OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c2:45:f2:d5:d1:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:72:8a:0a:cb:e9:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:da:65:79:35:07:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:3a:19:14:64:b1:b0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:ee:b0:a4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ee:b0:a4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
