OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:36:2a:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:ce:95:9e:01:de:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:0e:00:9e:f8:32:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:ba:b0:ca:11:4b:a1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:02:61:7c:de:0b:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:36:2a:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
