bridge name	bridge id		STP enabled	interfaces
br0		8000.90e2ba2719f4	no		eth0
							vnet0
							vnet2
							vnet4
br1		8000.90e2ba2719f5	no		eth1
							vnet1
							vnet3
virbr0		8000.525400a52105	yes		virbr0-nic
