diff --git a/spec/oar_properties_spec.rb b/spec/oar_properties_spec.rb
index e79963cf474cfadd663080b26a1192a2b54390da..6b7ccb0554898b8b05f7f565bd0a56442a6b9351 100644
--- a/spec/oar_properties_spec.rb
+++ b/spec/oar_properties_spec.rb
@@ -48,6 +48,7 @@ def prepare_stubs(oar_api, data_hierarchy)
   conf = RefRepo::Utils.get_api_config
   stubbed_addresses = [
     "#{conf["uri"]}",
+    "#{conf["uri"]}/oarapi/resources/details.json?limit=999999",
     "#{conf["uri"]}stable/sites/fakesite/internal/oarapi/resources/details.json?limit=999999",
   ]
   stubbed_api_response = load_stub_file_content(oar_api)
@@ -66,6 +67,60 @@ end
 
 describe 'OarProperties' do
 
+  context 'testing arguments' do
+    before do
+      prepare_stubs("dump_oar_api_empty_server.json", "load_data_hierarchy_stubbed_data.json")
+    end
+
+    it 'should should accept case where only the site is specified' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => true,
+          :print => false,
+          :update => false,
+          :diff => false,
+          :site => "fakesite",
+      }
+
+      expected_header = <<-TXT
++---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
+|   cluster | host                 | cpu   | core  | cpuset   | gpu  | gpudevice            | cpumodel                       | gpumodel                      |
++---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
+TXT
+
+      generator_output = capture do
+        generate_oar_properties(options)
+      end
+
+      expect(generator_output[:stdout]).to include(expected_header)
+    end
+
+    it 'should should accept case where only the site is specified' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => true,
+          :print => false,
+          :update => false,
+          :diff => false,
+          :site => "fakesite2",
+      }
+
+      expect { generate_oar_properties(options) }.to raise_error("The provided site does not exist : I can't detect clusters")
+    end
+  end
+
   context 'interracting with an empty OAR server' do
     before do
       prepare_stubs("dump_oar_api_empty_server.json", "load_data_hierarchy_stubbed_data.json")
@@ -279,8 +334,6 @@ TXT
     end
   end
 
-
-
   context 'OAR server with data' do
     before do
       prepare_stubs("dump_oar_api_configured_server.json", "load_data_hierarchy_stubbed_data.json")
@@ -307,7 +360,7 @@ TXT
 +---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
 |   cluster | host                 | cpu   | core  | cpuset   | gpu  | gpudevice            | cpumodel                       | gpumodel                      |
 +---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
-      TXT
+TXT
 
       expected_clustera1_desc = <<-TXT
 |  clustera | clustera-1           | 1     | 1     | 0        | 1    | 0                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
@@ -316,7 +369,7 @@ TXT
 |  clustera | clustera-1           | 1     | 4     | 3        | 1    | 0                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clustera | clustera-1           | 1     | 5     | 4        | 2    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clustera | clustera-1           | 1     | 6     | 5        | 2    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
-      TXT
+TXT
 
       expected_clustera2_desc = <<-TXT
 |  clustera | clustera-2           | 4     | 26    | 9        | 7    | 2                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
@@ -326,7 +379,7 @@ TXT
 |  clustera | clustera-2           | 4     | 30    | 13       | 8    | 3                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clustera | clustera-2           | 4     | 31    | 14       | 8    | 3                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clustera | clustera-2           | 4     | 32    | 15       | 8    | 3                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
-      TXT
+TXT
 
       generator_output = capture do
         generate_oar_properties(options)
@@ -364,7 +417,7 @@ property_exist 'core' || oarproperty -a core
 property_exist 'gpudevice' || oarproperty -a gpudevice
 property_exist 'gpu' || oarproperty -a gpu
 property_exist 'gpu_model' || oarproperty -a gpu_model --varchar
-      TXT
+TXT
 
       expected_clustera1_cmds = <<-TXT
 ###################################
@@ -374,7 +427,7 @@ oarnodesetting --sql "host='clustera-1.fakesite.grid5000.fr' AND resource_id='1'
 oarnodesetting --sql "host='clustera-1.fakesite.grid5000.fr' AND resource_id='2' AND type='default'" -p cpu=1 -p core=2 -p cpuset=1 -p gpu=1 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
 oarnodesetting --sql "host='clustera-1.fakesite.grid5000.fr' AND resource_id='3' AND type='default'" -p cpu=1 -p core=3 -p cpuset=2 -p gpu=1 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
 oarnodesetting --sql "host='clustera-1.fakesite.grid5000.fr' AND resource_id='4' AND type='default'" -p cpu=1 -p core=4 -p cpuset=3 -p gpu=1 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
-      TXT
+TXT
 
       expected_clustera2_cmds = <<-TXT
 ###################################
@@ -385,11 +438,11 @@ oarnodesetting --sql "host='clustera-2.fakesite.grid5000.fr' AND resource_id='18
 oarnodesetting --sql "host='clustera-2.fakesite.grid5000.fr' AND resource_id='19' AND type='default'" -p cpu=3 -p core=19 -p cpuset=2 -p gpu=5 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
 oarnodesetting --sql "host='clustera-2.fakesite.grid5000.fr' AND resource_id='20' AND type='default'" -p cpu=3 -p core=20 -p cpuset=3 -p gpu=5 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
 oarnodesetting --sql "host='clustera-2.fakesite.grid5000.fr' AND resource_id='21' AND type='default'" -p cpu=3 -p core=21 -p cpuset=4 -p gpu=6 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=1 # This GPU is mapped on /dev/nvidia1
-      TXT
+TXT
 
       expected_clustera3_cmds = <<-TXT
 oarnodesetting --sql "host='clustera-2.fakesite.grid5000.fr' and type='default'" -p ip='172.16.64.2' -p cluster='clustera' -p nodemodel='Dell PowerEdge T640' -p switch='gw-fakesite' -p virtual='ivt' -p cpuarch='x86_64' -p cpucore=8 -p cputype='Intel Xeon Silver 4110' -p cpufreq='2.1' -p disktype='SATA' -p eth_count=1 -p eth_rate=10 -p ib_count=0 -p ib_rate=0 -p ib='NO' -p opa_count=0 -p opa_rate=0 -p opa='NO' -p myri_count=0 -p myri_rate=0 -p myri='NO' -p memcore=8192 -p memcpu=65536 -p memnode=131072 -p gpu_count=4 -p mic='NO' -p wattmeter='MULTIPLE' -p cluster_priority=201906 -p max_walltime=86400 -p production='YES' -p maintenance='NO' -p disk_reservation_count=0
-      TXT
+TXT
 
       generator_output = capture do
         generate_oar_properties(options)
@@ -462,7 +515,7 @@ TXT
 +---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
 |   cluster | host                 | cpu   | core  | cpuset   | gpu  | gpudevice            | cpumodel                       | gpumodel                      |
 +---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
-      TXT
+TXT
 
       expected_clusterb1_desc = <<-TXT
 |  clusterb | clusterb-1           | 1     | 1     | 0        | 1    | 0                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
@@ -472,7 +525,7 @@ TXT
 |  clusterb | clusterb-1           | 1     | 5     | 4        | 2    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-1           | 1     | 6     | 5        | 2    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-1           | 1     | 7     | 6        | 2    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
-      TXT
+TXT
 
       expected_clusterb2_desc = <<-TXT
 |  clusterb | clusterb-2           | 3     | 17    | 0        | 5    | 0                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
@@ -482,7 +535,7 @@ TXT
 |  clusterb | clusterb-2           | 3     | 21    | 4        | 6    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-2           | 3     | 22    | 5        | 6    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-2           | 3     | 23    | 6        | 6    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
-      TXT
+TXT
 
       generator_output = capture do
         generate_oar_properties(options)
@@ -541,11 +594,11 @@ oarnodesetting -a -h 'clusterb-2.fakesite.grid5000.fr' -p host='clusterb-2.fakes
 oarnodesetting -a -h 'clusterb-2.fakesite.grid5000.fr' -p host='clusterb-2.fakesite.grid5000.fr' -p cpu=4 -p core=30 -p cpuset=13 -p gpu=8 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=3 # This GPU is mapped on /dev/nvidia3
 oarnodesetting -a -h 'clusterb-2.fakesite.grid5000.fr' -p host='clusterb-2.fakesite.grid5000.fr' -p cpu=4 -p core=31 -p cpuset=14 -p gpu=8 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=3 # This GPU is mapped on /dev/nvidia3
 oarnodesetting -a -h 'clusterb-2.fakesite.grid5000.fr' -p host='clusterb-2.fakesite.grid5000.fr' -p cpu=4 -p core=32 -p cpuset=15 -p gpu=8 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=3 # This GPU is mapped on /dev/nvidia3
-      TXT
+TXT
 
