[root@controller ~]# ip addr show br-ex
10: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN qlen 1000
    link/ether d6:57:55:2f:b5:47 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.34/24 brd 192.168.2.255 scope global br-ex
       valid_lft forever preferred_lft forever
    inet6 fe80::d457:55ff:fe2f:b547/64 scope link
       valid_lft forever preferred_lft forever
[root@controller ~]# ip addr show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP qlen 1000
    link/ether 52:54:00:6b:55:21 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::5054:ff:fe6b:5521/64 scope link
       valid_lft forever preferred_lft forever