VR2-0703
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Ethernet-Based Cluster Deployments - Line hint:
897
Context Before
Source: SemiAnalysis AI Networking Model ↗
The catch is that 102.4T Minipack-4 switches may not be shipped in time for Vera Rubin NVL72 rack deployments, and if this were to be the case, some NSF clusters will be shipped using 51.2T Minipack-3 switches instead. This means that gearboxes within the AECs will have to be used to convert 200G per lane SerDes speed at the NIC to 100G per lane SerDes speed at the switch.
Evidence
Context After
Hyperscaler Customization and Assembly Logistics
Customization
② Atomic Claim
SemiAnalysis 認為 xAI 會在 leaf、spine 與 core layers，使用 1.6T AECs 同時處理 NIC-to-TOR 與 switch-to-switch connectivity。
- Epistemic Mode:
INFERRED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"frame_type": "NARY_RELATION",
"participants": [
{
"node": {
"id": "02_companies/xAI",
"label": "xAI"
},
"role": "user_or_subject"
},
{
"node": {
"id": "04_knowledge_base/1.6T",
"label": "1.6T"
},
"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": [
"1.6"
],
"temporal_mentions": []
},
"relation_type": "USES"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| user_or_subject | xAI | xAI |
| used_entity | 1.6T | 1.6T |
| 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。