OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:ce:15:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:1e:01:1f:ba:f7:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:56:fb:f3:49:ea:f1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:96:04:dc:12:d6:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:b2:ea:37:aa:86:b7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ce:15:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
