OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5a:0d:23:2a:ed:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:1f:2f:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:f6:25:79:8b:a5:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:02:9c:63:b8:a1:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:0e:85:0e:9d:d8:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1f:2f:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
