FYI:
I've recently upgraded a NPE-225 from 128->256M by
using off-the-shelf 256M dimm ordered from memoryx.com
I tried this as an experiment as I was doing other work
on my home network and (as of yet) I can see no reason (other than
smartnet which I don't have anyways ;) not to use a $80 dimm
as compared to whatever Cisco is selling/cisco approved.
- Jared
On Fri, Jun 01, 2001 at 02:40:27PM -0400, George Robbins wrote:
> I you have more then the minimum amount of memory, then you probably
> wnat the minimum I/O memory reservation. Where you'd want more
> would be "complex" interfaces like channelized t1/t3 or ATM, just
> a few t1's aren't going to be an issue.
>
> On 7200's only the NSE-1 / NPE-175-225 / NPE-400 have unified
> buffer and processor memory vs. separate SRAM/DRAM or multi-DIMM
> applications. Currrently there is no known handle for setting
> the fence on those boxes, but it seems that it's either a
> precentage or IOS version dependent, i.e. I have two NSE-1 based
> routers and the IOMEM size is different. 8-)
>
> George
>
> > From cisco-nsp-request@puck.nether.net Fri Jun 1 14:24:55 2001
> > Date: Fri, 1 Jun 2001 11:11:40 -0400
> > X-From_: marius@marius.org Fri Jun 1 11:11:40 2001
> > Received-Date: Fri, 1 Jun 2001 11:11:40 -0400
> > Old-Date: Fri, 1 Jun 2001 10:11:34 -0500
> > From: Marius Strom <marius@marius.org>
> > To: "Mark E. Mallett" <mem@mv.mv.com>
> > Cc: cisco-nsp@puck.nether.net
> > Subject: Re: Full BGP and memory
> > Mail-Followup-To: "Mark E. Mallett" <mem@mv.mv.com>,
> > cisco-nsp@puck.nether.net
> > References: <20010531183017.D743@greenie.muc.de> <200106010411.AAA25624@iridium.mv.net>
> > Content-Disposition: inline
> > User-Agent: Mutt/1.2.5i
> > In-Reply-To: <200106010411.AAA25624@iridium.mv.net>; from mem@mv.mv.com on Fri, Jun 01, 2001 at 12:11:45AM -0400
> > Old-X-Envelope-To: cisco-nsp
> > Resent-From: jared@puck.nether.net
> > Resent-Date: Fri, 1 Jun 2001 14:22:26 -0400
> > Resent-To: cisco-nsp@puck.nether.net
> > X-Mailing-List: <cisco-nsp@puck.nether.net> archive/latest/6587
> > X-Loop: cisco-nsp@puck.nether.net
> > Precedence: list
> > Resent-Sender: cisco-nsp-request@puck.nether.net
> >
> > Is there a "guideline" baseline for I/O mem usage? I'm noticing we're
> > not using over 2.5M right now for I/O, but there is 33.5M allocated.
> > We're not running BGP (yet, but will be early next week) and I'm curious
> > of the I/O usage will increase with the BGP or if it is strictly a
> > measure of interface utilization?
> >
> > It's a 3640, with two quad serial interfaces (5 of which are in use) and
> > 2 FE ports (1 of which is in use). Any info on I/O guidelines would be
> > /greatly/ appreciated (else I'll just watch and tweak)
> >
> > On Fri, Jun 01, 2001 at 12:11:45AM -0400, Mark E. Mallett wrote:
> > > On some routers (e.g. the 36xx) you can relieve the memory crunch
> > > somewhat by allocating less than the default slice to I/O memory
> > > via "memory-size iomem nn". At least in our case, we don't need
> > > one quarter of the 128MB available allocated to iomem . I don't
> > > see an equivalent for the 7200 series: is there one?
> > >
> > > -mm-
> > >
> >
> > --
> > Marius Strom <marius@marius.org>
> > Professional Geek/Unix System Administrator
> > URL: http://www.marius.org/
> > http://www.marius.org/marius.pgp 0xF5D89089 *updated 2001-02-26*
> >
> > It is a natural law. Physics tells us that for every action, there must be an
> > equal and opposite reaction. They hate us, we hate them, they hate us back and
> > so, here we are, victims of mathematics.
> > -- Londo, "A Voice in the Wilderness I"
> >
> >
-- 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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