OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8af97c-0): addr:52:81:49:bc:60:0b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:dc:a4:45:f8:4c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
