[root@concord3 ~]# ifconfig
br0       Link encap:Ethernet  HWaddr 00:1A:92:D7:A1:50  
          inet addr:172.16.97.3  Bcast:172.16.255.255  Mask:255.255.0.0
          inet6 addr: fe80::21a:92ff:fed7:a150/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:95132 errors:0 dropped:0 overruns:0 frame:0
          TX packets:88960 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:68965679 (65.7 MiB)  TX bytes:10209851 (9.7 MiB)

eth0      Link encap:Ethernet  HWaddr 00:1A:92:D7:A1:50  
          inet6 addr: fe80::21a:92ff:fed7:a150/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:145014 errors:0 dropped:0 overruns:0 frame:0
          TX packets:139005 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:65455217 (62.4 MiB)  TX bytes:78572605 (74.9 MiB)
          Interrupt:23 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:45637 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45637 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:11900723 (11.3 MiB)  TX bytes:11900723 (11.3 MiB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:35 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:5473 (5.3 KiB)

vnet0     Link encap:Ethernet  HWaddr 00:FF:40:84:95:09  
          inet6 addr: fe80::2ff:40ff:fe84:9509/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:155035 errors:0 dropped:0 overruns:0 frame:0
          TX packets:153080 errors:0 dropped:0 overruns:4554 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:94835569 (90.4 MiB)  TX bytes:21994854 (20.9 MiB)


[root@concord3 ~]# brctl show
bridge name     bridge id               STP enabled     interfaces
br0             8000.001a92d7a150       no              eth0
                                                        vnet0
virbr0          8000.000000000000       no