[ovirt-users] VM Network Interfaces - bad cluster network and VLAN assignment

David Jaša djasa at redhat.com
Wed Sep 17 09:16:21 UTC 2014


Ahoj Jiří,

Are you sure that the networks are indeed wrong, for example that
guest's NIC with ...:11 MAC is plugged to br0 network and ...:ef NIC is
plugged to br1 network? If so that would be a serious bug. I thing
however that you just see guest OS NIC naming race conditions, maybe if
ovirt's NIC names would be prefixed with nic- instead of eth- by
default, such confusions wouldn't happen...

For some reference, bug [1] is implemented consistent NIC order in the
portal and [2] to be able to modify pci addresses as well (as they are
used by some OSs to base NIC naming on).

David

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1040630
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1108926


On St, 2014-09-17 at 07:33 +0200, J. Mikulec wrote:
> Hello,
> 
> I have 4 Cluster networks and I am trying to add 2 NICs to VM now:
> 
> nic0 -> br0
> nic1 -> br1
> 
> At ovirt-engine it seems ok, but assignment in qemu is incorrect - going 
> to this:
> nic0 -> br1
> nic1 -> br0
> 
> So nics belongs to incorrect bridges and so incorrect VLANs. It does 
> oVirt totally unusable for me (we strictly use 0 network for public IPs 
> and 1 for intranet use) :(
> 
> With one NIC I not see this problem.
> 
> http://tinypic.com/view.php?pic=29pzxbr&s=8#.VBjLUxYoEiw
> http://tinypic.com/view.php?pic=2hdd07m&s=8#.VBjLgRYoEiw
> 
> Thank for help.
> 
> J.
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> Users at ovirt.org
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