OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:de:cf:67:5f:62:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:26:b0:a4:4c:d8:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:76:1d:c0:9b:6a:f1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:aa:20:ef:d5:90:8c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:bb:48:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:bb:48:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
