<interface type='bond' name='bond0'>
  <start mode='none'/>
  <protocol family='ipv4'>
    <ip address='192.168.50.7' prefix='24'/>
    <route gateway='192.168.50.1'/>
  </protocol>
  <bond mode='active-backup'>
    <miimon freq='100' updelay='10' carrier='ioctl'/>
    <interface type='ethernet' name='eth1'>
    </interface>
    <interface type='ethernet' name='eth0'>
    </interface>
  </bond>
</interface>