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Re: The Gorgon's Knot. Was: Re: Verio Peering Question
From: Michael Whisenant <mwhisen () foreigner whisenant net>
Date: Fri, 28 Sep 2001 15:33:51 -0500 (CDT)

Got a question, so a 7513MX2/8 fairly new model within Cisco still ONLY
supports 256MB of Ram. So lets track the trends and try to predict when Cisco
will force everyone into a new BGP master router? The issue as well
remains that with 256MB RAM and RSP8 in a 7513 on a default free network having
200+ peering sessions and 100K+ routes consumes well over 128MB of RAM and the
processor load spikes into the 80%-100%  when major instabilites happen.
Continue  with uncontrolled growth to the Internet routing table and you will
soon be replacing it with something bigger (but that would help the stock
pricing rise aobe $12 share, huh).

On Fri, 28 Sep 2001, Vincent J. Bono wrote:

Any Taiwan-made PC can swallow much more. The limit is not clear but is
certainly far away from us.

I want to you to put a couple of channelized DS-3s, an ATM OC12c,
and a POS OC48c to your backbone plus all the BGP peers you can sign
up at AADS on a PC.

Yes but you can't put all that on the "loaded" 7200s you mentioned either.
I think the point he was trying to make was not that we should use PCs as
but that routers we *do* use are at least as powerful as Taiwan PCs (for
this application).

When Sprint was filtering there was a demonstrable need based on the 64meg
limit that
mainstream routers had for memory at the time.  I do not see that there is
any such physical
limitation today and I guarentee that the router vendors (all two of them)
have learned the lesson
of not including enough address lines on the equipment to allow for easy
memory upgrades.


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