OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-90ae80-0): addr:9a:b0:52:36:fa:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d71f76-0): addr:a6:17:8c:e9:18:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:31:2c:40:93:4c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
