diff --git a/data/grid5000/sites/sophia/clusters/esterel2/esterel2.json b/data/grid5000/sites/sophia/clusters/esterel2/esterel2.json
index 4ba8df1d0054585eed4930bf870a08f3ddf6654a..9193db03e58048e4bafc427ba3e7197aca3bc3a3 100644
--- a/data/grid5000/sites/sophia/clusters/esterel2/esterel2.json
+++ b/data/grid5000/sites/sophia/clusters/esterel2/esterel2.json
@@ -2,7 +2,7 @@
   "boot_type": "bios",
   "created_at": "Wed, 12 Mar 2025 00:00:00 GMT",
   "exotic": false,
-  "kavlan": true,
+  "kavlan": false,
   "manufactured_at": "2016-05-04",
   "metrics": [
     {
diff --git a/data/grid5000/sites/sophia/clusters/esterel2/nodes/esterel2-1.json b/data/grid5000/sites/sophia/clusters/esterel2/nodes/esterel2-1.json
index 689e1feed58ef35d3c975c59f474284fe89d94f5..9b1559709e2c8449c5b771f9ee265d3adae75408 100644
--- a/data/grid5000/sites/sophia/clusters/esterel2/nodes/esterel2-1.json
+++ b/data/grid5000/sites/sophia/clusters/esterel2/nodes/esterel2-1.json
@@ -90,50 +90,6 @@
       "vendor": "Nvidia"
     }
   },
-  "kavlan": {
-    "eth0": {
-      "kavlan-1": "192.168.195.2",
-      "kavlan-11": "10.7.230.2",
-      "kavlan-12": "10.11.230.2",
-      "kavlan-13": "10.15.230.2",
-      "kavlan-14": "10.19.230.2",
-      "kavlan-16": "10.27.230.2",
-      "kavlan-17": "10.31.230.2",
-      "kavlan-18": "10.35.230.2",
-      "kavlan-2": "192.168.211.2",
-      "kavlan-20": "10.43.230.2",
-      "kavlan-21": "10.47.230.2",
-      "kavlan-3": "192.168.227.2",
-      "kavlan-4": "10.32.3.2",
-      "kavlan-5": "10.32.67.2",
-      "kavlan-6": "10.32.131.2",
-      "kavlan-7": "10.32.195.2",
-      "kavlan-8": "10.33.3.2",
-      "kavlan-9": "10.33.67.2"
-    }
-  },
-  "kavlan6": {
-    "eth0": {
-      "kavlan-1": "2001:660:4406:880:4::2",
-      "kavlan-11": "2001:660:4406:1a0:804::2",
-      "kavlan-12": "2001:660:4406:2a0:804::2",
-      "kavlan-13": "2001:660:4406:4a0:804::2",
-      "kavlan-14": "2001:660:4406:5a0:804::2",
-      "kavlan-16": "2001:660:4406:7a0:804::2",
-      "kavlan-17": "2001:660:4406:9a0:804::2",
-      "kavlan-18": "2001:660:4406:8a0:804::2",
-      "kavlan-2": "2001:660:4406:881:4::2",
-      "kavlan-20": "2001:660:4406:3a0:804::2",
-      "kavlan-21": "2001:660:4406:6a0:804::2",
-      "kavlan-3": "2001:660:4406:882:4::2",
-      "kavlan-4": "2001:660:4406:890:4::2",
-      "kavlan-5": "2001:660:4406:891:4::2",
-      "kavlan-6": "2001:660:4406:892:4::2",
-      "kavlan-7": "2001:660:4406:893:4::2",
-      "kavlan-8": "2001:660:4406:894:4::2",
-      "kavlan-9": "2001:660:4406:895:4::2"
-    }
-  },
   "main_memory": {
     "ram_size": 137438953472
   },
@@ -234,7 +190,7 @@
       "interface": "Ethernet",
       "ip": "172.16.131.2",
       "ip6": "2001:660:4406:800:4::2",
-      "kavlan": true,
+      "kavlan": false,
       "mac": "14:18:77:61:c4:45",
       "management": false,
       "model": "I350 Gigabit Network Connection",
diff --git a/input/grid5000/sites/sophia/clusters/esterel2/esterel2.yaml b/input/grid5000/sites/sophia/clusters/esterel2/esterel2.yaml
index a541a2d6771ebd5471856f9a165b27c3ab833ada..4934ebfa3a7cf74a500d2327f6a469fbbf40d8f1 100644
--- a/input/grid5000/sites/sophia/clusters/esterel2/esterel2.yaml
+++ b/input/grid5000/sites/sophia/clusters/esterel2/esterel2.yaml
@@ -1,7 +1,7 @@
 ---
 model: Dell PowerEdge T630
 created_at: 2025-03-12
-kavlan: true
+kavlan: false
 boot_type: bios
 exotic: false
 queues: