<interface type='bridge' name='br0'>
<start mode='onboot'/>
<mtu size='1500'/>
<bridge stp='off'>
<interface type='ethernet' name='eth0'>
<link speed='1000' state='up'/>
<mac address='ab:bb:cc:dd:ee:ff'/>
</interface>
<interface type='ethernet' name='eth1'>
</bridge>