VR2R-0144::SPLIT01
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Spectrum-6 - Line hint:
181
Context Before
Source: Nvidia VR NVL72 Component BoM and Power Budget Model ↗
Evidence
While not part of the Rubin NVL72 rack, Spectrum-6 CPO enables even larger scale-out clusters with its doubled radix. The design retains the same features as Spectrum-5, with 8 IO chiplets surrounding the main switch die. 102.4T switching bandwidth is achieved with 512x 200G SerDes. 32 3.2T optical engines on the package convert these electrical signals to optical links, each with a detachable fiber connector. The SN6810 features one of these chips, while the SN6800 houses four, multiplexed together to create a 409.6T switch box. There will also be a non-CPO version with pluggable OSFP cages in the SN6600. The non-CPO version will be more common in our view.
Context After
Rubin Oberon Rack: NVL72 not NVL144 nor NVL36
Since the announcement of GB200 at Nvidia GTC 2024, the concept of an AI server system has shifted from a chassis to a rack scale system. In our GB200 article ↗, we discussed the evolution of Nvidia AI server form factor from HGX (8 GPU per node) to Oberon (NVL72 rack scale). While the HGX form factor still exists, the majority of Nvidia’s Blackwell GPUs are integrated in the Oberon form factor. Rubin will also be offered in both HGX and Oberon systems.
② Atomic Claim
The Spectrum-6 CPO package has 32 optical engines rated at 3.2T each.
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"attribute": "OPTICAL_ENGINE_CONFIGURATION",
"context_nodes": [
{
"id": "04_knowledge_base/CPO",
"label": "CPO"
},
{
"id": "04_knowledge_base/封裝",
"label": "package"
},
{
"id": "04_knowledge_base/Optical Engine",
"label": "optical engines"
}
],
"entity": {
"id": "04_knowledge_base/Spectrum-6",
"label": "Spectrum-6"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [],
"value_text": "The Spectrum-6 CPO package has 32 optical engines rated at 3.2T each."
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| entity | Spectrum-6 | Spectrum-6 |
| context_0 | CPO | CPO |
| context_1 | package | 04_knowledge_base/封裝 |
| context_2 | optical engines | 04_knowledge_base/Optical Engine |
⑤ V2 Draft（需要修正時直接編輯）
Inline repair
只編輯以下三個 Draft 區塊。完成後將
review_action設為REQUEST_REPAIR，再手動執行 Repair Preview。
執行腳本前，Draft 不會寫入 Claim Store 或 Graph。
V2 Atomic Claim Draft
The Spectrum-6 CPO package has 32 optical engines rated at 3.2T each.
V2 Semantic Frame Draft
{
"attribute": "OPTICAL_ENGINE_CONFIGURATION",
"context_nodes": [
{
"id": "04_knowledge_base/CPO",
"label": "CPO"
},
{
"id": "04_knowledge_base/封裝",
"label": "package"
},
{
"id": "04_knowledge_base/Optical Engine",
"label": "optical engines"
}
],
"entity": {
"id": "04_knowledge_base/Spectrum-6",
"label": "Spectrum-6"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [],
"value_text": "The Spectrum-6 CPO package has 32 optical engines rated at 3.2T each."
}
}V2 Revision Metadata Draft
{
"epistemic_mode": "ASSERTED",
"mapping_status": "COMPLETE"
}⑥ 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。