OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:2a:09:43:3b:47:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:82:82:a0:a8:29:b7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:b6:a6:48:7c:09:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:b6:3a:de:02:d0:3c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:a8:23:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a8:23:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
