OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b2:63:20:ea:9e:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:aa:77:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ea:44:2a:4c:08:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:a6:10:5b:b2:74:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:26:89:04:4e:7c:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:aa:77:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
