OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d4bfdd-0): addr:52:de:5f:3a:b9:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:1a:8f:50:0b:40:ea
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
