OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-09ce5d-0): addr:8a:91:06:3d:73:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-61e048-0): addr:22:df:26:2a:82:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-eb0238-0): addr:be:e4:7c:8e:8a:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2a:d4:fa:63:35:9a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
