diff --git a/data/grid5000/sites/rennes/clusters/abacus28/abacus28.json b/data/grid5000/sites/rennes/clusters/abacus28/abacus28.json
index 1757a3c94bf5a309152d551c4c5db4b2071fa9fb..4e433514e00d795f17618c0e9ba5545c5e994100 100644
--- a/data/grid5000/sites/rennes/clusters/abacus28/abacus28.json
+++ b/data/grid5000/sites/rennes/clusters/abacus28/abacus28.json
@@ -2,7 +2,7 @@
   "boot_type": "uefi",
   "created_at": "Wed, 05 Feb 2025 00:00:00 GMT",
   "exotic": false,
-  "kavlan": false,
+  "kavlan": true,
   "manufactured_at": "2020-12-05",
   "metrics": [
 
diff --git a/data/grid5000/sites/rennes/clusters/abacus28/nodes/abacus28-1.json b/data/grid5000/sites/rennes/clusters/abacus28/nodes/abacus28-1.json
index 7d4d1a66d4685fa05db5065acd7e3f3cb3395d68..0c395a715015e7e1a0ab207e014e7df15bedb98b 100644
--- a/data/grid5000/sites/rennes/clusters/abacus28/nodes/abacus28-1.json
+++ b/data/grid5000/sites/rennes/clusters/abacus28/nodes/abacus28-1.json
@@ -90,6 +90,50 @@
       "vendor": "Nvidia"
     }
   },
+  "kavlan": {
+    "eth0": {
+      "kavlan-1": "192.168.202.11",
+      "kavlan-11": "10.7.244.51",
+      "kavlan-12": "10.11.244.51",
+      "kavlan-13": "10.15.244.51",
+      "kavlan-14": "10.19.244.51",
+      "kavlan-16": "10.27.244.51",
+      "kavlan-17": "10.31.244.51",
+      "kavlan-18": "10.35.244.51",
+      "kavlan-2": "192.168.218.11",
+      "kavlan-20": "10.43.244.51",
+      "kavlan-21": "10.47.244.51",
+      "kavlan-3": "192.168.234.11",
+      "kavlan-4": "10.24.10.11",
+      "kavlan-5": "10.24.74.11",
+      "kavlan-6": "10.24.138.11",
+      "kavlan-7": "10.24.202.11",
+      "kavlan-8": "10.25.10.11",
+      "kavlan-9": "10.25.74.11"
+    }
+  },
+  "kavlan6": {
+    "eth0": {
+      "kavlan-1": "2001:660:4406:780:e::1f",
+      "kavlan-11": "2001:660:4406:1a0:70e::1f",
+      "kavlan-12": "2001:660:4406:2a0:70e::1f",
+      "kavlan-13": "2001:660:4406:4a0:70e::1f",
+      "kavlan-14": "2001:660:4406:5a0:70e::1f",
+      "kavlan-16": "2001:660:4406:7a0:70e::1f",
+      "kavlan-17": "2001:660:4406:9a0:70e::1f",
+      "kavlan-18": "2001:660:4406:8a0:70e::1f",
+      "kavlan-2": "2001:660:4406:781:e::1f",
+      "kavlan-20": "2001:660:4406:3a0:70e::1f",
+      "kavlan-21": "2001:660:4406:6a0:70e::1f",
+      "kavlan-3": "2001:660:4406:782:e::1f",
+      "kavlan-4": "2001:660:4406:790:e::1f",
+      "kavlan-5": "2001:660:4406:791:e::1f",
+      "kavlan-6": "2001:660:4406:792:e::1f",
+      "kavlan-7": "2001:660:4406:793:e::1f",
+      "kavlan-8": "2001:660:4406:794:e::1f",
+      "kavlan-9": "2001:660:4406:795:e::1f"
+    }
+  },
   "main_memory": {
     "ram_size": 412316860416
   },
@@ -170,7 +214,7 @@
       "interface": "Ethernet",
       "ip": "172.16.109.31",
       "ip6": "2001:660:4406:700:e::1f",
-      "kavlan": false,
+      "kavlan": true,
       "mac": "78:ac:44:15:dc:cc",
       "management": false,
       "model": "Ethernet Controller X710 for 10GbE SFP+",
@@ -181,8 +225,8 @@
       "rate": 10000000000,
       "sriov": false,
       "sriov_totalvfs": 0,
