OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-509e47-0): addr:e6:19:af:e9:6e:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ba:6a:cb:5a:f4:1f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
