[6587] in North American Network Operators' Group
Re: NAP/ISP Saturation WAS: Re: Exchanges that matter...
daemon@ATHENA.MIT.EDU (Tony Li)
Fri Dec 20 22:33:01 1996
Date: Fri, 20 Dec 1996 19:20:06 -0800 (PST)
From: Tony Li <tli@jnx.com>
To: nathan@netrail.net
CC: freedman@netaxs.com, indus@professionals.com, nanog@merit.edu
In-reply-to: <Pine.LNX.3.95.961220182612.8896C-100000@netrail.net> (message
from Nathan Stratton on Fri, 20 Dec 1996 18:28:05 -0500 (EST))
Yes, the cisco needs more backplane, but the CPU cant keep up. Have you
not watched a cisco meltdown when you lose a few NAP connections. Yes if
you do not want to run a lot of BGP, have small OSPF tables, and don't want
to do a lot of filtering then the 7500 is fine.
The CPU can't keep up because of the caching (which should have died by
now) and because the same CPU is used for switching. I believe that there
is a knob that guarantees that non-switching functionality get a guaranteed
percentage of the CPU. I strongly suggest you try it out.
Get the switching out of the way, and the box would be much happier. Get
the cache out of the way (a software only fix) and the box becomes much
more useful.
Tony
