OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a52aa1-0): addr:72:60:05:03:36:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-8f7b88-0): addr:b6:69:45:68:ce:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:06:68:b7:cb:bf:90
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
