OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:9a:2c:26:28:80:51
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:e5:1c:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:91:db:57:c6:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:e6:c4:25:5d:64:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:52:bb:f6:a6:66:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-8): addr:62:b0:16:b5:4d:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:e5:1c:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
