OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:79:4a:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:12:f6:7a:71:79:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:be:ba:ba:35:a6:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:da:e6:9e:0d:7c:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:be:5e:ae:1f:d3:a7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:79:4a:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
