OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a9c865-0): addr:aa:68:8c:50:e4:ca
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fe:54:f5:da:8a:15
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
