-2": "192.168.209.12",
+      "kavlan-20": "10.43.207.142",
+      "kavlan-21": "10.47.207.142",
+      "kavlan-3": "192.168.225.12",
+      "kavlan-4": "10.16.1.12",
+      "kavlan-5": "10.16.65.12",
+      "kavlan-6": "10.16.129.12",
+      "kavlan-7": "10.16.193.12",
+      "kavlan-8": "10.17.1.12",
+      "kavlan-9": "10.17.65.12"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.12",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:26",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:27",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
index e48c5f58f8446d671d8527a9360524f51ec4e818..2ebf5faafd37a623c0c67cc5152555cb3fd53f9c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HWCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.120",
+      "kavlan-11": "10.7.207.120",
+      "kavlan-12": "10.11.207.120",
+      "kavlan-13": "10.15.207.120",
+      "kavlan-14": "10.19.207.120",
+      "kavlan-16": "10.27.207.120",
+      "kavlan-18": "10.35.207.120",
+      "kavlan-2": "192.168.208.120",
+      "kavlan-20": "10.43.207.120",
+      "kavlan-21": "10.47.207.120",
+      "kavlan-3": "192.168.224.120",
+      "kavlan-4": "10.16.0.120",
+      "kavlan-5": "10.16.64.120",
+      "kavlan-6": "10.16.128.120",
+      "kavlan-7": "10.16.192.120",
+      "kavlan-8": "10.17.0.120",
+      "kavlan-9": "10.17.64.120"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.120",
+      "kavlan-11": "10.7.207.250",
+      "kavlan-12": "10.11.207.250",
+      "kavlan-13": "10.15.207.250",
+      "kavlan-14": "10.19.207.250",
+      "kavlan-16": "10.27.207.250",
+      "kavlan-18": "10.35.207.250",
+      "kavlan-2": "192.168.209.120",
+      "kavlan-20": "10.43.207.250",
+      "kavlan-21": "10.47.207.250",
+      "kavlan-3": "192.168.225.120",
+      "kavlan-4": "10.16.1.120",
+      "kavlan-5": "10.16.65.120",
+      "kavlan-6": "10.16.129.120",
+      "kavlan-7": "10.16.193.120",
+      "kavlan-8": "10.17.1.120",
+      "kavlan-9": "10.17.65.120"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.120",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:b6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:b7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
index 4d81ca04fa46d7b334d1c8691d3fa91001aa4213..f633a1adc48d6323f05004c105f71eba12f9ce6e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.121",
+      "kavlan-11": "10.7.207.121",
+      "kavlan-12": "10.11.207.121",
+      "kavlan-13": "10.15.207.121",
+      "kavlan-14": "10.19.207.121",
+      "kavlan-16": "10.27.207.121",
+      "kavlan-18": "10.35.207.121",
+      "kavlan-2": "192.168.208.121",
+      "kavlan-20": "10.43.207.121",
+      "kavlan-21": "10.47.207.121",
+      "kavlan-3": "192.168.224.121",
+      "kavlan-4": "10.16.0.121",
+      "kavlan-5": "10.16.64.121",
+      "kavlan-6": "10.16.128.121",
+      "kavlan-7": "10.16.192.121",
+      "kavlan-8": "10.17.0.121",
+      "kavlan-9": "10.17.64.121"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.121",
+      "kavlan-11": "10.7.207.251",
+      "kavlan-12": "10.11.207.251",
+      "kavlan-13": "10.15.207.251",
+      "kavlan-14": "10.19.207.251",
+      "kavlan-16": "10.27.207.251",
+      "kavlan-18": "10.35.207.251",
+      "kavlan-2": "192.168.209.121",
+      "kavlan-20": "10.43.207.251",
+      "kavlan-21": "10.47.207.251",
+      "kavlan-3": "192.168.225.121",
+      "kavlan-4": "10.16.1.121",
+      "kavlan-5": "10.16.65.121",
+      "kavlan-6": "10.16.129.121",
+      "kavlan-7": "10.16.193.121",
+      "kavlan-8": "10.17.1.121",
+      "kavlan-9": "10.17.65.121"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.121",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d2:76",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d2:77",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
index 0b3d8b6890d4966d41658fdea529409728b4b8ec..287a8d9a49b8b4c88ae4daa32cda96bb2cf8100f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BWCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.122",
+      "kavlan-11": "10.7.207.122",
+      "kavlan-12": "10.11.207.122",
+      "kavlan-13": "10.15.207.122",
+      "kavlan-14": "10.19.207.122",
+      "kavlan-16": "10.27.207.122",
+      "kavlan-18": "10.35.207.122",
+      "kavlan-2": "192.168.208.122",
+      "kavlan-20": "10.43.207.122",
+      "kavlan-21": "10.47.207.122",
+      "kavlan-3": "192.168.224.122",
+      "kavlan-4": "10.16.0.122",
+      "kavlan-5": "10.16.64.122",
+      "kavlan-6": "10.16.128.122",
+      "kavlan-7": "10.16.192.122",
+      "kavlan-8": "10.17.0.122",
+      "kavlan-9": "10.17.64.122"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.122",
+      "kavlan-11": "10.7.207.252",
+      "kavlan-12": "10.11.207.252",
+      "kavlan-13": "10.15.207.252",
+      "kavlan-14": "10.19.207.252",
+      "kavlan-16": "10.27.207.252",
+      "kavlan-18": "10.35.207.252",
+      "kavlan-2": "192.168.209.122",
+      "kavlan-20": "10.43.207.252",
+      "kavlan-21": "10.47.207.252",
+      "kavlan-3": "192.168.225.122",
+      "kavlan-4": "10.16.1.122",
+      "kavlan-5": "10.16.65.122",
+      "kavlan-6": "10.16.129.122",
+      "kavlan-7": "10.16.193.122",
+      "kavlan-8": "10.17.1.122",
+      "kavlan-9": "10.17.65.122"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.122",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:da",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:db",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
index db811b6c2274e81caba25563fe1b817ed1f38cb3..4a1bd4bebd0eaa7d756319872b1480f36bb55f4f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "FWCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.123",
+      "kavlan-11": "10.7.207.123",
+      "kavlan-12": "10.11.207.123",
+      "kavlan-13": "10.15.207.123",
+      "kavlan-14": "10.19.207.123",
+      "kavlan-16": "10.27.207.123",
+      "kavlan-18": "10.35.207.123",
+      "kavlan-2": "192.168.208.123",
+      "kavlan-20": "10.43.207.123",
+      "kavlan-21": "10.47.207.123",
+      "kavlan-3": "192.168.224.123",
+      "kavlan-4": "10.16.0.123",
+      "kavlan-5": "10.16.64.123",
+      "kavlan-6": "10.16.128.123",
+      "kavlan-7": "10.16.192.123",
+      "kavlan-8": "10.17.0.123",
+      "kavlan-9": "10.17.64.123"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.123",
+      "kavlan-11": "10.7.207.253",
+      "kavlan-12": "10.11.207.253",
+      "kavlan-13": "10.15.207.253",
+      "kavlan-14": "10.19.207.253",
+      "kavlan-16": "10.27.207.253",
+      "kavlan-18": "10.35.207.253",
+      "kavlan-2": "192.168.209.123",
+      "kavlan-20": "10.43.207.253",
+      "kavlan-21": "10.47.207.253",
+      "kavlan-3": "192.168.225.123",
+      "kavlan-4": "10.16.1.123",
+      "kavlan-5": "10.16.65.123",
+      "kavlan-6": "10.16.129.123",
+      "kavlan-7": "10.16.193.123",
+      "kavlan-8": "10.17.1.123",
+      "kavlan-9": "10.17.65.123"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.123",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:be",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:bf",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
index 9c67688b3fd3b0bb00257aa7ba36974cbee1a450..00eb8c82ef18d0800bb5e8862eb48834970569ed 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.124",
+      "kavlan-11": "10.7.207.124",
+      "kavlan-12": "10.11.207.124",
+      "kavlan-13": "10.15.207.124",
+      "kavlan-14": "10.19.207.124",
+      "kavlan-16": "10.27.207.124",
+      "kavlan-18": "10.35.207.124",
+      "kavlan-2": "192.168.208.124",
+      "kavlan-20": "10.43.207.124",
+      "kavlan-21": "10.47.207.124",
+      "kavlan-3": "192.168.224.124",
+      "kavlan-4": "10.16.0.124",
+      "kavlan-5": "10.16.64.124",
+      "kavlan-6": "10.16.128.124",
+      "kavlan-7": "10.16.192.124",
+      "kavlan-8": "10.17.0.124",
+      "kavlan-9": "10.17.64.124"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.124",
+      "kavlan-11": "10.7.207.254",
+      "kavlan-12": "10.11.207.254",
+      "kavlan-13": "10.15.207.254",
+      "kavlan-14": "10.19.207.254",
+      "kavlan-16": "10.27.207.254",
+      "kavlan-18": "10.35.207.254",
+      "kavlan-2": "192.168.209.124",
+      "kavlan-20": "10.43.207.254",
+      "kavlan-21": "10.47.207.254",
+      "kavlan-3": "192.168.225.124",
+      "kavlan-4": "10.16.1.124",
+      "kavlan-5": "10.16.65.124",
+      "kavlan-6": "10.16.129.124",
+      "kavlan-7": "10.16.193.124",
+      "kavlan-8": "10.17.1.124",
+      "kavlan-9": "10.17.65.124"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.124",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:99:7a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:99:7b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
index 39f258f35e912fcdd15cce074efcdbe54fee4257..86ecd87309e22f35ae5ec7dcfa5e2e967eb7d966 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JSCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.13",
+      "kavlan-11": "10.7.207.13",
+      "kavlan-12": "10.11.207.13",
+      "kavlan-13": "10.15.207.13",
+      "kavlan-14": "10.19.207.13",
+      "kavlan-16": "10.27.207.13",
+      "kavlan-18": "10.35.207.13",
+      "kavlan-2": "192.168.208.13",
+      "kavlan-20": "10.43.207.13",
+      "kavlan-21": "10.47.207.13",
+      "kavlan-3": "192.168.224.13",
+      "kavlan-4": "10.16.0.13",
+      "kavlan-5": "10.16.64.13",
+      "kavlan-6": "10.16.128.13",
+      "kavlan-7": "10.16.192.13",
+      "kavlan-8": "10.17.0.13",
+      "kavlan-9": "10.17.64.13"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.13",
+      "kavlan-11": "10.7.207.143",
+      "kavlan-12": "10.11.207.143",
+      "kavlan-13": "10.15.207.143",
+      "kavlan-14": "10.19.207.143",
+      "kavlan-16": "10.27.207.143",
+      "kavlan-18": "10.35.207.143",
+      "kavlan-2": "192.168.209.13",
+      "kavlan-20": "10.43.207.143",
+      "kavlan-21": "10.47.207.143",
+      "kavlan-3": "192.168.225.13",
+      "kavlan-4": "10.16.1.13",
+      "kavlan-5": "10.16.65.13",
+      "kavlan-6": "10.16.129.13",
+      "kavlan-7": "10.16.193.13",
+      "kavlan-8": "10.17.1.13",
+      "kavlan-9": "10.17.65.13"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.13",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:66",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:67",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
index d081062d91adfd888732b534e269a110449148d3..d8d9a14ba895aab95c753383270ca1c49171c9aa 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "3TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.14",
+      "kavlan-11": "10.7.207.14",
+      "kavlan-12": "10.11.207.14",
+      "kavlan-13": "10.15.207.14",
+      "kavlan-14": "10.19.207.14",
+      "kavlan-16": "10.27.207.14",
+      "kavlan-18": "10.35.207.14",
+      "kavlan-2": "192.168.208.14",
+      "kavlan-20": "10.43.207.14",
+      "kavlan-21": "10.47.207.14",
+      "kavlan-3": "192.168.224.14",
+      "kavlan-4": "10.16.0.14",
+      "kavlan-5": "10.16.64.14",
+      "kavlan-6": "10.16.128.14",
+      "kavlan-7": "10.16.192.14",
+      "kavlan-8": "10.17.0.14",
+      "kavlan-9": "10.17.64.14"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.14",
+      "kavlan-11": "10.7.207.144",
+      "kavlan-12": "10.11.207.144",
+      "kavlan-13": "10.15.207.144",
+      "kavlan-14": "10.19.207.144",
+      "kavlan-16": "10.27.207.144",
+      "kavlan-18": "10.35.207.144",
+      "kavlan-2": "192.168.209.14",
+      "kavlan-20": "10.43.207.144",
+      "kavlan-21": "10.47.207.144",
+      "kavlan-3": "192.168.225.14",
+      "kavlan-4": "10.16.1.14",
+      "kavlan-5": "10.16.65.14",
+      "kavlan-6": "10.16.129.14",
+      "kavlan-7": "10.16.193.14",
+      "kavlan-8": "10.17.1.14",
+      "kavlan-9": "10.17.65.14"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.14",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:8e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:8f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
index e05eab3e21c24861524495a37682fcec6f834f2d..55cd91e1719248abc84e5606a2ff275958917ff7 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "FTCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.15",
+      "kavlan-11": "10.7.207.15",
+      "kavlan-12": "10.11.207.15",
+      "kavlan-13": "10.15.207.15",
+      "kavlan-14": "10.19.207.15",
+      "kavlan-16": "10.27.207.15",
+      "kavlan-18": "10.35.207.15",
+      "kavlan-2": "192.168.208.15",
+      "kavlan-20": "10.43.207.15",
+      "kavlan-21": "10.47.207.15",
+      "kavlan-3": "192.168.224.15",
+      "kavlan-4": "10.16.0.15",
+      "kavlan-5": "10.16.64.15",
+      "kavlan-6": "10.16.128.15",
+      "kavlan-7": "10.16.192.15",
+      "kavlan-8": "10.17.0.15",
+      "kavlan-9": "10.17.64.15"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.15",
+      "kavlan-11": "10.7.207.145",
+      "kavlan-12": "10.11.207.145",
+      "kavlan-13": "10.15.207.145",
+      "kavlan-14": "10.19.207.145",
+      "kavlan-16": "10.27.207.145",
+      "kavlan-18": "10.35.207.145",
+      "kavlan-2": "192.168.209.15",
+      "kavlan-20": "10.43.207.145",
+      "kavlan-21": "10.47.207.145",
+      "kavlan-3": "192.168.225.15",
+      "kavlan-4": "10.16.1.15",
+      "kavlan-5": "10.16.65.15",
+      "kavlan-6": "10.16.129.15",
+      "kavlan-7": "10.16.193.15",
+      "kavlan-8": "10.17.1.15",
+      "kavlan-9": "10.17.65.15"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.15",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c9:be",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c9:bf",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
index 52498d71c35ab1517902408b98b86e697985756c..76b1d344aeaf30a71562afaa45bd612f2ee71cdb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9N9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.16",
+      "kavlan-11": "10.7.207.16",
+      "kavlan-12": "10.11.207.16",
+      "kavlan-13": "10.15.207.16",
+      "kavlan-14": "10.19.207.16",
+      "kavlan-16": "10.27.207.16",
+      "kavlan-18": "10.35.207.16",
+      "kavlan-2": "192.168.208.16",
+      "kavlan-20": "10.43.207.16",
+      "kavlan-21": "10.47.207.16",
+      "kavlan-3": "192.168.224.16",
+      "kavlan-4": "10.16.0.16",
+      "kavlan-5": "10.16.64.16",
+      "kavlan-6": "10.16.128.16",
+      "kavlan-7": "10.16.192.16",
+      "kavlan-8": "10.17.0.16",
+      "kavlan-9": "10.17.64.16"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.16",
+      "kavlan-11": "10.7.207.146",
+      "kavlan-12": "10.11.207.146",
+      "kavlan-13": "10.15.207.146",
+      "kavlan-14": "10.19.207.146",
+      "kavlan-16": "10.27.207.146",
+      "kavlan-18": "10.35.207.146",
+      "kavlan-2": "192.168.209.16",
+      "kavlan-20": "10.43.207.146",
+      "kavlan-21": "10.47.207.146",
+      "kavlan-3": "192.168.225.16",
+      "kavlan-4": "10.16.1.16",
+      "kavlan-5": "10.16.65.16",
+      "kavlan-6": "10.16.129.16",
+      "kavlan-7": "10.16.193.16",
+      "kavlan-8": "10.17.1.16",
+      "kavlan-9": "10.17.65.16"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.16",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9b:6a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9b:6b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
index 8fb196143784b1597054ee14be2251eabbc085b3..6b6b5b738adc3e08d9730b360a60e3efa739c7d8 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "FN9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.17",
+      "kavlan-11": "10.7.207.17",
+      "kavlan-12": "10.11.207.17",
+      "kavlan-13": "10.15.207.17",
+      "kavlan-14": "10.19.207.17",
+      "kavlan-16": "10.27.207.17",
+      "kavlan-18": "10.35.207.17",
+      "kavlan-2": "192.168.208.17",
+      "kavlan-20": "10.43.207.17",
+      "kavlan-21": "10.47.207.17",
+      "kavlan-3": "192.168.224.17",
+      "kavlan-4": "10.16.0.17",
+      "kavlan-5": "10.16.64.17",
+      "kavlan-6": "10.16.128.17",
+      "kavlan-7": "10.16.192.17",
+      "kavlan-8": "10.17.0.17",
+      "kavlan-9": "10.17.64.17"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.17",
+      "kavlan-11": "10.7.207.147",
+      "kavlan-12": "10.11.207.147",
+      "kavlan-13": "10.15.207.147",
+      "kavlan-14": "10.19.207.147",
+      "kavlan-16": "10.27.207.147",
+      "kavlan-18": "10.35.207.147",
+      "kavlan-2": "192.168.209.17",
+      "kavlan-20": "10.43.207.147",
+      "kavlan-21": "10.47.207.147",
+      "kavlan-3": "192.168.225.17",
+      "kavlan-4": "10.16.1.17",
+      "kavlan-5": "10.16.65.17",
+      "kavlan-6": "10.16.129.17",
+      "kavlan-7": "10.16.193.17",
+      "kavlan-8": "10.17.1.17",
+      "kavlan-9": "10.17.65.17"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.17",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:3a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:3b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
index d8a8027e30b7548ab2112d4d40c96d95dd154e81..4c61cd23ddffbd9988100854b280403e40f78ee0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HN9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.18",
+      "kavlan-11": "10.7.207.18",
+      "kavlan-12": "10.11.207.18",
+      "kavlan-13": "10.15.207.18",
+      "kavlan-14": "10.19.207.18",
+      "kavlan-16": "10.27.207.18",
+      "kavlan-18": "10.35.207.18",
+      "kavlan-2": "192.168.208.18",
+      "kavlan-20": "10.43.207.18",
+      "kavlan-21": "10.47.207.18",
+      "kavlan-3": "192.168.224.18",
+      "kavlan-4": "10.16.0.18",
+      "kavlan-5": "10.16.64.18",
+      "kavlan-6": "10.16.128.18",
+      "kavlan-7": "10.16.192.18",
+      "kavlan-8": "10.17.0.18",
+      "kavlan-9": "10.17.64.18"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.18",
+      "kavlan-11": "10.7.207.148",
+      "kavlan-12": "10.11.207.148",
+      "kavlan-13": "10.15.207.148",
+      "kavlan-14": "10.19.207.148",
+      "kavlan-16": "10.27.207.148",
+      "kavlan-18": "10.35.207.148",
+      "kavlan-2": "192.168.209.18",
+      "kavlan-20": "10.43.207.148",
+      "kavlan-21": "10.47.207.148",
+      "kavlan-3": "192.168.225.18",
+      "kavlan-4": "10.16.1.18",
+      "kavlan-5": "10.16.65.18",
+      "kavlan-6": "10.16.129.18",
+      "kavlan-7": "10.16.193.18",
+      "kavlan-8": "10.17.1.18",
+      "kavlan-9": "10.17.65.18"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.18",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:32",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:33",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
index f57a4f8768e4da680ef53fb19f8b6c7f31f172a7..06d210f8c3481d7167fcf4fcfab301da811751f2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BN9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.19",
+      "kavlan-11": "10.7.207.19",
+      "kavlan-12": "10.11.207.19",
+      "kavlan-13": "10.15.207.19",
+      "kavlan-14": "10.19.207.19",
+      "kavlan-16": "10.27.207.19",
+      "kavlan-18": "10.35.207.19",
+      "kavlan-2": "192.168.208.19",
+      "kavlan-20": "10.43.207.19",
+      "kavlan-21": "10.47.207.19",
+      "kavlan-3": "192.168.224.19",
+      "kavlan-4": "10.16.0.19",
+      "kavlan-5": "10.16.64.19",
+      "kavlan-6": "10.16.128.19",
+      "kavlan-7": "10.16.192.19",
+      "kavlan-8": "10.17.0.19",
+      "kavlan-9": "10.17.64.19"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.19",
+      "kavlan-11": "10.7.207.149",
+      "kavlan-12": "10.11.207.149",
+      "kavlan-13": "10.15.207.149",
+      "kavlan-14": "10.19.207.149",
+      "kavlan-16": "10.27.207.149",
+      "kavlan-18": "10.35.207.149",
+      "kavlan-2": "192.168.209.19",
+      "kavlan-20": "10.43.207.149",
+      "kavlan-21": "10.47.207.149",
+      "kavlan-3": "192.168.225.19",
+      "kavlan-4": "10.16.1.19",
+      "kavlan-5": "10.16.65.19",
+      "kavlan-6": "10.16.129.19",
+      "kavlan-7": "10.16.193.19",
+      "kavlan-8": "10.17.1.19",
+      "kavlan-9": "10.17.65.19"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.19",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b4:b6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b4:b7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
index 3d1c2008e5ed263074f8d201adf8813669c002ab..2681842912a15943d49d5e0ba661a573262408ae 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DSCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.2",
