OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:7e:53:f6:83:0a:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ee:71:23:15:48:5a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:0e:c9:fd:f6:20:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:e6:4d:3b:c9:c6:1a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:25:b8:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:25:b8:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
