OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bb8252-0): addr:16:7b:81:ce:64:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:59:1f:dd:94:60
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