       expected_clusterb3_cmds = <<-TXT
 oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' and type='default'" -p ip='172.16.64.2' -p cluster='clusterb' -p nodemodel='Dell PowerEdge T640' -p virtual='ivt' -p cpuarch='x86_64' -p cpucore=8 -p cputype='Intel Xeon Silver 4110' -p cpufreq='2.1' -p disktype='SATA' -p eth_count=1 -p eth_rate=10 -p ib_count=0 -p ib_rate=0 -p ib='NO' -p opa_count=0 -p opa_rate=0 -p opa='NO' -p myri_count=0 -p myri_rate=0 -p myri='NO' -p memcore=8192 -p memcpu=65536 -p memnode=131072 -p gpu_count=4 -p mic='NO' -p wattmeter='MULTIPLE' -p cluster_priority=201906 -p max_walltime=86400 -p production='YES' -p maintenance='NO' -p disk_reservation_count=3
-      TXT
+TXT
 
       expected_clusterb4_cmds = <<-TXT
 echo '================================================================================'
@@ -620,7 +673,7 @@ TXT
     ["+", "switch", nil]
     ["+", "virtual", "ivt"]
     ["+", "wattmeter", "MULTIPLE"]
-      TXT
+TXT
 
       expected_clusterb2_diff = <<-TXT
   clusterb-2: new node !
@@ -656,7 +709,7 @@ TXT
     ["+", "switch", nil]
     ["+", "virtual", "ivt"]
     ["+", "wattmeter", "MULTIPLE"]
-      TXT
+TXT
 
       expected_clusterb3_diff =  <<-TXT
   ["clusterb-1", "sdb.clusterb-1"]: new disk !
@@ -725,7 +778,7 @@ TXT
     ["+", "maintenance", "NO"]
     ["+", "network_address", ""]
     ["+", "production", "YES"]
-      TXT
+TXT
 
       generator_output = capture do
         generate_oar_properties(options)
@@ -739,7 +792,7 @@ TXT
 
 
 
-  context 'OAR server with data' do
+  context 'OAR server with data (cluster with disk)' do
     before do
       prepare_stubs("dump_oar_api_configured_server_with_disk.json", "load_data_hierarchy_stubbed_data_with_disk.json")
     end
@@ -765,7 +818,7 @@ TXT
 +---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
 |   cluster | host                 | cpu   | core  | cpuset   | gpu  | gpudevice            | cpumodel                       | gpumodel                      |
 +---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
-      TXT
+TXT
 
       expected_clusterb1_desc = <<-TXT
 |  clusterb | clusterb-1           | 1     | 1     | 0        | 1    | 0                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
@@ -774,7 +827,7 @@ TXT
 |  clusterb | clusterb-1           | 1     | 4     | 3        | 1    | 0                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-1           | 1     | 5     | 4        | 2    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-1           | 1     | 6     | 5        | 2    | 1                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
-      TXT
+TXT
 
       expected_clusterb2_desc = <<-TXT
 |  clusterb | clusterb-2           | 4     | 26    | 9        | 7    | 2                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
@@ -784,7 +837,7 @@ TXT
 |  clusterb | clusterb-2           | 4     | 30    | 13       | 8    | 3                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-2           | 4     | 31    | 14       | 8    | 3                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
 |  clusterb | clusterb-2           | 4     | 32    | 15       | 8    | 3                    | Intel Xeon Silver 4110         | GeForce RTX 2080 Ti           |
-      TXT
+TXT
 
       generator_output = capture do
         generate_oar_properties(options)
@@ -822,7 +875,7 @@ property_exist 'core' || oarproperty -a core
 property_exist 'gpudevice' || oarproperty -a gpudevice
 property_exist 'gpu' || oarproperty -a gpu
 property_exist 'gpu_model' || oarproperty -a gpu_model --varchar
-      TXT
+TXT
 
       expected_clusterb1_cmds = <<-TXT
 ###################################
@@ -832,7 +885,7 @@ oarnodesetting --sql "host='clusterb-1.fakesite.grid5000.fr' AND resource_id='1'
 oarnodesetting --sql "host='clusterb-1.fakesite.grid5000.fr' AND resource_id='2' AND type='default'" -p cpu=1 -p core=2 -p cpuset=1 -p gpu=1 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
 oarnodesetting --sql "host='clusterb-1.fakesite.grid5000.fr' AND resource_id='3' AND type='default'" -p cpu=1 -p core=3 -p cpuset=2 -p gpu=1 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
 oarnodesetting --sql "host='clusterb-1.fakesite.grid5000.fr' AND resource_id='4' AND type='default'" -p cpu=1 -p core=4 -p cpuset=3 -p gpu=1 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=0 # This GPU is mapped on /dev/nvidia0
-      TXT
+TXT
 
       expected_clusterb2_cmds = <<-TXT
 ###################################
@@ -854,11 +907,11 @@ oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' AND resource_id='32
 oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' AND resource_id='33' AND type='default'" -p cpu=4 -p core=30 -p cpuset=13 -p gpu=8 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=3 # This GPU is mapped on /dev/nvidia3
 oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' AND resource_id='34' AND type='default'" -p cpu=4 -p core=31 -p cpuset=14 -p gpu=8 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=3 # This GPU is mapped on /dev/nvidia3
 oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' AND resource_id='35' AND type='default'" -p cpu=4 -p core=32 -p cpuset=15 -p gpu=8 -p gpu_model='GeForce RTX 2080 Ti' -p gpudevice=3 # This GPU is mapped on /dev/nvidia3
-      TXT
+TXT
 
       expected_clusterb3_cmds = <<-TXT
 oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' and type='default'" -p ip='172.16.64.2' -p cluster='clusterb' -p nodemodel='Dell PowerEdge T640' -p virtual='ivt' -p cpuarch='x86_64' -p cpucore=8 -p cputype='Intel Xeon Silver 4110' -p cpufreq='2.1' -p disktype='SATA' -p eth_count=1 -p eth_rate=10 -p ib_count=0 -p ib_rate=0 -p ib='NO' -p opa_count=0 -p opa_rate=0 -p opa='NO' -p myri_count=0 -p myri_rate=0 -p myri='NO' -p memcore=8192 -p memcpu=65536 -p memnode=131072 -p gpu_count=4 -p mic='NO' -p wattmeter='MULTIPLE' -p cluster_priority=201906 -p max_walltime=86400 -p production='YES' -p maintenance='NO' -p disk_reservation_count=3
-      TXT
+TXT
 
       generator_output = capture do
         generate_oar_properties(options)
@@ -890,11 +943,11 @@ oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' and type='default'"
 
       expected_clusterb1_diff = <<-TXT
   clusterb-1: OK
-      TXT
+TXT
 
       expected_clusterb2_diff = <<-TXT
   clusterb-2: OK
-      TXT
+TXT
 
       expected_clusterb3_diff = <<-TXT
   ["clusterb-1", "sdb.clusterb-1"]: OK
@@ -903,7 +956,7 @@ oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' and type='default'"
   ["clusterb-2", "sdb.clusterb-2"]: OK
   ["clusterb-2", "sdc.clusterb-2"]: OK
   ["clusterb-2", "sdd.clusterb-2"]: OK
-      TXT
+TXT
 
