diff --git a/data/grid5000/sites/nancy/network_equipments/sgros1.json b/data/grid5000/sites/nancy/network_equipments/sgros1.json
index 4e1a91ccd59e410bf1e9f2812b3297255ee72725..6e1e1ae8437341b3e91c69918965da74891a748a 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgros1.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgros1.json
@@ -14,7 +14,7 @@
     {
     },
     {
-      "kavlan_pattern": "ethernet1/1/%LINECARD%:%PORT%",
+      "kavlan_pattern": "ethernet1/1/%PORT%:1",
       "ports": [
         {
         },
@@ -25,12 +25,12 @@
         },
         {
           "kind": "channel",
-          "snmp_name": "ethernet1/1/1:2",
+          "snmp_name": "ethernet1/1/2:1",
           "uid": "port-channel1"
         }
       ],
       "rate": 40000000000,
-      "snmp_pattern": "ethernet1/1/%LINECARD%:%PORT%"
+      "snmp_pattern": "ethernet1/1/%PORT%:1"
     },
     {
     },
diff --git a/data/grid5000/sites/nancy/network_equipments/sgros2.json b/data/grid5000/sites/nancy/network_equipments/sgros2.json
index 71170a9d53b3f2b3cb653eb931d47327c58e9101..a861c1215ca42900957c58aa0e4a71cd997f1ee2 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgros2.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgros2.json
@@ -14,7 +14,7 @@
     {
     },
     {
-      "kavlan_pattern": "ethernet1/1/%LINECARD%:%PORT%",
+      "kavlan_pattern": "ethernet1/1/%PORT%:1",
       "ports": [
         {
         },
@@ -25,12 +25,12 @@
         },
         {
           "kind": "channel",
-          "snmp_name": "ethernet1/1/1:2",
+          "snmp_name": "ethernet1/1/2:1",
           "uid": "port-channel1"
         }
       ],
       "rate": 40000000000,
-      "snmp_pattern": "ethernet1/1/%LINECARD%:%PORT%"
+      "snmp_pattern": "ethernet1/1/%PORT%:1"
     },
     {
     },
diff --git a/input/grid5000/sites/nancy/networks/sgros1.yaml b/input/grid5000/sites/nancy/networks/sgros1.yaml
index 6c8d5b6ff627bf074611197191684ca5ed5b9c20..efe40663d75542109662bc0c21d1740cb8bf0171 100644
--- a/input/grid5000/sites/nancy/networks/sgros1.yaml
+++ b/input/grid5000/sites/nancy/networks/sgros1.yaml
@@ -10,8 +10,8 @@ sgros1:
   backplane_bps: 6400000000000
   linecards:
     1:
-      snmp_pattern: "ethernet1/1/%LINECARD%:%PORT%"
-      kavlan_pattern: "ethernet1/1/%LINECARD%:%PORT%"
+      snmp_pattern: "ethernet1/1/%PORT%:1"
+      kavlan_pattern: "ethernet1/1/%PORT%:1"
       rate: 40_000_000_000
       ports:
         1:
diff --git a/input/grid5000/sites/nancy/networks/sgros2.yaml b/input/grid5000/sites/nancy/networks/sgros2.yaml
index 2d09d51013a7f869958815b1999772dd68fc220d..8c8a73818942024676dd08ae34f4a6fcb1f368c5 100644
--- a/input/grid5000/sites/nancy/networks/sgros2.yaml
+++ b/input/grid5000/sites/nancy/networks/sgros2.yaml
@@ -10,8 +10,8 @@ sgros2:
   backplane_bps: 6400000000000
   linecards:
     1:
-      snmp_pattern: "ethernet1/1/%LINECARD%:%PORT%"
-      kavlan_pattern: "ethernet1/1/%LINECARD%:%PORT%"
+      snmp_pattern: "ethernet1/1/%PORT%:1"
+      kavlan_pattern: "ethernet1/1/%PORT%:1"
       rate: 40_000_000_000
       ports:
         1: