OFPST_PORT_DESC reply (xid=0x2):
 3(ovn-0c6b0d-0): addr:fe:96:1a:f0:3d:d4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:cf:ca:ae:dc:9f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
