root@ubuntuZen:/home/mihai/xen/extras/mini-os# ip a s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master xenbr0 state UP group default qlen 1000
    link/ether 08:00:27:5d:d9:fb brd ff:ff:ff:ff:ff:ff
3: xenbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 08:00:27:5d:d9:fb brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global xenbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::a00:27ff:fe5d:d9fb/64 scope link
       valid_lft forever preferred_lft forever
5: vif5.0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master xenbr0 state UP group default qlen 1
    link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fcff:ffff:feff:ffff/64 scope link
       valid_lft forever preferred_lft forever
7: vif7.0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master xenbr0 state UP group default qlen 1
    link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fcff:ffff:feff:ffff/64 scope link
       valid_lft forever preferred_lft forever


______________________


root@ubuntuZen:/home/mihai/xen/extras/mini-os# brctl show
bridge name	bridge id		STP enabled	interfaces
xenbr0		8000.0800275dd9fb	no		eth0
							vif5.0
							vif7.0