OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-91c747-0): addr:f2:f1:73:e2:54:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b6:5d:c1:0c:ad:4f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
