OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:e6:69:bd:39:3e:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:a2:43:38:64:52:ed
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:ce:c9:1f:a1:cd:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:72:b9:3f:e3:38:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:00:73:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:00:73:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
