Re: [quicwg/base-drafts] Guidance on path retransmission timer (#2130)

janaiyengar <notifications@github.com> Thu, 13 December 2018 01:29 UTC

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Subject: Re: [quicwg/base-drafts] Guidance on path retransmission timer (#2130)
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The recommendation is 3 RTO, and the RTO computation includes a rule for initial values when no RTT measurement has happened. Did you mean a different recommendation? FWIW, initial retransmit can be a bit aggressive, for latency reasons, and I don't think path validation needs to be aggressive.

That said, it has always bothered me that we say 3RTO when we know that this is a different path, and the RTO measurement from other paths are unlikely to hold true. I'm fine with stipulating a constant here. I propose 3 x Initial RTOs = 600ms.

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