Thank you for your help.

You were right, it the filtering issue thats causing the failed start.

Even newly created networks under 7.2.8 still have the network filter by default.

THANKS!!!! :)

On Sat, Feb 2, 2019 at 4:52 PM Dominik Holler <dholler@redhat.com> wrote:
On Sat, 2 Feb 2019 12:53:13 +0200
ada per <adaper3@gmail.com> wrote:

> Thank you for your reply :).
>
> I don't think is the network filters, i have also created a new OVN
> network to check but still the vm dont boot-up on the hosts that have
> been upgraded.
>

Can you please share the vdsm.log from a host after a failed start?

>
> On Fri, 1 Feb 2019, 21:56 Dominik Holler <dholler@redhat.com wrote:
>
> > On Fri, 1 Feb 2019 15:31:18 +0200
> > ada per <adaper3@gmail.com> wrote:
> >
> > > After upgrading my hosts from 4.2.7.1 to 4.2.8 the external
> > > networks stopped working!
> > > When im starting a VM using external network it does not boot up
> > > at all!!!!!
> > >
> > > The error message is:
> > > "VM  is down with error. Exit message: unsupported configuration:
> > > filterref is not supported for network interfaces with virtualport
> > > type openvswitch"
> > >
> >
> > Can you please ensure that the vNIC profiles of the external network
> > has no network filter?
> > Please find details in https://bugzilla.redhat.com/1502754 .
> > The default setting for new created OVN networks should be
> > "No Network Filter", but there might be old networks which still
> > have an network filter.
> >
> > > I rolled it back to 4.2.7.1 for 1 of my hosts just as a test and
> > > the VMs on that host can now bootup using external networks as
> > > they are supposed to!!
> > >
> > > Please advice as i would like to use the upgrade!!!
> >
> >