OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-98b22c-0): addr:d2:65:e9:8f:1b:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ba:eb:70:0b:db:f7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
