OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:00:5b:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:02:43:69:51:e8:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:02:b4:d0:06:46:a1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:4e:61:b0:21:30:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:00:5b:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
