OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8b76eb-0): addr:e2:12:95:af:a5:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:13:b2:e2:49:2e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
