VR2R-0606
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Connecting GPUs in the Scale-Out InfiniBand Network - Line hint:
783
Context Before
Source: SemiAnalysis AI Networking Model ↗
We think the second cluster with two switch planes will likely be the more prevalent reference architecture for Vera Rubin NVL72 InfiniBand deployments.
Evidence
Aside from the X800-Q3400 air-cooled switch, NVIDIA will also offer a CPO version, which is the X800-Q3450 containing the same 144 ports of 800G. As pointed out earlier, what is unique about both switches is that each switch box consists of four 28.8T Quantum-3 Switch ASICs for a total of 115.2T per box switching capacity. When used in conjunction with the VR NVL72 servers, the signal from the NIC at the leaf layer is split four ways – 200G each way – to each switch ASIC within the box. Such a configuration bears logical equivalence to a 4-plane network architecture.
Context After
Source: SemiAnalysis AI Networking Model ↗
② Atomic Claim
The VR NVL72 Quantum switch-box fan-out into four 200G paths is logically equivalent to a four-plane network.
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "refers to VR2R-0605 switch-box signal split",
"numeric_mentions": [
"4-plane"
],
"temporal_mentions": []
},
"reason": "LOGICAL_NETWORK_PLANE_EQUIVALENCE_WITHOUT_SINGLE_CANONICAL_ENTITY",
"statement": "The VR NVL72 Quantum switch-box fan-out into four 200G paths is logically equivalent to a four-plane network."
}④ Canonical Entity Mapping
- 此
CLAIM_ONLYrevision 沒有 canonical Entity mapping。
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 VR NVL72 Quantum switch-box fan-out into four 200G paths is logically equivalent to a four-plane network.
V2 Semantic Frame Draft
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "refers to VR2R-0605 switch-box signal split",
"numeric_mentions": [
"4-plane"
],
"temporal_mentions": []
},
"reason": "LOGICAL_NETWORK_PLANE_EQUIVALENCE_WITHOUT_SINGLE_CANONICAL_ENTITY",
"statement": "The VR NVL72 Quantum switch-box fan-out into four 200G paths is logically equivalent to a four-plane network."
}V2 Revision Metadata Draft
{
"epistemic_mode": "ASSERTED",
"mapping_status": "PARTIAL"
}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。