OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:b6:01:08:cb:cb:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:e2:f0:fa:6f:1b:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:ba:e9:23:a7:b3:5b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:87:6d:b8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-7): addr:aa:da:bc:82:bf:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:87:6d:b8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
