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Re: [quicwg/base-drafts] Why do control streams need to be typed? (#2224)

Kazuho Oku <notifications@github.com> Fri, 21 December 2018 02:00 UTC

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Subject: Re: [quicwg/base-drafts] Why do control streams need to be typed? (#2224)
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IIUC using type byte gives us
the flexibility to have extensions that uses dedicated streams.

In H3, it is reasonable to assume that some extensions would use their own streams to avoid HoLB (consider the fact that QPACK uses dedicated streams compared to HPACK that does not).

We cannot pre-assign stream IDs to each extension, because the streams ID is something aasigned by the transport in the order they are being created.

Therfore, we need the type byte.

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