+      "kavlan-11": "10.7.207.2",
+      "kavlan-12": "10.11.207.2",
+      "kavlan-13": "10.15.207.2",
+      "kavlan-14": "10.19.207.2",
+      "kavlan-16": "10.27.207.2",
+      "kavlan-18": "10.35.207.2",
+      "kavlan-2": "192.168.208.2",
+      "kavlan-20": "10.43.207.2",
+      "kavlan-21": "10.47.207.2",
+      "kavlan-3": "192.168.224.2",
+      "kavlan-4": "10.16.0.2",
+      "kavlan-5": "10.16.64.2",
+      "kavlan-6": "10.16.128.2",
+      "kavlan-7": "10.16.192.2",
+      "kavlan-8": "10.17.0.2",
+      "kavlan-9": "10.17.64.2"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.2",
+      "kavlan-11": "10.7.207.132",
+      "kavlan-12": "10.11.207.132",
+      "kavlan-13": "10.15.207.132",
+      "kavlan-14": "10.19.207.132",
+      "kavlan-16": "10.27.207.132",
+      "kavlan-18": "10.35.207.132",
+      "kavlan-2": "192.168.209.2",
+      "kavlan-20": "10.43.207.132",
+      "kavlan-21": "10.47.207.132",
+      "kavlan-3": "192.168.225.2",
+      "kavlan-4": "10.16.1.2",
+      "kavlan-5": "10.16.65.2",
+      "kavlan-6": "10.16.129.2",
+      "kavlan-7": "10.16.193.2",
+      "kavlan-8": "10.17.1.2",
+      "kavlan-9": "10.17.65.2"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.2",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:65:b2",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:65:b3",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
index 76fb1386b255213306bfeae1e71a0474ac6573ff..49fb658f0a5cabb7a5e933bbdfb89faa5c7093a4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GN9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.20",
+      "kavlan-11": "10.7.207.20",
+      "kavlan-12": "10.11.207.20",
+      "kavlan-13": "10.15.207.20",
+      "kavlan-14": "10.19.207.20",
+      "kavlan-16": "10.27.207.20",
+      "kavlan-18": "10.35.207.20",
+      "kavlan-2": "192.168.208.20",
+      "kavlan-20": "10.43.207.20",
+      "kavlan-21": "10.47.207.20",
+      "kavlan-3": "192.168.224.20",
+      "kavlan-4": "10.16.0.20",
+      "kavlan-5": "10.16.64.20",
+      "kavlan-6": "10.16.128.20",
+      "kavlan-7": "10.16.192.20",
+      "kavlan-8": "10.17.0.20",
+      "kavlan-9": "10.17.64.20"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.20",
+      "kavlan-11": "10.7.207.150",
+      "kavlan-12": "10.11.207.150",
+      "kavlan-13": "10.15.207.150",
+      "kavlan-14": "10.19.207.150",
+      "kavlan-16": "10.27.207.150",
+      "kavlan-18": "10.35.207.150",
+      "kavlan-2": "192.168.209.20",
+      "kavlan-20": "10.43.207.150",
+      "kavlan-21": "10.47.207.150",
+      "kavlan-3": "192.168.225.20",
+      "kavlan-4": "10.16.1.20",
+      "kavlan-5": "10.16.65.20",
+      "kavlan-6": "10.16.129.20",
+      "kavlan-7": "10.16.193.20",
+      "kavlan-8": "10.17.1.20",
+      "kavlan-9": "10.17.65.20"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.20",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:7e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:7f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
index 7c85433c1598be0faddd8bade564fb2aeb7fa5de..39fb63b69bcae7536610e130f402759fc57942ad 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GP9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.21",
+      "kavlan-11": "10.7.207.21",
+      "kavlan-12": "10.11.207.21",
+      "kavlan-13": "10.15.207.21",
+      "kavlan-14": "10.19.207.21",
+      "kavlan-16": "10.27.207.21",
+      "kavlan-18": "10.35.207.21",
+      "kavlan-2": "192.168.208.21",
+      "kavlan-20": "10.43.207.21",
+      "kavlan-21": "10.47.207.21",
+      "kavlan-3": "192.168.224.21",
+      "kavlan-4": "10.16.0.21",
+      "kavlan-5": "10.16.64.21",
+      "kavlan-6": "10.16.128.21",
+      "kavlan-7": "10.16.192.21",
+      "kavlan-8": "10.17.0.21",
+      "kavlan-9": "10.17.64.21"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.21",
+      "kavlan-11": "10.7.207.151",
+      "kavlan-12": "10.11.207.151",
+      "kavlan-13": "10.15.207.151",
+      "kavlan-14": "10.19.207.151",
+      "kavlan-16": "10.27.207.151",
+      "kavlan-18": "10.35.207.151",
+      "kavlan-2": "192.168.209.21",
+      "kavlan-20": "10.43.207.151",
+      "kavlan-21": "10.47.207.151",
+      "kavlan-3": "192.168.225.21",
+      "kavlan-4": "10.16.1.21",
+      "kavlan-5": "10.16.65.21",
+      "kavlan-6": "10.16.129.21",
+      "kavlan-7": "10.16.193.21",
+      "kavlan-8": "10.17.1.21",
+      "kavlan-9": "10.17.65.21"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.21",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a4:4e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a4:4f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
index 08e870432636343ce04d69a66577170ab0e0a1e0..f43ef7690ee2cf1f1cd82edc19dcb26dc5c5f60c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.22",
+      "kavlan-11": "10.7.207.22",
+      "kavlan-12": "10.11.207.22",
+      "kavlan-13": "10.15.207.22",
+      "kavlan-14": "10.19.207.22",
+      "kavlan-16": "10.27.207.22",
+      "kavlan-18": "10.35.207.22",
+      "kavlan-2": "192.168.208.22",
+      "kavlan-20": "10.43.207.22",
+      "kavlan-21": "10.47.207.22",
+      "kavlan-3": "192.168.224.22",
+      "kavlan-4": "10.16.0.22",
+      "kavlan-5": "10.16.64.22",
+      "kavlan-6": "10.16.128.22",
+      "kavlan-7": "10.16.192.22",
+      "kavlan-8": "10.17.0.22",
+      "kavlan-9": "10.17.64.22"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.22",
+      "kavlan-11": "10.7.207.152",
+      "kavlan-12": "10.11.207.152",
+      "kavlan-13": "10.15.207.152",
+      "kavlan-14": "10.19.207.152",
+      "kavlan-16": "10.27.207.152",
+      "kavlan-18": "10.35.207.152",
+      "kavlan-2": "192.168.209.22",
+      "kavlan-20": "10.43.207.152",
+      "kavlan-21": "10.47.207.152",
+      "kavlan-3": "192.168.225.22",
+      "kavlan-4": "10.16.1.22",
+      "kavlan-5": "10.16.65.22",
+      "kavlan-6": "10.16.129.22",
+      "kavlan-7": "10.16.193.22",
+      "kavlan-8": "10.17.1.22",
+      "kavlan-9": "10.17.65.22"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.22",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:e6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:e7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
index 5ba558612182ce42df2fac1df6519e274b8e35d4..b8bfa8e0a97ba26eec630aa6c9aa4aa4c416b1ce 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.23",
+      "kavlan-11": "10.7.207.23",
+      "kavlan-12": "10.11.207.23",
+      "kavlan-13": "10.15.207.23",
+      "kavlan-14": "10.19.207.23",
+      "kavlan-16": "10.27.207.23",
+      "kavlan-18": "10.35.207.23",
+      "kavlan-2": "192.168.208.23",
+      "kavlan-20": "10.43.207.23",
+      "kavlan-21": "10.47.207.23",
+      "kavlan-3": "192.168.224.23",
+      "kavlan-4": "10.16.0.23",
+      "kavlan-5": "10.16.64.23",
+      "kavlan-6": "10.16.128.23",
+      "kavlan-7": "10.16.192.23",
+      "kavlan-8": "10.17.0.23",
+      "kavlan-9": "10.17.64.23"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.23",
+      "kavlan-11": "10.7.207.153",
+      "kavlan-12": "10.11.207.153",
+      "kavlan-13": "10.15.207.153",
+      "kavlan-14": "10.19.207.153",
+      "kavlan-16": "10.27.207.153",
+      "kavlan-18": "10.35.207.153",
+      "kavlan-2": "192.168.209.23",
+      "kavlan-20": "10.43.207.153",
+      "kavlan-21": "10.47.207.153",
+      "kavlan-3": "192.168.225.23",
+      "kavlan-4": "10.16.1.23",
+      "kavlan-5": "10.16.65.23",
+      "kavlan-6": "10.16.129.23",
+      "kavlan-7": "10.16.193.23",
+      "kavlan-8": "10.17.1.23",
+      "kavlan-9": "10.17.65.23"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.23",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a3:36",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a3:37",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
index a6ed88419dfec228482083332bd1190b8d13748a..66ae75ce45ec54081d972823f0b850b0b34f63f3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "5VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.24",
+      "kavlan-11": "10.7.207.24",
+      "kavlan-12": "10.11.207.24",
+      "kavlan-13": "10.15.207.24",
+      "kavlan-14": "10.19.207.24",
+      "kavlan-16": "10.27.207.24",
+      "kavlan-18": "10.35.207.24",
+      "kavlan-2": "192.168.208.24",
+      "kavlan-20": "10.43.207.24",
+      "kavlan-21": "10.47.207.24",
+      "kavlan-3": "192.168.224.24",
+      "kavlan-4": "10.16.0.24",
+      "kavlan-5": "10.16.64.24",
+      "kavlan-6": "10.16.128.24",
+      "kavlan-7": "10.16.192.24",
+      "kavlan-8": "10.17.0.24",
+      "kavlan-9": "10.17.64.24"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.24",
+      "kavlan-11": "10.7.207.154",
+      "kavlan-12": "10.11.207.154",
+      "kavlan-13": "10.15.207.154",
+      "kavlan-14": "10.19.207.154",
+      "kavlan-16": "10.27.207.154",
+      "kavlan-18": "10.35.207.154",
+      "kavlan-2": "192.168.209.24",
+      "kavlan-20": "10.43.207.154",
+      "kavlan-21": "10.47.207.154",
+      "kavlan-3": "192.168.225.24",
+      "kavlan-4": "10.16.1.24",
+      "kavlan-5": "10.16.65.24",
+      "kavlan-6": "10.16.129.24",
+      "kavlan-7": "10.16.193.24",
+      "kavlan-8": "10.17.1.24",
+      "kavlan-9": "10.17.65.24"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.24",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:fe",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:ff",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
index 8d0ba63b3969f956cc1b2f320827764183b331b1..8d9292ddabb3ec012eb3cfa4265bfa0ccf9706d1 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "3VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.25",
+      "kavlan-11": "10.7.207.25",
+      "kavlan-12": "10.11.207.25",
+      "kavlan-13": "10.15.207.25",
+      "kavlan-14": "10.19.207.25",
+      "kavlan-16": "10.27.207.25",
+      "kavlan-18": "10.35.207.25",
+      "kavlan-2": "192.168.208.25",
+      "kavlan-20": "10.43.207.25",
+      "kavlan-21": "10.47.207.25",
+      "kavlan-3": "192.168.224.25",
+      "kavlan-4": "10.16.0.25",
+      "kavlan-5": "10.16.64.25",
+      "kavlan-6": "10.16.128.25",
+      "kavlan-7": "10.16.192.25",
+      "kavlan-8": "10.17.0.25",
+      "kavlan-9": "10.17.64.25"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.25",
+      "kavlan-11": "10.7.207.155",
+      "kavlan-12": "10.11.207.155",
+      "kavlan-13": "10.15.207.155",
+      "kavlan-14": "10.19.207.155",
+      "kavlan-16": "10.27.207.155",
+      "kavlan-18": "10.35.207.155",
+      "kavlan-2": "192.168.209.25",
+      "kavlan-20": "10.43.207.155",
+      "kavlan-21": "10.47.207.155",
+      "kavlan-3": "192.168.225.25",
+      "kavlan-4": "10.16.1.25",
+      "kavlan-5": "10.16.65.25",
+      "kavlan-6": "10.16.129.25",
+      "kavlan-7": "10.16.193.25",
+      "kavlan-8": "10.17.1.25",
+      "kavlan-9": "10.17.65.25"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.25",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cd:7e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cd:7f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
index ff47d7faf56f77acb2ef2b202859b3e58087fe84..9d0ca8b5c70ddee8df9fe270d3e1628b2281e7eb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "FP9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.26",
+      "kavlan-11": "10.7.207.26",
+      "kavlan-12": "10.11.207.26",
+      "kavlan-13": "10.15.207.26",
+      "kavlan-14": "10.19.207.26",
+      "kavlan-16": "10.27.207.26",
+      "kavlan-18": "10.35.207.26",
+      "kavlan-2": "192.168.208.26",
+      "kavlan-20": "10.43.207.26",
+      "kavlan-21": "10.47.207.26",
+      "kavlan-3": "192.168.224.26",
+      "kavlan-4": "10.16.0.26",
+      "kavlan-5": "10.16.64.26",
+      "kavlan-6": "10.16.128.26",
+      "kavlan-7": "10.16.192.26",
+      "kavlan-8": "10.17.0.26",
+      "kavlan-9": "10.17.64.26"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.26",
+      "kavlan-11": "10.7.207.156",
+      "kavlan-12": "10.11.207.156",
+      "kavlan-13": "10.15.207.156",
+      "kavlan-14": "10.19.207.156",
+      "kavlan-16": "10.27.207.156",
+      "kavlan-18": "10.35.207.156",
+      "kavlan-2": "192.168.209.26",
+      "kavlan-20": "10.43.207.156",
+      "kavlan-21": "10.47.207.156",
+      "kavlan-3": "192.168.225.26",
+      "kavlan-4": "10.16.1.26",
+      "kavlan-5": "10.16.65.26",
+      "kavlan-6": "10.16.129.26",
+      "kavlan-7": "10.16.193.26",
+      "kavlan-8": "10.17.1.26",
+      "kavlan-9": "10.17.65.26"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.26",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:3e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:3f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
index ebb57244ac3b66ea5a7edee416cab10212fbe857..fd267d6fad2c3e6ddc376ba03c21c4d9392747ad 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CP9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.27",
+      "kavlan-11": "10.7.207.27",
+      "kavlan-12": "10.11.207.27",
+      "kavlan-13": "10.15.207.27",
+      "kavlan-14": "10.19.207.27",
+      "kavlan-16": "10.27.207.27",
+      "kavlan-18": "10.35.207.27",
+      "kavlan-2": "192.168.208.27",
+      "kavlan-20": "10.43.207.27",
+      "kavlan-21": "10.47.207.27",
+      "kavlan-3": "192.168.224.27",
+      "kavlan-4": "10.16.0.27",
+      "kavlan-5": "10.16.64.27",
+      "kavlan-6": "10.16.128.27",
+      "kavlan-7": "10.16.192.27",
+      "kavlan-8": "10.17.0.27",
+      "kavlan-9": "10.17.64.27"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.27",
+      "kavlan-11": "10.7.207.157",
+      "kavlan-12": "10.11.207.157",
+      "kavlan-13": "10.15.207.157",
+      "kavlan-14": "10.19.207.157",
+      "kavlan-16": "10.27.207.157",
+      "kavlan-18": "10.35.207.157",
+      "kavlan-2": "192.168.209.27",
+      "kavlan-20": "10.43.207.157",
+      "kavlan-21": "10.47.207.157",
+      "kavlan-3": "192.168.225.27",
+      "kavlan-4": "10.16.1.27",
+      "kavlan-5": "10.16.65.27",
+      "kavlan-6": "10.16.129.27",
+      "kavlan-7": "10.16.193.27",
+      "kavlan-8": "10.17.1.27",
+      "kavlan-9": "10.17.65.27"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.27",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:fa",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:fb",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
index 7647ad3a983477720d77450ce01ce28f7b08de49..2b1abceaf47858f662bd392322c9a520873fa602 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DP9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.28",
+      "kavlan-11": "10.7.207.28",
+      "kavlan-12": "10.11.207.28",
+      "kavlan-13": "10.15.207.28",
+      "kavlan-14": "10.19.207.28",
+      "kavlan-16": "10.27.207.28",
+      "kavlan-18": "10.35.207.28",
+      "kavlan-2": "192.168.208.28",
+      "kavlan-20": "10.43.207.28",
+      "kavlan-21": "10.47.207.28",
+      "kavlan-3": "192.168.224.28",
+      "kavlan-4": "10.16.0.28",
+      "kavlan-5": "10.16.64.28",
+      "kavlan-6": "10.16.128.28",
+      "kavlan-7": "10.16.192.28",
+      "kavlan-8": "10.17.0.28",
+      "kavlan-9": "10.17.64.28"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.28",
+      "kavlan-11": "10.7.207.158",
+      "kavlan-12": "10.11.207.158",
+      "kavlan-13": "10.15.207.158",
+      "kavlan-14": "10.19.207.158",
+      "kavlan-16": "10.27.207.158",
+      "kavlan-18": "10.35.207.158",
+      "kavlan-2": "192.168.209.28",
+      "kavlan-20": "10.43.207.158",
+      "kavlan-21": "10.47.207.158",
+      "kavlan-3": "192.168.225.28",
+      "kavlan-4": "10.16.1.28",
+      "kavlan-5": "10.16.65.28",
+      "kavlan-6": "10.16.129.28",
+      "kavlan-7": "10.16.193.28",
+      "kavlan-8": "10.17.1.28",
+      "kavlan-9": "10.17.65.28"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.28",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:f2",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:f3",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
index f8a13e13db3f18fc7cf611e15673226db425f519..e90ce327332dcca540a758edf63aaaeb9df7c066 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HP9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.29",
+      "kavlan-11": "10.7.207.29",
+      "kavlan-12": "10.11.207.29",
+      "kavlan-13": "10.15.207.29",
+      "kavlan-14": "10.19.207.29",
+      "kavlan-16": "10.27.207.29",
+      "kavlan-18": "10.35.207.29",
+      "kavlan-2": "192.168.208.29",
+      "kavlan-20": "10.43.207.29",
+      "kavlan-21": "10.47.207.29",
+      "kavlan-3": "192.168.224.29",
+      "kavlan-4": "10.16.0.29",
+      "kavlan-5": "10.16.64.29",
+      "kavlan-6": "10.16.128.29",
+      "kavlan-7": "10.16.192.29",
+      "kavlan-8": "10.17.0.29",
+      "kavlan-9": "10.17.64.29"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.29",
+      "kavlan-11": "10.7.207.159",
+      "kavlan-12": "10.11.207.159",
+      "kavlan-13": "10.15.207.159",
+      "kavlan-14": "10.19.207.159",
+      "kavlan-16": "10.27.207.159",
+      "kavlan-18": "10.35.207.159",
+      "kavlan-2": "192.168.209.29",
+      "kavlan-20": "10.43.207.159",
+      "kavlan-21": "10.47.207.159",
+      "kavlan-3": "192.168.225.29",
+      "kavlan-4": "10.16.1.29",
+      "kavlan-5": "10.16.65.29",
+      "kavlan-6": "10.16.129.29",
+      "kavlan-7": "10.16.193.29",
+      "kavlan-8": "10.17.1.29",
+      "kavlan-9": "10.17.65.29"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.29",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:ce",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:cf",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
index 414b3042031e088b8c75a2800d9ee4bf3b138b28..d2e5af66afeeb00a7a40c539e74f9e8a5e536db4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "3XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.3",
+      "kavlan-11": "10.7.207.3",
+      "kavlan-12": "10.11.207.3",
+      "kavlan-13": "10.15.207.3",
+      "kavlan-14": "10.19.207.3",
+      "kavlan-16": "10.27.207.3",
+      "kavlan-18": "10.35.207.3",
+      "kavlan-2": "192.168.208.3",
+      "kavlan-20": "10.43.207.3",
+      "kavlan-21": "10.47.207.3",
+      "kavlan-3": "192.168.224.3",
+      "kavlan-4": "10.16.0.3",
+      "kavlan-5": "10.16.64.3",
+      "kavlan-6": "10.16.128.3",
+      "kavlan-7": "10.16.192.3",
+      "kavlan-8": "10.17.0.3",
+      "kavlan-9": "10.17.64.3"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.3",
+      "kavlan-11": "10.7.207.133",
+      "kavlan-12": "10.11.207.133",
+      "kavlan-13": "10.15.207.133",
+      "kavlan-14": "10.19.207.133",
+      "kavlan-16": "10.27.207.133",
+      "kavlan-18": "10.35.207.133",
+      "kavlan-2": "192.168.209.3",
+      "kavlan-20": "10.43.207.133",
+      "kavlan-21": "10.47.207.133",
+      "kavlan-3": "192.168.225.3",
+      "kavlan-4": "10.16.1.3",
+      "kavlan-5": "10.16.65.3",
+      "kavlan-6": "10.16.129.3",
+      "kavlan-7": "10.16.193.3",
+      "kavlan-8": "10.17.1.3",
+      "kavlan-9": "10.17.65.3"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.3",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:a6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:a7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
index b7ed45970f2748a0a17e1eeebaeeadef8ea7cbe2..c74a4a8f5faae9b5ff74f787dc404175ff3d2cdc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JP9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.30",
+      "kavlan-11": "10.7.207.30",
+      "kavlan-12": "10.11.207.30",
+      "kavlan-13": "10.15.207.30",
+      "kavlan-14": "10.19.207.30",
+      "kavlan-16": "10.27.207.30",
+      "kavlan-18": "10.35.207.30",
+      "kavlan-2": "192.168.208.30",
+      "kavlan-20": "10.43.207.30",
+      "kavlan-21": "10.47.207.30",
+      "kavlan-3": "192.168.224.30",
+      "kavlan-4": "10.16.0.30",
+      "kavlan-5": "10.16.64.30",
+      "kavlan-6": "10.16.128.30",
+      "kavlan-7": "10.16.192.30",
+      "kavlan-8": "10.17.0.30",
+      "kavlan-9": "10.17.64.30"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.30",
+      "kavlan-11": "10.7.207.160",
+      "kavlan-12": "10.11.207.160",
+      "kavlan-13": "10.15.207.160",
+      "kavlan-14": "10.19.207.160",
+      "kavlan-16": "10.27.207.160",
+      "kavlan-18": "10.35.207.160",
+      "kavlan-2": "192.168.209.30",
+      "kavlan-20": "10.43.207.160",
+      "kavlan-21": "10.47.207.160",
