OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:ae:31:bf:59:45:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:ea:14:79:c4:17:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:52:77:66:b7:18:45
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:c4:20:e5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:9a:92:de:f5:7d:f7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-1): addr:f6:60:3b:c2:26:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:c4:20:e5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
