OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bc4823-0): addr:3a:51:1b:83:47:b1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-80b6b2-0): addr:d2:7d:ac:bd:9a:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8a:a4:08:9d:e5:c8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
