OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-25e712-0): addr:ae:15:b1:6c:2c:a7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3a:a1:15:66:20:ec
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
