OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b8d8af-0): addr:8a:09:2c:4f:46:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2e:3c:17:33:a6:7a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
