OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:a6:a2:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:8e:5a:43:23:b8:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:a2:0e:48:46:7f:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:32:7f:24:4b:42:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan22): addr:02:d7:8a:7c:68:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a6:a2:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
