VR2R-0134_r1

VR2R-0134

① SA Source

• Source: 開啟完整 SA 文章
• Section: ConnectX-9
• Line hint: 109

Context Before

The ConnectX-9 is largely iterative from ConnectX-8, with the same 800G networking bandwidth and 48-lane PCIe6 switch capability.

Evidence

However, CX-9 now supports 800G Ethernet with 4x200G PAM4 SerDes, compared to CX-8 that only supported it on InfiniBand.

Context After

For the Rubin platform, NVIDIA is doubling the number of NICs per GPU to achieve 2x scale-out bandwidth.

② Atomic Claim

CX-9 現在可透過 4×200G PAM4 SerDes 支援 800G Ethernet；相較之下，CX-8 的 800G 僅支援 InfiniBand。

• Epistemic Mode: ASSERTED
• Mapping Status: COMPLETE

③ Semantic Frame

{
  "comparison_expression": "CX-9 supports 800G Ethernet via 4x200G PAM4 SerDes; CX-8 supported 800G only on InfiniBand.",
  "entities": [
    {
      "id": "04_knowledge_base/ConnectX-9",
      "label": "CX-9"
    },
    {
      "id": "04_knowledge_base/ConnectX-8",
      "label": "CX-8"
    },
    {
      "id": "04_knowledge_base/Ethernet",
      "label": "Ethernet"
    },
    {
      "id": "04_knowledge_base/InfiniBand",
      "label": "InfiniBand"
    },
    {
      "id": "04_knowledge_base/SerDes",
      "label": "SerDes"
    }
  ],
  "frame_type": "COMPARISON",
  "metric": "800G_NETWORK_PROTOCOL_SUPPORT",
  "operator": "DIFFERS_FROM",
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [
      "800G",
      "4x200G"
    ],
    "temporal_mentions": [
      "now"
    ]
  }
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
entity	CX-9	ConnectX-9
entity	CX-8	ConnectX-8
entity	Ethernet	Ethernet
entity	InfiniBand	InfiniBand
entity	SerDes	SerDes

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。