OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:3a:97:78:11:fd:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:b9:a2:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:66:f8:b2:b1:cd:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:ca:0d:e5:01:b6:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:5e:45:c6:e3:9d:f1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b9:a2:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