+      "kavlan-3": "192.168.225.30",
+      "kavlan-4": "10.16.1.30",
+      "kavlan-5": "10.16.65.30",
+      "kavlan-6": "10.16.129.30",
+      "kavlan-7": "10.16.193.30",
+      "kavlan-8": "10.17.1.30",
+      "kavlan-9": "10.17.65.30"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.30",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:c6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:c7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
index 41dcd2313bed581550d68ae52b37b720fa494869..f0b8a73b10300d5fc839c3331c661b369f0f4c45 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BVCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.31",
+      "kavlan-11": "10.7.207.31",
+      "kavlan-12": "10.11.207.31",
+      "kavlan-13": "10.15.207.31",
+      "kavlan-14": "10.19.207.31",
+      "kavlan-16": "10.27.207.31",
+      "kavlan-18": "10.35.207.31",
+      "kavlan-2": "192.168.208.31",
+      "kavlan-20": "10.43.207.31",
+      "kavlan-21": "10.47.207.31",
+      "kavlan-3": "192.168.224.31",
+      "kavlan-4": "10.16.0.31",
+      "kavlan-5": "10.16.64.31",
+      "kavlan-6": "10.16.128.31",
+      "kavlan-7": "10.16.192.31",
+      "kavlan-8": "10.17.0.31",
+      "kavlan-9": "10.17.64.31"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.31",
+      "kavlan-11": "10.7.207.161",
+      "kavlan-12": "10.11.207.161",
+      "kavlan-13": "10.15.207.161",
+      "kavlan-14": "10.19.207.161",
+      "kavlan-16": "10.27.207.161",
+      "kavlan-18": "10.35.207.161",
+      "kavlan-2": "192.168.209.31",
+      "kavlan-20": "10.43.207.161",
+      "kavlan-21": "10.47.207.161",
+      "kavlan-3": "192.168.225.31",
+      "kavlan-4": "10.16.1.31",
+      "kavlan-5": "10.16.65.31",
+      "kavlan-6": "10.16.129.31",
+      "kavlan-7": "10.16.193.31",
+      "kavlan-8": "10.17.1.31",
+      "kavlan-9": "10.17.65.31"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.31",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:3e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:3f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
index 07c2f73c22359abfb66edb9d35ddc1c10c64ae3c..5cd1d80c8ff4d0d1f270dac425d150ed36447e61 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CVCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.32",
+      "kavlan-11": "10.7.207.32",
+      "kavlan-12": "10.11.207.32",
+      "kavlan-13": "10.15.207.32",
+      "kavlan-14": "10.19.207.32",
+      "kavlan-16": "10.27.207.32",
+      "kavlan-18": "10.35.207.32",
+      "kavlan-2": "192.168.208.32",
+      "kavlan-20": "10.43.207.32",
+      "kavlan-21": "10.47.207.32",
+      "kavlan-3": "192.168.224.32",
+      "kavlan-4": "10.16.0.32",
+      "kavlan-5": "10.16.64.32",
+      "kavlan-6": "10.16.128.32",
+      "kavlan-7": "10.16.192.32",
+      "kavlan-8": "10.17.0.32",
+      "kavlan-9": "10.17.64.32"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.32",
+      "kavlan-11": "10.7.207.162",
+      "kavlan-12": "10.11.207.162",
+      "kavlan-13": "10.15.207.162",
+      "kavlan-14": "10.19.207.162",
+      "kavlan-16": "10.27.207.162",
+      "kavlan-18": "10.35.207.162",
+      "kavlan-2": "192.168.209.32",
+      "kavlan-20": "10.43.207.162",
+      "kavlan-21": "10.47.207.162",
+      "kavlan-3": "192.168.225.32",
+      "kavlan-4": "10.16.1.32",
+      "kavlan-5": "10.16.65.32",
+      "kavlan-6": "10.16.129.32",
+      "kavlan-7": "10.16.193.32",
+      "kavlan-8": "10.17.1.32",
+      "kavlan-9": "10.17.65.32"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.32",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:22",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:23",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
index d77215d3882e2d0342553f944b1e1e8d55b8a36d..681dad949ce1ffe8097d344cba05ccca74421098 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "3P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.33",
+      "kavlan-11": "10.7.207.33",
+      "kavlan-12": "10.11.207.33",
+      "kavlan-13": "10.15.207.33",
+      "kavlan-14": "10.19.207.33",
+      "kavlan-16": "10.27.207.33",
+      "kavlan-18": "10.35.207.33",
+      "kavlan-2": "192.168.208.33",
+      "kavlan-20": "10.43.207.33",
+      "kavlan-21": "10.47.207.33",
+      "kavlan-3": "192.168.224.33",
+      "kavlan-4": "10.16.0.33",
+      "kavlan-5": "10.16.64.33",
+      "kavlan-6": "10.16.128.33",
+      "kavlan-7": "10.16.192.33",
+      "kavlan-8": "10.17.0.33",
+      "kavlan-9": "10.17.64.33"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.33",
+      "kavlan-11": "10.7.207.163",
+      "kavlan-12": "10.11.207.163",
+      "kavlan-13": "10.15.207.163",
+      "kavlan-14": "10.19.207.163",
+      "kavlan-16": "10.27.207.163",
+      "kavlan-18": "10.35.207.163",
+      "kavlan-2": "192.168.209.33",
+      "kavlan-20": "10.43.207.163",
+      "kavlan-21": "10.47.207.163",
+      "kavlan-3": "192.168.225.33",
+      "kavlan-4": "10.16.1.33",
+      "kavlan-5": "10.16.65.33",
+      "kavlan-6": "10.16.129.33",
+      "kavlan-7": "10.16.193.33",
+      "kavlan-8": "10.17.1.33",
+      "kavlan-9": "10.17.65.33"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.33",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:12",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:13",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
index 491dc41b8a9b5a0d306d3a163d3e748d59120b69..365a0bed57105741757e1fc5c04e4f49b3f5a485 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.34",
+      "kavlan-11": "10.7.207.34",
+      "kavlan-12": "10.11.207.34",
+      "kavlan-13": "10.15.207.34",
+      "kavlan-14": "10.19.207.34",
+      "kavlan-16": "10.27.207.34",
+      "kavlan-18": "10.35.207.34",
+      "kavlan-2": "192.168.208.34",
+      "kavlan-20": "10.43.207.34",
+      "kavlan-21": "10.47.207.34",
+      "kavlan-3": "192.168.224.34",
+      "kavlan-4": "10.16.0.34",
+      "kavlan-5": "10.16.64.34",
+      "kavlan-6": "10.16.128.34",
+      "kavlan-7": "10.16.192.34",
+      "kavlan-8": "10.17.0.34",
+      "kavlan-9": "10.17.64.34"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.34",
+      "kavlan-11": "10.7.207.164",
+      "kavlan-12": "10.11.207.164",
+      "kavlan-13": "10.15.207.164",
+      "kavlan-14": "10.19.207.164",
+      "kavlan-16": "10.27.207.164",
+      "kavlan-18": "10.35.207.164",
+      "kavlan-2": "192.168.209.34",
+      "kavlan-20": "10.43.207.164",
+      "kavlan-21": "10.47.207.164",
+      "kavlan-3": "192.168.225.34",
+      "kavlan-4": "10.16.1.34",
+      "kavlan-5": "10.16.65.34",
+      "kavlan-6": "10.16.129.34",
+      "kavlan-7": "10.16.193.34",
+      "kavlan-8": "10.17.1.34",
+      "kavlan-9": "10.17.65.34"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.34",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:22",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:23",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
index 15f94e6e0165848456058a13421efb94b1f1b30f..edec3abdd10229aa30d98f56b0d3d2dd152f41c3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.35",
+      "kavlan-11": "10.7.207.35",
+      "kavlan-12": "10.11.207.35",
+      "kavlan-13": "10.15.207.35",
+      "kavlan-14": "10.19.207.35",
+      "kavlan-16": "10.27.207.35",
+      "kavlan-18": "10.35.207.35",
+      "kavlan-2": "192.168.208.35",
+      "kavlan-20": "10.43.207.35",
+      "kavlan-21": "10.47.207.35",
+      "kavlan-3": "192.168.224.35",
+      "kavlan-4": "10.16.0.35",
+      "kavlan-5": "10.16.64.35",
+      "kavlan-6": "10.16.128.35",
+      "kavlan-7": "10.16.192.35",
+      "kavlan-8": "10.17.0.35",
+      "kavlan-9": "10.17.64.35"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.35",
+      "kavlan-11": "10.7.207.165",
+      "kavlan-12": "10.11.207.165",
+      "kavlan-13": "10.15.207.165",
+      "kavlan-14": "10.19.207.165",
+      "kavlan-16": "10.27.207.165",
+      "kavlan-18": "10.35.207.165",
+      "kavlan-2": "192.168.209.35",
+      "kavlan-20": "10.43.207.165",
+      "kavlan-21": "10.47.207.165",
+      "kavlan-3": "192.168.225.35",
+      "kavlan-4": "10.16.1.35",
+      "kavlan-5": "10.16.65.35",
+      "kavlan-6": "10.16.129.35",
+      "kavlan-7": "10.16.193.35",
+      "kavlan-8": "10.17.1.35",
+      "kavlan-9": "10.17.65.35"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.35",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:46",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:47",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
index 63980ee51746b0b66729da67d26dd2cd4472aadc..d31f0f2cac1daaccadd7821f7bcb67849a03c800 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.36",
+      "kavlan-11": "10.7.207.36",
+      "kavlan-12": "10.11.207.36",
+      "kavlan-13": "10.15.207.36",
+      "kavlan-14": "10.19.207.36",
+      "kavlan-16": "10.27.207.36",
+      "kavlan-18": "10.35.207.36",
+      "kavlan-2": "192.168.208.36",
+      "kavlan-20": "10.43.207.36",
+      "kavlan-21": "10.47.207.36",
+      "kavlan-3": "192.168.224.36",
+      "kavlan-4": "10.16.0.36",
+      "kavlan-5": "10.16.64.36",
+      "kavlan-6": "10.16.128.36",
+      "kavlan-7": "10.16.192.36",
+      "kavlan-8": "10.17.0.36",
+      "kavlan-9": "10.17.64.36"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.36",
+      "kavlan-11": "10.7.207.166",
+      "kavlan-12": "10.11.207.166",
+      "kavlan-13": "10.15.207.166",
+      "kavlan-14": "10.19.207.166",
+      "kavlan-16": "10.27.207.166",
+      "kavlan-18": "10.35.207.166",
+      "kavlan-2": "192.168.209.36",
+      "kavlan-20": "10.43.207.166",
+      "kavlan-21": "10.47.207.166",
+      "kavlan-3": "192.168.225.36",
+      "kavlan-4": "10.16.1.36",
+      "kavlan-5": "10.16.65.36",
+      "kavlan-6": "10.16.129.36",
+      "kavlan-7": "10.16.193.36",
+      "kavlan-8": "10.17.1.36",
+      "kavlan-9": "10.17.65.36"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.36",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:6e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:6f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
index 22a487a166f6b52d566dd3a38d0c03da9885df73..2fde199fce37c2450ac6c86780a24eea851352fa 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "5P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.37",
+      "kavlan-11": "10.7.207.37",
+      "kavlan-12": "10.11.207.37",
+      "kavlan-13": "10.15.207.37",
+      "kavlan-14": "10.19.207.37",
+      "kavlan-16": "10.27.207.37",
+      "kavlan-18": "10.35.207.37",
+      "kavlan-2": "192.168.208.37",
+      "kavlan-20": "10.43.207.37",
+      "kavlan-21": "10.47.207.37",
+      "kavlan-3": "192.168.224.37",
+      "kavlan-4": "10.16.0.37",
+      "kavlan-5": "10.16.64.37",
+      "kavlan-6": "10.16.128.37",
+      "kavlan-7": "10.16.192.37",
+      "kavlan-8": "10.17.0.37",
+      "kavlan-9": "10.17.64.37"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.37",
+      "kavlan-11": "10.7.207.167",
+      "kavlan-12": "10.11.207.167",
+      "kavlan-13": "10.15.207.167",
+      "kavlan-14": "10.19.207.167",
+      "kavlan-16": "10.27.207.167",
+      "kavlan-18": "10.35.207.167",
+      "kavlan-2": "192.168.209.37",
+      "kavlan-20": "10.43.207.167",
+      "kavlan-21": "10.47.207.167",
+      "kavlan-3": "192.168.225.37",
+      "kavlan-4": "10.16.1.37",
+      "kavlan-5": "10.16.65.37",
+      "kavlan-6": "10.16.129.37",
+      "kavlan-7": "10.16.193.37",
+      "kavlan-8": "10.17.1.37",
+      "kavlan-9": "10.17.65.37"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.37",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:6a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:69:6b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
index 69e3548f4f8364db6535656885186d77763e8d86..564cd7d28854b1d79f831a64528b1ecff00bc169 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "3SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.38",
+      "kavlan-11": "10.7.207.38",
+      "kavlan-12": "10.11.207.38",
+      "kavlan-13": "10.15.207.38",
+      "kavlan-14": "10.19.207.38",
+      "kavlan-16": "10.27.207.38",
+      "kavlan-18": "10.35.207.38",
+      "kavlan-2": "192.168.208.38",
+      "kavlan-20": "10.43.207.38",
+      "kavlan-21": "10.47.207.38",
+      "kavlan-3": "192.168.224.38",
+      "kavlan-4": "10.16.0.38",
+      "kavlan-5": "10.16.64.38",
+      "kavlan-6": "10.16.128.38",
+      "kavlan-7": "10.16.192.38",
+      "kavlan-8": "10.17.0.38",
+      "kavlan-9": "10.17.64.38"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.38",
+      "kavlan-11": "10.7.207.168",
+      "kavlan-12": "10.11.207.168",
+      "kavlan-13": "10.15.207.168",
+      "kavlan-14": "10.19.207.168",
+      "kavlan-16": "10.27.207.168",
+      "kavlan-18": "10.35.207.168",
+      "kavlan-2": "192.168.209.38",
+      "kavlan-20": "10.43.207.168",
+      "kavlan-21": "10.47.207.168",
+      "kavlan-3": "192.168.225.38",
+      "kavlan-4": "10.16.1.38",
+      "kavlan-5": "10.16.65.38",
+      "kavlan-6": "10.16.129.38",
+      "kavlan-7": "10.16.193.38",
+      "kavlan-8": "10.17.1.38",
+      "kavlan-9": "10.17.65.38"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.38",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b0:ae",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b0:af",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
index 3d3a204a920c30ffd73767f1e06b21928906bc8e..97d9f755b30d78dab1e15129a090fbabcd35c9de 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "6WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.39",
+      "kavlan-11": "10.7.207.39",
+      "kavlan-12": "10.11.207.39",
+      "kavlan-13": "10.15.207.39",
+      "kavlan-14": "10.19.207.39",
+      "kavlan-16": "10.27.207.39",
+      "kavlan-18": "10.35.207.39",
+      "kavlan-2": "192.168.208.39",
+      "kavlan-20": "10.43.207.39",
+      "kavlan-21": "10.47.207.39",
+      "kavlan-3": "192.168.224.39",
+      "kavlan-4": "10.16.0.39",
+      "kavlan-5": "10.16.64.39",
+      "kavlan-6": "10.16.128.39",
+      "kavlan-7": "10.16.192.39",
+      "kavlan-8": "10.17.0.39",
+      "kavlan-9": "10.17.64.39"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.39",
+      "kavlan-11": "10.7.207.169",
+      "kavlan-12": "10.11.207.169",
+      "kavlan-13": "10.15.207.169",
+      "kavlan-14": "10.19.207.169",
+      "kavlan-16": "10.27.207.169",
+      "kavlan-18": "10.35.207.169",
+      "kavlan-2": "192.168.209.39",
+      "kavlan-20": "10.43.207.169",
+      "kavlan-21": "10.47.207.169",
+      "kavlan-3": "192.168.225.39",
+      "kavlan-4": "10.16.1.39",
+      "kavlan-5": "10.16.65.39",
+      "kavlan-6": "10.16.129.39",
+      "kavlan-7": "10.16.193.39",
+      "kavlan-8": "10.17.1.39",
+      "kavlan-9": "10.17.65.39"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.39",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c7:f6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c7:f7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
index 3c4154af4c1691751469095b94c4ce89b5c80378..ff9b536bcd2ae17c34237a064195e39b69d7a3fc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JWCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.4",
+      "kavlan-11": "10.7.207.4",
+      "kavlan-12": "10.11.207.4",
+      "kavlan-13": "10.15.207.4",
+      "kavlan-14": "10.19.207.4",
+      "kavlan-16": "10.27.207.4",
+      "kavlan-18": "10.35.207.4",
+      "kavlan-2": "192.168.208.4",
+      "kavlan-20": "10.43.207.4",
+      "kavlan-21": "10.47.207.4",
+      "kavlan-3": "192.168.224.4",
+      "kavlan-4": "10.16.0.4",
+      "kavlan-5": "10.16.64.4",
+      "kavlan-6": "10.16.128.4",
+      "kavlan-7": "10.16.192.4",
+      "kavlan-8": "10.17.0.4",
+      "kavlan-9": "10.17.64.4"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.4",
+      "kavlan-11": "10.7.207.134",
+      "kavlan-12": "10.11.207.134",
+      "kavlan-13": "10.15.207.134",
+      "kavlan-14": "10.19.207.134",
+      "kavlan-16": "10.27.207.134",
+      "kavlan-18": "10.35.207.134",
+      "kavlan-2": "192.168.209.4",
+      "kavlan-20": "10.43.207.134",
+      "kavlan-21": "10.47.207.134",
+      "kavlan-3": "192.168.225.4",
+      "kavlan-4": "10.16.1.4",
+      "kavlan-5": "10.16.65.4",
+      "kavlan-6": "10.16.129.4",
+      "kavlan-7": "10.16.193.4",
+      "kavlan-8": "10.17.1.4",
+      "kavlan-9": "10.17.65.4"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.4",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:86",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:87",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
index 689857eed1398aead35b8a9c2e5eeb55c72d4396..7bb227e4ad650247cf6374b345e853d76b325714 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GWCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.40",
+      "kavlan-11": "10.7.207.40",
+      "kavlan-12": "10.11.207.40",
+      "kavlan-13": "10.15.207.40",
+      "kavlan-14": "10.19.207.40",
+      "kavlan-16": "10.27.207.40",
+      "kavlan-18": "10.35.207.40",
+      "kavlan-2": "192.168.208.40",
+      "kavlan-20": "10.43.207.40",
+      "kavlan-21": "10.47.207.40",
+      "kavlan-3": "192.168.224.40",
+      "kavlan-4": "10.16.0.40",
+      "kavlan-5": "10.16.64.40",
+      "kavlan-6": "10.16.128.40",
+      "kavlan-7": "10.16.192.40",
+      "kavlan-8": "10.17.0.40",
+      "kavlan-9": "10.17.64.40"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.40",
+      "kavlan-11": "10.7.207.170",
+      "kavlan-12": "10.11.207.170",
+      "kavlan-13": "10.15.207.170",
+      "kavlan-14": "10.19.207.170",
+      "kavlan-16": "10.27.207.170",
+      "kavlan-18": "10.35.207.170",
+      "kavlan-2": "192.168.209.40",
+      "kavlan-20": "10.43.207.170",
+      "kavlan-21": "10.47.207.170",
+      "kavlan-3": "192.168.225.40",
+      "kavlan-4": "10.16.1.40",
+      "kavlan-5": "10.16.65.40",
+      "kavlan-6": "10.16.129.40",
+      "kavlan-7": "10.16.193.40",
+      "kavlan-8": "10.17.1.40",
+      "kavlan-9": "10.17.65.40"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.40",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:9e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cc:9f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
index cf86623b84f558c6ae14f3263349e227ce3498dc..a577e399740a7711ce2154ea0c63208d41260464 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DQ9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.41",
+      "kavlan-11": "10.7.207.41",
+      "kavlan-12": "10.11.207.41",
+      "kavlan-13": "10.15.207.41",
+      "kavlan-14": "10.19.207.41",
+      "kavlan-16": "10.27.207.41",
+      "kavlan-18": "10.35.207.41",
+      "kavlan-2": "192.168.208.41",
+      "kavlan-20": "10.43.207.41",
+      "kavlan-21": "10.47.207.41",
+      "kavlan-3": "192.168.224.41",
+      "kavlan-4": "10.16.0.41",
+      "kavlan-5": "10.16.64.41",
+      "kavlan-6": "10.16.128.41",
+      "kavlan-7": "10.16.192.41",
+      "kavlan-8": "10.17.0.41",
+      "kavlan-9": "10.17.64.41"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.41",
+      "kavlan-11": "10.7.207.171",
+      "kavlan-12": "10.11.207.171",
+      "kavlan-13": "10.15.207.171",
+      "kavlan-14": "10.19.207.171",
+      "kavlan-16": "10.27.207.171",
+      "kavlan-18": "10.35.207.171",
+      "kavlan-2": "192.168.209.41",
+      "kavlan-20": "10.43.207.171",
+      "kavlan-21": "10.47.207.171",
+      "kavlan-3": "192.168.225.41",
+      "kavlan-4": "10.16.1.41",
+      "kavlan-5": "10.16.65.41",
+      "kavlan-6": "10.16.129.41",
+      "kavlan-7": "10.16.193.41",
+      "kavlan-8": "10.17.1.41",
+      "kavlan-9": "10.17.65.41"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.41",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:99:72",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:99:73",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
index 61974862296402e8a9d7d2e777c60c2fb5cc1b82..ae18826a9659e9062176f59f8ffc3814f12382ed 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HQ9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.42",
+      "kavlan-11": "10.7.207.42",
+      "kavlan-12": "10.11.207.42",
+      "kavlan-13": "10.15.207.42",
+      "kavlan-14": "10.19.207.42",
+      "kavlan-16": "10.27.207.42",
+      "kavlan-18": "10.35.207.42",
+      "kavlan-2": "192.168.208.42",
+      "kavlan-20": "10.43.207.42",
+      "kavlan-21": "10.47.207.42",
