VR2R-0580_r1

VR2R-0580

① SA Source

• Source: 開啟完整 SA 文章
• Section: Connecting GPUs in the Scale-Out InfiniBand Network
• Line hint: 484

Context Before

Broadly, there are three flavors of scale-out deployments for Vera Rubin NVL72. We have InfiniBand-based clusters which employ the NVIDIA Quantum series of switches, NVIDIA Ethernet-based clusters employing Spectrum series switches and lastly, non-Nvidia Ethernet such as Tomahawk-based, Cisco Silicon One or Teralynx-based Ethernet switches.

Evidence

Some Ethernet-based clusters deployed by hyperscalers will use AECs for NIC-to-TOR and switch-to-switch connections

Context After

, while other Ethernet-based clusters using only optical interconnects will usually adopt a multi-plane and multi-rail networking architecture. What is particularly noteworthy about Vera Rubin NVL72 deployments, however, is that it is the first Nvidia GPU generation where we will be seeing some Co-Packaged-Optics (CPO) deployments in the scale-out backend network.

② Atomic Claim

部分由 hyperscalers 部署的 Ethernet-based clusters，會使用 AECs 做 NIC-to-TOR 與 switch-to-switch connections。

• Epistemic Mode: ASSERTED
• Mapping Status: COMPLETE

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/Hyperscaler",
        "label": "hyperscalers"
      },
      "role": "user_or_subject"
    },
    {
      "node": {
        "id": "04_knowledge_base/Ethernet",
        "label": "Ethernet"
      },
      "role": "used_entity"
    },
    {
      "node": {
        "id": "04_knowledge_base/Active electrical cable",
        "label": "AECs"
      },
      "role": "used_entity"
    },
    {
      "node": {
        "id": "04_knowledge_base/NIC",
        "label": "NIC"
      },
      "role": "used_entity"
    }
  ],
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "relation_type": "USES"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
user_or_subject	hyperscalers	Hyperscaler
used_entity	Ethernet	Ethernet
used_entity	AECs	04_knowledge_base/Active electrical cable
used_entity	NIC	NIC

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。