OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:a2:d8:4b:f6:b8:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:6d:53:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:da:bd:d5:13:2c:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:12:49:a6:84:82:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:6d:53:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
