OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:46:85:e0:11:bf:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:5e:7a:e6:e6:30:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:5a:79:be:c5:e8:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:fe:0d:f5:40:ba:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:b3:b5:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b3:b5:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
