OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f8c97b-0): addr:52:c0:a9:5f:c2:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:c9:53:81:60:99
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
