OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-672825-0): addr:5a:2c:19:d0:90:a4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6718a9-0): addr:16:24:c9:8c:53:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-900289-0): addr:f2:d9:ec:0d:98:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4a:b4:a2:20:bf:24
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
