OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-4b7cc9-0): addr:52:94:2b:9c:63:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:86:49:e8:75:aa:4a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
