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Posting-Version: version B 2.10.2 9/18/84; site down.FUN
Path: utzoo!watmath!clyde!burl!ulysses!allegra!princeton!down!honey
From: honey@down.FUN (Peter Honeyman)
Newsgroups: net.mail
Subject: Re: Adopted Response
Message-ID: <598@down.FUN>
Date: Thu, 3-Oct-85 00:09:11 EDT
Article-I.D.: down.598
Posted: Thu Oct  3 00:09:11 1985
Date-Received: Fri, 4-Oct-85 03:25:12 EDT
References: <1602@peora.UUCP> <3700007@ndm20>
Organization: CS Dept., Princeton University
Lines: 33

it has been suggested by ndm20!tp that pathalias do, er, well something
right about domains.  (i caught the drift but not the details.)  rev. 7
(from mod.sources) can make domain-like routes, although the syntax has
little to recommend itself.  for example,

pathalias -l princeton -d top-level-domains

princeton seismo
seismo top-level-domains
top-level-domains={edu}!!
edu={berkeley,mit,seismo}!!
berkeley={ucb-vax,dali}!!
mit={xx,eddie,bugs-bunny}!!

the output is about what i am shooting for.  the next step is to build
routes for berkeley.edu, edu, and such.  (this is valid only if princeton
is in the edu domain, which it's not, but for the sake of argument ...)
this would augment the output with

ucbvax.berkeley		seismo!ucbvax.berkeley.edu!%s
ucbvax.berkeley.edu	seismo!ucbvax.berkeley.edu!%s

there's bound to be some smearing of data to account for the unrooted
"top-level" domains.  also, an address like cai.princeton.edu.att.com (the
cai machine at the weco education center in princeton) presents a
potential cycle when traversing the domain graph.  finally, all of this
substantially expands the output file.

i'll let someone else try to mold mod.map's path.dom into this -- i gave
up on those guys years ago as a source of fresh ideas.  and they are
utterly incapable of understanding what source routing entails.

	peter


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