Re: ISSUE: USEPRO 3.2.1 - Number of path entries per site

["Charles Lindsey" <chl@xxxxxxxxxxxxxxxx>]

In <45AD24EF.6DAE@xxxxxxxxxxxxxxxxx> Frank Ellermann <nobody@xxxxxxxxxxxxxxxxx> writes:

>Charles Lindsey wrote:

>>    Except possibly when relaying to other hosts on the same site, every
>>    injecting, relaying, or serving agent that accepts an article MUST
>>    update the Path header field ....

>An s/MAY/SHOULD/ in the -07 text might also do what you want.  If that's
>not your intention I fail to see the difference from the MAY.

The essential difference in what I am proposing is the replacement of "the
same news server" by "the same site", thus allowing more flexibility to
omit identities that are not serving any useful purpose. But no, I don't
waht to say you SHOULD omit them. It is just a mater of allowing some
discretion to the site.


>>        However, the last (leftmost) such <path-identity> so appended
>>        MUST be one that is expected by the destination site when it
>>        in turn comes to apply Step 3 above.

>Can that fly if different peers expect different leftmost identities ?
>If not you can only say SHOULD.

That would be an unusual situation. Why should it happen? But in any case,
it is a matter for negotiation between the peers concerned. It might even
be necessary to add diferent identities to the Path according to which
peer you were relaying it to, which would be horribly messy.

But if MISMATCH problems are to be avoided, I think that MUST is needed,
and if ingenious site admins dream up bizarre schemes which still obey
that MUST, then they are welcome to do so.

-- 
Charles H. Lindsey ---------At Home, doing my own thing------------------------
Tel: +44 161 436 6131 Fax: +44 161 436 6133   Web: http://www.cs.man.ac.uk/~chl
Email: chl@xxxxxxxxxxxxxxxx      Snail: 5 Clerewood Ave, CHEADLE, SK8 3JU, U.K.
PGP: 2C15F1A9      Fingerprint: 73 6D C2 51 93 A0 01 E7 65 E8 64 7E 14 A4 AB A5