OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-09738f-0): addr:4a:b1:a4:5f:0c:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:59:5b:80:e5:44
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
