Thank you for the quick reply. I tried to remove the <virtualport type='openvswitch'/> line from the network xml and now the network is created. However when i try to launch the vm with virt-install i get again the error Unable to add bridge snort port vnet0: Operation not supported which was what led me to upgrade my libvirt version Any other ideas?

----- Original Message ----- > From: "Kashyap Chamarthy" <kchamart(a)redhat.com&gt; > To: "Anna Giannakou" <anna.giannakou(a)inria.fr&gt; > Cc: libvirt-users(a)redhat.com > Sent: Tuesday, 28 October, 2014 5:46:46 PM > Subject: Re: [libvirt-users] problem with libvirt and ovs bridge > > On Tue, Oct 28, 2014 at 05:32:58PM +0100, Anna Giannakou wrote: > > Hello, > > I have created an ovs bridge on which i have attached a port. I would like > > to connect my vm to that port,so i have created an xml defining the > > network. > > The xml is: > > <network> > > <name>ovs-snort</name> > > <forward mode='bridge'/> > > <bridge name='snort'/> > > <virtualport type='openvswitch'/> > > </network> > > but when i do virsh net-define /tmp/ovsnetwork.xml i get the error > > error: XML error: unexpected virtualport type -1 > > My libvirt version is 1.2.9 > > Can you guide me through that? > > > > Hmm, I haven't tested this lately, but here's some old notes on Libvirt > and Open vSwitch: > > http://kashyapc.com/2013/07/13/configuring-libvirt-guests-with-an-open-vs... > > And a related thread from libvirt users list: > > https://www.redhat.com/archives/libvirt-users/2013-April/msg00044.html > > > -- > /kashyap >