diff --git a/data/grid5000/sites/nancy/clusters/graoully/graoully.json b/data/grid5000/sites/nancy/clusters/graoully/graoully.json
index 4b83331b170f39db6ace3c490314986c5f0f7589..0258534d55533ac6a8c542da98eb7a3f1955f73b 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/graoully.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/graoully.json
@@ -1,6 +1,6 @@
 {
   "created_at": "Sun, 03 Jan 2016 23:00:00 GMT",
-  "kavlan": false,
+  "kavlan": true,
   "model": "Dell PowerEdge R630",
   "queues": [
     "admin",
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/grimoire.json b/data/grid5000/sites/nancy/clusters/grimoire/grimoire.json
index 1b6732ae4f739aff3b9330a9fc6c78a0d22a7618..f747bea97f408a0023d0835b3811611bdfdeec89 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/grimoire.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/grimoire.json
@@ -1,6 +1,6 @@
 {
   "created_at": "Thu, 21 Jan 2016 23:00:00 GMT",
-  "kavlan": false,
+  "kavlan": true,
   "model": "Dell PowerEdge R630",
   "queues": [
     "admin",
diff --git a/data/grid5000/sites/nancy/clusters/grisou/grisou.json b/data/grid5000/sites/nancy/clusters/grisou/grisou.json
index fa12ba2d5bca5dacea06296b0b465ad05ada4cb2..b64d8b21be931250cfbd25355541e17299bd745d 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/grisou.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/grisou.json
@@ -1,6 +1,6 @@
 {
   "created_at": "Sun, 03 Jan 2016 23:00:00 GMT",
-  "kavlan": false,
+  "kavlan": true,
   "model": "Dell PowerEdge R630",
   "queues": [
     "admin",
diff --git a/generators/input/sites/nancy/clusters/graoully/graoully.rb b/generators/input/sites/nancy/clusters/graoully/graoully.rb
index 1a96172caa17ad94a758e559c0a5af1e4f581c60..581086e167b01a03db8d8dfd4de1113078b08cc0 100644
--- a/generators/input/sites/nancy/clusters/graoully/graoully.rb
+++ b/generators/input/sites/nancy/clusters/graoully/graoully.rb
@@ -3,7 +3,7 @@ site :nancy do |site_uid|
   cluster :graoully do |cluster_uid|
     model "Dell PowerEdge R630"
     created_at Time.parse("2016-01-04").httpdate
-    kavlan false
+    kavlan true
     queues ['admin', 'testing']
 
     16.times do |i|
diff --git a/generators/input/sites/nancy/clusters/grimoire/grimoire.rb b/generators/input/sites/nancy/clusters/grimoire/grimoire.rb
index 2b6ddf22b0f6dd7a636382c7725231b131dc3cc5..2128bc7311e82e504eeebfab3722c5670870352b 100644
--- a/generators/input/sites/nancy/clusters/grimoire/grimoire.rb
+++ b/generators/input/sites/nancy/clusters/grimoire/grimoire.rb
@@ -3,7 +3,7 @@ site :nancy do |site_uid|
   cluster :grimoire do |cluster_uid|
     model "Dell PowerEdge R630"
     created_at Time.parse("2016-01-22").httpdate
-    kavlan false
+    kavlan true
     queues ['admin', 'testing']
 
     8.times do |i|
diff --git a/generators/input/sites/nancy/clusters/grisou/grisou.rb b/generators/input/sites/nancy/clusters/grisou/grisou.rb
index 75e5a2f74b4a4f20f350e7cdc04fdd9835ad67b7..8465ff0c5b3a4ad46d55c8218baedf744bf864fe 100644
--- a/generators/input/sites/nancy/clusters/grisou/grisou.rb
+++ b/generators/input/sites/nancy/clusters/grisou/grisou.rb
@@ -3,7 +3,7 @@ site :nancy do |site_uid|
   cluster :grisou do |cluster_uid|
     model "Dell PowerEdge R630"
     created_at Time.parse("2016-01-04").httpdate
-    kavlan false
+    kavlan true
     queues ['admin', 'testing']
 
     51.times do |i|