Re: [libvirt-users] Hot-migration of OVS Vlan configuration

The cleanest way to make this work would be to enhance the function qemuDomainChangeNet() to know what to do when it detects that the vlan tag was changed with a device update ("virsh update-device") - this command can take effect immediately rather than waiting until the next time the domain is started, so the XML that is migrated would have the new vlan tag already in place (and also you wouldn't need to issue the ovs-vsctl command for it out of band any more!). Currently that function notices that the vlan tag has changed, but this just leads to an "UNSUPPORTED" error. If the network type is OVS, then it *should* work to just reconnect the bridge (libvirt sets the vlan tag as part of connecting to the ovs bridge). So how are your programming chops? :-)