OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-dbdc4c-0): addr:3a:a6:77:88:60:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d2:0f:5e:16:21:84
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
