[c-nsp] Cisco 75xx memory limitations wasRE: Sup32 Memory upgrade

[Rodney Dunn]

On Thu, Apr 27, 2006 at 11:00:11PM -0700, Scott Granados wrote:
> What would the limit for accepted routes be on a cisco 75xx running rsp4
> with 256 mb of memory?

It's not that simple because you have to evaluate the # of interfaces
(they take up memory), other features, IOS image size, etc...

> 
> Assuming cef distributed.

dCEF just affects the amount of memory you need on the VIPs.

> 
> Is it also 192K routes?

Again..not that cut and dry. You could ask for a 'sh mem stat' from
some folks on the list along with 'sh idb' and 'sh ver' to get a rough
idea.

I'd say 192K is probably putting you close to the edge with dual feeds
and many interfaces.

Rodney

> 
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of 'Kristian
> Larsson'
> Sent: Thursday, April 27, 2006 10:20 PM
> To: Asbjorn Hojmark - Lists
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Sup32 Memory upgrade
> 
> On Thu, Apr 27, 2006 at 11:06:26PM +0200, Asbjorn Hojmark - Lists wrote:
> > > I'll probably go with 512MB for the supervisor and 1GB for the
> > > MSFC, is this a wise choice or should I reconsider?
> > 
> > Before you do that, make sure you know what you're going to get.
> > 
> > You are *not* going to get a router that will hold more routes.
> > To get that, you also need to upgrade the PFC3B, and this upgrade
> > isn't available (yet). (The Sup32 doesn't support PFC3BXL).
> I am aware of this but my current 256MB will be
> the first limit.
> > 
> > The PFC3B defaults to 192k routes and is tunable to 239k, IIRC.
> I was under the impression that it will hold 256K
> routes and thus the system would hold for ~2-3
> years.
> 
> > PS: The current table is in the order of 185k. Anyone care to
> >     guess when we'll hit 192k and lots of PFC3B systems out there
> >     will start sweating?
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