general guidelines for squeaking by:
Make sure you're using a "small" image "-is" vs. "-a3jsv" or something
and keep an eye on your syslog for malloc-fails or cef-disabled or
similar messages.
Avoid "expensive" BGP options like "soft reconfig", "bgp multipath" or
"dampening" which can increase the size of bgp tables. Don't run an
IGP unless you need one. 8-)
George
> From cisco-nsp-request@puck.nether.net Thu May 31 11:50:31 2001
> Resent-Date: Thu, 31 May 2001 11:50:12 -0400
> Received-Date: Thu, 31 May 2001 11:48:04 -0400
> Date: Thu, 31 May 2001 11:48:03 -0400
> From: Jared Mauch <jared@puck.nether.net>
> To: KF <kf@reign.sk>
> Cc: cisco-nsp@puck.nether.net
> Subject: Re: Full BGP and memory
> References: <004a01c0e9ad$851d7c50$30c960c2@reign.sk>
> Content-Disposition: inline
> User-Agent: Mutt/1.2.5i
> In-Reply-To: <004a01c0e9ad$851d7c50$30c960c2@reign.sk>; from kf@reign.sk on Thu, May 31, 2001 at 04:42:16AM -0400
> Resent-From: cisco-nsp@puck.nether.net
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>
> I'm able to squeak by w/ 128M in my 7200 running full tables
> (with two feeds) and cef enabled.
>
> I would recommend getting a VXR upgrade asap and upgrading to 256M
> incase something ugly happens like a bunch of prefixes get leaked to you
> by a upstream/peer and suck up a lot of your memory.
>
> - Jared
>
> On Thu, May 31, 2001 at 04:42:16AM -0400, KF wrote:
> > Hi,
> >
> > What do You think about running full BGB table with CEF enabled on 128MB RAM
> > 7206 ? IOS 12.0.17S?...
> >
> > Config should include one ATM interface and some FastEthernet Interfaces...
> >
> > Let me say that full bgp yet is around 10500 prefixes and about 10-15000
> > prefixes from others.
> >
> > Totaly it eats 15MB + 2MB, + 18MB routing table, CEF will eat around 20MB
> > ...
> > so totaly it is 55 MB..
> >
> > After loading and unpacking the image the process memomry is total about
> > 109MB - 55MB - other process (IP, Buffers..)30-35MB is totaly 19-24 MB
> > free..
> >
> > I see buffer misses ... some drops (seems like not so critical)....
> >
> > Is possible to run full BGP on such config.... ?...
> >
> > greetz Alex
>
> --
> Jared Mauch | pgp key available via finger from jared@puck.nether.net
> clue++; | http://puck.nether.net/~jared/ My statements are only mine.
>
>
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