OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:9d:25:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:ea:6d:42:d7:7c:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ba:24:0d:ce:b8:1b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:5a:9d:3c:2b:0a:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9d:25:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
