OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-c28d34-0): addr:0e:e6:0a:84:2a:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:92:e3:bf:38:17:9f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
