OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:6a:a2:84:23:ca:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:12:41:1e:df:f2:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:52:9d:39:2b:0e:e6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:12:47:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan22): addr:1e:59:8b:f4:e3:ec
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-e): addr:6a:04:c3:91:6d:a5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:12:47:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
