VR2R-0295_r1

VR2R-0295

① SA Source

• Source: 開啟完整 SA 文章
• Section: Relocating ConnectX-9
• Line hint: 264

Context Before

But now that the NIC is closer to the OSFP cage, the lower speed PCIe Gen6 signal (64Gbit/s per lane uni-directional) travels the longer distance.

Evidence

By making the PCIe Gen6 signal longer, the signal can travel over PCB given that PCIe Gen6 has better signal integrity than the higher speed 200G Ethernet/InfiniBand signal.

Context After

② Atomic Claim

把 PCIe Gen6 signal 的路徑拉長後，仍可讓 signal 走 PCB，因為 PCIe Gen6 的 signal integrity 優於更高速的 200G Ethernet／InfiniBand signal。

• Epistemic Mode: ASSERTED
• Mapping Status: COMPLETE

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/PCIe",
        "label": "PCIe Gen6"
      },
      "role": "host_interface"
    },
    {
      "node": {
        "id": "04_knowledge_base/PCB",
        "label": "PCB"
      },
      "role": "routing_medium"
    },
    {
      "node": {
        "id": "04_knowledge_base/Ethernet",
        "label": "Ethernet"
      },
      "role": "higher_speed_protocol"
    },
    {
      "node": {
        "id": "04_knowledge_base/InfiniBand",
        "label": "InfiniBand"
      },
      "role": "higher_speed_protocol"
    }
  ],
  "qualifiers": {
    "condition_text": "PCIe Gen6 has better signal integrity than the higher-speed 200G network signal",
    "numeric_mentions": [
      "200G"
    ],
    "temporal_mentions": []
  },
  "relation_type": "PCIE6_BETTER_SIGNAL_INTEGRITY_ENABLES_LONGER_PCB_ROUTE"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
host_interface	PCIe Gen6	PCIe
routing_medium	PCB	PCB
higher_speed_protocol	Ethernet	Ethernet
higher_speed_protocol	InfiniBand	InfiniBand

⑤ Human Review

請在 Properties 逐項確認：

• 原文 → Atomic Claim 是否忠實
• Atomic Claim → Semantic Frame 是否忠實
• Canonical Entity mapping 是否正確
• Epistemic mode 是否保留原文語氣
• 最後選擇 review_action

Review state

Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。