diff --git a/data/grid5000/accesses/refrepo.json b/data/grid5000/accesses/refrepo.json
index c35979f4c188d23fd6f3a7a7ee5d6561ccf15325..8a0e41f32585c2503d6759b72aa404cac79da738 100644
--- a/data/grid5000/accesses/refrepo.json
+++ b/data/grid5000/accesses/refrepo.json
@@ -68736,7 +68736,7 @@
                   "sriov": false,
                   "sriov_totalvfs": 0,
                   "switch": "sgruss",
-                  "switch_port": "ethernet1/1/17",
+                  "switch_port": "ethernet1/1/18",
                   "vendor": "Mellanox Technologies"
                 },
                 {
@@ -68998,7 +68998,7 @@
                   "sriov": false,
                   "sriov_totalvfs": 0,
                   "switch": "sgruss",
-                  "switch_port": "ethernet1/1/18",
+                  "switch_port": "ethernet1/1/17",
                   "vendor": "Mellanox Technologies"
                 },
                 {
diff --git a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
index 5333f886ab8f875a6a0ec8f6e35c01cfd42f64f2..5f48720dad7f5742cf7118394f9036e609fa9c65 100644
--- a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
+++ b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
@@ -246,7 +246,7 @@
       "sriov": false,
       "sriov_totalvfs": 0,
       "switch": "sgruss",
-      "switch_port": "ethernet1/1/17",
+      "switch_port": "ethernet1/1/18",
       "vendor": "Mellanox Technologies"
     },
     {
diff --git a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json
index f9d04ed016aa143cf5a95b30e19cf68efce7d332..15fcf05cf960c557aa2c62041c2e251a510c4c95 100644
--- a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json
+++ b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json
@@ -246,7 +246,7 @@
       "sriov": false,
       "sriov_totalvfs": 0,
       "switch": "sgruss",
-      "switch_port": "ethernet1/1/18",
+      "switch_port": "ethernet1/1/17",
       "vendor": "Mellanox Technologies"
     },
     {
diff --git a/data/grid5000/sites/nancy/network_equipments/sgruss.json b/data/grid5000/sites/nancy/network_equipments/sgruss.json
index 0ff5d5e379afbfa82f4b6d2adcb5911e6b77b921..c511d27fe2813194fa793a963640ead40cd84b72 100644
--- a/data/grid5000/sites/nancy/network_equipments/sgruss.json
+++ b/data/grid5000/sites/nancy/network_equipments/sgruss.json
@@ -71,13 +71,13 @@
           "kind": "node",
           "port": "eth2",
           "snmp_name": "ethernet1/1/17",
-          "uid": "grouille-1"
+          "uid": "grouille-2"
         },
         {
           "kind": "node",
           "port": "eth2",
           "snmp_name": "ethernet1/1/18",
-          "uid": "grouille-2"
+          "uid": "grouille-1"
         },
         {
         },
diff --git a/input/grid5000/sites/nancy/networks/sgruss.yaml b/input/grid5000/sites/nancy/networks/sgruss.yaml
index 3470960b832bcff1b08df9d43ddeb37c6c4e2e42..aea00871d3501856d28ed3d007d3c19f0d9133ef 100644
--- a/input/grid5000/sites/nancy/networks/sgruss.yaml
+++ b/input/grid5000/sites/nancy/networks/sgruss.yaml
@@ -77,9 +77,9 @@ sgruss:
         16:
           uid: grat-1-eth0
         17:
-           uid: grouille-1-eth2
-        18:
            uid: grouille-2-eth2
+        18:
+           uid: grouille-1-eth2
         25:
           snmp_pattern: "ethernet1/%LINECARD%/%PORT%:1"
           uid: gw-next