[libvirt-users] vnetX interface name persistence

Daniel P. Berrange berrange at redhat.com
Fri May 8 15:37:21 UTC 2015

On Fri, May 08, 2015 at 12:31:34PM -0300, Lucas Brasilino wrote:
> Hi!
> I'm aware that (host side) vnetX are created when VM boots. But I'm trying to
> figure out a way ti create a persistence in vnetX names. What I mean is,
> say, I want to associate VMs vm0 to vnet0, vm1 to vnet1, vm2 to vnet2 and
> so forth, no matter which order the VMs are booted. I looked around network
> XML format, but did't find something...

The <target dev="xxxx"/> element inside the <interface> controls the
name. You just have to use a prefix that is /not/ 'vnet' - if libvirt
sees 'vnetXXX' it'll throw it away & auto-generate a name

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