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Re: SPDY = HTTP/2.0 or not ?

From: Barry Leiba <barryleiba@computer.org>
Date: Sun, 25 Mar 2012 14:04:53 +0200
Message-ID: <CAC4RtVDOR-hxYOwrRD6nt6tB9nkAfR=ejZppHWsXJTqWm61Q6A@mail.gmail.com>
To: Poul-Henning Kamp <phk@phk.freebsd.dk>
Cc: HTTP Working Group <ietf-http-wg@w3.org>
Let's be a little clearer about one thing:

>>If we see SPDY as a transport layer only yes; if we consider it
>>HTTP/2.0; maybe not.
>
>        1. HTTP/1.1 already has two different widely used transport
>           protocols: HTTP and HTTPS

HTTP and HTTPS are NOT transport protocols.  TCP is the transport protocol
that HTTP usually uses (compare with UDP and SCTP).  HTTPS also uses TCP,
with TLS on the half-layer in between.

It's important to keep that in mind, so we don't confuse ourselves when we
talk about UDP, for instance.  SPDY affects TCP.  Whether we consider SPDY
to be a transport protocol on its own, a transport-layer modification of
TCP, or, like TLS, something we refer to as "transport layer" but that's
actually sitting on a half-layer in between, is then a matter of discussion
and understanding.

And as PSA said, this is all for the HTTP 2.0 discussion to have, along
with I-Ds to use as discussion points.

Barry, incoming AD
Received on Sunday, 25 March 2012 12:05:21 GMT

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