OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-95ed35-0): addr:5e:05:6d:c6:9d:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d3497a-0): addr:5a:b6:9e:8b:d1:e6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 22(tapce65cae0-91): addr:fe:16:3e:d8:a0:89
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 23(tapae444129-50): addr:e2:59:c7:fc:ce:94
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3e:d9:5c:be:c2:5b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
