OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:2a:7f:48:63:ed:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:aa:dc:5e:fa:27:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:8e:e5:28:4d:7e:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:da:45:b5:89:75:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:f7:b6:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-b): addr:7e:da:a7:d5:08:ec
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:f7:b6:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
