OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ef0efc-0): addr:ee:3f:67:44:20:0a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:1a:48:64:91:28:a1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
