diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
index d5e5f7bbd295b255aef5dc0409fa3498bb43e633..fe984e12c00e672221cb2498d1d51c4e1be30503 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
@@ -133,8 +133,8 @@
         },
         "pdu": [
           {
-            "port": 3,
-            "uid": "wattmetre9"
+            "port": 9,
+            "uid": "wattmetre1"
           }
         ],
         "www": {
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
index f3584fabd394d25176ffdadbb5a33aefbe66980a..389c581f4cf1dd360499158448d6539a48bcd9dd 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
@@ -133,8 +133,8 @@
         },
         "pdu": [
           {
-            "port": 4,
-            "uid": "wattmetre10"
+            "port": 10,
+            "uid": "wattmetre1"
           }
         ],
         "www": {
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
index 60d8f2918f82991dc5a50d936989e4238dc3038a..f31c6a31407b7996da0c2cff5eb0845589939a31 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
@@ -133,8 +133,8 @@
         },
         "pdu": [
           {
-            "port": 5,
-            "uid": "wattmetre11"
+            "port": 11,
+            "uid": "wattmetre1"
           }
         ],
         "www": {
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
index 3e22b5d7e2acc71aaea949d2fa6b9698c6f393f6..f7e7d063160b1041e49b38d04c7089694c940c52 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
@@ -133,8 +133,8 @@
         },
         "pdu": [
           {
-            "port": 6,
-            "uid": "wattmetre12"
+            "port": 12,
+            "uid": "wattmetre1"
           }
         ],
         "www": {
diff --git a/data/grid5000/sites/grenoble/pdus/wattmetre1.json b/data/grid5000/sites/grenoble/pdus/wattmetre1.json
index 7a8a45331e3156a2624bb3fda864c8e57bbf6997..0be177eb5330a9c287cbb679adf661680959c709 100644
--- a/data/grid5000/sites/grenoble/pdus/wattmetre1.json
+++ b/data/grid5000/sites/grenoble/pdus/wattmetre1.json
@@ -4,12 +4,16 @@
   "ports": {
     "0": "yeti-1",
     "1": "yeti-1",
+    "10": "troll-2",
+    "11": "troll-3",
+    "12": "troll-4",
     "2": "yeti-2",
     "3": "yeti-2",
     "4": "yeti-3",
     "5": "yeti-3",
     "6": "yeti-4",
-    "7": "yeti-4"
+    "7": "yeti-4",
+    "9": "troll-1"
   },
   "sensors": [
     {
diff --git a/input/grid5000/sites/grenoble/clusters/troll/troll_pdu.yaml b/input/grid5000/sites/grenoble/clusters/troll/troll_pdu.yaml
index 0ff9c45cbc3efb2bdc177dfcf8e0ef889d378995..ebc464ee719efcee1c31a3db1f0dbaec5ef9663d 100644
--- a/input/grid5000/sites/grenoble/clusters/troll/troll_pdu.yaml
+++ b/input/grid5000/sites/grenoble/clusters/troll/troll_pdu.yaml
@@ -1,17 +1,17 @@
 nodes:
   troll-1:
     pdu:
-      - uid: wattmetre9
-        port: 3
+      - uid: wattmetre1
+        port: 9
   troll-2:
     pdu:
-      - uid: wattmetre10
-        port: 4
+      - uid: wattmetre1
+        port: 10
   troll-3:
     pdu:
-      - uid: wattmetre11
-        port: 5
+      - uid: wattmetre1
+        port: 11
   troll-4:
     pdu:
-      - uid: wattmetre12
-        port: 6
+      - uid: wattmetre1
+        port: 12