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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rpi!ghost.dsi.unimi.it!univ-lyon1.fr!not-for-mail
- From: Christophe.Wolfhugel@grasp.insa-lyon.fr (Christophe Wolfhugel)
- Newsgroups: comp.mail.uucp
- Subject: Are costs relevant ? (was Re: UUCP map entries)
- Date: 12 Nov 1992 12:04:55 +0100
- Organization: INSA Informatique, Lyon, France
- Lines: 45
- Message-ID: <1dtdonINN58c@grasp1.univ-lyon1.fr>
- References: <3983@ecicrl.ocunix.on.ca>
- NNTP-Posting-Host: grasp1.univ-lyon1.fr
-
- In article <3983@ecicrl.ocunix.on.ca> clewis@ferret.ocunix.on.ca (Chris Lewis) writes:
- >On the contrary, they're *entirely* relevant.
-
- I'm not convinced anymore on that point. In the design, costs
- are definitely a good stuff, but seeing how they are more
- and more used it does not reflect anymore the reality.
-
- First point: should costs reflect reall costs, delays or a combination of
- both of those parameters ?
-
- A cheap way may take several days whereas a not much more expensive one
- takes a few hours. I recently had the case with a site in the usa.tx maps
- who had a pathalias route cheap and efficient.
-
- And...
-
- ... with the recent set of maps posted for Texas, many links have
- changed, and in fact new ones have been added. From a two-hops
- away from the Internet I switched to another two hops away via
- site ks.uucp (at IBM Austin). Too bad, this site is misconfigured and
- all mail get bounced. I declared the site as dead and restarted the
- pathalias. News entry point: another IP site in Texas and 3 or
- 4 hops to go to my correspondant. Another link dead, and that
- still for two or three more turns gave my unefficient routes
- with low cost...
-
- The problem can come from two points: not everyone declares its
- local calls with the same price. Nor does this really take into
- mind the delays in propagation and occupation of the different sites,
- etc...
-
- The used units do not seem anymore representative to me of the reality of
- the traffic and offten generate unadequate routes, or even impossible
- ones because lots of sites indicate links they don't handle anymore
- since years sometimes. And of course mailing to those sites is useless
- because they are badly or even not administrated. All of that is causing
- overwork to administrators wishing to provide a usable UUCP service
- to their users.
-
- I'm also conscient that changing the current cost scheme would
- be nearly impossible.
-
- --
- Christophe Wolfhugel | Email: Christophe.Wolfhugel@grasp.insa-lyon.fr
- "Pour le bien-etre de tous, il est interdit de pisser dans le metro."
-