       generator_output = capture do
         generate_oar_properties(options)
@@ -914,4 +967,372 @@ oarnodesetting --sql "host='clusterb-2.fakesite.grid5000.fr' and type='default'"
       expect(generator_output[:stdout]).to include(expected_clusterb3_diff)
     end
   end
+
+  context 'interracting with an empty OAR server (without gpu)' do
+    before do
+      prepare_stubs("dump_oar_api_empty_server.json", "load_data_hierarchy_stubbed_data_without_gpu.json")
+    end
+
+    it 'should generate correctly a table of nodes' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => true,
+          :print => false,
+          :update => false,
+          :diff => false,
+          :site => "fakesite",
+          :clusters => ["clusterc"]
+      }
+
+      expected_header = <<-TXT
++---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
+|   cluster | host                 | cpu   | core  | cpuset   | gpu  | gpudevice            | cpumodel                       | gpumodel                      |
++---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
+TXT
+
+      expected_clusterc1_desc = <<-TXT
+|  clusterc | clusterc-1           | 1     | 1     | 0        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 2     | 1        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 3     | 2        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 4     | 3        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 5     | 4        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 6     | 5        |      |                      | Intel Xeon Silver 4110         |                               |
+TXT
+
+      expected_clusterc2_desc = <<-TXT
+|  clusterc | clusterc-2           | 4     | 26    | 9        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 27    | 10       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 28    | 11       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 29    | 12       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 30    | 13       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 31    | 14       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 32    | 15       |      |                      | Intel Xeon Silver 4110         |                               |
+TXT
+
+      generator_output = capture do
+        generate_oar_properties(options)
+      end
+
+      expect(generator_output[:stdout]).to include(expected_header)
+      expect(generator_output[:stdout]).to include(expected_clusterc1_desc)
+      expect(generator_output[:stdout]).to include(expected_clusterc2_desc)
+    end
+
+    it 'should generate correctly all the commands to update OAR' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => false,
+          :print => true,
+          :update => false,
+          :diff => false,
+          :site => "fakesite",
+          :clusters => ["clusterc"]
+      }
+
+      expected_header = <<-TXT
+#############################################
+# Create OAR properties that were created by 'oar_resources_add'
+#############################################
+property_exist 'host' || oarproperty -a host --varchar
+property_exist 'cpu' || oarproperty -a cpu
+property_exist 'core' || oarproperty -a core
+property_exist 'gpudevice' || oarproperty -a gpudevice
+property_exist 'gpu' || oarproperty -a gpu
+property_exist 'gpu_model' || oarproperty -a gpu_model --varchar
+TXT
+
+      expected_clusterc1_cmds = <<-TXT
+###################################
+# clusterc-1.fakesite.grid5000.fr
+###################################
+oarnodesetting -a -h 'clusterc-1.fakesite.grid5000.fr' -p host='clusterc-1.fakesite.grid5000.fr' -p cpu=1 -p core=1 -p cpuset=0
+oarnodesetting -a -h 'clusterc-1.fakesite.grid5000.fr' -p host='clusterc-1.fakesite.grid5000.fr' -p cpu=1 -p core=2 -p cpuset=1
+oarnodesetting -a -h 'clusterc-1.fakesite.grid5000.fr' -p host='clusterc-1.fakesite.grid5000.fr' -p cpu=1 -p core=3 -p cpuset=2
+TXT
+
+
+
+      expected_clusterc2_cmds = <<-TXT
+oarnodesetting -a -h 'clusterc-2.fakesite.grid5000.fr' -p host='clusterc-2.fakesite.grid5000.fr' -p cpu=4 -p core=29 -p cpuset=12
+oarnodesetting -a -h 'clusterc-2.fakesite.grid5000.fr' -p host='clusterc-2.fakesite.grid5000.fr' -p cpu=4 -p core=30 -p cpuset=13
+oarnodesetting -a -h 'clusterc-2.fakesite.grid5000.fr' -p host='clusterc-2.fakesite.grid5000.fr' -p cpu=4 -p core=31 -p cpuset=14
+oarnodesetting -a -h 'clusterc-2.fakesite.grid5000.fr' -p host='clusterc-2.fakesite.grid5000.fr' -p cpu=4 -p core=32 -p cpuset=15
+TXT
+      expected_clusterc3_cmds = <<-TXT
+oarnodesetting --sql "host='clusterc-2.fakesite.grid5000.fr' and type='default'" -p ip='172.16.64.2' -p cluster='clusterc' -p nodemodel='Dell PowerEdge T640' -p virtual='ivt' -p cpuarch='x86_64' -p cpucore=8 -p cputype='Intel Xeon Silver 4110' -p cpufreq='2.1' -p disktype='SATA' -p eth_count=1 -p eth_rate=10 -p ib_count=0 -p ib_rate=0 -p ib='NO' -p opa_count=0 -p opa_rate=0 -p opa='NO' -p myri_count=0 -p myri_rate=0 -p myri='NO' -p memcore=8192 -p memcpu=65536 -p memnode=131072 -p gpu_count=0 -p mic='NO' -p wattmeter='MULTIPLE' -p cluster_priority=201906 -p max_walltime=86400 -p production='YES' -p maintenance='NO' -p disk_reservation_count=3
+TXT
+
+
+      generator_output = capture do
+        generate_oar_properties(options)
+      end
+
+      expect(generator_output[:stdout]).to include(expected_header)
+      expect(generator_output[:stdout]).to include(expected_clusterc1_cmds)
+      expect(generator_output[:stdout]).to include(expected_clusterc2_cmds)
+      expect(generator_output[:stdout]).to include(expected_clusterc3_cmds)
+    end
+
+    it 'should generate correctly a diff with the OAR server' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => false,
+          :print => false,
+          :update => false,
+          :diff => true,
+          :site => "fakesite",
+          :clusters => ["clusterc"],
+          :verbose => 2
+      }
+
+      expected_clusterc1_diff = <<-TXT
+  clusterc-1: new node !
+    ["+", "cluster", "clusterc"]
+    ["+", "cluster_priority", 201906]
+    ["+", "cpuarch", "x86_64"]
+    ["+", "cpucore", 8]
+    ["+", "cpufreq", "2.1"]
+    ["+", "cputype", "Intel Xeon Silver 4110"]
+    ["+", "disk_reservation_count", 3]
+    ["+", "disktype", "SATA"]
+    ["+", "eth_count", 1]
+    ["+", "eth_rate", 10]
+    ["+", "gpu_count", 0]
+    ["+", "ib", "NO"]
+    ["+", "ib_count", 0]
+    ["+", "ib_rate", 0]
+    ["+", "ip", "172.16.64.1"]
+    ["+", "maintenance", "NO"]
+    ["+", "max_walltime", 86400]
+    ["+", "memcore", 8192]
+    ["+", "memcpu", 65536]
+    ["+", "memnode", 131072]
+    ["+", "mic", "NO"]
+    ["+", "myri", "NO"]
+    ["+", "myri_count", 0]
+    ["+", "myri_rate", 0]
+    ["+", "nodemodel", "Dell PowerEdge T640"]
+    ["+", "opa", "NO"]
+    ["+", "opa_count", 0]
+    ["+", "opa_rate", 0]
+    ["+", "production", "YES"]
+    ["+", "switch", nil]
+    ["+", "virtual", "ivt"]
+    ["+", "wattmeter", "MULTIPLE"]
+TXT
+
+      expected_clusterc2_diff = <<-TXT
+  clusterc-2: new node !
+    ["+", "cluster", "clusterc"]
+    ["+", "cluster_priority", 201906]
+    ["+", "cpuarch", "x86_64"]
+    ["+", "cpucore", 8]
+    ["+", "cpufreq", "2.1"]
+    ["+", "cputype", "Intel Xeon Silver 4110"]
+    ["+", "disk_reservation_count", 3]
+    ["+", "disktype", "SATA"]
+    ["+", "eth_count", 1]
+    ["+", "eth_rate", 10]
+    ["+", "gpu_count", 0]
+    ["+", "ib", "NO"]
+    ["+", "ib_count", 0]
+    ["+", "ib_rate", 0]
+    ["+", "ip", "172.16.64.2"]
+    ["+", "maintenance", "NO"]
+    ["+", "max_walltime", 86400]
+    ["+", "memcore", 8192]
+    ["+", "memcpu", 65536]
+    ["+", "memnode", 131072]
+    ["+", "mic", "NO"]
+    ["+", "myri", "NO"]
+    ["+", "myri_count", 0]
+    ["+", "myri_rate", 0]
+    ["+", "nodemodel", "Dell PowerEdge T640"]
+    ["+", "opa", "NO"]
+    ["+", "opa_count", 0]
+    ["+", "opa_rate", 0]
+    ["+", "production", "YES"]
+    ["+", "switch", nil]
+    ["+", "virtual", "ivt"]
+    ["+", "wattmeter", "MULTIPLE"]
+TXT
+
+      generator_output = capture do
+        generate_oar_properties(options)
+      end
+
+      expect(generator_output[:stdout]).to include(expected_clusterc1_diff)
+      expect(generator_output[:stdout]).to include(expected_clusterc2_diff)
+    end
+  end
+
+  context 'interracting with a configured OAR server (without gpu)' do
+    before do
+      prepare_stubs("dump_oar_api_configured_server_without_gpu.json", "load_data_hierarchy_stubbed_data_without_gpu.json")
+    end
+
+    it 'should generate correctly a table of nodes' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => true,
+          :print => false,
+          :update => false,
+          :diff => false,
+          :site => "fakesite",
+          :clusters => ["clusterc"]
+      }
+
+      expected_header = <<-TXT
