OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:ac:37:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:76:c5:2c:8f:11:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:fe:d8:fc:9f:61:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:32:b3:d7:da:ab:7b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:a6:1e:bb:15:39:d4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ac:37:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
