OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:7f:87:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:ba:e4:49:ea:f0:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:e2:07:aa:6c:5d:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:d2:34:d3:ac:d9:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:12:5b:de:04:09:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:7f:87:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
