[c-nsp] non-VXR 7200 and 12.3

[Babak Farrokhi]

Cisco's fault. We all see 7200 VXR and non-VXRs around with different
NPEs and different IOS images. But most people don't know the exact
difference between VXR and non-VXR and consequently the
incompatibility issues (both in hardware and software). I believe 7200
series are widely deployed, but there is not enough technical
information like this available, except in mailing lists and usenet.
Despite the fact that there are some cisco engineers on the list, can
anyone point us to some official document from cisco that explains the
diffrence between VXR and non-VXR?

On 4/27/05, Buhrmaster, Gary <gtb at slac.stanford.edu> wrote:
> I do not disagree that it would be difficult, but
> as I recall, it was "broken" before the official
> EOS/EOL of the NPE-150 (Feb 2005).  I complained
> at the time that technically the NPE-150 was
> still supported, but to no avail.  I have to
> admit I was NOT pleased with the response that
> it would be "too difficult".  Having been both
> a hardware engineer and a software engineer in
> previous lifetimes, "too difficult" is often
> used to explain away someone not thinking hard
> enough about alternatives.  Especially if one
> can procrastinate for 3 months and reach EOL.
> Yeah, the whole episode leaves a bad taste in
> my mouth, and makes me wonder where that
> vaunted Cisco engineering talent is now.
> 
> Gary
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Rodney Dunn
> Sent: Tuesday, April 26, 2005 11:11 AM
> To: Ed Ravin
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] non-VXR 7200 and 12.3
> 
> That's exactly what you will see.
> 
> We had to make a change to support the newer faster
> NPE's and we couldn't do it without breaking the old
> unsupported EOS/EOL NPE-100 and 150.
> 
> We did try but couldn't make them work.
> 
> It was not some marketing move.
> 
> Rodney
> 
> On Mon, Apr 25, 2005 at 06:51:19PM -0400, Ed Ravin wrote:
> > On Mon, Apr 25, 2005 at 06:07:40PM -0400, Robert Boyle wrote:
> > > At 12:02 PM 4/25/2005, you wrote:
> > > >On Mon, Apr 25, 2005 at 12:35:51PM -0300, Lucas Iglesias wrote:
> > > >> We are about to buy a used 7206 (at a very cheap prize), but my
> > > >experience
> > > >> with them is limited to the VXR series.
> > > >
> > > >> 2- Does them support the same Image?
> > > >
> > > >No.  The non-VXR boxes won't boot anything later than 12.2T.  If you don't
> > > >need anything later than that, they will serve you well.
> > >
> > > I've never heard that. We run 12.3 on a couple of our 7200 non-VXR boxes.
> > > Same images. They are great for edge boxes. You are limited to the
> > > unobtainable NPE-225 if you want 256MB of RAM and you can never have more
> > > than that since the NPE-400/G1 are not supported in the non VXR chassis.
> >
> > We couldn't get our NPE-150 box (128 MB) to boot anything past
> > 12.2T.  Here's what it said:
> >
> >   00:00:05: %SYS-3-LOGGER_FLUSHING: System pausing to ensure console
> > debugging
> > output.
> >
> >   %SYS-4-CONFIG_NEWER: Configuration from version 12.2 may not be correctly
> > understood
> >   *Feb 14 11:30:54: %SYS-3-LOGGER_FLUSHING: System pausing to ensure
> > console
> > debugging output.
> >
> >   %SYS-6-BOOT_MESSAGES: Messages above this line are from the boot loader.
> >   Self decompressing the image :
> > #####################################################################################################################################################################################################################################
> > [OK]
> >
> >   *** Illegal Opcode Exception ***
> >   PC = 0x808993a8, Cause = 0x28, Status Reg = 0x34400002
> >
> >   monitor: command "boot" aborted due to exception
> >
> >
> > as soon as the image was loaded.
> >
> > And someone in Cisco told us we were out of luck.  If you can tell us
> > otherwise I'd be very interested.
> >
> >       -- Ed
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-- 
Babak Farrokhi
Web: http://farrokhi.net/