OFPST_PORT_DESC reply (xid=0x2):
 3(ovn-567e2c-0): addr:a2:5d:a9:57:4f:36
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8e:fd:17:5e:dc:e6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
