OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6b92b0-0): addr:6e:2e:14:d8:80:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-e4cabb-0): addr:a6:bf:45:61:7c:cb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 23(tapbfcb9d3b-42): addr:fe:16:3e:97:17:61
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 24(tap1d90bb72-90): addr:46:25:bc:78:6b:75
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3e:61:89:c1:c9:2a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
