Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!epimass!jbuck
From: jbuck@epimass.EPI.COM (Joe Buck)
Newsgroups: comp.mail.uucp
Subject: Re: pathalias ignores fast Internet connections
Keywords: if else do
Message-ID: <3307@epimass.EPI.COM>
Date: 13 Jun 89 00:56:35 GMT
References: <1207@altos86.UUCP> <3288@epimass.EPI.COM> <742@crdgw1.crd.ge.com>
Reply-To: jbuck@epimass.EPI.COM (Joe Buck)
Organization: Entropic Processing, Inc., Cupertino, CA
Lines: 36

In article <742@crdgw1.crd.ge.com> davidsen@crdos1.UUCP (bill davidsen) writes:
> Let's not get carried away here, sending from a machine on the west
>coast all the way to uunet and then back via internet to Berkeley is not
>usually the best way to do things. There should be a better way to get
>to ucbvax than uunet, starting in CA.

The person I was replying to said he wanted things to go through uunet,
suggesting that it was near him.  Here are the official gateways for
the domains .arpa, .com, .gov, .mil, .edu, .org, .net, and .us from
UUCP-land:

apple, cornell, decwrl, harvard, rutgers, talcott, ucbvax, uunet

If my suggestion (about removing .foo.edu and host.foo.edu and so forth
from the map for Internet sites) were taken, and it's cheaper for you
to get to Berkeley than to uunet, your map data might have

.edu   ucbvax!%s

instead of

.edu	uunet!%s

>  What we need is to change pathalias to reduct the cost of a transition
>between nets, and thus generate better maps.

As designed, pathalias doesn't know, when generating routes, that there
is any relation between .com, .foo.com, and .bar.foo.com.  If it is
changed, we would need an indication of whether a subdomain is connected
to the main domain gateway by a fast network or a slow one.  Given the
existing pathalias program and the cost of sending comp.mail.maps around,
I'd rather encourage proposals to decrease its size than to increase it.


-- 
-- Joe Buck	jbuck@epimass.epi.com, uunet!epimass.epi.com!jbuck