[ovs-discuss] Issue with vlan tag being changed after reboot of KVM hypervisor.

[Ben Pfaff]

On Mon, May 16, 2016 at 04:08:53PM -0600, Pippin Wallace wrote:
> First off I apologize for submitting a "bug" on such an old version but
> what I am trying to find is the first "stable" OVS version where this bug
> is fixed and move it it for now.
> 
> 
> 
> The situation is that the majority of our VM's running under KVM will have
> changed vlan tags when the physical host is rebooted.
> 
> 
> 
> For example after a reboot one of the VM's will have the correct vlan tag
> via "virsh dumpxml <domain>" but when we check with "ovs-vsctl list port
> <vnet#>" we will see the wrong tag listed there.  We have been resetting
> the tags with "ovs-vsctl set port vnet# tag=#" but are looking for a "fix"
> or the correct way to set our tags if that is the problem here.

Do you have a reason to believe that this is a bug in OVS?  I don't
recall a bug like this in OVS, so it may be a bug in whatever is setting
up the tag.