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[quicwg/base-drafts] kDefaultInitialRtt too large (#752)

Lars Eggert <notifications@github.com> Tue, 29 August 2017 06:40 UTC

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Date: Tue, 29 Aug 2017 06:39:59 +0000
From: Lars Eggert <notifications@github.com>
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Subject: [quicwg/base-drafts] kDefaultInitialRtt too large (#752)
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Opening this for @huitema, who on Slack said:

> kDefaultInitialRtt (default 100ms):
>    The default RTT used before an RTT sample is taken.
>
> That's seriously optimistic. If there were direct fiber path everywhere, 100ms would be enough for 20,000 km, half the Earth circumference. But there are not that many fibers, and intercontinental ping times are more like 150-200 ms. And of course a satellite ping is 300 ms.

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