OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:92:72:fd:9c:ab:9c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:e6:40:14:27:8d:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:c2:a3:7a:10:f0:b2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:6e:3c:ca:de:b2:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:3f:79:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:3f:79:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
