diff --git a/data/grid5000/sites/grenoble/network_equipments/imag-1b-F3-prod-01.json b/data/grid5000/sites/grenoble/network_equipments/imag-1b-F3-prod-01.json
index 61fed4e07c85fc70dd034a0a7ac2b3eaa7fbad03..4371608428f0a6c4f9c161d7d46c3a3fa7e912e1 100644
--- a/data/grid5000/sites/grenoble/network_equipments/imag-1b-F3-prod-01.json
+++ b/data/grid5000/sites/grenoble/network_equipments/imag-1b-F3-prod-01.json
@@ -3,7 +3,7 @@
   "channels": {
     "lag1": {
       "kind": "router",
-      "port": "lag1",
+      "port": "port-channel50",
       "rate": 50000000000,
       "ssh_name": "lag 1",
       "uid": "gw"
diff --git a/input/grid5000/sites/grenoble/networks/imag-1b-F3-prod-01.yaml b/input/grid5000/sites/grenoble/networks/imag-1b-F3-prod-01.yaml
index e372ea86c72f2792d3db4801d7769d7a70933a40..c89d3f7fe12bca37008a6491e69be06bdeb3cdf7 100644
--- a/input/grid5000/sites/grenoble/networks/imag-1b-F3-prod-01.yaml
+++ b/input/grid5000/sites/grenoble/networks/imag-1b-F3-prod-01.yaml
@@ -62,4 +62,4 @@ imag-1b-F3-prod-01:
       kind: router
       rate: 50_000_000_000
       uid: gw
-      port: lag1
+      port: port-channel50