OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:f2:d4:fb:24:1a:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:36:9e:5e:ba:5f:a2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:3a:1f:c5:2c:59:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:ca:bc:61:77:42:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:04:34:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-1): addr:76:ed:c2:c1:61:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:04:34:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
