OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:46:bc:b3:77:81:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:9a:a6:c7:1d:43:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:5e:30:e0:b0:12:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:5e:a9:b6:ef:a4:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:b9:06:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-2): addr:3a:ba:1c:d8:35:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b9:06:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
