diff --git a/data/grid5000/sites/rennes/network_equipments/c6509.json b/data/grid5000/sites/rennes/network_equipments/c6509.json
index 29d51eca695bccd332fc560340ef4d86275f83c7..b8bb5a9f6eb8911ee3e185ea525344c59583c391 100644
--- a/data/grid5000/sites/rennes/network_equipments/c6509.json
+++ b/data/grid5000/sites/rennes/network_equipments/c6509.json
@@ -197,10 +197,6 @@
           "uid": "parapide-3"
         },
         {
-          "kind": "node",
-          "port": "eth0",
-          "snmp_name": "GigabitEthernet3/4",
-          "uid": "parapide-4"
         },
         {
           "kind": "node",
@@ -239,10 +235,6 @@
           "uid": "parapide-10"
         },
         {
-          "kind": "node",
-          "port": "eth0",
-          "snmp_name": "GigabitEthernet3/11",
-          "uid": "parapide-11"
         },
         {
           "kind": "node",
@@ -277,10 +269,6 @@
           "uid": "parapide-19"
         },
         {
-          "kind": "node",
-          "port": "eth0",
-          "snmp_name": "GigabitEthernet3/18",
-          "uid": "parapide-20"
         },
         {
           "kind": "node",
@@ -325,10 +313,6 @@
           "uid": "parapluie-2"
         },
         {
-          "kind": "node",
-          "port": "eth1",
-          "snmp_name": "GigabitEthernet4/3",
-          "uid": "parapluie-8"
         },
         {
           "kind": "node",
@@ -349,10 +333,6 @@
           "uid": "parapluie-12"
         },
         {
-          "kind": "node",
-          "port": "eth1",
-          "snmp_name": "GigabitEthernet4/7",
-          "uid": "parapluie-13"
         },
         {
           "kind": "node",
diff --git a/input/grid5000/sites/rennes/networks/c6509.yaml b/input/grid5000/sites/rennes/networks/c6509.yaml
index c555237a18e308818c9edf2247f28f65b47cb2e8..1a745a8a69a4150a64f6c0f487c85095b1fdd501 100644
--- a/input/grid5000/sites/rennes/networks/c6509.yaml
+++ b/input/grid5000/sites/rennes/networks/c6509.yaml
@@ -64,20 +64,17 @@ c6509:
         1: parapide-1
         2: parapide-2
         3: parapide-3
-        4: parapide-4
         5: parapide-5
         6: parapide-6
         7: parapide-7
         8: parapide-8
         9: parapide-9
         10: parapide-10
-        11: parapide-11
         12: parapide-12
         13: parapide-13
         15: parapide-16
         16: parapide-18
         17: parapide-19
-        18: parapide-20
         19: parapide-21
         20: parapide-24
         21: parapide-25
@@ -91,11 +88,9 @@ c6509:
       ports:
         1: parapluie-1-eth1
         2: parapluie-2-eth1
-        3: parapluie-8-eth1
         4: parapluie-9-eth1
         5: parapluie-11-eth1
         6: parapluie-12-eth1
-        7: parapluie-13-eth1
         8: parapluie-15-eth1
         9: parapluie-19-eth1
         10: parapluie-20-eth1