Re: [quicwg/base-drafts] When to send the SETTINGS frame (#2945)

Martin Thomson <> Thu, 08 August 2019 02:51 UTC

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From: Martin Thomson <>
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Subject: Re: [quicwg/base-drafts] When to send the SETTINGS frame (#2945)
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I think that's overstating the complexities.

If you don't do this, you get vanilla h3.  That's the fallback position.  It's almost like you are arguing for that, because most of these relate directly to that point.

If you do bind SETTINGS to tickets, you get to use nice h3 features like QPACK in 0-RTT and after resumption.  The question we're grappling with is not whether to have the feature (I hope; if we are please open an issue so we can have that discussion), but more how to most cleanly implement that coupling.

Putting SETTINGS in the transport parameters doesn't fix the problem, it just moves it around.  The asymmetry it adds doesn't do anything to remove any asymmetries elsewhere.

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