++---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
+|   cluster | host                 | cpu   | core  | cpuset   | gpu  | gpudevice            | cpumodel                       | gpumodel                      |
++---------- + -------------------- + ----- + ----- + -------- + ---- + -------------------- + ------------------------------ + ------------------------------+
+TXT
+
+      expected_clusterc1_desc = <<-TXT
+|  clusterc | clusterc-1           | 1     | 1     | 0        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 2     | 1        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 3     | 2        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 4     | 3        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 5     | 4        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-1           | 1     | 6     | 5        |      |                      | Intel Xeon Silver 4110         |                               |
+TXT
+
+      expected_clusterc2_desc = <<-TXT
+|  clusterc | clusterc-2           | 4     | 26    | 9        |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 27    | 10       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 28    | 11       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 29    | 12       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 30    | 13       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 31    | 14       |      |                      | Intel Xeon Silver 4110         |                               |
+|  clusterc | clusterc-2           | 4     | 32    | 15       |      |                      | Intel Xeon Silver 4110         |                               |
+TXT
+      generator_output = capture do
+        generate_oar_properties(options)
+      end
+
+      expect(generator_output[:stdout]).to include(expected_header)
+      expect(generator_output[:stdout]).to include(expected_clusterc1_desc)
+      expect(generator_output[:stdout]).to include(expected_clusterc2_desc)
+    end
+
+    it 'should generate correctly all the commands to update OAR' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => false,
+          :print => true,
+          :update => false,
+          :diff => false,
+          :site => "fakesite",
+          :clusters => ["clusterc"]
+      }
+
+      expected_header = <<-TXT
+#############################################
+# Create OAR properties that were created by 'oar_resources_add'
+#############################################
+property_exist 'host' || oarproperty -a host --varchar
+property_exist 'cpu' || oarproperty -a cpu
+property_exist 'core' || oarproperty -a core
+property_exist 'gpudevice' || oarproperty -a gpudevice
+property_exist 'gpu' || oarproperty -a gpu
+property_exist 'gpu_model' || oarproperty -a gpu_model --varchar
+TXT
+
+      expected_clusterc1_cmds = <<-TXT
+###################################
+# clusterc-1.fakesite.grid5000.fr
+###################################
+oarnodesetting --sql "host='clusterc-1.fakesite.grid5000.fr' AND resource_id='1' AND type='default'" -p cpu=1 -p core=1 -p cpuset=0
+oarnodesetting --sql "host='clusterc-1.fakesite.grid5000.fr' AND resource_id='2' AND type='default'" -p cpu=1 -p core=2 -p cpuset=1
+oarnodesetting --sql "host='clusterc-1.fakesite.grid5000.fr' AND resource_id='3' AND type='default'" -p cpu=1 -p core=3 -p cpuset=2
+TXT
+
+      expected_clusterc2_cmds = <<-TXT
+oarnodesetting --sql "host='clusterc-2.fakesite.grid5000.fr' AND resource_id='32' AND type='default'" -p cpu=4 -p core=29 -p cpuset=12
+oarnodesetting --sql "host='clusterc-2.fakesite.grid5000.fr' AND resource_id='33' AND type='default'" -p cpu=4 -p core=30 -p cpuset=13
+oarnodesetting --sql "host='clusterc-2.fakesite.grid5000.fr' AND resource_id='34' AND type='default'" -p cpu=4 -p core=31 -p cpuset=14
+oarnodesetting --sql "host='clusterc-2.fakesite.grid5000.fr' AND resource_id='35' AND type='default'" -p cpu=4 -p core=32 -p cpuset=15
+TXT
+      expected_clusterc3_cmds = <<-TXT
+oarnodesetting --sql "host='clusterc-2.fakesite.grid5000.fr' and type='default'" -p ip='172.16.64.2' -p cluster='clusterc' -p nodemodel='Dell PowerEdge T640' -p virtual='ivt' -p cpuarch='x86_64' -p cpucore=8 -p cputype='Intel Xeon Silver 4110' -p cpufreq='2.1' -p disktype='SATA' -p eth_count=1 -p eth_rate=10 -p ib_count=0 -p ib_rate=0 -p ib='NO' -p opa_count=0 -p opa_rate=0 -p opa='NO' -p myri_count=0 -p myri_rate=0 -p myri='NO' -p memcore=8192 -p memcpu=65536 -p memnode=131072 -p gpu_count=0 -p mic='NO' -p wattmeter='MULTIPLE' -p cluster_priority=201906 -p max_walltime=86400 -p production='YES' -p maintenance='NO' -p disk_reservation_count=3
+TXT
+
+      generator_output = capture do
+        generate_oar_properties(options)
+      end
+
+      expect(generator_output[:stdout]).to include(expected_header)
+      expect(generator_output[:stdout]).to include(expected_clusterc1_cmds)
+      expect(generator_output[:stdout]).to include(expected_clusterc2_cmds)
+      expect(generator_output[:stdout]).to include(expected_clusterc3_cmds)
+    end
+
+    it 'should generate correctly a diff with the OAR server' do
+
+      uri = URI(conf["uri"])
+
+      response = Net::HTTP.get(uri)
+
+      expect(response).to be_an_instance_of(String)
+
+      options = {
+          :table => false,
+          :print => false,
+          :update => false,
+          :diff => true,
+          :site => "fakesite",
+          :clusters => ["clusterc"],
+          :verbose => 2
+      }
+
+      expected_clusterc1_diff = <<-TXT
+Output format: [ '-', 'key', 'value'] for missing, [ '+', 'key', 'value'] for added, ['~', 'key', 'old value', 'new value'] for changed
+  clusterc-1: OK
+  clusterc-2: OK
+  ["clusterc-1", "sdb.clusterc-1"]: OK
+  ["clusterc-1", "sdc.clusterc-1"]: OK
+  ["clusterc-1", "sdd.clusterc-1"]: OK
+  ["clusterc-2", "sdb.clusterc-2"]: OK
+  ["clusterc-2", "sdc.clusterc-2"]: OK
+  ["clusterc-2", "sdd.clusterc-2"]: OK
+TXT
+
+
+      generator_output = capture do
+        generate_oar_properties(options)
+      end
+
+      expect(generator_output[:stdout]).to include(expected_clusterc1_diff)
+    end
+  end
 end
diff --git a/spec/stub_oar_properties/dump_oar_api_configured_server_without_gpu.json b/spec/stub_oar_properties/dump_oar_api_configured_server_without_gpu.json
new file mode 100644
index 0000000000000000000000000000000000000000..83e5bd6b14119b18b92dbce3d9065436766676a5
--- /dev/null
+++ b/spec/stub_oar_properties/dump_oar_api_configured_server_without_gpu.json
@@ -0,0 +1,2978 @@
+{
+   "links" : [
+      {
+         "href" : "//oarapi/resources/details.json?limit=999999&offset=0",
+         "rel" : "self"
+      }
+   ],
+   "total" : 38,
+   "offset" : 0,
+   "items" : [
+      {
+         "opa" : "NO",
+         "myri_count" : 0,
+         "cluster" : "clusterc",
+         "cputype" : "Intel Xeon Silver 4110",
+         "api_timestamp" : 1569605253,
+         "cpuset" : 0,
+         "ib_count" : 0,
+         "state" : "Alive",
+         "cpuarch" : "x86_64",
+         "eth_rate" : 10,
+         "nodemodel" : "Dell PowerEdge T640",
+         "gpu" : null,
+         "max_walltime" : 86400,
+         "besteffort" : "YES",
+         "host" : "clusterc-1.fakesite.grid5000.fr",
+         "maintenance" : "NO",
+         "cpucore" : 8,
+         "gpu_model" : null,
+         "opa_rate" : 0,
+         "state_num" : 1,
+         "myri" : "NO",
+         "disktype" : "SATA",
+         "myri_rate" : 0,
+         "next_finaud_decision" : "NO",
+         "cpu" : 1,
+         "drain" : "NO",
+         "core" : 1,
+         "scheduler_priority" : 0,
+         "type" : "default",
+         "cpufreq" : "2.1",
+         "disk_reservation_count" : 3,
+         "eth_count" : 1,
+         "finaud_decision" : "NO",
+         "last_available_upto" : 0,
+         "expiry_date" : 0,
+         "ip" : "172.16.64.1",
+         "suspended_jobs" : "NO",
+         "available_upto" : 2147483647,
+         "deploy" : "NO",
+         "links" : [
+            {
+               "href" : "//oarapi/resources/nodes/clusterc-1.fakesite.grid5000.fr",
+               "rel" : "member",
+               "title" : "node"
+            },
+            {
+               "rel" : "self",
+               "href" : "//oarapi/resources/1"
+            },
+            {
+               "rel" : "collection",
+               "title" : "jobs",
+               "href" : "//oarapi/resources/1/jobs"
+            }
+         ],
+         "last_job_date" : 0,
+         "id" : 1,
+         "memnode" : 131072,
+         "cluster_priority" : 201906,
+         "disk" : null,
+         "switch" : null,
+         "gpu_count" : 0,
+         "wattmeter" : "MULTIPLE",
+         "memcore" : 8192,
+         "diskpath" : null,
+         "virtual" : "ivt",
