OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:42:fb:3e:65:01:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:a8:ea:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:22:91:3f:30:ad:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:9a:d7:ad:e3:6b:25
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan22): addr:72:39:f4:aa:69:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-e): addr:9e:5d:85:fd:25:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:a8:ea:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