+      "kavlan-3": "192.168.224.42",
+      "kavlan-4": "10.16.0.42",
+      "kavlan-5": "10.16.64.42",
+      "kavlan-6": "10.16.128.42",
+      "kavlan-7": "10.16.192.42",
+      "kavlan-8": "10.17.0.42",
+      "kavlan-9": "10.17.64.42"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.42",
+      "kavlan-11": "10.7.207.172",
+      "kavlan-12": "10.11.207.172",
+      "kavlan-13": "10.15.207.172",
+      "kavlan-14": "10.19.207.172",
+      "kavlan-16": "10.27.207.172",
+      "kavlan-18": "10.35.207.172",
+      "kavlan-2": "192.168.209.42",
+      "kavlan-20": "10.43.207.172",
+      "kavlan-21": "10.47.207.172",
+      "kavlan-3": "192.168.225.42",
+      "kavlan-4": "10.16.1.42",
+      "kavlan-5": "10.16.65.42",
+      "kavlan-6": "10.16.129.42",
+      "kavlan-7": "10.16.193.42",
+      "kavlan-8": "10.17.1.42",
+      "kavlan-9": "10.17.65.42"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.42",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:87:b2:96",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:87:b2:97",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
index a8f5c5913b7a4f3d09dab743527275ec7220fbb5..d92d44cf2ad77b8ca020f26d9a0f2a2b4300cdc1 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "6SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.43",
+      "kavlan-11": "10.7.207.43",
+      "kavlan-12": "10.11.207.43",
+      "kavlan-13": "10.15.207.43",
+      "kavlan-14": "10.19.207.43",
+      "kavlan-16": "10.27.207.43",
+      "kavlan-18": "10.35.207.43",
+      "kavlan-2": "192.168.208.43",
+      "kavlan-20": "10.43.207.43",
+      "kavlan-21": "10.47.207.43",
+      "kavlan-3": "192.168.224.43",
+      "kavlan-4": "10.16.0.43",
+      "kavlan-5": "10.16.64.43",
+      "kavlan-6": "10.16.128.43",
+      "kavlan-7": "10.16.192.43",
+      "kavlan-8": "10.17.0.43",
+      "kavlan-9": "10.17.64.43"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.43",
+      "kavlan-11": "10.7.207.173",
+      "kavlan-12": "10.11.207.173",
+      "kavlan-13": "10.15.207.173",
+      "kavlan-14": "10.19.207.173",
+      "kavlan-16": "10.27.207.173",
+      "kavlan-18": "10.35.207.173",
+      "kavlan-2": "192.168.209.43",
+      "kavlan-20": "10.43.207.173",
+      "kavlan-21": "10.47.207.173",
+      "kavlan-3": "192.168.225.43",
+      "kavlan-4": "10.16.1.43",
+      "kavlan-5": "10.16.65.43",
+      "kavlan-6": "10.16.129.43",
+      "kavlan-7": "10.16.193.43",
+      "kavlan-8": "10.17.1.43",
+      "kavlan-9": "10.17.65.43"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.43",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b0:9e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b0:9f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
index e2b02ad4fe78f9a8a55b627fc25d9fe1cd1998a8..35dcbebb6035ec3e82a6ceeeaa8887bf02e9d99c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.44",
+      "kavlan-11": "10.7.207.44",
+      "kavlan-12": "10.11.207.44",
+      "kavlan-13": "10.15.207.44",
+      "kavlan-14": "10.19.207.44",
+      "kavlan-16": "10.27.207.44",
+      "kavlan-18": "10.35.207.44",
+      "kavlan-2": "192.168.208.44",
+      "kavlan-20": "10.43.207.44",
+      "kavlan-21": "10.47.207.44",
+      "kavlan-3": "192.168.224.44",
+      "kavlan-4": "10.16.0.44",
+      "kavlan-5": "10.16.64.44",
+      "kavlan-6": "10.16.128.44",
+      "kavlan-7": "10.16.192.44",
+      "kavlan-8": "10.17.0.44",
+      "kavlan-9": "10.17.64.44"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.44",
+      "kavlan-11": "10.7.207.174",
+      "kavlan-12": "10.11.207.174",
+      "kavlan-13": "10.15.207.174",
+      "kavlan-14": "10.19.207.174",
+      "kavlan-16": "10.27.207.174",
+      "kavlan-18": "10.35.207.174",
+      "kavlan-2": "192.168.209.44",
+      "kavlan-20": "10.43.207.174",
+      "kavlan-21": "10.47.207.174",
+      "kavlan-3": "192.168.225.44",
+      "kavlan-4": "10.16.1.44",
+      "kavlan-5": "10.16.65.44",
+      "kavlan-6": "10.16.129.44",
+      "kavlan-7": "10.16.193.44",
+      "kavlan-8": "10.17.1.44",
+      "kavlan-9": "10.17.65.44"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.44",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:d6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:d7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
index 118843d871138aea8ae763894352de51222bb43b..3940a15780effd0622cde3f049c0c9c454e9d050 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.45",
+      "kavlan-11": "10.7.207.45",
+      "kavlan-12": "10.11.207.45",
+      "kavlan-13": "10.15.207.45",
+      "kavlan-14": "10.19.207.45",
+      "kavlan-16": "10.27.207.45",
+      "kavlan-18": "10.35.207.45",
+      "kavlan-2": "192.168.208.45",
+      "kavlan-20": "10.43.207.45",
+      "kavlan-21": "10.47.207.45",
+      "kavlan-3": "192.168.224.45",
+      "kavlan-4": "10.16.0.45",
+      "kavlan-5": "10.16.64.45",
+      "kavlan-6": "10.16.128.45",
+      "kavlan-7": "10.16.192.45",
+      "kavlan-8": "10.17.0.45",
+      "kavlan-9": "10.17.64.45"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.45",
+      "kavlan-11": "10.7.207.175",
+      "kavlan-12": "10.11.207.175",
+      "kavlan-13": "10.15.207.175",
+      "kavlan-14": "10.19.207.175",
+      "kavlan-16": "10.27.207.175",
+      "kavlan-18": "10.35.207.175",
+      "kavlan-2": "192.168.209.45",
+      "kavlan-20": "10.43.207.175",
+      "kavlan-21": "10.47.207.175",
+      "kavlan-3": "192.168.225.45",
+      "kavlan-4": "10.16.1.45",
+      "kavlan-5": "10.16.65.45",
+      "kavlan-6": "10.16.129.45",
+      "kavlan-7": "10.16.193.45",
+      "kavlan-8": "10.17.1.45",
+      "kavlan-9": "10.17.65.45"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.45",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:f6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:f7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
index ff27dfab5b3b8014bb657959f7047942d5b047ea..7b389701214cfe6a5ed0b49ab520fb562c796ab3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HTCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.46",
+      "kavlan-11": "10.7.207.46",
+      "kavlan-12": "10.11.207.46",
+      "kavlan-13": "10.15.207.46",
+      "kavlan-14": "10.19.207.46",
+      "kavlan-16": "10.27.207.46",
+      "kavlan-18": "10.35.207.46",
+      "kavlan-2": "192.168.208.46",
+      "kavlan-20": "10.43.207.46",
+      "kavlan-21": "10.47.207.46",
+      "kavlan-3": "192.168.224.46",
+      "kavlan-4": "10.16.0.46",
+      "kavlan-5": "10.16.64.46",
+      "kavlan-6": "10.16.128.46",
+      "kavlan-7": "10.16.192.46",
+      "kavlan-8": "10.17.0.46",
+      "kavlan-9": "10.17.64.46"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.46",
+      "kavlan-11": "10.7.207.176",
+      "kavlan-12": "10.11.207.176",
+      "kavlan-13": "10.15.207.176",
+      "kavlan-14": "10.19.207.176",
+      "kavlan-16": "10.27.207.176",
+      "kavlan-18": "10.35.207.176",
+      "kavlan-2": "192.168.209.46",
+      "kavlan-20": "10.43.207.176",
+      "kavlan-21": "10.47.207.176",
+      "kavlan-3": "192.168.225.46",
+      "kavlan-4": "10.16.1.46",
+      "kavlan-5": "10.16.65.46",
+      "kavlan-6": "10.16.129.46",
+      "kavlan-7": "10.16.193.46",
+      "kavlan-8": "10.17.1.46",
+      "kavlan-9": "10.17.65.46"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.46",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:1e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:1f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
index 45acd811eaa00164e4c207895c37faa7b77e7365..178eacf6538f1c3cbfd86a5e66bfdd1364af8cfa 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CTCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.47",
+      "kavlan-11": "10.7.207.47",
+      "kavlan-12": "10.11.207.47",
+      "kavlan-13": "10.15.207.47",
+      "kavlan-14": "10.19.207.47",
+      "kavlan-16": "10.27.207.47",
+      "kavlan-18": "10.35.207.47",
+      "kavlan-2": "192.168.208.47",
+      "kavlan-20": "10.43.207.47",
+      "kavlan-21": "10.47.207.47",
+      "kavlan-3": "192.168.224.47",
+      "kavlan-4": "10.16.0.47",
+      "kavlan-5": "10.16.64.47",
+      "kavlan-6": "10.16.128.47",
+      "kavlan-7": "10.16.192.47",
+      "kavlan-8": "10.17.0.47",
+      "kavlan-9": "10.17.64.47"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.47",
+      "kavlan-11": "10.7.207.177",
+      "kavlan-12": "10.11.207.177",
+      "kavlan-13": "10.15.207.177",
+      "kavlan-14": "10.19.207.177",
+      "kavlan-16": "10.27.207.177",
+      "kavlan-18": "10.35.207.177",
+      "kavlan-2": "192.168.209.47",
+      "kavlan-20": "10.43.207.177",
+      "kavlan-21": "10.47.207.177",
+      "kavlan-3": "192.168.225.47",
+      "kavlan-4": "10.16.1.47",
+      "kavlan-5": "10.16.65.47",
+      "kavlan-6": "10.16.129.47",
+      "kavlan-7": "10.16.193.47",
+      "kavlan-8": "10.17.1.47",
+      "kavlan-9": "10.17.65.47"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.47",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:06",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:07",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
index 3bb30546e5d58c6d1206aa298c0864bc7dabe9e6..4433da35a63786ef098bbd32432c68c71d799b61 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DTCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.48",
+      "kavlan-11": "10.7.207.48",
+      "kavlan-12": "10.11.207.48",
+      "kavlan-13": "10.15.207.48",
+      "kavlan-14": "10.19.207.48",
+      "kavlan-16": "10.27.207.48",
+      "kavlan-18": "10.35.207.48",
+      "kavlan-2": "192.168.208.48",
+      "kavlan-20": "10.43.207.48",
+      "kavlan-21": "10.47.207.48",
+      "kavlan-3": "192.168.224.48",
+      "kavlan-4": "10.16.0.48",
+      "kavlan-5": "10.16.64.48",
+      "kavlan-6": "10.16.128.48",
+      "kavlan-7": "10.16.192.48",
+      "kavlan-8": "10.17.0.48",
+      "kavlan-9": "10.17.64.48"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.48",
+      "kavlan-11": "10.7.207.178",
+      "kavlan-12": "10.11.207.178",
+      "kavlan-13": "10.15.207.178",
+      "kavlan-14": "10.19.207.178",
+      "kavlan-16": "10.27.207.178",
+      "kavlan-18": "10.35.207.178",
+      "kavlan-2": "192.168.209.48",
+      "kavlan-20": "10.43.207.178",
+      "kavlan-21": "10.47.207.178",
+      "kavlan-3": "192.168.225.48",
+      "kavlan-4": "10.16.1.48",
+      "kavlan-5": "10.16.65.48",
+      "kavlan-6": "10.16.129.48",
+      "kavlan-7": "10.16.193.48",
+      "kavlan-8": "10.17.1.48",
+      "kavlan-9": "10.17.65.48"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.48",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c9:c6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c9:c7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
index 0c6050ac858b7298ed282f6c80523b230d56ae88..fbe83434a0df0c65f63bc1659e9da5cabe1513fa 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.49",
+      "kavlan-11": "10.7.207.49",
+      "kavlan-12": "10.11.207.49",
+      "kavlan-13": "10.15.207.49",
+      "kavlan-14": "10.19.207.49",
+      "kavlan-16": "10.27.207.49",
+      "kavlan-18": "10.35.207.49",
+      "kavlan-2": "192.168.208.49",
+      "kavlan-20": "10.43.207.49",
+      "kavlan-21": "10.47.207.49",
+      "kavlan-3": "192.168.224.49",
+      "kavlan-4": "10.16.0.49",
+      "kavlan-5": "10.16.64.49",
+      "kavlan-6": "10.16.128.49",
+      "kavlan-7": "10.16.192.49",
+      "kavlan-8": "10.17.0.49",
+      "kavlan-9": "10.17.64.49"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.49",
+      "kavlan-11": "10.7.207.179",
+      "kavlan-12": "10.11.207.179",
+      "kavlan-13": "10.15.207.179",
+      "kavlan-14": "10.19.207.179",
+      "kavlan-16": "10.27.207.179",
+      "kavlan-18": "10.35.207.179",
+      "kavlan-2": "192.168.209.49",
+      "kavlan-20": "10.43.207.179",
+      "kavlan-21": "10.47.207.179",
+      "kavlan-3": "192.168.225.49",
+      "kavlan-4": "10.16.1.49",
+      "kavlan-5": "10.16.65.49",
+      "kavlan-6": "10.16.129.49",
+      "kavlan-7": "10.16.193.49",
+      "kavlan-8": "10.17.1.49",
+      "kavlan-9": "10.17.65.49"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.49",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:6e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:6f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
index ff030b7285e931a274c5ff26716adef8e9459a9d..2aa3a80a66d7adc43d04d8d2baba26e0b9ead5c3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "5XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.5",
+      "kavlan-11": "10.7.207.5",
+      "kavlan-12": "10.11.207.5",
+      "kavlan-13": "10.15.207.5",
+      "kavlan-14": "10.19.207.5",
+      "kavlan-16": "10.27.207.5",
+      "kavlan-18": "10.35.207.5",
+      "kavlan-2": "192.168.208.5",
+      "kavlan-20": "10.43.207.5",
+      "kavlan-21": "10.47.207.5",
+      "kavlan-3": "192.168.224.5",
+      "kavlan-4": "10.16.0.5",
+      "kavlan-5": "10.16.64.5",
+      "kavlan-6": "10.16.128.5",
+      "kavlan-7": "10.16.192.5",
+      "kavlan-8": "10.17.0.5",
+      "kavlan-9": "10.17.64.5"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.5",
+      "kavlan-11": "10.7.207.135",
+      "kavlan-12": "10.11.207.135",
+      "kavlan-13": "10.15.207.135",
+      "kavlan-14": "10.19.207.135",
+      "kavlan-16": "10.27.207.135",
+      "kavlan-18": "10.35.207.135",
+      "kavlan-2": "192.168.209.5",
+      "kavlan-20": "10.43.207.135",
+      "kavlan-21": "10.47.207.135",
+      "kavlan-3": "192.168.225.5",
+      "kavlan-4": "10.16.1.5",
+      "kavlan-5": "10.16.65.5",
+      "kavlan-6": "10.16.129.5",
+      "kavlan-7": "10.16.193.5",
+      "kavlan-8": "10.17.1.5",
+      "kavlan-9": "10.17.65.5"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.5",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d2:e6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d2:e7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
index b0784f15d3160c1a8d53e665a5d3bf1d358021cb..0329b2a9bb4278e5660e0d7ef9084ff5c1a18a3f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "5SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.50",
+      "kavlan-11": "10.7.207.50",
+      "kavlan-12": "10.11.207.50",
+      "kavlan-13": "10.15.207.50",
+      "kavlan-14": "10.19.207.50",
+      "kavlan-16": "10.27.207.50",
+      "kavlan-18": "10.35.207.50",
+      "kavlan-2": "192.168.208.50",
+      "kavlan-20": "10.43.207.50",
+      "kavlan-21": "10.47.207.50",
+      "kavlan-3": "192.168.224.50",
+      "kavlan-4": "10.16.0.50",
+      "kavlan-5": "10.16.64.50",
+      "kavlan-6": "10.16.128.50",
+      "kavlan-7": "10.16.192.50",
+      "kavlan-8": "10.17.0.50",
+      "kavlan-9": "10.17.64.50"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.50",
+      "kavlan-11": "10.7.207.180",
+      "kavlan-12": "10.11.207.180",
+      "kavlan-13": "10.15.207.180",
+      "kavlan-14": "10.19.207.180",
+      "kavlan-16": "10.27.207.180",
+      "kavlan-18": "10.35.207.180",
+      "kavlan-2": "192.168.209.50",
+      "kavlan-20": "10.43.207.180",
+      "kavlan-21": "10.47.207.180",
+      "kavlan-3": "192.168.225.50",
+      "kavlan-4": "10.16.1.50",
+      "kavlan-5": "10.16.65.50",
+      "kavlan-6": "10.16.129.50",
+      "kavlan-7": "10.16.193.50",
+      "kavlan-8": "10.17.1.50",
+      "kavlan-9": "10.17.65.50"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.50",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a3:a6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a3:a7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
index 36648b32a77d9b199d6e9ac52bc8de46c3c96859..7ce04abedff23485ac9fca55dbf89623114cf9fb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.51",
+      "kavlan-11": "10.7.207.51",
+      "kavlan-12": "10.11.207.51",
+      "kavlan-13": "10.15.207.51",
+      "kavlan-14": "10.19.207.51",
+      "kavlan-16": "10.27.207.51",
+      "kavlan-18": "10.35.207.51",
+      "kavlan-2": "192.168.208.51",
+      "kavlan-20": "10.43.207.51",
+      "kavlan-21": "10.47.207.51",
+      "kavlan-3": "192.168.224.51",
+      "kavlan-4": "10.16.0.51",
+      "kavlan-5": "10.16.64.51",
+      "kavlan-6": "10.16.128.51",
+      "kavlan-7": "10.16.192.51",
+      "kavlan-8": "10.17.0.51",
+      "kavlan-9": "10.17.64.51"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.51",
+      "kavlan-11": "10.7.207.181",
+      "kavlan-12": "10.11.207.181",
+      "kavlan-13": "10.15.207.181",
+      "kavlan-14": "10.19.207.181",
+      "kavlan-16": "10.27.207.181",
+      "kavlan-18": "10.35.207.181",
+      "kavlan-2": "192.168.209.51",
+      "kavlan-20": "10.43.207.181",
+      "kavlan-21": "10.47.207.181",
+      "kavlan-3": "192.168.225.51",
+      "kavlan-4": "10.16.1.51",
+      "kavlan-5": "10.16.65.51",
+      "kavlan-6": "10.16.129.51",
+      "kavlan-7": "10.16.193.51",
+      "kavlan-8": "10.17.1.51",
+      "kavlan-9": "10.17.65.51"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.51",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:76",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:77",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
index 42a3672c8f1964db8ccc4f294e8956b4d3f523ad..46dda43b9ffb1ea71d6383daaf2db3e13e118563 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HVCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.52",
+      "kavlan-11": "10.7.207.52",
+      "kavlan-12": "10.11.207.52",
+      "kavlan-13": "10.15.207.52",
+      "kavlan-14": "10.19.207.52",
+      "kavlan-16": "10.27.207.52",
+      "kavlan-18": "10.35.207.52",
+      "kavlan-2": "192.168.208.52",
+      "kavlan-20": "10.43.207.52",
+      "kavlan-21": "10.47.207.52",
+      "kavlan-3": "192.168.224.52",
+      "kavlan-4": "10.16.0.52",
+      "kavlan-5": "10.16.64.52",
+      "kavlan-6": "10.16.128.52",
+      "kavlan-7": "10.16.192.52",
+      "kavlan-8": "10.17.0.52",
+      "kavlan-9": "10.17.64.52"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.52",
+      "kavlan-11": "10.7.207.182",
+      "kavlan-12": "10.11.207.182",
+      "kavlan-13": "10.15.207.182",
+      "kavlan-14": "10.19.207.182",
+      "kavlan-16": "10.27.207.182",
+      "kavlan-18": "10.35.207.182",
+      "kavlan-2": "192.168.209.52",
+      "kavlan-20": "10.43.207.182",
+      "kavlan-21": "10.47.207.182",
+      "kavlan-3": "192.168.225.52",
+      "kavlan-4": "10.16.1.52",
+      "kavlan-5": "10.16.65.52",
+      "kavlan-6": "10.16.129.52",
+      "kavlan-7": "10.16.193.52",
+      "kavlan-8": "10.17.1.52",
+      "kavlan-9": "10.17.65.52"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.52",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:16",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:17",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
index 60ac4a887064074cb5e979be0b98196922f79757..1aab1f05b86ed339b896b14c9421999048e66205 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JVCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.53",
+      "kavlan-11": "10.7.207.53",
+      "kavlan-12": "10.11.207.53",
+      "kavlan-13": "10.15.207.53",
+      "kavlan-14": "10.19.207.53",
+      "kavlan-16": "10.27.207.53",
+      "kavlan-18": "10.35.207.53",
+      "kavlan-2": "192.168.208.53",
+      "kavlan-20": "10.43.207.53",
+      "kavlan-21": "10.47.207.53",
+      "kavlan-3": "192.168.224.53",
+      "kavlan-4": "10.16.0.53",
+      "kavlan-5": "10.16.64.53",
+      "kavlan-6": "10.16.128.53",
+      "kavlan-7": "10.16.192.53",
+      "kavlan-8": "10.17.0.53",
+      "kavlan-9": "10.17.64.53"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.53",
+      "kavlan-11": "10.7.207.183",
+      "kavlan-12": "10.11.207.183",
+      "kavlan-13": "10.15.207.183",
+      "kavlan-14": "10.19.207.183",
+      "kavlan-16": "10.27.207.183",
+      "kavlan-18": "10.35.207.183",
+      "kavlan-2": "192.168.209.53",
+      "kavlan-20": "10.43.207.183",
+      "kavlan-21": "10.47.207.183",
+      "kavlan-3": "192.168.225.53",
+      "kavlan-4": "10.16.1.53",
+      "kavlan-5": "10.16.65.53",
+      "kavlan-6": "10.16.129.53",
+      "kavlan-7": "10.16.193.53",
+      "kavlan-8": "10.17.1.53",
+      "kavlan-9": "10.17.65.53"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.53",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b5:06",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b5:07",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
