OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-f77b20-0): addr:d6:f7:17:61:43:1c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:e7:1f:53:19:f7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
