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Description of the 2-ways and the 4-ways handshake

From: RaphaŽl Troncy <Raphael.Troncy@cwi.nl>
Date: Thu, 05 Mar 2009 14:44:39 +0100
Message-ID: <49AFD747.6070303@cwi.nl>
To: Media Fragment <public-media-fragment@w3.org>
Dear all,

I have made my stab on the description of the 2-ways and the 4-ways 
handshake proposal. See 
http://www.w3.org/2008/WebVideo/Fragments/wiki/HTTP_implementation

All comments welcome! I asked some questions (regarding the first HTTP 
response code in the 4-ways handshake). The pro/cons need also to be 
completed. In particular, I'm not sure about the cachability of the 
resource in both cases?

If the cachability is the primary concern of the 2-ways handshake, I 
observe that a UA can always use the 'Pragma' header and state a 
no-cache value, expressing the fact he might prefer to have only one 
roundtrip and no cache rather than 2 roundtrips. What do you think?

My main references were the excellent summary of Silvia sent a while 
back on this list [1] and the unvaluable help from Yves that I have 
bothered with 50 emails :-)
It is a wiki, so now, all, modify the page at your convenience :-)

   RaphaŽl

[1] 
http://lists.w3.org/Archives/Public/public-media-fragment/2008Oct/0060.html

-- 
RaphaŽl Troncy
CWI (Centre for Mathematics and Computer Science),
Science Park 123, 1098 XG Amsterdam, The Netherlands
e-mail: raphael.troncy@cwi.nl & raphael.troncy@gmail.com
Tel: +31 (0)20 - 592 4093
Fax: +31 (0)20 - 592 4312
Web: http://www.cwi.nl/~troncy/
Received on Thursday, 5 March 2009 13:45:24 GMT

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