<interface type='bridge'>
      <mac address='52:54:00:60:56:f8'/>
      <source bridge='kvm_dmz1'/>
      <target dev='opd1s02_dmz1'/>
      <model type='e1000'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>