OFPST_PORT_DESC reply (xid=0x2):
 2(o-hm0): addr:fa:16:3e:32:99:8c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(tap08fa3ae3-39): addr:fa:16:3e:bf:7b:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(tapda7d2b4a-a1): addr:fa:16:3e:21:3b:8d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-br-int-to): addr:ba:89:c3:ab:a3:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 8(tap3dc20503-70): addr:4a:f9:82:a6:97:3d
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 9(tapb2e022e2-a6): addr:fe:16:3e:f2:ba:00
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 10(ovn-b4a919-0): addr:72:a9:46:69:86:5f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 11(tapda331094-fc): addr:fa:16:3e:70:74:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 12(taped70a062-19): addr:fa:16:3e:68:95:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 13(tapc1fefb3b-81): addr:fe:16:3e:67:9e:cd
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ce:90:6e:f6:74:3c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
