OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-9fa81f-0): addr:9e:9f:16:70:8f:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:26:7d:09:69:51:70
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
