OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7cec17-0): addr:be:91:31:ce:1d:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:b3:51:21:d2:ea
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
