OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:42:0d:9b:3b:3f:5a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:96:91:ba:6d:36:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:0e:12:cf:ce:d2:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:1e:3d:3a:d7:95:04
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:d3:dc:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:d3:dc:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
