OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:86:e4:e1:cf:2e:0e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:b6:bc:ba:6a:e6:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:ae:e3:43:7d:8d:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:4e:b3:60:0b:8b:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:1b:36:9d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1b:36:9d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
