OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b2:7c:c0:cd:7c:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:76:28:01:f3:6a:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:86:47:11:a5:a3:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:0e:db:fd:4c:6c:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:30:1f:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:30:1f:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
