text:        <source dir="/foo/bar"/>
         <target dir="/bar/baz"/>
       </filesystem>
  -    <interface type="network">
  -      <mac address="22:22:33:54:32:10"/>
  -      <source network="default"/>
  +    <interface type="bridge">
  +      <source bridge="br0"/>
         <target dev="testnet0"/>
  -      <model type="e1000"/>
  +      <model type="virtio"/>
       </interface>
       <interface type="bridge">
         <mac address="22:00:00:44:aa:bf"/>
  
  Domain 'test-for-virtxml' defined successfully.
  Changes will take effect after the domain is fully powered off.