OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3ead5e-0): addr:9a:ef:b7:49:db:22
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:12:ba:c3:ba:b3:26
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
