OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d3d811-0): addr:da:6f:5c:56:29:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-18ac42-0): addr:72:d6:48:dc:53:13
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-c2a760-0): addr:82:fe:17:12:41:c4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a6:be:18:7a:23:20
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
