[GH-ISSUE #52] Why is it possible to disable congestion control? #50

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opened 2026-10-26 09:53:16 +00:00 by bsakaguchi · 3 comments
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Originally created by @JJBM123 on GitHub (Mar 7, 2025).
Original GitHub issue: https://github.com/deepseek-ai/DeepEP/issues/52

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Which congestion control was disabled, and why?

Originally created by @JJBM123 on GitHub (Mar 7, 2025). Original GitHub issue: https://github.com/deepseek-ai/DeepEP/issues/52 ![Image](https://github.com/user-attachments/assets/6072dce4-53a1-46ca-9c5e-daf34e5244ae) Which congestion control was disabled, and why?
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@sphish commented on GitHub (Mar 7, 2025):

Congestion control is a configurable setting on NICs and switches. If there is no congestion, you do not need to enable it, as doing so may reduce bandwidth.

<!-- gh-comment-id:2705488525 --> @sphish commented on GitHub (Mar 7, 2025): Congestion control is a configurable setting on NICs and switches. If there is no congestion, you do not need to enable it, as doing so may reduce bandwidth.
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@JJBM123 commented on GitHub (Mar 7, 2025):

There are two types of congestion control mechanisms: credit-based flow control and ECN. If congestion does not occur, there is no need to disable ECN?
is it the flow control that is being disabled?

<!-- gh-comment-id:2705721414 --> @JJBM123 commented on GitHub (Mar 7, 2025): There are two types of congestion control mechanisms: credit-based flow control and ECN. If congestion does not occur, there is no need to disable ECN? is it the flow control that is being disabled?
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@sphish commented on GitHub (Mar 9, 2025):

The congestion control algorithms I'm referring to are DCQCN, RTTCC, and similar protocols. What you mentioned, CBFC and ECN, are not congestion control algorithms.

<!-- gh-comment-id:2708627572 --> @sphish commented on GitHub (Mar 9, 2025): The congestion control algorithms I'm referring to are DCQCN, RTTCC, and similar protocols. What you mentioned, CBFC and ECN, are not congestion control algorithms.
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