OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b2:2d:f8:e0:d0:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:3e:91:b6:05:13:23
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:c6:c6:36:87:1d:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:d6:04:9d:fd:5a:c6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:25:6d:11
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:25:6d:11
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
