OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-439a6b-0): addr:d6:1b:7e:f6:f5:cb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4a:3f:6a:e8:88:59
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
