OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:82:a5:ba:b2:6c:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:76:09:99:f3:1c:11
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:c2:74:0c:95:fc:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:1f:d2:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1f:d2:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
