OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c2:09:51:00:64:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:be:a2:69:2f:c3:e9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:6e:43:bc:8d:ff:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:ba:f5:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ba:f5:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
