OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-00c02a-0): addr:9a:1b:d0:3b:c8:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:36:88:31:31:8d:4d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
