Hi,

I am using libvirt version 0.9.13 with Ubuntu 12.10

When I try to start a VM with an openvswitch bridge interface I get the error:

error: Failed to start domain kvm113-2
error: Unable to add port vnet1 to OVS bridge ovsbr: Operation not permitted


Here is my bridge configuration:
 <interface type='bridge'>
      <mac address='52:54:00:c7:db:d2'/>
      <source bridge='ovsbr'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='40e21558-217c-d8ef-c9a9-5275fa4b4a46'/>
      </virtualport>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </interface>


This configuration previously worked  fine. 

Request your help and insights.

WIth best regards
Radhika