OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:da:42:46:42:77:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:c6:8a:46:a3:cd:67
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(eth1): addr:fa:16:3e:e0:d7:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:7e:b1:aa:23:93:45
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan22): addr:fa:f9:e2:d1:a7:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-a): addr:32:84:2b:8c:e4:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:e0:d7:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
