OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:8e:a7:81:20:8f:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:82:25:a3:bc:2e:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:b6:41:05:10:a2:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:12:63:e2:6f:73:b7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:fd:8e:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-1): addr:3a:8a:62:38:a8:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:fd:8e:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
