{
  "title": "展厅上传大文件时播放卡顿，怎样证明是共享链路争用",
  "evidence_type": "synthetic-not-field-measurement",
  "date": "2026-10-23",
  "required_deliverable": "空闲、限速、并发传输时吞吐和播放帧时间对照表",
  "fields": [
    "condition",
    "throughput_mbps",
    "frame_ms",
    "elapsed_s"
  ],
  "sample_rows": [
    [
      "idle",
      2,
      16,
      1
    ],
    [
      "idle",
      2,
      17,
      2
    ],
    [
      "limited",
      80,
      17,
      1
    ],
    [
      "limited",
      80,
      19,
      2
    ],
    [
      "concurrent",
      900,
      20,
      1
    ],
    [
      "concurrent",
      900,
      55,
      2
    ]
  ],
  "unmeasured": "未进行现场吞吐与播放实测，合成帧时间不能作为软硬件性能报告。"
}