+         "network_address" : "clusterc-1.fakesite.grid5000.fr",
+         "ib_rate" : 0,
+         "mic" : "NO",
+         "gpudevice" : null,
+         "desktop_computing" : "NO",
+         "next_state" : "UnChanged",
+         "memcpu" : 65536,
+         "opa_count" : 0,
+         "production" : "YES",
+         "ib" : "NO"
+      },
+      {
+         "cpu" : 1,
+         "next_finaud_decision" : "NO",
+         "scheduler_priority" : 0,
+         "type" : "default",
+         "core" : 2,
+         "drain" : "NO",
+         "disktype" : "SATA",
+         "myri" : "NO",
+         "myri_rate" : 0,
+         "last_available_upto" : 0,
+         "expiry_date" : 0,
+         "disk_reservation_count" : 3,
+         "cpufreq" : "2.1",
+         "finaud_decision" : "NO",
+         "eth_count" : 1,
+         "state" : "Alive",
+         "ib_count" : 0,
+         "cpuset" : 1,
+         "eth_rate" : 10,
+         "cpuarch" : "x86_64",
+         "cluster" : "clusterc",
+         "cputype" : "Intel Xeon Silver 4110",
+         "myri_count" : 0,
+         "opa" : "NO",
+         "api_timestamp" : 1569605253,
+         "maintenance" : "NO",
+         "gpu_model" : null,
+         "host" : "clusterc-1.fakesite.grid5000.fr",
+         "cpucore" : 8,
+         "besteffort" : "YES",
+         "state_num" : 1,
+         "opa_rate" : 0,
+         "gpu" : null,
+         "max_walltime" : 86400,
+         "nodemodel" : "Dell PowerEdge T640",
+         "gpudevice" : null,
+         "desktop_computing" : "NO",
+         "mic" : "NO",
+         "ib_rate" : 0,
+         "network_address" : "clusterc-1.fakesite.grid5000.fr",
+         "virtual" : "ivt",
+         "ib" : "NO",
+         "production" : "YES",
+         "memcpu" : 65536,
+         "next_state" : "UnChanged",
+         "opa_count" : 0,
+         "id" : 2,
+         "links" : [
+            {
+               "href" : "//oarapi/resources/nodes/clusterc-1.fakesite.grid5000.fr",
+               "rel" : "member",
+               "title" : "node"
+            },
+            {
+               "rel" : "self",
+               "href" : "//oarapi/resources/2"
+            },
+            {
+               "href" : "//oarapi/resources/2/jobs",
+               "title" : "jobs",
+               "rel" : "collection"
+            }
+         ],
+         "last_job_date" : 0,
+         "memnode" : 131072,
+         "cluster_priority" : 201906,
+         "ip" : "172.16.64.1",
+         "available_upto" : 2147483647,
+         "deploy" : "NO",
+         "suspended_jobs" : "NO",
+         "memcore" : 8192,
+         "gpu_count" : 0,
+         "wattmeter" : "MULTIPLE",
+         "diskpath" : null,
+         "disk" : null,
+         "switch" : null
+      },
+      {
+         "disk" : null,
+         "switch" : null,
+         "memcore" : 8192,
+         "gpu_count" : 0,
+         "wattmeter" : "MULTIPLE",
+         "diskpath" : null,
+         "ip" : "172.16.64.1",
+         "deploy" : "NO",
+         "available_upto" : 2147483647,
+         "suspended_jobs" : "NO",
+         "links" : [
+            {
+               "rel" : "member",
+               "title" : "node",
+               "href" : "//oarapi/resources/nodes/clusterc-1.fakesite.grid5000.fr"
+            },
+            {
+               "rel" : "self",
+               "href" : "//oarapi/resources/3"
+            },
+            {
+               "href" : "//oarapi/resources/3/jobs",
+               "rel" : "collection",
+               "title" : "jobs"
+            }
+         ],
+         "id" : 3,
+         "last_job_date" : 0,
+         "cluster_priority" : 201906,
+         "memnode" : 131072,
+         "next_state" : "UnChanged",
+         "memcpu" : 65536,
+         "opa_count" : 0,
+         "ib" : "NO",
+         "production" : "YES",
+         "ib_rate" : 0,
+         "virtual" : "ivt",
+         "network_address" : "clusterc-1.fakesite.grid5000.fr",
+         "desktop_computing" : "NO",
+         "gpudevice" : null,
+         "mic" : "NO",
+         "gpu" : null,
+         "max_walltime" : 86400,
+         "nodemodel" : "Dell PowerEdge T640",
+         "gpu_model" : null,
+         "maintenance" : "NO",
+         "host" : "clusterc-1.fakesite.grid5000.fr",
+         "cpucore" : 8,
+         "besteffort" : "YES",
+         "state_num" : 1,
+         "opa_rate" : 0,
+         "cputype" : "Intel Xeon Silver 4110",
+         "cluster" : "clusterc",
+         "opa" : "NO",
+         "myri_count" : 0,
+         "api_timestamp" : 1569605253,
+         "state" : "Alive",
+         "ib_count" : 0,
+         "cpuset" : 2,
+         "cpuarch" : "x86_64",
+         "eth_rate" : 10,
+         "disk_reservation_count" : 3,
+         "cpufreq" : "2.1",
+         "finaud_decision" : "NO",
+         "eth_count" : 1,
+         "last_available_upto" : 0,
+         "expiry_date" : 0,
+         "disktype" : "SATA",
+         "myri" : "NO",
+         "myri_rate" : 0,
+         "cpu" : 1,
+         "next_finaud_decision" : "NO",
+         "scheduler_priority" : 0,
+         "type" : "default",
+         "drain" : "NO",
+         "core" : 3
+      },
+      {
+         "cluster_priority" : 201906,
+         "memnode" : 131072,
+         "links" : [
+            {
+               "href" : "//oarapi/resources/nodes/clusterc-1.fakesite.grid5000.fr",
+               "title" : "node",
+               "rel" : "member"
+            },
+            {
+               "rel" : "self",
+               "href" : "//oarapi/resources/4"
+            },
+            {
+               "href" : "//oarapi/resources/4/jobs",
+               "title" : "jobs",
+               "rel" : "collection"
+            }
+         ],
+         "last_job_date" : 0,
+         "id" : 4,
+         "available_upto" : 2147483647,
+         "deploy" : "NO",
+         "suspended_jobs" : "NO",
+         "ip" : "172.16.64.1",
+         "diskpath" : null,
+         "memcore" : 8192,
+         "gpu_count" : 0,
+         "wattmeter" : "MULTIPLE",
+         "switch" : null,
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+         "mic" : null
+      },
+      {
+         "cputype" : null,
+         "cluster" : "clusterc",
+         "myri_count" : null,
+         "opa" : null,
+         "api_timestamp" : 1569605253,
+         "ib_count" : null,
+         "state" : "Alive",
+         "cpuset" : -1,
+         "eth_rate" : null,
+         "cpuarch" : null,
+         "gpu" : null,
+         "max_walltime" : null,
+         "nodemodel" : null,
+         "host" : "clusterc-2.fakesite.grid5000.fr",
+         "maintenance" : "NO",
+         "gpu_model" : null,
+         "cpucore" : null,
+         "besteffort" : "YES",
+         "state_num" : 1,
+         "opa_rate" : null,
+         "myri" : null,
+         "disktype" : null,
+         "myri_rate" : null,
+         "next_finaud_decision" : "NO",
+         "cpu" : null,
+         "scheduler_priority" : 0,
+         "type" : "disk",
+         "core" : null,
+         "drain" : "NO",
+         "disk_reservation_count" : null,
+         "cpufreq" : null,
+         "finaud_decision" : "NO",
+         "eth_count" : null,
+         "last_available_upto" : 0,
+         "expiry_date" : 0,
+         "ip" : null,
+         "deploy" : "YES",
+         "available_upto" : 0,
+         "suspended_jobs" : "NO",
+         "id" : 38,
+         "links" : [
+            {
+               "href" : "//oarapi/resources/nodes/",
+               "title" : "node",
+               "rel" : "member"
+            },
+            {
+               "rel" : "self",
+               "href" : "//oarapi/resources/38"
+            },
+            {
+               "rel" : "collection",
+               "title" : "jobs",
+               "href" : "//oarapi/resources/38/jobs"
+            }
+         ],
+         "last_job_date" : 0,
+         "memnode" : null,
+         "cluster_priority" : null,
+         "disk" : "sdd.clusterc-2",
+         "switch" : null,
+         "memcore" : null,
+         "gpu_count" : null,
+         "wattmeter" : null,
+         "diskpath" : "/dev/disk/by-path/pci-0000:02:00.0-scsi-0:0:3:0",
+         "ib_rate" : null,
+         "network_address" : "",
+         "virtual" : null,
+         "gpudevice" : null,
+         "desktop_computing" : "NO",
+         "mic" : null,
+         "memcpu" : null,
+         "next_state" : "UnChanged",
+         "opa_count" : null,
+         "production" : "YES",
+         "ib" : null
+      }
+   ],
+   "api_timestamp" : 1569605253
+}
+
diff --git a/spec/stub_oar_properties/load_data_hierarchy_stubbed_data_without_gpu.json b/spec/stub_oar_properties/load_data_hierarchy_stubbed_data_without_gpu.json
new file mode 100644
index 0000000000000000000000000000000000000000..88f43f9bb1519ddf38045bed9f5b2c67ebf6ba91
--- /dev/null
+++ b/spec/stub_oar_properties/load_data_hierarchy_stubbed_data_without_gpu.json
