[babel] Martin Duke's Discuss on draft-ietf-babel-rtt-extension-05: (with DISCUSS and COMMENT)

Martin Duke via Datatracker <noreply@ietf.org> Thu, 15 February 2024 19:08 UTC

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Date: Thu, 15 Feb 2024 11:08:36 -0800
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Subject: [babel] Martin Duke's Discuss on draft-ietf-babel-rtt-extension-05: (with DISCUSS and COMMENT)
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Martin Duke has entered the following ballot position for
draft-ietf-babel-rtt-extension-05: Discuss

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DISCUSS:
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After discussion with the IESG and another review of the document, I understand
quite a bit more and would like to withdraw most of the DISCUSS points.

Ultimately, I'd just like a clearer statement that Section 4 is non-normative
and nodes are free to use any method to compute RTT from samples, and cost from
RTT, as that doesn't prevent convergence of the protocols. As with any
Distance-vector protocol, if cost computation is not uniform you will get some
silly results.


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COMMENT:
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- Is there any notion of RTT variance, jitter, or other statistical properties
in this framework? ISTM to me that 20 ms RTT + 50 ms variance is a worse link
than 40ms RTT + 2ms variance.