OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-80993c-0): addr:de:31:e0:f1:53:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-5f259f-0): addr:36:c1:f8:53:bb:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-8128a1-0): addr:1e:21:6e:ba:19:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8e:2c:41:1b:64:cf
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
