VR2R-0660_r1

VR2R-0660

① SA Source

• Source: 開啟完整 SA 文章
• Section: Ethernet-Based Cluster Deployments
• Line hint: 571

Context Before

For Meta, we think the VR NVL72 deployments will comprise only of non-scheduled fabric (NSF) clusters built using Tomahawk 6-based Minipack-4 OCP Rack 102.4T switches in each datacenter.

Evidence

While Meta will be using optics to connect all the switches within its cluster, it will use 1.6T AECs for NIC-to-TOR connections once 1.6T AECs become broadly available in the market.

Context After

We expect the 1.6T AEC ramp to happen in the second half of calendar year 2026.

② Atomic Claim

Meta 會使用 optics 連接 cluster 內所有 switches；當 1.6T AEC 廣泛供應後，則會在 NIC-to-TOR connection 使用 1.6T AEC。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "02_companies/META",
        "label": "Meta"
      },
      "role": "operator"
    },
    {
      "node": {
        "id": "04_knowledge_base/Active electrical cable",
        "label": "AEC"
      },
      "role": "cable_technology"
    },
    {
      "node": {
        "id": "04_knowledge_base/NIC",
        "label": "NIC"
      },
      "role": "network_interface"
    }
  ],
  "qualifiers": {
    "condition_text": "TOR and optical switch-to-switch links are plain text",
    "numeric_mentions": [
      "1.6T"
    ],
    "temporal_mentions": [
      "once 1.6T AECs become broadly available"
    ]
  },
  "relation_type": "META_USES_OPTICS_INTRACLUSTER_AND_1P6T_AEC_NIC_TO_TOR"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
operator	Meta	META
cable_technology	AEC	04_knowledge_base/Active electrical cable
network_interface	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。