OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b8ddaf-0): addr:92:8a:30:05:c3:d4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d2:a3:49:c9:48:54
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
