Hi everyone and happy new year first ! I'm setting up a test host using VLAN It holds 2 VM's so I - Stopped the two VMs and removed the "public_10" network from the NIC - edited the "public_10" network, checked "enable VLAN tagging" and set 10 as VLAN identifier - assigned the "new" edited network to the VMs NIC - edited the HOST network, clicked the pencil on the relevant NIC and clicked "sync network" since it showed the network as "not synced" Ovirt tried to setup the network but ended with "cannot up interface" error and I lost contact with the node Ovirt is 3.3.2 on Fedora 19 (it is AIO) Here is the log: 53244 Thread-52989::DEBUG::2014-01-01 16:58:16,938::BindingXMLRPC::974::vds::(wrapper) client [172.16.0.5]::call setupNetworks with ({'public_10': {'nic': 'p5p1', 'vlan': '10', 'ipaddr': '10.0.0.5', 'netmask': '255.255.255.0', 'STP': 'no', 'bridged': 'true', 'gateway': '10.0.0.254'}}, {}, {'connectivityCheck': 'true', 'connectivityTimeout': 120}) {} flowID [49756c97] 53245 Thread-52925::DEBUG::2014-01-01 16:56:39,737::BindingXMLRPC::974::vds::(wrapper) client [172.16.0.5]::call ping with () {} flowID [64a8776] 53246 Thread-52925::DEBUG::2014-01-01 16:56:39,738::BindingXMLRPC::981::vds::(wrapper) return ping with {'status': {'message': 'Done', 'code': 0}} 53247 Thread-52924::ERROR::2014-01-01 16:56:39,802::API::1262::vds::(setupNetworks) bridge public_10 has interfaces set(['vnet0', 'vnet2']) connected 53248 Traceback (most recent call last): 53249 File "/usr/share/vdsm/API.py", line 1260, in setupNetworks 53250 supervdsm.getProxy().setupNetworks(networks, bondings, options) 53251 File "/usr/share/vdsm/supervdsm.py", line 50, in __call__ 53252 return callMethod() 53253 File "/usr/share/vdsm/supervdsm.py", line 48, in <lambda> 53254 **kwargs) 53255 File "<string>", line 2, in setupNetworks 53256 File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod 53257 raise convert_to_error(kind, result) 53258 ConfigNetworkError: (28, "bridge public_10 has interfaces set(['vnet0', 'vnet2']) connected") 53259 Thread-52924::DEBUG::2014-01-01 16:56:39,808::BindingXMLRPC::981::vds::(wrapper) return setupNetworks with {'status': {'message': "bridge public_10 has interfaces set(['vnet0', 'vnet2']) connected", 'code': 28}} ifcfg-p5p1 (before loosing connection) [root@hypervisor ~]# cat /etc/sysconfig/network-scripts/ifcfg-p5p1 DEVICE=p5p1 ONBOOT=yes HWADDR=00:50:fc:85:9b:76 BRIDGE=public_10 NM_CONTROLLED=no STP=no ifcfg-public_10 DEVICE=public_10 ONBOOT=yes TYPE=Bridge DELAY=0 NM_CONTROLLED=no STP=no IPADDR=10.0.0.5 NETMASK=255.255.255.0 DEFROUTE=yes GATEWAY=10.0.0.254 PEERDNS=yes DNS1=8.8.8.8 DNS2=8.8.4.4 How may I amend the configuration files? Any hint? Thank you Best regards