OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d3271b-0): addr:72:f3:b3:89:3d:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:96:6b:12:98:e6:e5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
