VR2R-0653
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Ethernet-Based Cluster Deployments - Line hint:
869
Context Before
Source: SemiAnalysis AI Networking Model ↗
As the per GPU bandwidth continues to scale to 3.2T, it is not hard to imagine a 4-plane network using SN6800 switches, where each 3.2T GPU is split four ways to connect to four different switch boxes at 800G per link.
Evidence
In fact, if you have not already noticed – there are strong parallels between the X800-Q3400 switch (non-CPO) explained earlier in the article and a CPO switch in that both facilitate high-radix, multi-plane networking architectures while encasing within the box complex cabling that saves customers on the hassle of cable management.
Context After
Outside of the NVIDIA ecosystem, the main switch ASIC players are Broadcom, which will be manufacturing the Tomahawk 6 and Tomahawk 6 CPO ASICs, as well as Cisco, which recently announced the G300 102.4T ASIC. There are two flavors of hyperscaler backend network deployments:
② Atomic Claim
X800-Q3400 switch 與 CPO switch 有明顯相似性：兩者都能支援 high-radix、multi-plane networking architecture。
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"frame_type": "NARY_RELATION",
"participants": [
{
"node": {
"id": "04_knowledge_base/Quantum X800",
"label": "Q3400"
},
"role": "switch_platform"
},
{
"node": {
"id": "04_knowledge_base/CPO",
"label": "CPO"
},
"role": "technology"
}
],
"qualifiers": {
"condition_text": "architectural comparison",
"numeric_mentions": [],
"temporal_mentions": []
},
"relation_type": "Q3400_AND_CPO_ENABLE_HIGH_RADIX_MULTIPLANE_NETWORKS"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| switch_platform | Q3400 | 04_knowledge_base/Quantum X800 |
| technology | CPO | CPO |
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
X800-Q3400 switch 與 CPO switch 有明顯相似性：兩者都能支援 high-radix、multi-plane networking architecture。
V2 Semantic Frame Draft
{
"frame_type": "NARY_RELATION",
"participants": [
{
"node": {
"id": "04_knowledge_base/Quantum X800",
"label": "Q3400"
},
"role": "switch_platform"
},
{
"node": {
"id": "04_knowledge_base/CPO",
"label": "CPO"
},
"role": "technology"
}
],
"qualifiers": {
"condition_text": "architectural comparison",
"numeric_mentions": [],
"temporal_mentions": []
},
"relation_type": "Q3400_AND_CPO_ENABLE_HIGH_RADIX_MULTIPLANE_NETWORKS"
}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。