index 9ffb3322f5b3b31e2b0bf6b75e6e3cdeaa614713..ef2827484cd0914cae76362e141ecee002fe47b1 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "5WCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.54",
+      "kavlan-11": "10.7.207.54",
+      "kavlan-12": "10.11.207.54",
+      "kavlan-13": "10.15.207.54",
+      "kavlan-14": "10.19.207.54",
+      "kavlan-16": "10.27.207.54",
+      "kavlan-18": "10.35.207.54",
+      "kavlan-2": "192.168.208.54",
+      "kavlan-20": "10.43.207.54",
+      "kavlan-21": "10.47.207.54",
+      "kavlan-3": "192.168.224.54",
+      "kavlan-4": "10.16.0.54",
+      "kavlan-5": "10.16.64.54",
+      "kavlan-6": "10.16.128.54",
+      "kavlan-7": "10.16.192.54",
+      "kavlan-8": "10.17.0.54",
+      "kavlan-9": "10.17.64.54"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.54",
+      "kavlan-11": "10.7.207.184",
+      "kavlan-12": "10.11.207.184",
+      "kavlan-13": "10.15.207.184",
+      "kavlan-14": "10.19.207.184",
+      "kavlan-16": "10.27.207.184",
+      "kavlan-18": "10.35.207.184",
+      "kavlan-2": "192.168.209.54",
+      "kavlan-20": "10.43.207.184",
+      "kavlan-21": "10.47.207.184",
+      "kavlan-3": "192.168.225.54",
+      "kavlan-4": "10.16.1.54",
+      "kavlan-5": "10.16.65.54",
+      "kavlan-6": "10.16.129.54",
+      "kavlan-7": "10.16.193.54",
+      "kavlan-8": "10.17.1.54",
+      "kavlan-9": "10.17.65.54"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.54",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:ee",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c8:ef",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
index 3f915dfa13784270e2d485bdbff6fba13a5d6184..786a9f6c34582f5d1323c174b8228ed537780336 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GTCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.55",
+      "kavlan-11": "10.7.207.55",
+      "kavlan-12": "10.11.207.55",
+      "kavlan-13": "10.15.207.55",
+      "kavlan-14": "10.19.207.55",
+      "kavlan-16": "10.27.207.55",
+      "kavlan-18": "10.35.207.55",
+      "kavlan-2": "192.168.208.55",
+      "kavlan-20": "10.43.207.55",
+      "kavlan-21": "10.47.207.55",
+      "kavlan-3": "192.168.224.55",
+      "kavlan-4": "10.16.0.55",
+      "kavlan-5": "10.16.64.55",
+      "kavlan-6": "10.16.128.55",
+      "kavlan-7": "10.16.192.55",
+      "kavlan-8": "10.17.0.55",
+      "kavlan-9": "10.17.64.55"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.55",
+      "kavlan-11": "10.7.207.185",
+      "kavlan-12": "10.11.207.185",
+      "kavlan-13": "10.15.207.185",
+      "kavlan-14": "10.19.207.185",
+      "kavlan-16": "10.27.207.185",
+      "kavlan-18": "10.35.207.185",
+      "kavlan-2": "192.168.209.55",
+      "kavlan-20": "10.43.207.185",
+      "kavlan-21": "10.47.207.185",
+      "kavlan-3": "192.168.225.55",
+      "kavlan-4": "10.16.1.55",
+      "kavlan-5": "10.16.65.55",
+      "kavlan-6": "10.16.129.55",
+      "kavlan-7": "10.16.193.55",
+      "kavlan-8": "10.17.1.55",
+      "kavlan-9": "10.17.65.55"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.55",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:ce",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:cf",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
index 14f618601b7437811dc4e0fe11c56632301371b8..99e3e754d300786d6a748e66c4385002f0d6829a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.56",
+      "kavlan-11": "10.7.207.56",
+      "kavlan-12": "10.11.207.56",
+      "kavlan-13": "10.15.207.56",
+      "kavlan-14": "10.19.207.56",
+      "kavlan-16": "10.27.207.56",
+      "kavlan-18": "10.35.207.56",
+      "kavlan-2": "192.168.208.56",
+      "kavlan-20": "10.43.207.56",
+      "kavlan-21": "10.47.207.56",
+      "kavlan-3": "192.168.224.56",
+      "kavlan-4": "10.16.0.56",
+      "kavlan-5": "10.16.64.56",
+      "kavlan-6": "10.16.128.56",
+      "kavlan-7": "10.16.192.56",
+      "kavlan-8": "10.17.0.56",
+      "kavlan-9": "10.17.64.56"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.56",
+      "kavlan-11": "10.7.207.186",
+      "kavlan-12": "10.11.207.186",
+      "kavlan-13": "10.15.207.186",
+      "kavlan-14": "10.19.207.186",
+      "kavlan-16": "10.27.207.186",
+      "kavlan-18": "10.35.207.186",
+      "kavlan-2": "192.168.209.56",
+      "kavlan-20": "10.43.207.186",
+      "kavlan-21": "10.47.207.186",
+      "kavlan-3": "192.168.225.56",
+      "kavlan-4": "10.16.1.56",
+      "kavlan-5": "10.16.65.56",
+      "kavlan-6": "10.16.129.56",
+      "kavlan-7": "10.16.193.56",
+      "kavlan-8": "10.17.1.56",
+      "kavlan-9": "10.17.65.56"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.56",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:65:12",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:65:13",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
index fbafc77593c34af1d640cfa558a44dc7b60ce302..3b3de05eb9fd73f4e39503a8629462c0d045563f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.57",
+      "kavlan-11": "10.7.207.57",
+      "kavlan-12": "10.11.207.57",
+      "kavlan-13": "10.15.207.57",
+      "kavlan-14": "10.19.207.57",
+      "kavlan-16": "10.27.207.57",
+      "kavlan-18": "10.35.207.57",
+      "kavlan-2": "192.168.208.57",
+      "kavlan-20": "10.43.207.57",
+      "kavlan-21": "10.47.207.57",
+      "kavlan-3": "192.168.224.57",
+      "kavlan-4": "10.16.0.57",
+      "kavlan-5": "10.16.64.57",
+      "kavlan-6": "10.16.128.57",
+      "kavlan-7": "10.16.192.57",
+      "kavlan-8": "10.17.0.57",
+      "kavlan-9": "10.17.64.57"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.57",
+      "kavlan-11": "10.7.207.187",
+      "kavlan-12": "10.11.207.187",
+      "kavlan-13": "10.15.207.187",
+      "kavlan-14": "10.19.207.187",
+      "kavlan-16": "10.27.207.187",
+      "kavlan-18": "10.35.207.187",
+      "kavlan-2": "192.168.209.57",
+      "kavlan-20": "10.43.207.187",
+      "kavlan-21": "10.47.207.187",
+      "kavlan-3": "192.168.225.57",
+      "kavlan-4": "10.16.1.57",
+      "kavlan-5": "10.16.65.57",
+      "kavlan-6": "10.16.129.57",
+      "kavlan-7": "10.16.193.57",
+      "kavlan-8": "10.17.1.57",
+      "kavlan-9": "10.17.65.57"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.57",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:16",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:17",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
index 2a98a87192abd409ec44f4bc2fd3ab1c9b1f3e49..a2311ba3f0a5e4a3651dede10b2ce39c3827354b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "6VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.58",
+      "kavlan-11": "10.7.207.58",
+      "kavlan-12": "10.11.207.58",
+      "kavlan-13": "10.15.207.58",
+      "kavlan-14": "10.19.207.58",
+      "kavlan-16": "10.27.207.58",
+      "kavlan-18": "10.35.207.58",
+      "kavlan-2": "192.168.208.58",
+      "kavlan-20": "10.43.207.58",
+      "kavlan-21": "10.47.207.58",
+      "kavlan-3": "192.168.224.58",
+      "kavlan-4": "10.16.0.58",
+      "kavlan-5": "10.16.64.58",
+      "kavlan-6": "10.16.128.58",
+      "kavlan-7": "10.16.192.58",
+      "kavlan-8": "10.17.0.58",
+      "kavlan-9": "10.17.64.58"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.58",
+      "kavlan-11": "10.7.207.188",
+      "kavlan-12": "10.11.207.188",
+      "kavlan-13": "10.15.207.188",
+      "kavlan-14": "10.19.207.188",
+      "kavlan-16": "10.27.207.188",
+      "kavlan-18": "10.35.207.188",
+      "kavlan-2": "192.168.209.58",
+      "kavlan-20": "10.43.207.188",
+      "kavlan-21": "10.47.207.188",
+      "kavlan-3": "192.168.225.58",
+      "kavlan-4": "10.16.1.58",
+      "kavlan-5": "10.16.65.58",
+      "kavlan-6": "10.16.129.58",
+      "kavlan-7": "10.16.193.58",
+      "kavlan-8": "10.17.1.58",
+      "kavlan-9": "10.17.65.58"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.58",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:ee",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c4:ef",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
index 7514d4a0094894e04d00c0245a5e147f3976890b..ce9a88577c62b3624ad80de92ffbadbcb2b6488c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.59",
+      "kavlan-11": "10.7.207.59",
+      "kavlan-12": "10.11.207.59",
+      "kavlan-13": "10.15.207.59",
+      "kavlan-14": "10.19.207.59",
+      "kavlan-16": "10.27.207.59",
+      "kavlan-18": "10.35.207.59",
+      "kavlan-2": "192.168.208.59",
+      "kavlan-20": "10.43.207.59",
+      "kavlan-21": "10.47.207.59",
+      "kavlan-3": "192.168.224.59",
+      "kavlan-4": "10.16.0.59",
+      "kavlan-5": "10.16.64.59",
+      "kavlan-6": "10.16.128.59",
+      "kavlan-7": "10.16.192.59",
+      "kavlan-8": "10.17.0.59",
+      "kavlan-9": "10.17.64.59"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.59",
+      "kavlan-11": "10.7.207.189",
+      "kavlan-12": "10.11.207.189",
+      "kavlan-13": "10.15.207.189",
+      "kavlan-14": "10.19.207.189",
+      "kavlan-16": "10.27.207.189",
+      "kavlan-18": "10.35.207.189",
+      "kavlan-2": "192.168.209.59",
+      "kavlan-20": "10.43.207.189",
+      "kavlan-21": "10.47.207.189",
+      "kavlan-3": "192.168.225.59",
+      "kavlan-4": "10.16.1.59",
+      "kavlan-5": "10.16.65.59",
+      "kavlan-6": "10.16.129.59",
+      "kavlan-7": "10.16.193.59",
+      "kavlan-8": "10.17.1.59",
+      "kavlan-9": "10.17.65.59"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.59",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:2e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:2f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
index 01a80f28a38aefe0fa36e17280f0c0097fb9ff73..afcb7da5592328c82395c6987e0cfcddefebe068 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.6",
+      "kavlan-11": "10.7.207.6",
+      "kavlan-12": "10.11.207.6",
+      "kavlan-13": "10.15.207.6",
+      "kavlan-14": "10.19.207.6",
+      "kavlan-16": "10.27.207.6",
+      "kavlan-18": "10.35.207.6",
+      "kavlan-2": "192.168.208.6",
+      "kavlan-20": "10.43.207.6",
+      "kavlan-21": "10.47.207.6",
+      "kavlan-3": "192.168.224.6",
+      "kavlan-4": "10.16.0.6",
+      "kavlan-5": "10.16.64.6",
+      "kavlan-6": "10.16.128.6",
+      "kavlan-7": "10.16.192.6",
+      "kavlan-8": "10.17.0.6",
+      "kavlan-9": "10.17.64.6"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.6",
+      "kavlan-11": "10.7.207.136",
+      "kavlan-12": "10.11.207.136",
+      "kavlan-13": "10.15.207.136",
+      "kavlan-14": "10.19.207.136",
+      "kavlan-16": "10.27.207.136",
+      "kavlan-18": "10.35.207.136",
+      "kavlan-2": "192.168.209.6",
+      "kavlan-20": "10.43.207.136",
+      "kavlan-21": "10.47.207.136",
+      "kavlan-3": "192.168.225.6",
+      "kavlan-4": "10.16.1.6",
+      "kavlan-5": "10.16.65.6",
+      "kavlan-6": "10.16.129.6",
+      "kavlan-7": "10.16.193.6",
+      "kavlan-8": "10.17.1.6",
+      "kavlan-9": "10.17.65.6"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.6",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d0:16",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d0:17",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
index 86880f5ac5e188d5096916f4ed288e455ee2829d..176f9bac9b73df9d80f600731bf7654c9aafd920 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "4VCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.60",
+      "kavlan-11": "10.7.207.60",
+      "kavlan-12": "10.11.207.60",
+      "kavlan-13": "10.15.207.60",
+      "kavlan-14": "10.19.207.60",
+      "kavlan-16": "10.27.207.60",
+      "kavlan-18": "10.35.207.60",
+      "kavlan-2": "192.168.208.60",
+      "kavlan-20": "10.43.207.60",
+      "kavlan-21": "10.47.207.60",
+      "kavlan-3": "192.168.224.60",
+      "kavlan-4": "10.16.0.60",
+      "kavlan-5": "10.16.64.60",
+      "kavlan-6": "10.16.128.60",
+      "kavlan-7": "10.16.192.60",
+      "kavlan-8": "10.17.0.60",
+      "kavlan-9": "10.17.64.60"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.60",
+      "kavlan-11": "10.7.207.190",
+      "kavlan-12": "10.11.207.190",
+      "kavlan-13": "10.15.207.190",
+      "kavlan-14": "10.19.207.190",
+      "kavlan-16": "10.27.207.190",
+      "kavlan-18": "10.35.207.190",
+      "kavlan-2": "192.168.209.60",
+      "kavlan-20": "10.43.207.190",
+      "kavlan-21": "10.47.207.190",
+      "kavlan-3": "192.168.225.60",
+      "kavlan-4": "10.16.1.60",
+      "kavlan-5": "10.16.65.60",
+      "kavlan-6": "10.16.129.60",
+      "kavlan-7": "10.16.193.60",
+      "kavlan-8": "10.17.1.60",
+      "kavlan-9": "10.17.65.60"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.60",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:f6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:f7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
index a70d7bf4b13d2fced63f6b25bf5764363f18cd68..50bbe6c98c2ba0c87ead175b172df8dd90e1e5cc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.61",
+      "kavlan-11": "10.7.207.61",
+      "kavlan-12": "10.11.207.61",
+      "kavlan-13": "10.15.207.61",
+      "kavlan-14": "10.19.207.61",
+      "kavlan-16": "10.27.207.61",
+      "kavlan-18": "10.35.207.61",
+      "kavlan-2": "192.168.208.61",
+      "kavlan-20": "10.43.207.61",
+      "kavlan-21": "10.47.207.61",
+      "kavlan-3": "192.168.224.61",
+      "kavlan-4": "10.16.0.61",
+      "kavlan-5": "10.16.64.61",
+      "kavlan-6": "10.16.128.61",
+      "kavlan-7": "10.16.192.61",
+      "kavlan-8": "10.17.0.61",
+      "kavlan-9": "10.17.64.61"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.61",
+      "kavlan-11": "10.7.207.191",
+      "kavlan-12": "10.11.207.191",
+      "kavlan-13": "10.15.207.191",
+      "kavlan-14": "10.19.207.191",
+      "kavlan-16": "10.27.207.191",
+      "kavlan-18": "10.35.207.191",
+      "kavlan-2": "192.168.209.61",
+      "kavlan-20": "10.43.207.191",
+      "kavlan-21": "10.47.207.191",
+      "kavlan-3": "192.168.225.61",
+      "kavlan-4": "10.16.1.61",
+      "kavlan-5": "10.16.65.61",
+      "kavlan-6": "10.16.129.61",
+      "kavlan-7": "10.16.193.61",
+      "kavlan-8": "10.17.1.61",
+      "kavlan-9": "10.17.65.61"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.61",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:1a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:1b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
index abad2c8e26b1876a1ecd6b2aae9f4dbe37885ec0..f0abc166e883a8f2115f527a60e1c853d41630a7 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.62",
+      "kavlan-11": "10.7.207.62",
+      "kavlan-12": "10.11.207.62",
+      "kavlan-13": "10.15.207.62",
+      "kavlan-14": "10.19.207.62",
+      "kavlan-16": "10.27.207.62",
+      "kavlan-18": "10.35.207.62",
+      "kavlan-2": "192.168.208.62",
+      "kavlan-20": "10.43.207.62",
+      "kavlan-21": "10.47.207.62",
+      "kavlan-3": "192.168.224.62",
+      "kavlan-4": "10.16.0.62",
+      "kavlan-5": "10.16.64.62",
+      "kavlan-6": "10.16.128.62",
+      "kavlan-7": "10.16.192.62",
+      "kavlan-8": "10.17.0.62",
+      "kavlan-9": "10.17.64.62"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.62",
+      "kavlan-11": "10.7.207.192",
+      "kavlan-12": "10.11.207.192",
+      "kavlan-13": "10.15.207.192",
+      "kavlan-14": "10.19.207.192",
+      "kavlan-16": "10.27.207.192",
+      "kavlan-18": "10.35.207.192",
+      "kavlan-2": "192.168.209.62",
+      "kavlan-20": "10.43.207.192",
+      "kavlan-21": "10.47.207.192",
+      "kavlan-3": "192.168.225.62",
+      "kavlan-4": "10.16.1.62",
+      "kavlan-5": "10.16.65.62",
+      "kavlan-6": "10.16.129.62",
+      "kavlan-7": "10.16.193.62",
+      "kavlan-8": "10.17.1.62",
+      "kavlan-9": "10.17.65.62"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.62",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:02",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:03",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
index 587414cd17aed16b66ac3757ced85f147c432f4f..95f743a2639af0c17f135a8e1ab35bd99cfc62ea 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "5Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.63",
+      "kavlan-11": "10.7.207.63",
+      "kavlan-12": "10.11.207.63",
+      "kavlan-13": "10.15.207.63",
+      "kavlan-14": "10.19.207.63",
+      "kavlan-16": "10.27.207.63",
+      "kavlan-18": "10.35.207.63",
+      "kavlan-2": "192.168.208.63",
+      "kavlan-20": "10.43.207.63",
+      "kavlan-21": "10.47.207.63",
+      "kavlan-3": "192.168.224.63",
+      "kavlan-4": "10.16.0.63",
+      "kavlan-5": "10.16.64.63",
+      "kavlan-6": "10.16.128.63",
+      "kavlan-7": "10.16.192.63",
+      "kavlan-8": "10.17.0.63",
+      "kavlan-9": "10.17.64.63"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.63",
+      "kavlan-11": "10.7.207.193",
+      "kavlan-12": "10.11.207.193",
+      "kavlan-13": "10.15.207.193",
+      "kavlan-14": "10.19.207.193",
+      "kavlan-16": "10.27.207.193",
+      "kavlan-18": "10.35.207.193",
+      "kavlan-2": "192.168.209.63",
+      "kavlan-20": "10.43.207.193",
+      "kavlan-21": "10.47.207.193",
+      "kavlan-3": "192.168.225.63",
+      "kavlan-4": "10.16.1.63",
+      "kavlan-5": "10.16.65.63",
+      "kavlan-6": "10.16.129.63",
+      "kavlan-7": "10.16.193.63",
+      "kavlan-8": "10.17.1.63",
+      "kavlan-9": "10.17.65.63"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.63",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:66",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:67",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
index a4cff2f8afd875d101970d6320a347ecde09dbb0..c3e293bf1071b436e1366c709c7c4e45f36198b9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.64",
+      "kavlan-11": "10.7.207.64",
+      "kavlan-12": "10.11.207.64",
+      "kavlan-13": "10.15.207.64",
+      "kavlan-14": "10.19.207.64",
+      "kavlan-16": "10.27.207.64",
+      "kavlan-18": "10.35.207.64",
+      "kavlan-2": "192.168.208.64",
+      "kavlan-20": "10.43.207.64",
+      "kavlan-21": "10.47.207.64",
+      "kavlan-3": "192.168.224.64",
+      "kavlan-4": "10.16.0.64",
+      "kavlan-5": "10.16.64.64",
+      "kavlan-6": "10.16.128.64",
+      "kavlan-7": "10.16.192.64",
+      "kavlan-8": "10.17.0.64",
+      "kavlan-9": "10.17.64.64"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.64",
+      "kavlan-11": "10.7.207.194",
+      "kavlan-12": "10.11.207.194",
+      "kavlan-13": "10.15.207.194",
+      "kavlan-14": "10.19.207.194",
+      "kavlan-16": "10.27.207.194",
+      "kavlan-18": "10.35.207.194",
+      "kavlan-2": "192.168.209.64",
+      "kavlan-20": "10.43.207.194",
+      "kavlan-21": "10.47.207.194",
+      "kavlan-3": "192.168.225.64",
+      "kavlan-4": "10.16.1.64",
+      "kavlan-5": "10.16.65.64",
+      "kavlan-6": "10.16.129.64",
+      "kavlan-7": "10.16.193.64",
+      "kavlan-8": "10.17.1.64",
+      "kavlan-9": "10.17.65.64"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.64",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:86",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:87",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
index d003e7cff9f6659464404e8cac5f6685c27b075f..6ff252669de87e5faec8e445e1ec93be960e9320 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "4TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.65",
+      "kavlan-11": "10.7.207.65",
+      "kavlan-12": "10.11.207.65",
+      "kavlan-13": "10.15.207.65",
+      "kavlan-14": "10.19.207.65",
+      "kavlan-16": "10.27.207.65",
+      "kavlan-18": "10.35.207.65",
+      "kavlan-2": "192.168.208.65",
+      "kavlan-20": "10.43.207.65",
+      "kavlan-21": "10.47.207.65",
+      "kavlan-3": "192.168.224.65",
+      "kavlan-4": "10.16.0.65",
+      "kavlan-5": "10.16.64.65",
+      "kavlan-6": "10.16.128.65",
+      "kavlan-7": "10.16.192.65",
+      "kavlan-8": "10.17.0.65",
+      "kavlan-9": "10.17.64.65"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.65",
+      "kavlan-11": "10.7.207.195",
+      "kavlan-12": "10.11.207.195",
+      "kavlan-13": "10.15.207.195",
+      "kavlan-14": "10.19.207.195",
+      "kavlan-16": "10.27.207.195",
+      "kavlan-18": "10.35.207.195",
+      "kavlan-2": "192.168.209.65",
+      "kavlan-20": "10.43.207.195",
+      "kavlan-21": "10.47.207.195",
