OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:96:fb:81:b6:e3:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:9a:fe:18:9d:14:7b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:02:eb:a3:41:99:4f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:e2:85:29:45:ed:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:9e:60:56
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9e:60:56
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
