OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ce:fb:be:0f:e3:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:32:4f:e5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:2a:2b:bc:fc:07:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:42:11:ff:1c:ef:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:52:7c:13:4b:7e:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:32:4f:e5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
