diff --git a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
index bd1214df44300c418cd4e5ee7522c42a12d8680c..da02977b89063b6941a0e86750ea204d71862029 100644
--- a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
+++ b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
@@ -137,7 +137,7 @@
       "network_address": "gemini-1.lyon.grid5000.fr",
       "rate": 10000000000,
       "switch": "gw-lyon",
-      "switch_port": "ethernet 1/0/1",
+      "switch_port": "ethernet1/1/1",
       "vendor": "Intel"
     },
     {
diff --git a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
index 73cd9ed2704628bed3e603a102e464e0841aebd1..f32ac42f9720ff3f4af968726fcfc0e9ad702581 100644
--- a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
+++ b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
@@ -137,7 +137,7 @@
       "network_address": "gemini-2.lyon.grid5000.fr",
       "rate": 10000000000,
       "switch": "gw-lyon",
-      "switch_port": "ethernet 1/0/2",
+      "switch_port": "ethernet1/1/2",
       "vendor": "Intel"
     },
     {
diff --git a/data/grid5000/sites/lyon/network_equipments/gw-lyon.json b/data/grid5000/sites/lyon/network_equipments/gw-lyon.json
index cd5c367996718c6ba5d7836103f0cb9131f097e1..b0803b88ee0c02f1e1d48dddb5a4e3da6952365f 100644
--- a/data/grid5000/sites/lyon/network_equipments/gw-lyon.json
+++ b/data/grid5000/sites/lyon/network_equipments/gw-lyon.json
@@ -2,6 +2,8 @@
   "backplane_bps": 960000000000,
   "kind": "router",
   "linecards": [
+    {
+    },
     {
       "kavlan_pattern": "%PORT%",
       "kind": "node",
@@ -96,7 +98,7 @@
         }
       ],
       "rate": 10000000000,
-      "snmp_pattern": "ethernet 1/%LINECARD%/%PORT%"
+      "snmp_pattern": "ethernet1/%LINECARD%/%PORT%"
     }
   ],
   "model": "Dell EMC S4128F-ON",
diff --git a/input/grid5000/sites/lyon/networks/gw-lyon.yaml b/input/grid5000/sites/lyon/networks/gw-lyon.yaml
index 56ab170a282de9d15b61fd7b81ba9445fcb066cb..ccd0e47554c114a4267dc0c7df6b5320bdf4648e 100644
--- a/input/grid5000/sites/lyon/networks/gw-lyon.yaml
+++ b/input/grid5000/sites/lyon/networks/gw-lyon.yaml
@@ -64,8 +64,8 @@ gw-lyon:
         - 10.15.192.0/18
   backplane_bps: 960000000000
   linecards:
-    0:
-      snmp_pattern: "ethernet 1/%LINECARD%/%PORT%"
+    1:
+      snmp_pattern: "ethernet1/%LINECARD%/%PORT%"
       kavlan_pattern: "%PORT%"
       kind: node
       rate: 10000000000