OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-2003b4-0): addr:ce:3d:47:05:f2:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3a:76:44:bd:9b:d0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
