OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-f704ef-0): addr:96:ba:94:13:55:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ee:d9:35:d2:0b:a0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
