OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8cce98-0): addr:2a:80:9a:74:87:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:26:95:b0:6f:2c:1e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
