diff --git a/data/grid5000/sites/nancy/network_equipments/gw.json b/data/grid5000/sites/nancy/network_equipments/gw.json
index 3cb12eac73c2d980e1c903b3d452db532d40afdf..9587f52b1fbfef2940ea26cfe9a497ed639977fb 100644
--- a/data/grid5000/sites/nancy/network_equipments/gw.json
+++ b/data/grid5000/sites/nancy/network_equipments/gw.json
@@ -16,6 +16,12 @@
       "port": "port-channel1",
       "rate": 800000000000,
       "uid": "sgros2"
+    },
+    "port-channel4": {
+      "kind": "switch",
+      "port": "port-channel1",
+      "rate": 1000000000000,
+      "uid": "sgrappe"
     }
   },
   "ip": "172.16.79.254",
diff --git a/data/grid5000/sites/nancy/network_equipments/sgrappe.json b/data/grid5000/sites/nancy/network_equipments/sgrappe.json
index 4e52b260b377c83bac7be6ec0ad1362bf607df88..260bd21c36b137966c476958015cc29ee7edfa6e 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgrappe.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgrappe.json
@@ -1,4 +1,12 @@
 {
+  "channels": {
+    "port-channel1": {
+      "kind": "router",
+      "port": "port-channel4",
+      "rate": 1000000000000,
+      "uid": "gw"
+    }
+  },
   "ip": "172.17.79.205",
   "kind": "switch",
   "linecards": [
@@ -105,6 +113,32 @@
           "port": "eth0",
           "snmp_name": "Ethernet1/1/16",
           "uid": "grappe-16"
+        },
+        {
+        },
+        {
+        },
+        {
+        },
+        {
+        },
+        {
+        },
+        {
+        },
+        {
+        },
+        {
+        },
+        {
+          "kind": "channel",
+          "snmp_name": "Ethernet1/1/25",
+          "uid": "port-channel1"
+        },
+        {
+          "kind": "channel",
+          "snmp_name": "Ethernet1/1/26",
+          "uid": "port-channel1"
         }
       ],
       "rate": 25000000000,
diff --git a/input/grid5000/sites/nancy/networks/gw-nancy.yaml b/input/grid5000/sites/nancy/networks/gw-nancy.yaml
index bf57505ac94430ac410feefdd4359c64ba1b7859..7db7d8e074610fc6fef96de7b1bfcfaf2c7c2606 100644
--- a/input/grid5000/sites/nancy/networks/gw-nancy.yaml
+++ b/input/grid5000/sites/nancy/networks/gw-nancy.yaml
@@ -801,3 +801,9 @@ gw:
       uid: sgros2
       kind: switch
       rate: 800000000000
+    port-channel4: 
+      port: port-channel1
+      uid: sgrappe
+      kind: switch
+      rate: 1000000000000     
+    
diff --git a/input/grid5000/sites/nancy/networks/sgrappe.yaml b/input/grid5000/sites/nancy/networks/sgrappe.yaml
index 60cd2a2190429e7971855b1033a80bc11a794732..a21baa46bae9f26639ffe380b410162ed4a8c084 100644
--- a/input/grid5000/sites/nancy/networks/sgrappe.yaml
+++ b/input/grid5000/sites/nancy/networks/sgrappe.yaml
@@ -46,3 +46,15 @@ sgrappe:
            uid: grappe-15
         16:
            uid: grappe-16
+        25:
+           uid: port-channel1
+           kind: channel
+        26: 
+           uid: port-channel1
+           kind: channel
+  channels:
+    port-channel1:
+      port: port-channel4
+      uid: gw
+      kind: router
+      rate: 1000000000000