OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:a2:b5:2b:5e:2c:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:e2:ca:25:c1:a7:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:92:0a:d3:f7:39:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:72:9b:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:a2:53:de:5e:e5:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-e): addr:76:19:72:d8:d8:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:72:9b:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
