{
    "VOLTDeviceInfo" : [
    {
            "device_type": "openolt",
            "host": "10.90.0.114",
            "port": 9191,
            "switch_datapath_id": "of:0000000000000001",
            "switch_port": "1",
            "outer_tpid": "0x8100",
            "name": "ONF OLT",
            "uplink": "65536",
            "volt_service_id": 2,
            "nas_id": "NAS_ID"
    }
  ]
}