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From: rob@philabs.UUCP
Newsgroups: news.misc
Subject: Re: The USENET Backbone (Last changed: 30 April 1987)
Message-ID: <1058@briar.Philips.Com>
Date: Wed, 6-May-87 10:04:48 EDT
Article-I.D.: briar.1058
Posted: Wed May  6 10:04:48 1987
Date-Received: Sat, 9-May-87 06:32:36 EDT
References: <15219@gatech.gatech.edu> <3753@oddjob.UChicago.EDU>
Reply-To: rob@briar.philips.com.UUCP (Rob Robertson)
Organization: Philips Laboratories, Briarcliff Manor, NY
Lines: 25

In article <3753@oddjob.UChicago.EDU> matt@oddjob.uchicago.edu (Sherlock, the keen-eyed detective) writes:
>In article <15219@gatech.gatech.edu> usenet@gatech.edu writes:
>) [Most recent change: 30 April 1987 by spaf]
>After a couple unanswered mail messages to Gene I still don't
>understand the application of this definition.  If all the links
>in a chain like
>		ihnp4 -- x -- y -- hao
>are low-delay and full feeds, are x & y then backbone sites?
>Is the answer different in a case like ihnp4 -- z -- hao?

No, it also depends on who they feed.  If x and y feed 5-10 other sites
they are probably backbones, if they don't they aren't.

Philips has a site, prls, that we and pyramid feed.  Prls, however, only
feeds one other site, so they are not a back bone.  The definition is
a little subjective, but then again trying to figure out metrics on
how to define a backbone site is pretty difficult.

rob


-- 
       william robertson			rob@philabs.philips.com

		"indecision is the key to flexibility"