OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ea:71:01:f1:40:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:12:50:09
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:52:40:2b:0a:af:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:5e:a6:04:e7:5c:ef
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:5a:3c:2e:31:36:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:12:50:09
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