@@ -0,0 +1,1984 @@
+{
+  "sites": {
+    "fakesite": {
+      "clusters": {
+        "clustera": {
+          "nodes": {
+            "clustera-1": {
+              "architecture": {
+                "nb_cores": 16,
+                "nb_procs": 2,
+                "nb_threads": 32,
+                "platform_type": "x86_64"
+              },
+              "bios": {
+                "release_date": "06/14/2019",
+                "vendor": "Dell Inc.",
+                "version": "2.2.11"
+              },
+              "chassis": {
+                "manufacturer": "Dell Inc.",
+                "name": "PowerEdge T640",
+                "serial": "FL1CBX2"
+              },
+              "cpuset_mapping": "continuous",
+              "gpu": {
+                "gpu": true,
+                "gpu_cores": 17408,
+                "gpu_count": 4,
+                "gpu_model": "RTX 2080 Ti",
+                "gpu_vendor": "Nvidia"
+              },
+              "gpu_devices": {
+                "nvidia0": {
+                  "cpu_affinity": 0,
+                  "device": "/dev/nvidia0",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.17.00.B2",
+                  "vendor": "Nvidia"
+                },
+                "nvidia1": {
+                  "cpu_affinity": 0,
+                  "device": "/dev/nvidia1",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.17.00.B2",
+                  "vendor": "Nvidia"
+                },
+                "nvidia2": {
+                  "cpu_affinity": 1,
+                  "device": "/dev/nvidia2",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.0B.40.09",
+                  "vendor": "Nvidia"
+                },
+                "nvidia3": {
+                  "cpu_affinity": 1,
+                  "device": "/dev/nvidia3",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.17.00.B2",
+                  "vendor": "Nvidia"
+                }
+              },
+              "main_memory": {
+                "ram_size": 137438953472
+              },
+              "monitoring": {
+                "wattmeter": "multiple"
+              },
+              "network_adapters": [
+                {
+                  "bridged": false,
+                  "device": "eth0",
+                  "driver": "bnxt_en",
+                  "enabled": false,
+                  "firmware_version": "214.0.173/1.9.2 pkg 21.40.20.0",
+                  "interface": "Ethernet",
+                  "mac": "f4:02:70:9a:3f:64",
+                  "management": false,
+                  "model": "BCM57416 NetXtreme-E 10GBase-T RDMA Ethernet Controller",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "eno1",
+                  "vendor": "Broadcom"
+                },
+                {
+                  "bridged": false,
+                  "device": "eth1",
+                  "driver": "bnxt_en",
+                  "enabled": false,
+                  "firmware_version": "214.0.173/1.9.2 pkg 21.40.20.0",
+                  "interface": "Ethernet",
+                  "mac": "f4:02:70:9a:3f:65",
+                  "management": false,
+                  "model": "BCM57416 NetXtreme-E 10GBase-T RDMA Ethernet Controller",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "eno2d1",
+                  "vendor": "Broadcom"
+                },
+                {
+                  "bridged": true,
+                  "device": "eth2",
+                  "driver": "i40e",
+                  "enabled": true,
+                  "firmware_version": "6.80 0x80003d72 18.8.9",
+                  "interface": "Ethernet",
+                  "ip": "172.16.64.1",
+                  "mac": "f8:f2:1e:60:41:20",
+                  "management": false,
+                  "model": "Ethernet Controller X710 for 10GbE SFP+",
+                  "mountable": true,
+                  "mounted": true,
+                  "name": "enp137s0f0",
+                  "network_address": "clustera-1.fakesite.grid5000.fr",
+                  "rate": 10000000000,
+                  "switch": "gw-fakesite",
+                  "switch_port": "Ethernet6/39",
+                  "vendor": "Intel"
+                },
+                {
+                  "bridged": false,
+                  "device": "eth3",
+                  "driver": "i40e",
+                  "enabled": false,
+                  "firmware_version": "6.80 0x80003d72 18.8.9",
+                  "interface": "Ethernet",
+                  "mac": "f8:f2:1e:60:41:21",
+                  "management": false,
+                  "model": "Ethernet Controller X710 for 10GbE SFP+",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "enp137s0f1",
+                  "vendor": "Intel"
+                },
+                {
+                  "device": "bmc",
+                  "enabled": true,
+                  "interface": "Ethernet",
+                  "ip": "172.17.64.1",
+                  "mac": "f4:02:70:9a:3f:74",
+                  "management": true,
+                  "mountable": false,
+                  "mounted": false,
+                  "network_address": "clustera-1-bmc.fakesite.grid5000.fr"
+                }
+              ],
+              "operating_system": {
+                "cstate_driver": "intel_idle",
+                "cstate_governor": "menu",
+                "ht_enabled": true,
+                "pstate_driver": "intel_pstate",
+                "pstate_governor": "performance",
+                "turboboost_enabled": true
+              },
+              "performance": {
+                "core_flops": 17713000000,
+                "node_flops": 202670000000
+              },
+              "processor": {
+                "cache_l1": null,
+                "cache_l1d": 32768,
+                "cache_l1i": 32768,
+                "cache_l2": 1048576,
+                "cache_l3": 11534336,
+                "clock_speed": 2100000000,
+                "ht_capable": true,
+                "instruction_set": "x86-64",
+                "microarchitecture": "Skylake",
+                "model": "Intel Xeon",
+                "other_description": "Intel(R) Xeon(R) Silver 4110 CPU @ 2.10GHz",
+                "vendor": "Intel",
+                "version": "Silver 4110"
+              },
+              "sensors": {
+                "power": {
+                  "available": true,
+                  "via": {
+                    "api": {
+                      "metric": "power"
+                    },
+                    "pdu": [
+                      {
+                        "port": 1,
+                        "uid": "clustera-pdu1"
+                      },
+                      {
+                        "port": 1,
+                        "uid": "clustera-pdu2"
+                      }
+                    ]
+                  }
+                }
+              },
+              "storage_devices": [
+                {
+                  "by_id": "/dev/disk/by-id/wwn-0x6f402700aefea00024afe4c307e10af8",
+                  "by_path": "/dev/disk/by-path/pci-0000:19:00.0-scsi-0:2:0:0",
+                  "device": "sda",
+                  "driver": "megaraid_sas",
+                  "firmware_version": 4.29,
+                  "interface": "SATA",
+                  "model": "PERC H330 Adp",
+                  "size": 479559942144,
+                  "storage": "SSD",
+                  "vendor": "Dell (Raid)"
+                }
+              ],
+              "supported_job_types": {
+                "besteffort": true,
+                "deploy": true,
+                "max_walltime": 86400,
+                "queues": [
+                  "admin",
+                  "production"
+                ],
+                "virtual": "ivt"
+              },
+              "type": "node",
+              "uid": "clustera-1"
+            },
+            "clustera-2": {
+              "architecture": {
+                "nb_cores": 16,
+                "nb_procs": 2,
+                "nb_threads": 32,
+                "platform_type": "x86_64"
+              },
+              "bios": {
+                "release_date": "06/14/2019",
+                "vendor": "Dell Inc.",
+                "version": "2.2.11"
+              },
+              "chassis": {
+                "manufacturer": "Dell Inc.",
+                "name": "PowerEdge T640",
+                "serial": "9L1CBX2"
+              },
+              "cpuset_mapping": "continuous",
+              "gpu": {
+                "gpu": true,
+                "gpu_cores": 17408,
+                "gpu_count": 4,
+                "gpu_model": "RTX 2080 Ti",
+                "gpu_vendor": "Nvidia"
+              },
+              "gpu_devices": {
+                "nvidia0": {
+                  "cpu_affinity": 0,
