OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:7e:08:da:e6:ac:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:56:b6:aa:4d:37:67
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:2a:b8:07:34:f3:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:b6:b1:00:fe:99:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:a7:2f:c4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a7:2f:c4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
