OFPST_PORT_DESC reply (xid=0x2):
 1(tapb7ed1856-72): addr:fa:16:3e:81:77:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(tap9a2e0de2-08): addr:fa:16:3e:c5:d6:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(tap88d4c439-3c): addr:fa:16:3e:93:77:44
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(patch-br-int-to): addr:e2:d6:1f:f1:21:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(tap0c455abd-20): addr:a2:b8:f4:c8:a7:76
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 7(tapda3e5a61-7a): addr:fe:16:3e:6c:20:5b
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 8(tap8a49767c-fb): addr:fe:16:3e:15:4e:c0
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8a:ec:e6:9c:72:6a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
