OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3ff68c-0): addr:5a:a7:8d:44:2a:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-1fc220-0): addr:c6:02:b9:cc:15:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-c9f3d6-0): addr:6a:c0:d3:47:25:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:06:28:16:81:ad:8b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
