OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:5a:03:5c:d3:ff:d4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:be:d3:08:a9:81:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(eth1): addr:fa:16:3e:b9:dc:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:7e:61:c6:7d:c7:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:d2:90:a5:5b:a3:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-8): addr:a2:20:24:73:7a:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:b9:dc:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
