OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:6a:e9:0b:bd:f2:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:92:17:7e:ee:c3:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:b6:ff:04:fb:19:f7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:8a:f8:b1:e1:18:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:a9:00:3a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a9:00:3a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
