OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5131de-0): addr:ea:f9:29:1c:03:c4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:12:3f:53:e0:e9:c5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
