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From: Jim Whitehead <ejw@ics.uci.edu>
To: ietf-dav-versioning@w3.org
Date: Fri, 21 Jul 2000 10:28:35 -0700
Message-ID: <NDBBIKLAGLCOPGKGADOJIEHEDHAA.ejw@ics.uci.edu>
Subject: Delta Encoding in HTTP
This is a feature that would need to interact well with DeltaV versioning
services.
- Jim
---------
A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : Delta encoding in HTTP
Author(s) : J. Mogul, B. Krishnamurthy, F. Douglis, A. Feldmann,
Y. Goland, A. van Hoff, D. Hellerstein
Filename : draft-mogul-http-delta-05.txt
Pages : 45
Date : 19-Jul-00
Many HTTP requests cause the retrieval of slightly modified
instances of resources for which the client already has a
cache entry. Research has shown that such modifying
updates are frequent, and that the modifications are
typically much smaller than the actual entity. In such
cases, HTTP would make more efficient use of network
bandwidth if it could transfer a minimal description of the
changes, rather than the entire new instance of the
resource. This is called 'delta encoding.' This
document describes how delta encoding can be supported as a
compatible extension to HTTP/1.1.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-mogul-http-delta-05.txt
Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
"get draft-mogul-http-delta-05.txt".
A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt