Re: [quicwg/base-drafts] NUM_PLACEHOLDERS MUST NOT be zero (#2753)

Kazuho Oku <> Mon, 27 May 2019 04:51 UTC

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From: Kazuho Oku <>
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Subject: Re: [quicwg/base-drafts] NUM_PLACEHOLDERS MUST NOT be zero (#2753)
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> I agree that it seems that a server SHOULD provide some sensible value. My guess -- based on some of my mental models -- is that this number should be between N/2 and N, where N is the maximum number of parallel requests the server allows.

FWIW the maximum we have been imposing is 16, we've been closing the connections that goes above that with an ENHANCE_YOUR_CALM error. I do not think that has caused interoperability issues.

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