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Re: [hybi] Flow control quota

Takeshi Yoshino <tyoshino@google.com> Mon, 25 June 2012 09:29 UTC

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From: Takeshi Yoshino <tyoshino@google.com>
Date: Mon, 25 Jun 2012 18:28:41 +0900
Message-ID: <CAH9hSJaqd1PgXXTdYxrCNtNRZviAmFVysXWDPJgYg2NR+anKuA@mail.gmail.com>
To: Jamie Lokier <jamie@shareable.org>
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Subject: Re: [hybi] Flow control quota
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On Sat, Jun 23, 2012 at 11:39 AM, Jamie Lokier <jamie@shareable.org> wrote:

> Martin Sustrik wrote:
> > On 13/06/12 08:50, Takeshi Yoshino wrote:
> >
> > >It's also an option that we give up frame-level extensions other than
> mux.
> >
> > That makes sense IMO. Fragmentation is an integral part of
> > multiplexing. Using it for other purposes is just asking for
> > trouble.
>

Based on the context, I think that Martin just agreed with me in terms of
avoiding use of fragmentation for other extensions such as compression but
didn't mean that fragmentation should be exclusive for multiplexing.


> Without fragmentation, that means a non-multiplexing proxy can't send
> a control message to say why it's dropping the connection, in the
> middle of a large message.  E.g. to distinguish between
> connection-reset (RST), connection-closed (FIN), and connection TCP
> keepalive timeout; something which the receiver can distinguish when
> there's no proxy.
>

Thanks. The fact that multiplexing itself locks fragmentation is sometimes
problematic. This is one example for that.

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