OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ba:26:01:0c:79:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:d8:1c:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:fe:e1:7b:13:1f:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:92:42:03:4b:e8:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:d8:1c:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
