OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:56:eb:1d:75:97:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:b2:4b:bd:bb:95:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:3e:bb:12:20:a2:eb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:da:c3:c5:f9:01:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:ce:69:04
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ce:69:04
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
