OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:aa:86:ab:2e:9d:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:3a:69:09:7e:1a:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:76:c8:e4:fa:e9:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:6a:9f:e6:9a:d5:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:ce:b2:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ce:b2:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
