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add doc for Ethernet Scale Up AI Cluster Architecture#2051

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a114j0y wants to merge 13 commits intosonic-net:masterfrom
a114j0y:scale-up
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add doc for Ethernet Scale Up AI Cluster Architecture#2051
a114j0y wants to merge 13 commits intosonic-net:masterfrom
a114j0y:scale-up

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@a114j0y a114j0y commented Jul 31, 2025

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jeflo commented Aug 6, 2025

Couple of comments on the 0.6 version

  1. It would be nice to add a section describing the “rack” view from a networking POV.
  2. Page8, “Ethernet MAC” section, diagram in this section mentioned the “AIFH” term without first defining it. We should also align the terminology with later “ID Lookup” section.
  3. Page17, “ID lookup” section. In this section, the two sentences that mentioned “VRF” seems abrupt. Good to elaborate how it relates to the ID lookup and the haders.
  4. Given this is an architectural document, feature details for features that are relevant to Scale-up (e.g. PFC, CBFC, LLR etc) are probably outside the scope of this document. But it would be good to add a section that references these features in more details (e.g. SONIC HLD or WIP design docs).

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- [Future Features in SONiC](#future-features-in-sonic)

## Revisions
- **July 27, 2025:** Moved version 0.6 to github by Joy Qin
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We are actually at 0.7 after 8/30. The most recent updater forgot to update date inside the doc.

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linux-foundation-easycla bot commented Nov 17, 2025

CLA Not Signed

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* **LLR Implementation**:

* [GitHub Pull Request #1](https://github.com/rck-innovium/SAI/pull/1)
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Please use this link: opencomputeproject/SAI#2225

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Please use this link: opencomputeproject/SAI#2225

Got it. Thanks!

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sai pull request link updated

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Add section "An example dual-rack scale-up network design"
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Add dual_rack_topo.png for section "An Example Dual-rack Scale Up System"
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