diff --git a/data/grid5000/sites/grenoble/network_equipments/gw.json b/data/grid5000/sites/grenoble/network_equipments/gw.json
index a1a76a3d9d11c7faa5a41fb702b5029a4a1819a0..30fb9e846af004d1a5a4d4c5d50a7a656cd3d091 100644
--- a/data/grid5000/sites/grenoble/network_equipments/gw.json
+++ b/data/grid5000/sites/grenoble/network_equipments/gw.json
@@ -343,13 +343,13 @@
         {
           "kind": "channel",
           "rate": 10000000000,
-          "snmp_name": "ethernet1/1/49",
+          "snmp_name": "ethernet1/1/49:1",
           "uid": "port-channel40"
         },
         {
           "kind": "channel",
           "rate": 10000000000,
-          "snmp_name": "ethernet1/1/50",
+          "snmp_name": "ethernet1/1/50:1",
           "uid": "port-channel40"
         },
         {
diff --git a/input/grid5000/sites/grenoble/networks/gw-grenoble.yaml b/input/grid5000/sites/grenoble/networks/gw-grenoble.yaml
index 6428071c1983e4dd819031d4a1d08f7fcedb1e22..64571b91bdf611f8d26372be9115e084ca776f36 100644
--- a/input/grid5000/sites/grenoble/networks/gw-grenoble.yaml
+++ b/input/grid5000/sites/grenoble/networks/gw-grenoble.yaml
@@ -172,12 +172,12 @@ gw:
           uid: port-channel40
           kind: channel
           rate: 10_000_000_000
-          snmp_pattern: "ethernet1/1/%PORT%"
+          snmp_pattern: "ethernet1/1/%PORT%:1"
         50:
           uid: port-channel40
           kind: channel
           rate: 10_000_000_000
-          snmp_pattern: "ethernet1/1/%PORT%"
+          snmp_pattern: "ethernet1/1/%PORT%:1"
         67:
           uid: port-channel50
           kind: channel