OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:21:9c:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:9e:25:23:e7:b8:ec
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:8a:fd:5c:14:05:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:de:f1:d2:29:04:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(patch-provnet-a): addr:36:5b:3b:ff:18:f2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:21:9c:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
