OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-716dd1-0): addr:52:7d:61:80:15:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:17:58:eb:e6:a7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
