OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:be:10:8c:10:79:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:62:1b:cd:8d:2c:6c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:26:bc:d7:76:14:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:72:12:ce:10:75:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:1a:2b:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:1a:2b:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
