OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5e:ab:2b:63:a2:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:72:fd:a7:a1:41:7e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:be:8b:d6:ba:a8:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:0e:c4:e5:4d:b2:9d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:8f:db:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8f:db:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
