OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:9e:92:42:f4:37:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:fe:67:03:fb:e5:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:0e:ae:df:7c:1e:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:2a:f9:3b:a3:fb:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:95:2d:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:95:2d:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
