OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:d2:fd:1d:ae:47:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:52:46:32:f4:e1:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:6e:4e:69:05:3c:bf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:b2:fc:a9:84:6b:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:8c:aa:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8c:aa:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
