OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:ed:8d:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:76:e5:db:22:2c:4d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:f6:01:84:17:b7:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:e6:9d:36:83:4d:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan44): addr:52:65:ca:2e:04:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(vlan20): addr:5a:3b:08:e3:47:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:ed:8d:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
