OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9a9817-0): addr:9e:d6:15:a0:1f:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:5d:00:d1:8d:75
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
