OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b95886-0): addr:3a:12:b2:c4:23:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-bfdd72-0): addr:6e:bb:d7:14:d3:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-db2221-0): addr:f2:a3:9f:9a:a1:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7e:55:3f:4c:b4:40
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