+      "kavlan-3": "192.168.225.65",
+      "kavlan-4": "10.16.1.65",
+      "kavlan-5": "10.16.65.65",
+      "kavlan-6": "10.16.129.65",
+      "kavlan-7": "10.16.193.65",
+      "kavlan-8": "10.17.1.65",
+      "kavlan-9": "10.17.65.65"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.65",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b5:de",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b5:df",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
index e62497ac18db6187b60eeb80d8cea588b4566d93..b455756b5d218d1cc1cd52e1f627baf16dd0e156 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "5TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.66",
+      "kavlan-11": "10.7.207.66",
+      "kavlan-12": "10.11.207.66",
+      "kavlan-13": "10.15.207.66",
+      "kavlan-14": "10.19.207.66",
+      "kavlan-16": "10.27.207.66",
+      "kavlan-18": "10.35.207.66",
+      "kavlan-2": "192.168.208.66",
+      "kavlan-20": "10.43.207.66",
+      "kavlan-21": "10.47.207.66",
+      "kavlan-3": "192.168.224.66",
+      "kavlan-4": "10.16.0.66",
+      "kavlan-5": "10.16.64.66",
+      "kavlan-6": "10.16.128.66",
+      "kavlan-7": "10.16.192.66",
+      "kavlan-8": "10.17.0.66",
+      "kavlan-9": "10.17.64.66"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.66",
+      "kavlan-11": "10.7.207.196",
+      "kavlan-12": "10.11.207.196",
+      "kavlan-13": "10.15.207.196",
+      "kavlan-14": "10.19.207.196",
+      "kavlan-16": "10.27.207.196",
+      "kavlan-18": "10.35.207.196",
+      "kavlan-2": "192.168.209.66",
+      "kavlan-20": "10.43.207.196",
+      "kavlan-21": "10.47.207.196",
+      "kavlan-3": "192.168.225.66",
+      "kavlan-4": "10.16.1.66",
+      "kavlan-5": "10.16.65.66",
+      "kavlan-6": "10.16.129.66",
+      "kavlan-7": "10.16.193.66",
+      "kavlan-8": "10.17.1.66",
+      "kavlan-9": "10.17.65.66"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.66",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:1e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:1f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
index 3573c11d0657de233dac32ed55ef4385d0ccf05e..8e8a2a62e1aaa43683f83f052ebd256e2b640e4a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.67",
+      "kavlan-11": "10.7.207.67",
+      "kavlan-12": "10.11.207.67",
+      "kavlan-13": "10.15.207.67",
+      "kavlan-14": "10.19.207.67",
+      "kavlan-16": "10.27.207.67",
+      "kavlan-18": "10.35.207.67",
+      "kavlan-2": "192.168.208.67",
+      "kavlan-20": "10.43.207.67",
+      "kavlan-21": "10.47.207.67",
+      "kavlan-3": "192.168.224.67",
+      "kavlan-4": "10.16.0.67",
+      "kavlan-5": "10.16.64.67",
+      "kavlan-6": "10.16.128.67",
+      "kavlan-7": "10.16.192.67",
+      "kavlan-8": "10.17.0.67",
+      "kavlan-9": "10.17.64.67"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.67",
+      "kavlan-11": "10.7.207.197",
+      "kavlan-12": "10.11.207.197",
+      "kavlan-13": "10.15.207.197",
+      "kavlan-14": "10.19.207.197",
+      "kavlan-16": "10.27.207.197",
+      "kavlan-18": "10.35.207.197",
+      "kavlan-2": "192.168.209.67",
+      "kavlan-20": "10.43.207.197",
+      "kavlan-21": "10.47.207.197",
+      "kavlan-3": "192.168.225.67",
+      "kavlan-4": "10.16.1.67",
+      "kavlan-5": "10.16.65.67",
+      "kavlan-6": "10.16.129.67",
+      "kavlan-7": "10.16.193.67",
+      "kavlan-8": "10.17.1.67",
+      "kavlan-9": "10.17.65.67"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.67",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:1e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:1f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
index 74e9537bf5cc804a10c500025fb8e36726d373f9..e3a1ff5993b6cba4cac876ec95c8be2fefa9d24a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "HSCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.68",
+      "kavlan-11": "10.7.207.68",
+      "kavlan-12": "10.11.207.68",
+      "kavlan-13": "10.15.207.68",
+      "kavlan-14": "10.19.207.68",
+      "kavlan-16": "10.27.207.68",
+      "kavlan-18": "10.35.207.68",
+      "kavlan-2": "192.168.208.68",
+      "kavlan-20": "10.43.207.68",
+      "kavlan-21": "10.47.207.68",
+      "kavlan-3": "192.168.224.68",
+      "kavlan-4": "10.16.0.68",
+      "kavlan-5": "10.16.64.68",
+      "kavlan-6": "10.16.128.68",
+      "kavlan-7": "10.16.192.68",
+      "kavlan-8": "10.17.0.68",
+      "kavlan-9": "10.17.64.68"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.68",
+      "kavlan-11": "10.7.207.198",
+      "kavlan-12": "10.11.207.198",
+      "kavlan-13": "10.15.207.198",
+      "kavlan-14": "10.19.207.198",
+      "kavlan-16": "10.27.207.198",
+      "kavlan-18": "10.35.207.198",
+      "kavlan-2": "192.168.209.68",
+      "kavlan-20": "10.43.207.198",
+      "kavlan-21": "10.47.207.198",
+      "kavlan-3": "192.168.225.68",
+      "kavlan-4": "10.16.1.68",
+      "kavlan-5": "10.16.65.68",
+      "kavlan-6": "10.16.129.68",
+      "kavlan-7": "10.16.193.68",
+      "kavlan-8": "10.17.1.68",
+      "kavlan-9": "10.17.65.68"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.68",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:5e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:5f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
index 09e979963e74b88acfa856ac39cf96d3e6a6e1f0..498731475194a325f1f23a4a0f0fb31c5eb10d4f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.69",
+      "kavlan-11": "10.7.207.69",
+      "kavlan-12": "10.11.207.69",
+      "kavlan-13": "10.15.207.69",
+      "kavlan-14": "10.19.207.69",
+      "kavlan-16": "10.27.207.69",
+      "kavlan-18": "10.35.207.69",
+      "kavlan-2": "192.168.208.69",
+      "kavlan-20": "10.43.207.69",
+      "kavlan-21": "10.47.207.69",
+      "kavlan-3": "192.168.224.69",
+      "kavlan-4": "10.16.0.69",
+      "kavlan-5": "10.16.64.69",
+      "kavlan-6": "10.16.128.69",
+      "kavlan-7": "10.16.192.69",
+      "kavlan-8": "10.17.0.69",
+      "kavlan-9": "10.17.64.69"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.69",
+      "kavlan-11": "10.7.207.199",
+      "kavlan-12": "10.11.207.199",
+      "kavlan-13": "10.15.207.199",
+      "kavlan-14": "10.19.207.199",
+      "kavlan-16": "10.27.207.199",
+      "kavlan-18": "10.35.207.199",
+      "kavlan-2": "192.168.209.69",
+      "kavlan-20": "10.43.207.199",
+      "kavlan-21": "10.47.207.199",
+      "kavlan-3": "192.168.225.69",
+      "kavlan-4": "10.16.1.69",
+      "kavlan-5": "10.16.65.69",
+      "kavlan-6": "10.16.129.69",
+      "kavlan-7": "10.16.193.69",
+      "kavlan-8": "10.17.1.69",
+      "kavlan-9": "10.17.65.69"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.69",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c9:a6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c9:a7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
index 81951d3a1f3782b200426a0f4430d46441ac6a50..37461db788a33a95f37a649ce614f4a93ce9dab2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JTCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.7",
+      "kavlan-11": "10.7.207.7",
+      "kavlan-12": "10.11.207.7",
+      "kavlan-13": "10.15.207.7",
+      "kavlan-14": "10.19.207.7",
+      "kavlan-16": "10.27.207.7",
+      "kavlan-18": "10.35.207.7",
+      "kavlan-2": "192.168.208.7",
+      "kavlan-20": "10.43.207.7",
+      "kavlan-21": "10.47.207.7",
+      "kavlan-3": "192.168.224.7",
+      "kavlan-4": "10.16.0.7",
+      "kavlan-5": "10.16.64.7",
+      "kavlan-6": "10.16.128.7",
+      "kavlan-7": "10.16.192.7",
+      "kavlan-8": "10.17.0.7",
+      "kavlan-9": "10.17.64.7"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.7",
+      "kavlan-11": "10.7.207.137",
+      "kavlan-12": "10.11.207.137",
+      "kavlan-13": "10.15.207.137",
+      "kavlan-14": "10.19.207.137",
+      "kavlan-16": "10.27.207.137",
+      "kavlan-18": "10.35.207.137",
+      "kavlan-2": "192.168.209.7",
+      "kavlan-20": "10.43.207.137",
+      "kavlan-21": "10.47.207.137",
+      "kavlan-3": "192.168.225.7",
+      "kavlan-4": "10.16.1.7",
+      "kavlan-5": "10.16.65.7",
+      "kavlan-6": "10.16.129.7",
+      "kavlan-7": "10.16.193.7",
+      "kavlan-8": "10.17.1.7",
+      "kavlan-9": "10.17.65.7"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.7",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:fe",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:ff",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
index 3a0938a8144e7a5c98cced1b2eef758d03e2f67e..173353e368b660c603327a970026f3a73ae16264 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "6Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.70",
+      "kavlan-11": "10.7.207.70",
+      "kavlan-12": "10.11.207.70",
+      "kavlan-13": "10.15.207.70",
+      "kavlan-14": "10.19.207.70",
+      "kavlan-16": "10.27.207.70",
+      "kavlan-18": "10.35.207.70",
+      "kavlan-2": "192.168.208.70",
+      "kavlan-20": "10.43.207.70",
+      "kavlan-21": "10.47.207.70",
+      "kavlan-3": "192.168.224.70",
+      "kavlan-4": "10.16.0.70",
+      "kavlan-5": "10.16.64.70",
+      "kavlan-6": "10.16.128.70",
+      "kavlan-7": "10.16.192.70",
+      "kavlan-8": "10.17.0.70",
+      "kavlan-9": "10.17.64.70"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.70",
+      "kavlan-11": "10.7.207.200",
+      "kavlan-12": "10.11.207.200",
+      "kavlan-13": "10.15.207.200",
+      "kavlan-14": "10.19.207.200",
+      "kavlan-16": "10.27.207.200",
+      "kavlan-18": "10.35.207.200",
+      "kavlan-2": "192.168.209.70",
+      "kavlan-20": "10.43.207.200",
+      "kavlan-21": "10.47.207.200",
+      "kavlan-3": "192.168.225.70",
+      "kavlan-4": "10.16.1.70",
+      "kavlan-5": "10.16.65.70",
+      "kavlan-6": "10.16.129.70",
+      "kavlan-7": "10.16.193.70",
+      "kavlan-8": "10.17.1.70",
+      "kavlan-9": "10.17.65.70"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.70",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ca:7e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ca:7f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
index a19e06483ada23efcb8d4d39306e22ac372ccadf..ddfb34f4f29ca2b040fa6fa053cc48f229645cfa 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.71",
+      "kavlan-11": "10.7.207.71",
+      "kavlan-12": "10.11.207.71",
+      "kavlan-13": "10.15.207.71",
+      "kavlan-14": "10.19.207.71",
+      "kavlan-16": "10.27.207.71",
+      "kavlan-18": "10.35.207.71",
+      "kavlan-2": "192.168.208.71",
+      "kavlan-20": "10.43.207.71",
+      "kavlan-21": "10.47.207.71",
+      "kavlan-3": "192.168.224.71",
+      "kavlan-4": "10.16.0.71",
+      "kavlan-5": "10.16.64.71",
+      "kavlan-6": "10.16.128.71",
+      "kavlan-7": "10.16.192.71",
+      "kavlan-8": "10.17.0.71",
+      "kavlan-9": "10.17.64.71"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.71",
+      "kavlan-11": "10.7.207.201",
+      "kavlan-12": "10.11.207.201",
+      "kavlan-13": "10.15.207.201",
+      "kavlan-14": "10.19.207.201",
+      "kavlan-16": "10.27.207.201",
+      "kavlan-18": "10.35.207.201",
+      "kavlan-2": "192.168.209.71",
+      "kavlan-20": "10.43.207.201",
+      "kavlan-21": "10.47.207.201",
+      "kavlan-3": "192.168.225.71",
+      "kavlan-4": "10.16.1.71",
+      "kavlan-5": "10.16.65.71",
+      "kavlan-6": "10.16.129.71",
+      "kavlan-7": "10.16.193.71",
+      "kavlan-8": "10.17.1.71",
+      "kavlan-9": "10.17.65.71"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.71",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:0a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:0b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
index 596257ac6406629decd2090d6cf12fe33ccb4580..a989aae23df6e3c8df5139e69b8f56e348cf4c4e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BQ9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.72",
+      "kavlan-11": "10.7.207.72",
+      "kavlan-12": "10.11.207.72",
+      "kavlan-13": "10.15.207.72",
+      "kavlan-14": "10.19.207.72",
+      "kavlan-16": "10.27.207.72",
+      "kavlan-18": "10.35.207.72",
+      "kavlan-2": "192.168.208.72",
+      "kavlan-20": "10.43.207.72",
+      "kavlan-21": "10.47.207.72",
+      "kavlan-3": "192.168.224.72",
+      "kavlan-4": "10.16.0.72",
+      "kavlan-5": "10.16.64.72",
+      "kavlan-6": "10.16.128.72",
+      "kavlan-7": "10.16.192.72",
+      "kavlan-8": "10.17.0.72",
+      "kavlan-9": "10.17.64.72"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.72",
+      "kavlan-11": "10.7.207.202",
+      "kavlan-12": "10.11.207.202",
+      "kavlan-13": "10.15.207.202",
+      "kavlan-14": "10.19.207.202",
+      "kavlan-16": "10.27.207.202",
+      "kavlan-18": "10.35.207.202",
+      "kavlan-2": "192.168.209.72",
+      "kavlan-20": "10.43.207.202",
+      "kavlan-21": "10.47.207.202",
+      "kavlan-3": "192.168.225.72",
+      "kavlan-4": "10.16.1.72",
+      "kavlan-5": "10.16.65.72",
+      "kavlan-6": "10.16.129.72",
+      "kavlan-7": "10.16.193.72",
+      "kavlan-8": "10.17.1.72",
+      "kavlan-9": "10.17.65.72"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.72",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:7e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:7f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
index 38184b95e088956df13005e991ae4bf8167b5d03..89d2010ab715f8826ae3df12b1ae3d376da8e5c6 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "4SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.73",
+      "kavlan-11": "10.7.207.73",
+      "kavlan-12": "10.11.207.73",
+      "kavlan-13": "10.15.207.73",
+      "kavlan-14": "10.19.207.73",
+      "kavlan-16": "10.27.207.73",
+      "kavlan-18": "10.35.207.73",
+      "kavlan-2": "192.168.208.73",
+      "kavlan-20": "10.43.207.73",
+      "kavlan-21": "10.47.207.73",
+      "kavlan-3": "192.168.224.73",
+      "kavlan-4": "10.16.0.73",
+      "kavlan-5": "10.16.64.73",
+      "kavlan-6": "10.16.128.73",
+      "kavlan-7": "10.16.192.73",
+      "kavlan-8": "10.17.0.73",
+      "kavlan-9": "10.17.64.73"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.73",
+      "kavlan-11": "10.7.207.203",
+      "kavlan-12": "10.11.207.203",
+      "kavlan-13": "10.15.207.203",
+      "kavlan-14": "10.19.207.203",
+      "kavlan-16": "10.27.207.203",
+      "kavlan-18": "10.35.207.203",
+      "kavlan-2": "192.168.209.73",
+      "kavlan-20": "10.43.207.203",
+      "kavlan-21": "10.47.207.203",
+      "kavlan-3": "192.168.225.73",
+      "kavlan-4": "10.16.1.73",
+      "kavlan-5": "10.16.65.73",
+      "kavlan-6": "10.16.129.73",
+      "kavlan-7": "10.16.193.73",
+      "kavlan-8": "10.17.1.73",
+      "kavlan-9": "10.17.65.73"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.73",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:6a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:6b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
index 895c0c5cf678353e11aa4eb5c1775a881ee48cef..6fdb78af51d3422b193f9cee9c0ab83d7c06b5b0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CSCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.74",
+      "kavlan-11": "10.7.207.74",
+      "kavlan-12": "10.11.207.74",
+      "kavlan-13": "10.15.207.74",
+      "kavlan-14": "10.19.207.74",
+      "kavlan-16": "10.27.207.74",
+      "kavlan-18": "10.35.207.74",
+      "kavlan-2": "192.168.208.74",
+      "kavlan-20": "10.43.207.74",
+      "kavlan-21": "10.47.207.74",
+      "kavlan-3": "192.168.224.74",
+      "kavlan-4": "10.16.0.74",
+      "kavlan-5": "10.16.64.74",
+      "kavlan-6": "10.16.128.74",
+      "kavlan-7": "10.16.192.74",
+      "kavlan-8": "10.17.0.74",
+      "kavlan-9": "10.17.64.74"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.74",
+      "kavlan-11": "10.7.207.204",
+      "kavlan-12": "10.11.207.204",
+      "kavlan-13": "10.15.207.204",
+      "kavlan-14": "10.19.207.204",
+      "kavlan-16": "10.27.207.204",
+      "kavlan-18": "10.35.207.204",
+      "kavlan-2": "192.168.209.74",
+      "kavlan-20": "10.43.207.204",
+      "kavlan-21": "10.47.207.204",
+      "kavlan-3": "192.168.225.74",
+      "kavlan-4": "10.16.1.74",
+      "kavlan-5": "10.16.65.74",
+      "kavlan-6": "10.16.129.74",
+      "kavlan-7": "10.16.193.74",
+      "kavlan-8": "10.17.1.74",
+      "kavlan-9": "10.17.65.74"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.74",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:a6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c0:a7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
index 13e09df0a1bdaaa9ec802baee6120e0f1a1f2db6..05bd6f0c709f73a61d81cd2a63f3d23715affbd7 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.75",
+      "kavlan-11": "10.7.207.75",
+      "kavlan-12": "10.11.207.75",
+      "kavlan-13": "10.15.207.75",
+      "kavlan-14": "10.19.207.75",
+      "kavlan-16": "10.27.207.75",
+      "kavlan-18": "10.35.207.75",
+      "kavlan-2": "192.168.208.75",
+      "kavlan-20": "10.43.207.75",
+      "kavlan-21": "10.47.207.75",
+      "kavlan-3": "192.168.224.75",
+      "kavlan-4": "10.16.0.75",
+      "kavlan-5": "10.16.64.75",
+      "kavlan-6": "10.16.128.75",
+      "kavlan-7": "10.16.192.75",
+      "kavlan-8": "10.17.0.75",
+      "kavlan-9": "10.17.64.75"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.75",
+      "kavlan-11": "10.7.207.205",
+      "kavlan-12": "10.11.207.205",
+      "kavlan-13": "10.15.207.205",
+      "kavlan-14": "10.19.207.205",
+      "kavlan-16": "10.27.207.205",
+      "kavlan-18": "10.35.207.205",
+      "kavlan-2": "192.168.209.75",
+      "kavlan-20": "10.43.207.205",
+      "kavlan-21": "10.47.207.205",
+      "kavlan-3": "192.168.225.75",
+      "kavlan-4": "10.16.1.75",
+      "kavlan-5": "10.16.65.75",
+      "kavlan-6": "10.16.129.75",
+      "kavlan-7": "10.16.193.75",
+      "kavlan-8": "10.17.1.75",
+      "kavlan-9": "10.17.65.75"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.75",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:26",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:27",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
index f37ed9534bb1dd45ae7a6f141336e60a50cebf0f..322c5feb201c64635e0ee33eff9f099435b15c8e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8TCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.76",
+      "kavlan-11": "10.7.207.76",
+      "kavlan-12": "10.11.207.76",
+      "kavlan-13": "10.15.207.76",
+      "kavlan-14": "10.19.207.76",
+      "kavlan-16": "10.27.207.76",
+      "kavlan-18": "10.35.207.76",
+      "kavlan-2": "192.168.208.76",
+      "kavlan-20": "10.43.207.76",
+      "kavlan-21": "10.47.207.76",
+      "kavlan-3": "192.168.224.76",
+      "kavlan-4": "10.16.0.76",
+      "kavlan-5": "10.16.64.76",
+      "kavlan-6": "10.16.128.76",
+      "kavlan-7": "10.16.192.76",
+      "kavlan-8": "10.17.0.76",
+      "kavlan-9": "10.17.64.76"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.76",
+      "kavlan-11": "10.7.207.206",
+      "kavlan-12": "10.11.207.206",
+      "kavlan-13": "10.15.207.206",
+      "kavlan-14": "10.19.207.206",
+      "kavlan-16": "10.27.207.206",
+      "kavlan-18": "10.35.207.206",
+      "kavlan-2": "192.168.209.76",
+      "kavlan-20": "10.43.207.206",
+      "kavlan-21": "10.47.207.206",
+      "kavlan-3": "192.168.225.76",
+      "kavlan-4": "10.16.1.76",
+      "kavlan-5": "10.16.65.76",
+      "kavlan-6": "10.16.129.76",
+      "kavlan-7": "10.16.193.76",
+      "kavlan-8": "10.17.1.76",
+      "kavlan-9": "10.17.65.76"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.76",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:82",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:63:83",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
index e9e79b3e404ba87b39a70c37c6bfe64182d546ca..122f4a12de454a1f98bc33672b6777d7a1ce3ff3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1R9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.77",
+      "kavlan-11": "10.7.207.77",
+      "kavlan-12": "10.11.207.77",
+      "kavlan-13": "10.15.207.77",
+      "kavlan-14": "10.19.207.77",
+      "kavlan-16": "10.27.207.77",
+      "kavlan-18": "10.35.207.77",
+      "kavlan-2": "192.168.208.77",
+      "kavlan-20": "10.43.207.77",
+      "kavlan-21": "10.47.207.77",
+      "kavlan-3": "192.168.224.77",
+      "kavlan-4": "10.16.0.77",
