From: Nigel Taylor (nigel_taylor@xxxxxxxxxxx)
Date: Fri Mar 02 2001 - 22:38:42 GMT-3
les,
there is a difference here.. it like everything else changing the code
from they way you got it means "modification". Most of the 2500 and 4000
code loads into RAM and will never be found in the *.mz* format on CCO.
However, the 7500 IOS images do come in that format.. let's see you try to
compress that code to fit on a flash card anything smaller than the size of
the image you downloaded.
Nigel..
>From: Les Hardin <hardinl@bah.com>
>Reply-To: Les Hardin <hardinl@bah.com>
>To: "CCIE Lab groupstudy.com" <ccielab@groupstudy.com>
>Subject: Re: HOT: Compressing IOS image info....
>Date: Fri, 02 Mar 2001 13:24:48 -0500
>
>Nigel,
>
>That's an odd comment from Cisco, considering you can download -mz- files
>from CCO!
>
>Les
>
>
>
>At 04:41 AM 3/2/2001 -0500, Nigel Taylor wrote:
> >All,
> > Just as a note, sometime ago I posted a thread that cisco did
>frown
> >one this type of modification to their software product. I also noted
>that
> >although the program(mzmaker) in question is in wide use, Cisco believes
> >they must stay committed to limiting the extent as to how widely used
>this
> >program ultimately becomes. I was also warned at the time of cisco's
> >intentions to prosecute anyone whom they deemed altered their product.
> >Please refer to the SLA that you agree to when downloading the IOS
>software
> >images, that pretty much explains it.
> >
> >Just thought I'd mention it...!
> >
> >Nigel..
> >
> >----- Original Message -----
> >From: Steven Weber <itweber@earthlink.net>
> >To: CCIE Lab groupstudy.com <ccielab@groupstudy.com>; David C Prall
> ><dcp@dcptech.com>
> >Sent: Thursday, March 01, 2001 11:00 PM
> >Subject: Re: Compressing IOS image
> >
> >
> > >
> > > I have 2 2501's here running enterprise + 12.1 with 8 flash and 16
> > > dram
> > >
> > > never crashes although it does takes an extra minute or two to boot up
> > > because the image needs to be uncompressed
> > >
> > >
> > > ----- Original Message -----
> > >
> > > From: David C Prall
> > >
> > > To: CCIE Lab groupstudy.com
> > >
> > > Sent: 3/1/01 10:53:21 PM
> > >
> > > Subject: Re: Compressing IOS image
> > >
> > >
> > >
> > >
> > >
> > > ----- Original Message -----
> > >
> > > From: mtcisco@yahoo.com
> > >
> > > Hi,
> > >
> > > Does anyone know how to compress IOS image. I have
> > >
> > > 2500 series router with 8mb flash and I want to load
> > >
> > > enterprise software that is 15mb in size. I don't have
> > >
> > > extra money to upgrade them to 16mb flash. If anyone
> > >
> > > knows how pleae let me know asap, my lab date is next
> > >
> > > week. Thanks
> > >
> > > Mitch
> > >
> > >
> > >
> > > Just remember that you are uncompressing the image into ram, and then
> > >
> > > attempting to run it from there. If the image is 15MB in size, you can
> > > most
> > >
> > > likely compress it down to just under 8MB's. As soon as it loads
>though
> > > it
> > >
> > > most likely will crash the router, since max ram in a 2500 is 16MB and
> > > you
> > >
> > > have just taken up 15 of that. Even worse most 2500's set aside 2 MB's
> > > as
> > >
> > > buffer leaving 14MB to start with.
> > >
> > >
> > >
> > > Believe me when I tell you, it will crash the router. I use images
>that
> > > are
> > >
> > > 10MB requiring 6MB of Ram. When you start doing tricky stuff they some
> > > times
> > >
> > > start having MALLOC and TRACEBACK errors, or worse lock up tight.
> > > 11.3
> > >
> > > enterprise is about as far as you can go doing this.
> > >
> > >
> > >
> > > The same applies to TFTP'ing the image as well.
> > >
> > >
> > >
> > > David C Prall dcp@dcptech.com http://dcp.dcptech.com
> > >
> > >
> > >
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