[root@queenvm1 ~(keystone_admin)]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    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: enp0s3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 08:00:27:b7:4c:cd brd ff:ff:ff:ff:ff:ff
3: enp0s8: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP qlen 1000
    link/ether 08:00:27:42:6c:ba brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a00:27ff:fe42:6cba/64 scope link
       valid_lft forever preferred_lft forever
4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether fe:62:d5:3b:ee:3c brd ff:ff:ff:ff:ff:ff
5: vxlan_sys_4789: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65000 qdisc noqueue master ovs-system state UNKNOWN qlen 1000
    link/ether be:8f:b2:da:b3:57 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::bc8f:b2ff:feda:b357/64 scope link
       valid_lft forever preferred_lft forever
6: br-tun: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether ea:fe:e7:3f:a1:4d brd ff:ff:ff:ff:ff:ff
8: br-int: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 56:4c:0c:1c:d6:46 brd ff:ff:ff:ff:ff:ff
11: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether 52:54:00:ff:20:d9 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
12: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
    link/ether 52:54:00:ff:20:d9 brd ff:ff:ff:ff:ff:ff
84: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN qlen 1000
    link/ether 08:00:27:42:6c:ba brd ff:ff:ff:ff:ff:ff
    inet 172.30.70.48/25 brd 172.30.70.127 scope global br-ex
       valid_lft forever preferred_lft forever
    inet6 fe80::e8f5:efff:fe4d:d348/64 scope link
       valid_lft forever preferred_lft forever