virsh # net-dumpxml suri-director
<network>
  <name>suri-director</name>
  <uuid>083a463f-296b-4b5b-a616-b8fcfb3d0ce3</uuid>
  <bridge name='virbr1' stp='on' delay='0'/>
  <mac address='52:54:00:0f:d6:77'/>
  <domain name='suri-director'/>
</network>

virsh # net-dumpxml director-proxy
<network>
  <name>director-proxy</name>
  <uuid>d93d1a97-5d8a-4876-b052-d4e98381668c</uuid>
  <bridge name='virbr2' stp='on' delay='0'/>
  <mac address='52:54:00:83:44:fc'/>
  <domain name='director-proxy'/>
</network>