OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:06:8a:a0:4d:58:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:ae:97:6d:00:42:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:d6:db:d0:f7:0d:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:e6:c0:29:55:78:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:4c:4b:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:4c:4b:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