+                  "device": "/dev/nvidia0",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.17.00.B2",
+                  "vendor": "Nvidia"
+                },
+                "nvidia1": {
+                  "cpu_affinity": 0,
+                  "device": "/dev/nvidia1",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.0B.40.09",
+                  "vendor": "Nvidia"
+                },
+                "nvidia2": {
+                  "cpu_affinity": 1,
+                  "device": "/dev/nvidia2",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.0B.40.09",
+                  "vendor": "Nvidia"
+                },
+                "nvidia3": {
+                  "cpu_affinity": 1,
+                  "device": "/dev/nvidia3",
+                  "memory": 10989000000,
+                  "model": "GeForce RTX 2080 Ti",
+                  "power_default_limit": "250.00 W",
+                  "vbios_version": "90.02.17.00.AC",
+                  "vendor": "Nvidia"
+                }
+              },
+              "main_memory": {
+                "ram_size": 137438953472
+              },
+              "monitoring": {
+                "wattmeter": "multiple"
+              },
+              "network_adapters": [
+                {
+                  "bridged": false,
+                  "device": "eth0",
+                  "driver": "bnxt_en",
+                  "enabled": false,
+                  "firmware_version": "214.0.173/1.9.2 pkg 21.40.20.0",
+                  "interface": "Ethernet",
+                  "mac": "f4:02:70:9a:48:d8",
+                  "management": false,
+                  "model": "BCM57416 NetXtreme-E 10GBase-T RDMA Ethernet Controller",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "eno1",
+                  "vendor": "Broadcom"
+                },
+                {
+                  "bridged": false,
+                  "device": "eth1",
+                  "driver": "bnxt_en",
+                  "enabled": false,
+                  "firmware_version": "214.0.173/1.9.2 pkg 21.40.20.0",
+                  "interface": "Ethernet",
+                  "mac": "f4:02:70:9a:48:d9",
+                  "management": false,
+                  "model": "BCM57416 NetXtreme-E 10GBase-T RDMA Ethernet Controller",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "eno2d1",
+                  "vendor": "Broadcom"
+                },
+                {
+                  "bridged": true,
+                  "device": "eth2",
+                  "driver": "i40e",
+                  "enabled": true,
+                  "firmware_version": "6.80 0x80003d72 18.8.9",
+                  "interface": "Ethernet",
+                  "ip": "172.16.64.2",
+                  "mac": "f8:f2:1e:60:3f:a0",
+                  "management": false,
+                  "model": "Ethernet Controller X710 for 10GbE SFP+",
+                  "mountable": true,
+                  "mounted": true,
+                  "name": "enp137s0f0",
+                  "network_address": "clustera-2.fakesite.grid5000.fr",
+                  "rate": 10000000000,
+                  "switch": "gw-fakesite",
+                  "switch_port": "Ethernet6/40",
+                  "vendor": "Intel"
+                },
+                {
+                  "bridged": false,
+                  "device": "eth3",
+                  "driver": "i40e",
+                  "enabled": false,
+                  "firmware_version": "6.80 0x80003d72 18.8.9",
+                  "interface": "Ethernet",
+                  "mac": "f8:f2:1e:60:3f:a1",
+                  "management": false,
+                  "model": "Ethernet Controller X710 for 10GbE SFP+",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "enp137s0f1",
+                  "vendor": "Intel"
+                },
+                {
+                  "device": "bmc",
+                  "enabled": true,
+                  "interface": "Ethernet",
+                  "ip": "172.17.64.2",
+                  "mac": "f4:02:70:9a:48:e8",
+                  "management": true,
+                  "mountable": false,
+                  "mounted": false,
+                  "network_address": "clustera-2-bmc.fakesite.grid5000.fr"
+                }
+              ],
+              "operating_system": {
+                "cstate_driver": "intel_idle",
+                "cstate_governor": "menu",
+                "ht_enabled": true,
+                "pstate_driver": "intel_pstate",
+                "pstate_governor": "performance",
+                "turboboost_enabled": true
+              },
+              "performance": {
+                "core_flops": 17713000000,
+                "node_flops": 202670000000
+              },
+              "processor": {
+                "cache_l1": null,
+                "cache_l1d": 32768,
+                "cache_l1i": 32768,
+                "cache_l2": 1048576,
+                "cache_l3": 11534336,
+                "clock_speed": 2100000000,
+                "ht_capable": true,
+                "instruction_set": "x86-64",
+                "microarchitecture": "Skylake",
+                "model": "Intel Xeon",
+                "other_description": "Intel(R) Xeon(R) Silver 4110 CPU @ 2.10GHz",
+                "vendor": "Intel",
+                "version": "Silver 4110"
+              },
+              "sensors": {
+                "power": {
+                  "available": true,
+                  "via": {
+                    "api": {
+                      "metric": "power"
+                    },
+                    "pdu": [
+                      {
+                        "port": 6,
+                        "uid": "clustera-pdu1"
+                      },
+                      {
+                        "port": 6,
+                        "uid": "clustera-pdu2"
+                      }
+                    ]
+                  }
+                }
+              },
+              "storage_devices": [
+                {
+                  "by_id": "/dev/disk/by-id/wwn-0x6f402700aeff430024929b4003cd51d0",
+                  "by_path": "/dev/disk/by-path/pci-0000:19:00.0-scsi-0:2:0:0",
+                  "device": "sda",
+                  "driver": "megaraid_sas",
+                  "firmware_version": 4.29,
+                  "interface": "SATA",
+                  "model": "PERC H330 Adp",
+                  "size": 479559942144,
+                  "storage": "SSD",
+                  "vendor": "Dell (Raid)"
+                }
+              ],
+              "supported_job_types": {
+                "besteffort": true,
+                "deploy": true,
+                "max_walltime": 86400,
+                "queues": [
+                  "admin",
+                  "production"
+                ],
+                "virtual": "ivt"
+              },
+              "type": "node",
+              "uid": "clustera-2"
+            }
+          },
+          "created_at": "Fri, 07 Jun 2019 00:00:00 GMT",
+          "kavlan": false,
+          "model": "Dell PowerEdge T640",
+          "queues": [
+            "admin",
+            "production"
+          ],
+          "type": "cluster",
+          "uid": "clustera"
+        },
+        "clusterc": {
+          "nodes": {
+            "clusterc-1": {
+              "architecture": {
+                "nb_cores": 16,
+                "nb_procs": 2,
+                "nb_threads": 32,
+                "platform_type": "x86_64"
+              },
+              "bios": {
+                "release_date": "06/14/2019",
+                "vendor": "Dell Inc.",
+                "version": "2.2.11"
+              },
+              "chassis": {
+                "manufacturer": "Dell Inc.",
+                "name": "PowerEdge T640",
+                "serial": "FL1CBX2"
+              },
+              "cpuset_mapping": "continuous",
+              "gpu": {
+                "gpu": true,
+                "gpu_cores": 17408,
+                "gpu_count": 4,
+                "gpu_model": "RTX 2080 Ti",
+                "gpu_vendor": "Nvidia"
+              },
+              "main_memory": {
+                "ram_size": 137438953472
+              },
+              "monitoring": {
+                "wattmeter": "multiple"
+              },
+              "network_adapters": [
+                {
+                  "bridged": false,
+                  "device": "eth0",
+                  "driver": "bnxt_en",
+                  "enabled": false,
+                  "firmware_version": "214.0.173/1.9.2 pkg 21.40.20.0",
+                  "interface": "Ethernet",
+                  "mac": "f4:02:70:9a:3f:64",
+                  "management": false,
+                  "model": "BCM57416 NetXtreme-E 10GBase-T RDMA Ethernet Controller",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "eno1",
