OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-174709-0): addr:ba:68:d2:da:3b:68
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:de:76:ef:f3:d6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
