OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-13350d-0): addr:da:bc:e4:ae:e4:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3e:56:4a:8c:59:7a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
