OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-53436d-0): addr:ee:73:9f:ec:5e:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f2:de:65:70:cf:9e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
