[rennes][network] Fix interco local inria network on gw

data/grid5000/sites/rennes/network_equipments/gw.json

@@ -18,9 +18,9 @@
     },
     "lag3": {
       "kind": "switch",
-      "port": "Ethernet1/999",
-      "rate": 50000000000,
-      "uid": "mc-fake-sw"
+      "port": "lag3",
+      "rate": 20000000000,
+      "uid": "vss-inria"
     }
   },
   "ip": "172.17.111.211",

input/grid5000/sites/rennes/networks/gw-rennes.yaml

@@ -120,6 +120,6 @@ gw:
       port: lag2
     lag3:
       kind: switch
-      rate: 50000000000
-      uid: mc-fake-sw
-      port: Ethernet1/999
+      rate: 20000000000
+      uid: vss-inria
+      port: lag3