OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:0a:0c:0d:b1:6f:91
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:72:dd:ca:0b:5a:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:8a:c7:77:26:d4:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:ba:cb:df:a4:3d:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:fb:8d:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:fb:8d:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