+      "kavlan-5": "10.16.64.77",
+      "kavlan-6": "10.16.128.77",
+      "kavlan-7": "10.16.192.77",
+      "kavlan-8": "10.17.0.77",
+      "kavlan-9": "10.17.64.77"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.77",
+      "kavlan-11": "10.7.207.207",
+      "kavlan-12": "10.11.207.207",
+      "kavlan-13": "10.15.207.207",
+      "kavlan-14": "10.19.207.207",
+      "kavlan-16": "10.27.207.207",
+      "kavlan-18": "10.35.207.207",
+      "kavlan-2": "192.168.209.77",
+      "kavlan-20": "10.43.207.207",
+      "kavlan-21": "10.47.207.207",
+      "kavlan-3": "192.168.225.77",
+      "kavlan-4": "10.16.1.77",
+      "kavlan-5": "10.16.65.77",
+      "kavlan-6": "10.16.129.77",
+      "kavlan-7": "10.16.193.77",
+      "kavlan-8": "10.17.1.77",
+      "kavlan-9": "10.17.65.77"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.77",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a9:66",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a9:67",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
index 18f5cc87f41cd0f9a0fc92dce3c4d5cd698df098..58f9bd19e9fb16162212fb1bd8f508008d7588ce 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2R9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.78",
+      "kavlan-11": "10.7.207.78",
+      "kavlan-12": "10.11.207.78",
+      "kavlan-13": "10.15.207.78",
+      "kavlan-14": "10.19.207.78",
+      "kavlan-16": "10.27.207.78",
+      "kavlan-18": "10.35.207.78",
+      "kavlan-2": "192.168.208.78",
+      "kavlan-20": "10.43.207.78",
+      "kavlan-21": "10.47.207.78",
+      "kavlan-3": "192.168.224.78",
+      "kavlan-4": "10.16.0.78",
+      "kavlan-5": "10.16.64.78",
+      "kavlan-6": "10.16.128.78",
+      "kavlan-7": "10.16.192.78",
+      "kavlan-8": "10.17.0.78",
+      "kavlan-9": "10.17.64.78"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.78",
+      "kavlan-11": "10.7.207.208",
+      "kavlan-12": "10.11.207.208",
+      "kavlan-13": "10.15.207.208",
+      "kavlan-14": "10.19.207.208",
+      "kavlan-16": "10.27.207.208",
+      "kavlan-18": "10.35.207.208",
+      "kavlan-2": "192.168.209.78",
+      "kavlan-20": "10.43.207.208",
+      "kavlan-21": "10.47.207.208",
+      "kavlan-3": "192.168.225.78",
+      "kavlan-4": "10.16.1.78",
+      "kavlan-5": "10.16.65.78",
+      "kavlan-6": "10.16.129.78",
+      "kavlan-7": "10.16.193.78",
+      "kavlan-8": "10.17.1.78",
+      "kavlan-9": "10.17.65.78"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.78",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:4e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:4f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
index 93b6aea189d33a3964d98579edb4d3674427d836..a8fd1acfdcea0694077e6113f8807f2ad8a47953 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CQ9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.79",
+      "kavlan-11": "10.7.207.79",
+      "kavlan-12": "10.11.207.79",
+      "kavlan-13": "10.15.207.79",
+      "kavlan-14": "10.19.207.79",
+      "kavlan-16": "10.27.207.79",
+      "kavlan-18": "10.35.207.79",
+      "kavlan-2": "192.168.208.79",
+      "kavlan-20": "10.43.207.79",
+      "kavlan-21": "10.47.207.79",
+      "kavlan-3": "192.168.224.79",
+      "kavlan-4": "10.16.0.79",
+      "kavlan-5": "10.16.64.79",
+      "kavlan-6": "10.16.128.79",
+      "kavlan-7": "10.16.192.79",
+      "kavlan-8": "10.17.0.79",
+      "kavlan-9": "10.17.64.79"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.79",
+      "kavlan-11": "10.7.207.209",
+      "kavlan-12": "10.11.207.209",
+      "kavlan-13": "10.15.207.209",
+      "kavlan-14": "10.19.207.209",
+      "kavlan-16": "10.27.207.209",
+      "kavlan-18": "10.35.207.209",
+      "kavlan-2": "192.168.209.79",
+      "kavlan-20": "10.43.207.209",
+      "kavlan-21": "10.47.207.209",
+      "kavlan-3": "192.168.225.79",
+      "kavlan-4": "10.16.1.79",
+      "kavlan-5": "10.16.65.79",
+      "kavlan-6": "10.16.129.79",
+      "kavlan-7": "10.16.193.79",
+      "kavlan-8": "10.17.1.79",
+      "kavlan-9": "10.17.65.79"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.79",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:be:de",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:be:df",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
index 6d675e8dc3da70840f6041946bd15ad033fb198f..54e246f4e2d7595ebaf6123171b46d5c5e2a09ed 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "BTCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.8",
+      "kavlan-11": "10.7.207.8",
+      "kavlan-12": "10.11.207.8",
+      "kavlan-13": "10.15.207.8",
+      "kavlan-14": "10.19.207.8",
+      "kavlan-16": "10.27.207.8",
+      "kavlan-18": "10.35.207.8",
+      "kavlan-2": "192.168.208.8",
+      "kavlan-20": "10.43.207.8",
+      "kavlan-21": "10.47.207.8",
+      "kavlan-3": "192.168.224.8",
+      "kavlan-4": "10.16.0.8",
+      "kavlan-5": "10.16.64.8",
+      "kavlan-6": "10.16.128.8",
+      "kavlan-7": "10.16.192.8",
+      "kavlan-8": "10.17.0.8",
+      "kavlan-9": "10.17.64.8"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.8",
+      "kavlan-11": "10.7.207.138",
+      "kavlan-12": "10.11.207.138",
+      "kavlan-13": "10.15.207.138",
+      "kavlan-14": "10.19.207.138",
+      "kavlan-16": "10.27.207.138",
+      "kavlan-18": "10.35.207.138",
+      "kavlan-2": "192.168.209.8",
+      "kavlan-20": "10.43.207.138",
+      "kavlan-21": "10.47.207.138",
+      "kavlan-3": "192.168.225.8",
+      "kavlan-4": "10.16.1.8",
+      "kavlan-5": "10.16.65.8",
+      "kavlan-6": "10.16.129.8",
+      "kavlan-7": "10.16.193.8",
+      "kavlan-8": "10.17.1.8",
+      "kavlan-9": "10.17.65.8"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.8",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:0e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c1:0f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
index 61d0667ff4884d571b2ea946713a5244710d2d38..2c3fddaf82ce9fc4c2cf1b49c58815cf4307bfea 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "FQ9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.80",
+      "kavlan-11": "10.7.207.80",
+      "kavlan-12": "10.11.207.80",
+      "kavlan-13": "10.15.207.80",
+      "kavlan-14": "10.19.207.80",
+      "kavlan-16": "10.27.207.80",
+      "kavlan-18": "10.35.207.80",
+      "kavlan-2": "192.168.208.80",
+      "kavlan-20": "10.43.207.80",
+      "kavlan-21": "10.47.207.80",
+      "kavlan-3": "192.168.224.80",
+      "kavlan-4": "10.16.0.80",
+      "kavlan-5": "10.16.64.80",
+      "kavlan-6": "10.16.128.80",
+      "kavlan-7": "10.16.192.80",
+      "kavlan-8": "10.17.0.80",
+      "kavlan-9": "10.17.64.80"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.80",
+      "kavlan-11": "10.7.207.210",
+      "kavlan-12": "10.11.207.210",
+      "kavlan-13": "10.15.207.210",
+      "kavlan-14": "10.19.207.210",
+      "kavlan-16": "10.27.207.210",
+      "kavlan-18": "10.35.207.210",
+      "kavlan-2": "192.168.209.80",
+      "kavlan-20": "10.43.207.210",
+      "kavlan-21": "10.47.207.210",
+      "kavlan-3": "192.168.225.80",
+      "kavlan-4": "10.16.1.80",
+      "kavlan-5": "10.16.65.80",
+      "kavlan-6": "10.16.129.80",
+      "kavlan-7": "10.16.193.80",
+      "kavlan-8": "10.17.1.80",
+      "kavlan-9": "10.17.65.80"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.80",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:86",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bf:87",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
index 08172228d61f9fb866bb82156f84d72acf934313..6c8f4e8faf9ad128e22be480f7b3e84722875044 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GQ9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.81",
+      "kavlan-11": "10.7.207.81",
+      "kavlan-12": "10.11.207.81",
+      "kavlan-13": "10.15.207.81",
+      "kavlan-14": "10.19.207.81",
+      "kavlan-16": "10.27.207.81",
+      "kavlan-18": "10.35.207.81",
+      "kavlan-2": "192.168.208.81",
+      "kavlan-20": "10.43.207.81",
+      "kavlan-21": "10.47.207.81",
+      "kavlan-3": "192.168.224.81",
+      "kavlan-4": "10.16.0.81",
+      "kavlan-5": "10.16.64.81",
+      "kavlan-6": "10.16.128.81",
+      "kavlan-7": "10.16.192.81",
+      "kavlan-8": "10.17.0.81",
+      "kavlan-9": "10.17.64.81"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.81",
+      "kavlan-11": "10.7.207.211",
+      "kavlan-12": "10.11.207.211",
+      "kavlan-13": "10.15.207.211",
+      "kavlan-14": "10.19.207.211",
+      "kavlan-16": "10.27.207.211",
+      "kavlan-18": "10.35.207.211",
+      "kavlan-2": "192.168.209.81",
+      "kavlan-20": "10.43.207.211",
+      "kavlan-21": "10.47.207.211",
+      "kavlan-3": "192.168.225.81",
+      "kavlan-4": "10.16.1.81",
+      "kavlan-5": "10.16.65.81",
+      "kavlan-6": "10.16.129.81",
+      "kavlan-7": "10.16.193.81",
+      "kavlan-8": "10.17.1.81",
+      "kavlan-9": "10.17.65.81"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.81",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9d:4a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9d:4b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
index 4eebb23fc97b0257d6f2195c06e28352023982f5..13a573ca8061411c79b685a35d511165faa2d0a7 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JQ9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.82",
+      "kavlan-11": "10.7.207.82",
+      "kavlan-12": "10.11.207.82",
+      "kavlan-13": "10.15.207.82",
+      "kavlan-14": "10.19.207.82",
+      "kavlan-16": "10.27.207.82",
+      "kavlan-18": "10.35.207.82",
+      "kavlan-2": "192.168.208.82",
+      "kavlan-20": "10.43.207.82",
+      "kavlan-21": "10.47.207.82",
+      "kavlan-3": "192.168.224.82",
+      "kavlan-4": "10.16.0.82",
+      "kavlan-5": "10.16.64.82",
+      "kavlan-6": "10.16.128.82",
+      "kavlan-7": "10.16.192.82",
+      "kavlan-8": "10.17.0.82",
+      "kavlan-9": "10.17.64.82"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.82",
+      "kavlan-11": "10.7.207.212",
+      "kavlan-12": "10.11.207.212",
+      "kavlan-13": "10.15.207.212",
+      "kavlan-14": "10.19.207.212",
+      "kavlan-16": "10.27.207.212",
+      "kavlan-18": "10.35.207.212",
+      "kavlan-2": "192.168.209.82",
+      "kavlan-20": "10.43.207.212",
+      "kavlan-21": "10.47.207.212",
+      "kavlan-3": "192.168.225.82",
+      "kavlan-4": "10.16.1.82",
+      "kavlan-5": "10.16.65.82",
+      "kavlan-6": "10.16.129.82",
+      "kavlan-7": "10.16.193.82",
+      "kavlan-8": "10.17.1.82",
+      "kavlan-9": "10.17.65.82"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.82",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:99:6a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:99:6b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
index 50554d9aaffc2883826a23afb4ae6fa46fb9942c..611819ac272e31e08a5f216d866c27eb01160615 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.83",
+      "kavlan-11": "10.7.207.83",
+      "kavlan-12": "10.11.207.83",
+      "kavlan-13": "10.15.207.83",
+      "kavlan-14": "10.19.207.83",
+      "kavlan-16": "10.27.207.83",
+      "kavlan-18": "10.35.207.83",
+      "kavlan-2": "192.168.208.83",
+      "kavlan-20": "10.43.207.83",
+      "kavlan-21": "10.47.207.83",
+      "kavlan-3": "192.168.224.83",
+      "kavlan-4": "10.16.0.83",
+      "kavlan-5": "10.16.64.83",
+      "kavlan-6": "10.16.128.83",
+      "kavlan-7": "10.16.192.83",
+      "kavlan-8": "10.17.0.83",
+      "kavlan-9": "10.17.64.83"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.83",
+      "kavlan-11": "10.7.207.213",
+      "kavlan-12": "10.11.207.213",
+      "kavlan-13": "10.15.207.213",
+      "kavlan-14": "10.19.207.213",
+      "kavlan-16": "10.27.207.213",
+      "kavlan-18": "10.35.207.213",
+      "kavlan-2": "192.168.209.83",
+      "kavlan-20": "10.43.207.213",
+      "kavlan-21": "10.47.207.213",
+      "kavlan-3": "192.168.225.83",
+      "kavlan-4": "10.16.1.83",
+      "kavlan-5": "10.16.65.83",
+      "kavlan-6": "10.16.129.83",
+      "kavlan-7": "10.16.193.83",
+      "kavlan-8": "10.17.1.83",
+      "kavlan-9": "10.17.65.83"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.83",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ba:7e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ba:7f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
index 790e822c901ff8207334d5974d5e147bd617a6f2..11d8b7caf136a837fa6a093c21a4bef6cf8d7b9e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1SCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.84",
+      "kavlan-11": "10.7.207.84",
+      "kavlan-12": "10.11.207.84",
+      "kavlan-13": "10.15.207.84",
+      "kavlan-14": "10.19.207.84",
+      "kavlan-16": "10.27.207.84",
+      "kavlan-18": "10.35.207.84",
+      "kavlan-2": "192.168.208.84",
+      "kavlan-20": "10.43.207.84",
+      "kavlan-21": "10.47.207.84",
+      "kavlan-3": "192.168.224.84",
+      "kavlan-4": "10.16.0.84",
+      "kavlan-5": "10.16.64.84",
+      "kavlan-6": "10.16.128.84",
+      "kavlan-7": "10.16.192.84",
+      "kavlan-8": "10.17.0.84",
+      "kavlan-9": "10.17.64.84"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.84",
+      "kavlan-11": "10.7.207.214",
+      "kavlan-12": "10.11.207.214",
+      "kavlan-13": "10.15.207.214",
+      "kavlan-14": "10.19.207.214",
+      "kavlan-16": "10.27.207.214",
+      "kavlan-18": "10.35.207.214",
+      "kavlan-2": "192.168.209.84",
+      "kavlan-20": "10.43.207.214",
+      "kavlan-21": "10.47.207.214",
+      "kavlan-3": "192.168.225.84",
+      "kavlan-4": "10.16.1.84",
+      "kavlan-5": "10.16.65.84",
+      "kavlan-6": "10.16.129.84",
+      "kavlan-7": "10.16.193.84",
+      "kavlan-8": "10.17.1.84",
+      "kavlan-9": "10.17.65.84"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.84",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a9:6e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a9:6f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
index a18ff7cdca6f7d044afa6727c10205f8cf05f52d..c2c70e58321810b461422321329a665160939916 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.85",
+      "kavlan-11": "10.7.207.85",
+      "kavlan-12": "10.11.207.85",
+      "kavlan-13": "10.15.207.85",
+      "kavlan-14": "10.19.207.85",
+      "kavlan-16": "10.27.207.85",
+      "kavlan-18": "10.35.207.85",
+      "kavlan-2": "192.168.208.85",
+      "kavlan-20": "10.43.207.85",
+      "kavlan-21": "10.47.207.85",
+      "kavlan-3": "192.168.224.85",
+      "kavlan-4": "10.16.0.85",
+      "kavlan-5": "10.16.64.85",
+      "kavlan-6": "10.16.128.85",
+      "kavlan-7": "10.16.192.85",
+      "kavlan-8": "10.17.0.85",
+      "kavlan-9": "10.17.64.85"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.85",
+      "kavlan-11": "10.7.207.215",
+      "kavlan-12": "10.11.207.215",
+      "kavlan-13": "10.15.207.215",
+      "kavlan-14": "10.19.207.215",
+      "kavlan-16": "10.27.207.215",
+      "kavlan-18": "10.35.207.215",
+      "kavlan-2": "192.168.209.85",
+      "kavlan-20": "10.43.207.215",
+      "kavlan-21": "10.47.207.215",
+      "kavlan-3": "192.168.225.85",
+      "kavlan-4": "10.16.1.85",
+      "kavlan-5": "10.16.65.85",
+      "kavlan-6": "10.16.129.85",
+      "kavlan-7": "10.16.193.85",
+      "kavlan-8": "10.17.1.85",
+      "kavlan-9": "10.17.65.85"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.85",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d0:0e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:d0:0f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
index 7816de38dd1a53e496353e2e1b2dc05289ed1c15..15d8713e8ead9600d73c560a90940d50dc6a7e5d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.86",
+      "kavlan-11": "10.7.207.86",
+      "kavlan-12": "10.11.207.86",
+      "kavlan-13": "10.15.207.86",
+      "kavlan-14": "10.19.207.86",
+      "kavlan-16": "10.27.207.86",
+      "kavlan-18": "10.35.207.86",
+      "kavlan-2": "192.168.208.86",
+      "kavlan-20": "10.43.207.86",
+      "kavlan-21": "10.47.207.86",
+      "kavlan-3": "192.168.224.86",
+      "kavlan-4": "10.16.0.86",
+      "kavlan-5": "10.16.64.86",
+      "kavlan-6": "10.16.128.86",
+      "kavlan-7": "10.16.192.86",
+      "kavlan-8": "10.17.0.86",
+      "kavlan-9": "10.17.64.86"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.86",
+      "kavlan-11": "10.7.207.216",
+      "kavlan-12": "10.11.207.216",
+      "kavlan-13": "10.15.207.216",
+      "kavlan-14": "10.19.207.216",
+      "kavlan-16": "10.27.207.216",
+      "kavlan-18": "10.35.207.216",
+      "kavlan-2": "192.168.209.86",
+      "kavlan-20": "10.43.207.216",
+      "kavlan-21": "10.47.207.216",
+      "kavlan-3": "192.168.225.86",
+      "kavlan-4": "10.16.1.86",
+      "kavlan-5": "10.16.65.86",
+      "kavlan-6": "10.16.129.86",
+      "kavlan-7": "10.16.193.86",
+      "kavlan-8": "10.17.1.86",
+      "kavlan-9": "10.17.65.86"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.86",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cf:e6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:cf:e7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
index 782f39f41b1b168e6afbb1692b7ce174f1216294..3b14c634e072d769f8dcfc43b6a255ea60efdc96 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.87",
+      "kavlan-11": "10.7.207.87",
+      "kavlan-12": "10.11.207.87",
+      "kavlan-13": "10.15.207.87",
+      "kavlan-14": "10.19.207.87",
+      "kavlan-16": "10.27.207.87",
+      "kavlan-18": "10.35.207.87",
+      "kavlan-2": "192.168.208.87",
+      "kavlan-20": "10.43.207.87",
+      "kavlan-21": "10.47.207.87",
+      "kavlan-3": "192.168.224.87",
+      "kavlan-4": "10.16.0.87",
+      "kavlan-5": "10.16.64.87",
+      "kavlan-6": "10.16.128.87",
+      "kavlan-7": "10.16.192.87",
+      "kavlan-8": "10.17.0.87",
+      "kavlan-9": "10.17.64.87"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.87",
+      "kavlan-11": "10.7.207.217",
+      "kavlan-12": "10.11.207.217",
+      "kavlan-13": "10.15.207.217",
+      "kavlan-14": "10.19.207.217",
+      "kavlan-16": "10.27.207.217",
+      "kavlan-18": "10.35.207.217",
+      "kavlan-2": "192.168.209.87",
+      "kavlan-20": "10.43.207.217",
+      "kavlan-21": "10.47.207.217",
+      "kavlan-3": "192.168.225.87",
+      "kavlan-4": "10.16.1.87",
+      "kavlan-5": "10.16.65.87",
+      "kavlan-6": "10.16.129.87",
+      "kavlan-7": "10.16.193.87",
+      "kavlan-8": "10.17.1.87",
+      "kavlan-9": "10.17.65.87"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.87",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:06",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:c6:07",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
index 418fadb19a00cb3d49233e579d8c79abf64fd86c..107af59c2c1df9e1f6a32562c6988f0296f8b3d6 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "4XCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.88",
+      "kavlan-11": "10.7.207.88",
+      "kavlan-12": "10.11.207.88",
+      "kavlan-13": "10.15.207.88",
+      "kavlan-14": "10.19.207.88",
+      "kavlan-16": "10.27.207.88",
+      "kavlan-18": "10.35.207.88",
+      "kavlan-2": "192.168.208.88",
+      "kavlan-20": "10.43.207.88",
+      "kavlan-21": "10.47.207.88",
+      "kavlan-3": "192.168.224.88",
+      "kavlan-4": "10.16.0.88",
+      "kavlan-5": "10.16.64.88",
+      "kavlan-6": "10.16.128.88",
+      "kavlan-7": "10.16.192.88",
+      "kavlan-8": "10.17.0.88",
+      "kavlan-9": "10.17.64.88"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.88",
+      "kavlan-11": "10.7.207.218",
+      "kavlan-12": "10.11.207.218",
+      "kavlan-13": "10.15.207.218",
+      "kavlan-14": "10.19.207.218",
+      "kavlan-16": "10.27.207.218",
+      "kavlan-18": "10.35.207.218",
+      "kavlan-2": "192.168.209.88",
+      "kavlan-20": "10.43.207.218",
+      "kavlan-21": "10.47.207.218",
+      "kavlan-3": "192.168.225.88",
+      "kavlan-4": "10.16.1.88",
+      "kavlan-5": "10.16.65.88",
+      "kavlan-6": "10.16.129.88",
+      "kavlan-7": "10.16.193.88",
+      "kavlan-8": "10.17.1.88",
+      "kavlan-9": "10.17.65.88"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.88",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ba:de",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ba:df",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
