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- Path: sparky!uunet!news.claremont.edu!ucivax!gateway
- From: Peter.Sylvester@inria.fr
- Subject: (none)
- Message-ID: <9207271452.AA25947@nuri.inria.fr>
- Newsgroups: comp.protocols.iso.x400
- Approved: usenet@q2.ics.uci.edu
- Lines: 34
- Date: 27 Jul 92 14:54:14 GMT
-
- > *In additions the X.400(92) standard seems to be ready soon including
- > *a lot of aditional highly interesting features (file transfer, voice
- > *mail, ...). What is still missing in the X.400 family of standards is
- > *something like a news system (USENET etc.).
-
- > I vaguely remember hearing that X.400(92) would include some kind of
- > standard for exchanging news between different systems. Has this been
- > dropped or have I received false information from the beginning ?
-
- X.400 is still a standard for e-mail, i.e. asynchronous transfer of data.
- These data may be simple text, or have structures like 'an ftam like encoded
- file'. It is not an application for news unless .....
-
- .... where did I read something about not transfering a document but just
- a reference to it? The sending message transfer agent determines by whatever
- means that it would be better not to transfer some (large?) body part but rather
- a globally unique reference to it that can be used later when the user agent
- is asked to present the body to the user. The actual body part will then be
- retrieved by FTAM or something like that (it may also be a reference to some
- CD containing a 2 hours video) that is available in a library or was distributed
- using 'snail mail').
- Anyway, the technique can be used for news: You distribute just a set of
- as global references to messages. A news receiver user agent would then either use
- ftam to retrieve data, or maybe it would be sufficient to generate
- a nondelivery report saying that this or that file cannot be 'deferenced', so
- that the originating mta would do this for you and send the dereferenced data,
- i.e. those articles that you do not have.
-
-
-
- Ah well, I read this (the first part) in one of the ERCIM newsletters, is someone
- from GMD Berlin listening?
-
- Peter Sylvester -- Inria France
-