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Re: Serving agents and duplicates (was: Protocol changes in draft-allbery-usefor-usepro-00)

"Charles Lindsey" <chl@clerew.man.ac.uk> Tue, 09 January 2007 05:19 UTC

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From: Charles Lindsey <chl@clerew.man.ac.uk>
Subject: Re: Serving agents and duplicates (was: Protocol changes in draft-allbery-usefor-usepro-00)
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In <JB995z.1wC@clerew.man.ac.uk> "Charles Lindsey" <chl@clerew.man.ac.uk> writes:

>In <87bqlmgylo.fsf_-_@windlord.stanford.edu> Russ Allbery <rra@stanford.edu> writes:

>>I now have:

>(Presumably in section 3.6)

>>   4.  It SHOULD reject any article that matches an already-received and
>>       honored cancel message or Supersedes header field following the
>>       same rules as a relaying agent (Section 3.5).

>>which is basically the same text as for relaying agents.

Ah! I did not spot the significance of that ...

>>This would need to be added to relaying agents as well.

>ITYM serving agents. Relaying agents should always just pass the cancel
>message on and let serving agents downstream decide for themselves whether
>to honour it.

But having read the latest draft, I see that this is not so. Relaying
agents are invited to honour cancel messages, even though they have no
articles actually stored which they might want to hide/destroy. And there
is nothing in 5.3 to suggest that cancel messages require action from
other than serving agents.

So why this requirement in relaying agents?

-- 
Charles H. Lindsey ---------At Home, doing my own thing------------------------
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