OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:bb:82:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:6e:0f:8b:fc:40:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:02:39:3b:cd:5e:c4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:aa:d9:cb:00:70:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:9e:40:f6:9f:8b:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:bb:82:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
