[Users] Error on Setting up VLAN

[Assaf Muller]

Looks like bridge public_10 still has vNICs connected to it.

What is the output for:
brctl show public_10

If you select the host and enter the Setup Networks dialog, does the physical NIC
have a network on it? If so, remove it (I know you said you did this but it looks like
that operation somehow silently failed). After removing all networks on the host,
the public_10 bridge shouldn't exist. Also, virsh net-list shouldn't list the public_10 network.

If setupNetworks shows a blank NIC, but the public_10 bridge or libvirt networks exist, try:
Removing /etc/sysconfig/network-scripts/ifcfg-public_10
Type virsh <enter>, then:
virsh net-undefine public_10
virsh net-destroy public_10
Login details:
vdsm at ovirt
shibboleth

After the ifcfg file and libvirt networks are removed, go back to the GUI and select 'Save network config',
then restart the host.

At this point the host should come up - No ifcfg file for the network, no libvirt network, no bridge.
The setup networks dialog in the GUI should show no network on the physical NIC.
Now make sure (again) that the public_10 network is a VLAN network, and attach public_10 to the NIC.
That operation should succeed.


Assaf Muller, Cloud Networking Engineer 
Red Hat 

----- Original Message -----
From: "Alessandro Bianchi" <a.bianchi at skynet.it>
To: users at ovirt.org
Sent: Wednesday, January 1, 2014 7:01:17 PM
Subject: [Users] Error on Setting up VLAN

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 at 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


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