VR2R-0551
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Scale-Up Network - NVLink 6 - Line hint:
464
Context Before
Each VR NVL72 Switch tray contains four NVLink 6 Switch ASICs and one system management module. The design of the Rubin NVLink 6 Switch tray is also simpler and relatively seamless compared to the first Oberon NVLink 5 Switch released for GB200 because Rubin NVLink 6 Switch trays will not use flyover cables. As such, all NVLink signals will run over the PCB.
Evidence
The NVLink 6 Switch board is liquid cooled
Context After
and will be covered with a cold plate, which is a single module. Connected to the NVSwitch tray is the system management module (SMM) that comes with a CPU and acts as a host to the switch tray. The switch tray to SMM connection uses flyover cables, but this is the only flyover cable connection required in the entire Vera Rubin NVL72 system.
② Atomic Claim
NVLink 6 Switch board 採 liquid cooling。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"attribute": "UNSPECIFIED_ATTRIBUTE",
"context_nodes": [],
"entity": {
"id": "04_knowledge_base/NVLink",
"label": "NVLink"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [
"6 S"
],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [
"6 S"
],
"value_text": "NVLink 6 Switch board 採 liquid cooling。"
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| entity | NVLink | NVLink |
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。