+                  "vendor": "Broadcom"
+                },
+                {
+                  "bridged": false,
+                  "device": "eth1",
+                  "driver": "bnxt_en",
+                  "enabled": false,
+                  "firmware_version": "214.0.173/1.9.2 pkg 21.40.20.0",
+                  "interface": "Ethernet",
+                  "mac": "f4:02:70:9a:3f:65",
+                  "management": false,
+                  "model": "BCM57416 NetXtreme-E 10GBase-T RDMA Ethernet Controller",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "eno2d1",
+                  "vendor": "Broadcom"
+                },
+                {
+                  "bridged": true,
+                  "device": "eth2",
+                  "driver": "i40e",
+                  "enabled": true,
+                  "firmware_version": "6.80 0x80003d72 18.8.9",
+                  "interface": "Ethernet",
+                  "ip": "172.16.64.1",
+                  "mac": "f8:f2:1e:60:41:20",
+                  "management": false,
+                  "model": "Ethernet Controller X710 for 10GbE SFP+",
+                  "mountable": true,
+                  "mounted": true,
+                  "name": "enp137s0f0",
+                  "network_address": "clusterc-1.fakesite.grid5000.fr",
+                  "rate": 10000000000,
+                  "switch": null,
+                  "switch_port": null,
+                  "vendor": "Intel"
+                },
+                {
+                  "bridged": false,
+                  "device": "eth3",
+                  "driver": "i40e",
+                  "enabled": false,
+                  "firmware_version": "6.80 0x80003d72 18.8.9",
+                  "interface": "Ethernet",
+                  "mac": "f8:f2:1e:60:41:21",
+                  "management": false,
+                  "model": "Ethernet Controller X710 for 10GbE SFP+",
+                  "mountable": false,
+                  "mounted": false,
+                  "name": "enp137s0f1",
+                  "vendor": "Intel"
+                },
+                {
+                  "device": "bmc",
+                  "enabled": true,
+                  "interface": "Ethernet",
+                  "ip": "172.17.64.1",
+                  "mac": "f4:02:70:9a:3f:74",
+                  "management": true,
+                  "mountable": false,
+                  "mounted": false,
+                  "network_address": "clusterc-1-bmc.fakesite.grid5000.fr"
+                }
+              ],
+              "operating_system": {
+                "cstate_driver": "intel_idle",
+                "cstate_governor": "menu",
+                "ht_enabled": true,
+                "pstate_driver": "intel_pstate",
+                "pstate_governor": "performance",
+                "turboboost_enabled": true
+              },
+              "performance": {
+                "core_flops": 17713000000,
+                "node_flops": 202670000000
+              },
+              "processor": {
+                "cache_l1": null,
+                "cache_l1d": 32768,
+                "cache_l1i": 32768,
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+              "uid": "clusterb-1"
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+          "model": "Dell PowerEdge T640",
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+            }
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+          "weathermap": {}
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+          "mac": "28:29:86:12:27:FF",
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+          ],
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+          "uid": "clustera-pdu3",
+          "vendor": "APC"
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+          "model": "AP8653",
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+            "6": "clustera-2"
+          },
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+          "vendor": "APC"
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+          "model": "AP8653",
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+          ],
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+          "uid": "clustera-pdu4",
+          "vendor": "APC"
+        }
+      },
+      "compilation_server": false,
+      "description": "Grid5000 Fakesite site",
+      "email_contact": "support-staff@lists.grid5000.fr",
+      "frontend_ip": "172.16.79.101",
+      "g5ksubnet": {
+        "gateway": "10.147.255.254",
+        "network": "10.144.0.0/14"
+      },
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+      "location": "Fakesite, France",
+      "longitude": 6.2,
+      "name": "Fakesite",
+      "production": true,
+      "renater_ip": "192.168.4.14",
+      "security_contact": "support-staff@lists.grid5000.fr",
+      "storage5k": false,
+      "sys_admin_contact": "support-staff@lists.grid5000.fr",
+      "type": "site",
+      "uid": "fakesite",
+      "user_support_contact": "support-staff@lists.grid5000.fr",
+      "virt_ip_range": "10.144.0.0/14",
+      "web": "http://www.grid5000.fr/mediawiki/index.php/Fakesite:Home"
+    }
+  },
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+              "uid": "renater-nantes"
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+              "site_uid": "rennes",
+              "uid": "gw-rennes"
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+          ],
+          "rate": 10000000000
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+      ],
+      "type": "network_equipment",
+      "uid": "renater-rennes",
+      "weathermap": {}
+    },
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+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-nancy"
+            },
+            {
+              "kind": "router",
+              "site_uid": "luxembourg",
+              "uid": "gw-luxembourg"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-luxembourg",
+      "weathermap": {}
+    },
+    "renater-lyon": {
+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-paris"
+            },
+            {
+              "uid": "renater-sophia"
+            },
+            {
+              "uid": "renater-grenoble"
+            },
+            {
+              "uid": "renater-nantes"
+            },
+            {
+              "kind": "router",
+              "site_uid": "lyon",
+              "uid": "gw-lyon"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-lyon",
+      "weathermap": {}
+    },
+    "renater-grenoble": {
+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-lyon"
+            },
+            {
+              "kind": "router",
+              "site_uid": "grenoble",
+              "uid": "gw-grenoble"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-grenoble",
+      "weathermap": {}
+    },
+    "renater-paris": {
+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-lille"
+            },
+            {
+              "uid": "renater-lyon"
+            },
+            {
+              "uid": "renater-nancy"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-paris",
+      "weathermap": {}
+    },
+    "renater-nancy": {
+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-luxembourg"
+            },
+            {
+              "uid": "renater-paris"
+            },
+            {
+              "kind": "router",
+              "site_uid": "nancy",
+              "uid": "gw-nancy"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-nancy",
+      "weathermap": {}
+    },
+    "renater-sophia": {
+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-lyon"
+            },
+            {
+              "kind": "router",
+              "site_uid": "sophia",
+              "uid": "gw-sophia"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-sophia",
+      "weathermap": {}
+    },
+    "renater-lille": {
+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-paris"
+            },
+            {
+              "kind": "router",
+              "site_uid": "lille",
+              "uid": "gw-lille"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-lille",
+      "weathermap": {}
+    },
+    "renater-nantes": {
+      "kind": "virtual",
+      "linecards": [
+        {
+          "ports": [
+            {
+              "uid": "renater-lyon"
+            },
+            {
+              "uid": "renater-rennes"
+            },
+            {
+              "kind": "router",
+              "site_uid": "nantes",
+              "uid": "gw-nantes"
+            }
+          ],
+          "rate": 10000000000
+        }
+      ],
+      "type": "network_equipment",
+      "uid": "renater-nantes",
+      "weathermap": {}
+    }
+  },
+  "type": "grid",
+  "uid": "grid5000"
+}