index fd81009603431e11dba24d1dceaa1e363b15b3f8..3db265814edb413bb686dd19419328e8f1705812 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "8N9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.89",
+      "kavlan-11": "10.7.207.89",
+      "kavlan-12": "10.11.207.89",
+      "kavlan-13": "10.15.207.89",
+      "kavlan-14": "10.19.207.89",
+      "kavlan-16": "10.27.207.89",
+      "kavlan-18": "10.35.207.89",
+      "kavlan-2": "192.168.208.89",
+      "kavlan-20": "10.43.207.89",
+      "kavlan-21": "10.47.207.89",
+      "kavlan-3": "192.168.224.89",
+      "kavlan-4": "10.16.0.89",
+      "kavlan-5": "10.16.64.89",
+      "kavlan-6": "10.16.128.89",
+      "kavlan-7": "10.16.192.89",
+      "kavlan-8": "10.17.0.89",
+      "kavlan-9": "10.17.64.89"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.89",
+      "kavlan-11": "10.7.207.219",
+      "kavlan-12": "10.11.207.219",
+      "kavlan-13": "10.15.207.219",
+      "kavlan-14": "10.19.207.219",
+      "kavlan-16": "10.27.207.219",
+      "kavlan-18": "10.35.207.219",
+      "kavlan-2": "192.168.209.89",
+      "kavlan-20": "10.43.207.219",
+      "kavlan-21": "10.47.207.219",
+      "kavlan-3": "192.168.225.89",
+      "kavlan-4": "10.16.1.89",
+      "kavlan-5": "10.16.65.89",
+      "kavlan-6": "10.16.129.89",
+      "kavlan-7": "10.16.193.89",
+      "kavlan-8": "10.17.1.89",
+      "kavlan-9": "10.17.65.89"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.89",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9b:82",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9b:83",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
index 62a63a5614d33d5b5bcbcdac3c9043497a6d0976..a8749afe2e05168276178b4c022a1c17b0a55ad0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "2Q9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.9",
+      "kavlan-11": "10.7.207.9",
+      "kavlan-12": "10.11.207.9",
+      "kavlan-13": "10.15.207.9",
+      "kavlan-14": "10.19.207.9",
+      "kavlan-16": "10.27.207.9",
+      "kavlan-18": "10.35.207.9",
+      "kavlan-2": "192.168.208.9",
+      "kavlan-20": "10.43.207.9",
+      "kavlan-21": "10.47.207.9",
+      "kavlan-3": "192.168.224.9",
+      "kavlan-4": "10.16.0.9",
+      "kavlan-5": "10.16.64.9",
+      "kavlan-6": "10.16.128.9",
+      "kavlan-7": "10.16.192.9",
+      "kavlan-8": "10.17.0.9",
+      "kavlan-9": "10.17.64.9"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.9",
+      "kavlan-11": "10.7.207.139",
+      "kavlan-12": "10.11.207.139",
+      "kavlan-13": "10.15.207.139",
+      "kavlan-14": "10.19.207.139",
+      "kavlan-16": "10.27.207.139",
+      "kavlan-18": "10.35.207.139",
+      "kavlan-2": "192.168.209.9",
+      "kavlan-20": "10.43.207.139",
+      "kavlan-21": "10.47.207.139",
+      "kavlan-3": "192.168.225.9",
+      "kavlan-4": "10.16.1.9",
+      "kavlan-5": "10.16.65.9",
+      "kavlan-6": "10.16.129.9",
+      "kavlan-7": "10.16.193.9",
+      "kavlan-8": "10.17.1.9",
+      "kavlan-9": "10.17.65.9"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.9",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:12",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:98:13",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
index b00eca99a0f5429148b69e6b1eeb7177aabe9f82..0868bbcea3aca39907f6b1cd39e4bc90bc087c6b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DN9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.90",
+      "kavlan-11": "10.7.207.90",
+      "kavlan-12": "10.11.207.90",
+      "kavlan-13": "10.15.207.90",
+      "kavlan-14": "10.19.207.90",
+      "kavlan-16": "10.27.207.90",
+      "kavlan-18": "10.35.207.90",
+      "kavlan-2": "192.168.208.90",
+      "kavlan-20": "10.43.207.90",
+      "kavlan-21": "10.47.207.90",
+      "kavlan-3": "192.168.224.90",
+      "kavlan-4": "10.16.0.90",
+      "kavlan-5": "10.16.64.90",
+      "kavlan-6": "10.16.128.90",
+      "kavlan-7": "10.16.192.90",
+      "kavlan-8": "10.17.0.90",
+      "kavlan-9": "10.17.64.90"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.90",
+      "kavlan-11": "10.7.207.220",
+      "kavlan-12": "10.11.207.220",
+      "kavlan-13": "10.15.207.220",
+      "kavlan-14": "10.19.207.220",
+      "kavlan-16": "10.27.207.220",
+      "kavlan-18": "10.35.207.220",
+      "kavlan-2": "192.168.209.90",
+      "kavlan-20": "10.43.207.220",
+      "kavlan-21": "10.47.207.220",
+      "kavlan-3": "192.168.225.90",
+      "kavlan-4": "10.16.1.90",
+      "kavlan-5": "10.16.65.90",
+      "kavlan-6": "10.16.129.90",
+      "kavlan-7": "10.16.193.90",
+      "kavlan-8": "10.17.1.90",
+      "kavlan-9": "10.17.65.90"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.90",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9c:ba",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9c:bb",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
index 896fa04094cfbe034b0a50a161e45e73bd62faf6..0fbc77b4cc7a24c5bccf16c9c3a9eadd92bb0474 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "JN9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.91",
+      "kavlan-11": "10.7.207.91",
+      "kavlan-12": "10.11.207.91",
+      "kavlan-13": "10.15.207.91",
+      "kavlan-14": "10.19.207.91",
+      "kavlan-16": "10.27.207.91",
+      "kavlan-18": "10.35.207.91",
+      "kavlan-2": "192.168.208.91",
+      "kavlan-20": "10.43.207.91",
+      "kavlan-21": "10.47.207.91",
+      "kavlan-3": "192.168.224.91",
+      "kavlan-4": "10.16.0.91",
+      "kavlan-5": "10.16.64.91",
+      "kavlan-6": "10.16.128.91",
+      "kavlan-7": "10.16.192.91",
+      "kavlan-8": "10.17.0.91",
+      "kavlan-9": "10.17.64.91"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.91",
+      "kavlan-11": "10.7.207.221",
+      "kavlan-12": "10.11.207.221",
+      "kavlan-13": "10.15.207.221",
+      "kavlan-14": "10.19.207.221",
+      "kavlan-16": "10.27.207.221",
+      "kavlan-18": "10.35.207.221",
+      "kavlan-2": "192.168.209.91",
+      "kavlan-20": "10.43.207.221",
+      "kavlan-21": "10.47.207.221",
+      "kavlan-3": "192.168.225.91",
+      "kavlan-4": "10.16.1.91",
+      "kavlan-5": "10.16.65.91",
+      "kavlan-6": "10.16.129.91",
+      "kavlan-7": "10.16.193.91",
+      "kavlan-8": "10.17.1.91",
+      "kavlan-9": "10.17.65.91"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.91",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:42",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:43",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
index 497ed139b5ea4b88cb2b8296ba22a9fb200d8065..d10f8b79ffdbd9a99626be25e8cac88d50091fce 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "GRCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.92",
+      "kavlan-11": "10.7.207.92",
+      "kavlan-12": "10.11.207.92",
+      "kavlan-13": "10.15.207.92",
+      "kavlan-14": "10.19.207.92",
+      "kavlan-16": "10.27.207.92",
+      "kavlan-18": "10.35.207.92",
+      "kavlan-2": "192.168.208.92",
+      "kavlan-20": "10.43.207.92",
+      "kavlan-21": "10.47.207.92",
+      "kavlan-3": "192.168.224.92",
+      "kavlan-4": "10.16.0.92",
+      "kavlan-5": "10.16.64.92",
+      "kavlan-6": "10.16.128.92",
+      "kavlan-7": "10.16.192.92",
+      "kavlan-8": "10.17.0.92",
+      "kavlan-9": "10.17.64.92"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.92",
+      "kavlan-11": "10.7.207.222",
+      "kavlan-12": "10.11.207.222",
+      "kavlan-13": "10.15.207.222",
+      "kavlan-14": "10.19.207.222",
+      "kavlan-16": "10.27.207.222",
+      "kavlan-18": "10.35.207.222",
+      "kavlan-2": "192.168.209.92",
+      "kavlan-20": "10.43.207.222",
+      "kavlan-21": "10.47.207.222",
+      "kavlan-3": "192.168.225.92",
+      "kavlan-4": "10.16.1.92",
+      "kavlan-5": "10.16.65.92",
+      "kavlan-6": "10.16.129.92",
+      "kavlan-7": "10.16.193.92",
+      "kavlan-8": "10.17.1.92",
+      "kavlan-9": "10.17.65.92"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.92",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:2e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:2f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
index 1dbf854763a02ffc7f12c21828539be28b85b368..1a6dabdf91c503e58396b74e2efc40e1a4ee3ddc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CRCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.93",
+      "kavlan-11": "10.7.207.93",
+      "kavlan-12": "10.11.207.93",
+      "kavlan-13": "10.15.207.93",
+      "kavlan-14": "10.19.207.93",
+      "kavlan-16": "10.27.207.93",
+      "kavlan-18": "10.35.207.93",
+      "kavlan-2": "192.168.208.93",
+      "kavlan-20": "10.43.207.93",
+      "kavlan-21": "10.47.207.93",
+      "kavlan-3": "192.168.224.93",
+      "kavlan-4": "10.16.0.93",
+      "kavlan-5": "10.16.64.93",
+      "kavlan-6": "10.16.128.93",
+      "kavlan-7": "10.16.192.93",
+      "kavlan-8": "10.17.0.93",
+      "kavlan-9": "10.17.64.93"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.93",
+      "kavlan-11": "10.7.207.223",
+      "kavlan-12": "10.11.207.223",
+      "kavlan-13": "10.15.207.223",
+      "kavlan-14": "10.19.207.223",
+      "kavlan-16": "10.27.207.223",
+      "kavlan-18": "10.35.207.223",
+      "kavlan-2": "192.168.209.93",
+      "kavlan-20": "10.43.207.223",
+      "kavlan-21": "10.47.207.223",
+      "kavlan-3": "192.168.225.93",
+      "kavlan-4": "10.16.1.93",
+      "kavlan-5": "10.16.65.93",
+      "kavlan-6": "10.16.129.93",
+      "kavlan-7": "10.16.193.93",
+      "kavlan-8": "10.17.1.93",
+      "kavlan-9": "10.17.65.93"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.93",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:26",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:bb:27",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
index 6ad7fc3ed66fb6ae202d7588ff91efd9f46f1eca..e123414b2c3fdd1233884ea58f44f670d12b7e9e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "DRCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.94",
+      "kavlan-11": "10.7.207.94",
+      "kavlan-12": "10.11.207.94",
+      "kavlan-13": "10.15.207.94",
+      "kavlan-14": "10.19.207.94",
+      "kavlan-16": "10.27.207.94",
+      "kavlan-18": "10.35.207.94",
+      "kavlan-2": "192.168.208.94",
+      "kavlan-20": "10.43.207.94",
+      "kavlan-21": "10.47.207.94",
+      "kavlan-3": "192.168.224.94",
+      "kavlan-4": "10.16.0.94",
+      "kavlan-5": "10.16.64.94",
+      "kavlan-6": "10.16.128.94",
+      "kavlan-7": "10.16.192.94",
+      "kavlan-8": "10.17.0.94",
+      "kavlan-9": "10.17.64.94"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.94",
+      "kavlan-11": "10.7.207.224",
+      "kavlan-12": "10.11.207.224",
+      "kavlan-13": "10.15.207.224",
+      "kavlan-14": "10.19.207.224",
+      "kavlan-16": "10.27.207.224",
+      "kavlan-18": "10.35.207.224",
+      "kavlan-2": "192.168.209.94",
+      "kavlan-20": "10.43.207.224",
+      "kavlan-21": "10.47.207.224",
+      "kavlan-3": "192.168.225.94",
+      "kavlan-4": "10.16.1.94",
+      "kavlan-5": "10.16.65.94",
+      "kavlan-6": "10.16.129.94",
+      "kavlan-7": "10.16.193.94",
+      "kavlan-8": "10.17.1.94",
+      "kavlan-9": "10.17.65.94"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.94",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b0:a6",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:b0:a7",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
index 704f5f77cbfcedf81e5b169608748190a523a95c..a7c490dcc7d357012a154c9811de5a6d01dfe68a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "1P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.95",
+      "kavlan-11": "10.7.207.95",
+      "kavlan-12": "10.11.207.95",
+      "kavlan-13": "10.15.207.95",
+      "kavlan-14": "10.19.207.95",
+      "kavlan-16": "10.27.207.95",
+      "kavlan-18": "10.35.207.95",
+      "kavlan-2": "192.168.208.95",
+      "kavlan-20": "10.43.207.95",
+      "kavlan-21": "10.47.207.95",
+      "kavlan-3": "192.168.224.95",
+      "kavlan-4": "10.16.0.95",
+      "kavlan-5": "10.16.64.95",
+      "kavlan-6": "10.16.128.95",
+      "kavlan-7": "10.16.192.95",
+      "kavlan-8": "10.17.0.95",
+      "kavlan-9": "10.17.64.95"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.95",
+      "kavlan-11": "10.7.207.225",
+      "kavlan-12": "10.11.207.225",
+      "kavlan-13": "10.15.207.225",
+      "kavlan-14": "10.19.207.225",
+      "kavlan-16": "10.27.207.225",
+      "kavlan-18": "10.35.207.225",
+      "kavlan-2": "192.168.209.95",
+      "kavlan-20": "10.43.207.225",
+      "kavlan-21": "10.47.207.225",
+      "kavlan-3": "192.168.225.95",
+      "kavlan-4": "10.16.1.95",
+      "kavlan-5": "10.16.65.95",
+      "kavlan-6": "10.16.129.95",
+      "kavlan-7": "10.16.193.95",
+      "kavlan-8": "10.17.1.95",
+      "kavlan-9": "10.17.65.95"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.95",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:6b:2a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:6b:2b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
index daa98ece280ff0bff0903f7f06688668da1a013c..7bc4e06078c92995c3f8429ef1a3a362a8f7bad5 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "CN9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.96",
+      "kavlan-11": "10.7.207.96",
+      "kavlan-12": "10.11.207.96",
+      "kavlan-13": "10.15.207.96",
+      "kavlan-14": "10.19.207.96",
+      "kavlan-16": "10.27.207.96",
+      "kavlan-18": "10.35.207.96",
+      "kavlan-2": "192.168.208.96",
+      "kavlan-20": "10.43.207.96",
+      "kavlan-21": "10.47.207.96",
+      "kavlan-3": "192.168.224.96",
+      "kavlan-4": "10.16.0.96",
+      "kavlan-5": "10.16.64.96",
+      "kavlan-6": "10.16.128.96",
+      "kavlan-7": "10.16.192.96",
+      "kavlan-8": "10.17.0.96",
+      "kavlan-9": "10.17.64.96"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.96",
+      "kavlan-11": "10.7.207.226",
+      "kavlan-12": "10.11.207.226",
+      "kavlan-13": "10.15.207.226",
+      "kavlan-14": "10.19.207.226",
+      "kavlan-16": "10.27.207.226",
+      "kavlan-18": "10.35.207.226",
+      "kavlan-2": "192.168.209.96",
+      "kavlan-20": "10.43.207.226",
+      "kavlan-21": "10.47.207.226",
+      "kavlan-3": "192.168.225.96",
+      "kavlan-4": "10.16.1.96",
+      "kavlan-5": "10.16.65.96",
+      "kavlan-6": "10.16.129.96",
+      "kavlan-7": "10.16.193.96",
+      "kavlan-8": "10.17.1.96",
+      "kavlan-9": "10.17.65.96"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.96",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:1a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:97:1b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
index d51c3e70eae43442399fd09778422480bf64ea79..6b74a6d9933605343e3a1771ba3f7f2b8e503cea 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7N9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.97",
+      "kavlan-11": "10.7.207.97",
+      "kavlan-12": "10.11.207.97",
+      "kavlan-13": "10.15.207.97",
+      "kavlan-14": "10.19.207.97",
+      "kavlan-16": "10.27.207.97",
+      "kavlan-18": "10.35.207.97",
+      "kavlan-2": "192.168.208.97",
+      "kavlan-20": "10.43.207.97",
+      "kavlan-21": "10.47.207.97",
+      "kavlan-3": "192.168.224.97",
+      "kavlan-4": "10.16.0.97",
+      "kavlan-5": "10.16.64.97",
+      "kavlan-6": "10.16.128.97",
+      "kavlan-7": "10.16.192.97",
+      "kavlan-8": "10.17.0.97",
+      "kavlan-9": "10.17.64.97"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.97",
+      "kavlan-11": "10.7.207.227",
+      "kavlan-12": "10.11.207.227",
+      "kavlan-13": "10.15.207.227",
+      "kavlan-14": "10.19.207.227",
+      "kavlan-16": "10.27.207.227",
+      "kavlan-18": "10.35.207.227",
+      "kavlan-2": "192.168.209.97",
+      "kavlan-20": "10.43.207.227",
+      "kavlan-21": "10.47.207.227",
+      "kavlan-3": "192.168.225.97",
+      "kavlan-4": "10.16.1.97",
+      "kavlan-5": "10.16.65.97",
+      "kavlan-6": "10.16.129.97",
+      "kavlan-7": "10.16.193.97",
+      "kavlan-8": "10.17.1.97",
+      "kavlan-9": "10.17.65.97"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.97",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9b:7a",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:9b:7b",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
index ab5e3601e7fe4b6a96c1c367574519911789b9d2..5f102227297e220475fbdba72467ef532fe67f18 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "9RCTGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.98",
+      "kavlan-11": "10.7.207.98",
+      "kavlan-12": "10.11.207.98",
+      "kavlan-13": "10.15.207.98",
+      "kavlan-14": "10.19.207.98",
+      "kavlan-16": "10.27.207.98",
+      "kavlan-18": "10.35.207.98",
+      "kavlan-2": "192.168.208.98",
+      "kavlan-20": "10.43.207.98",
+      "kavlan-21": "10.47.207.98",
+      "kavlan-3": "192.168.224.98",
+      "kavlan-4": "10.16.0.98",
+      "kavlan-5": "10.16.64.98",
+      "kavlan-6": "10.16.128.98",
+      "kavlan-7": "10.16.192.98",
+      "kavlan-8": "10.17.0.98",
+      "kavlan-9": "10.17.64.98"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.98",
+      "kavlan-11": "10.7.207.228",
+      "kavlan-12": "10.11.207.228",
+      "kavlan-13": "10.15.207.228",
+      "kavlan-14": "10.19.207.228",
+      "kavlan-16": "10.27.207.228",
+      "kavlan-18": "10.35.207.228",
+      "kavlan-2": "192.168.209.98",
+      "kavlan-20": "10.43.207.228",
+      "kavlan-21": "10.47.207.228",
+      "kavlan-3": "192.168.225.98",
+      "kavlan-4": "10.16.1.98",
+      "kavlan-5": "10.16.65.98",
+      "kavlan-6": "10.16.129.98",
+      "kavlan-7": "10.16.193.98",
+      "kavlan-8": "10.17.1.98",
+      "kavlan-9": "10.17.65.98"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.98",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:de",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:ac:df",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
index a8507b0bbbdfac7ae54418d6dbd88270253351ad..fcf7bf0cb2d26958f935d18eb3c4491b53d39744 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
@@ -15,6 +15,46 @@
     "name": "PowerEdge R640",
     "serial": "7P9TGY2"
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.192.99",
+      "kavlan-11": "10.7.207.99",
+      "kavlan-12": "10.11.207.99",
+      "kavlan-13": "10.15.207.99",
+      "kavlan-14": "10.19.207.99",
+      "kavlan-16": "10.27.207.99",
+      "kavlan-18": "10.35.207.99",
+      "kavlan-2": "192.168.208.99",
+      "kavlan-20": "10.43.207.99",
+      "kavlan-21": "10.47.207.99",
+      "kavlan-3": "192.168.224.99",
+      "kavlan-4": "10.16.0.99",
+      "kavlan-5": "10.16.64.99",
+      "kavlan-6": "10.16.128.99",
+      "kavlan-7": "10.16.192.99",
+      "kavlan-8": "10.17.0.99",
+      "kavlan-9": "10.17.64.99"
+    },
+    "eth1": {
+      "kavlan-1": "192.168.193.99",
+      "kavlan-11": "10.7.207.229",
+      "kavlan-12": "10.11.207.229",
+      "kavlan-13": "10.15.207.229",
+      "kavlan-14": "10.19.207.229",
+      "kavlan-16": "10.27.207.229",
+      "kavlan-18": "10.35.207.229",
+      "kavlan-2": "192.168.209.99",
+      "kavlan-20": "10.43.207.229",
+      "kavlan-21": "10.47.207.229",
+      "kavlan-3": "192.168.225.99",
+      "kavlan-4": "10.16.1.99",
+      "kavlan-5": "10.16.65.99",
+      "kavlan-6": "10.16.129.99",
+      "kavlan-7": "10.16.193.99",
+      "kavlan-8": "10.17.1.99",
+      "kavlan-9": "10.17.65.99"
+    }
+  },
   "main_memory": {
     "ram_size": 103079215104
   },
@@ -30,7 +70,7 @@
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.99",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:4e",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
@@ -50,7 +90,7 @@
       "enabled": true,
       "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "98:03:9b:b0:a7:4f",
       "management": false,
       "model": "MT27710 Family [ConnectX-4 Lx]",
diff --git a/input/grid5000/sites/nancy/clusters/gros/gros.yaml b/input/grid5000/sites/nancy/clusters/gros/gros.yaml
index 65cca33642b6ec670d0ebffcd5a6c90afae3fb41..403ae1220479fb33d5afcbdadf74b9cf0c639452 100644
--- a/input/grid5000/sites/nancy/clusters/gros/gros.yaml
+++ b/input/grid5000/sites/nancy/clusters/gros/gros.yaml
@@ -1,7 +1,7 @@
 ---
 model: Dell PowerEdge R640
 created_at: 2019-09-04
-kavlan: false
+kavlan: true
 queues:
   - admin
   - testing