OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-4c5141-0): addr:22:2c:98:fe:4f:44
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:d3:c2:e9:f9:d1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
