OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8715d3-0): addr:aa:63:fc:3f:ec:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2a:28:03:b5:4b:45
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