-      "switch": null,
-      "switch_port": null,
+      "switch": "sw-1-c003",
+      "switch_port": "ethernet1/1/15",
       "vendor": "Intel"
     },
     {
diff --git a/data/grid5000/sites/rennes/network_equipments/sw-1-c003.json b/data/grid5000/sites/rennes/network_equipments/sw-1-c003.json
index 2adb1d3abf20b648f1cdda769571b49af8f8d05d..15951c93d8b1202576853fde18be71112765c4a1 100644
--- a/data/grid5000/sites/rennes/network_equipments/sw-1-c003.json
+++ b/data/grid5000/sites/rennes/network_equipments/sw-1-c003.json
@@ -95,6 +95,10 @@
           "uid": "roazhon8-3"
         },
         {
+          "kind": "node",
+          "port": "eth0",
+          "snmp_name": "ethernet1/1/15",
+          "uid": "abacus28-1"
         },
         {
           "kind": "node",
diff --git a/input/grid5000/sites/rennes/clusters/abacus28/abacus28.yaml b/input/grid5000/sites/rennes/clusters/abacus28/abacus28.yaml
index 06be01775955d139b361707edab5469c6d69ac68..c2ff5dbb2e5f1e73d412c38fe4d71cb961d5fda4 100644
--- a/input/grid5000/sites/rennes/clusters/abacus28/abacus28.yaml
+++ b/input/grid5000/sites/rennes/clusters/abacus28/abacus28.yaml
@@ -1,7 +1,7 @@
 ---
 model: Dell PowerEdge C4140
 created_at: 2025-02-05
-kavlan: false
+kavlan: true
 boot_type: uefi
 exotic: false
 queues:
diff --git a/input/grid5000/sites/rennes/networks/sw-1-c003.yaml b/input/grid5000/sites/rennes/networks/sw-1-c003.yaml
index 629594f79edf99ea1113247a8b1e761327cb58ef..3cccc62d33d40eccb2ab7bc42cb376687a6c1743 100644
--- a/input/grid5000/sites/rennes/networks/sw-1-c003.yaml
+++ b/input/grid5000/sites/rennes/networks/sw-1-c003.yaml
@@ -42,6 +42,8 @@ sw-1-c003:
           uid: roazhon7-3
         14:
           uid: roazhon8-3
+        15:
+          uid: abacus28-1
         16:
           uid: abacus9-1
         17:
diff --git a/input/grid5000/vlans.yaml b/input/grid5000/vlans.yaml
index e9c3a2dd83378dc8b6869a54707b92ace57092c7..42d54af414e9f5df21678c87e6b5b1500d2401f0 100644
--- a/input/grid5000/vlans.yaml
+++ b/input/grid5000/vlans.yaml
@@ -117,6 +117,7 @@ vlans:
       local rennes abacus14 eth0 0 0 10 4
       local rennes abacus16 eth0 0 0 10 6
       local rennes abacus27 eth0 0 0 10 8
+      local rennes abacus28 eth0 0 0 10 10
       local rennes roazhon3 eth0 0 0 11 0
       local rennes roazhon7 eth0 0 0 11 2
       local rennes roazhon8 eth0 0 0 11 6
@@ -278,6 +279,7 @@ vlans:
       global rennes abacus14 eth0 0 0 52 20
       global rennes abacus16 eth0 0 0 52 30
       global rennes abacus27 eth0 0 0 52 40
+      global rennes abacus28 eth0 0 0 52 50
       global rennes roazhon3 eth0 0 0 53 0
       global rennes roazhon7 eth0 0 0 53 10
       global rennes roazhon8 eth0 0 0 53 20
@@ -330,6 +332,7 @@ vlans:
       routed rennes abacus14 eth0 0 24 10 4
       routed rennes abacus16 eth0 0 24 10 6
       routed rennes abacus27 eth0 0 24 10 8
+      routed rennes abacus28 eth0 0 24 10 10
       routed rennes roazhon3 eth0 0 24 11 0
       routed rennes roazhon7 eth0 0 24 11 5
       routed rennes roazhon8 eth0 0 24 11 9