OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-62eef8-0): addr:2a:9d:31:69:60:fc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:6e:f3:d6:e0:11:ea
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
