OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fe:93:e1:fa:54:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:b2:db:dc:c7:91:1d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:8e:dd:c3:8b:d9:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:e6:0a:0e:fd:0d:ce
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:dc:a4:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:dc:a4:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
