[c-nsp] upgrading stack of 3750E's

[Tony Varriale]

Just to clarify...the first switch was upgraded to 46 and reloaded first? 
I'm confused on your steps for 2 switches and the process...

tv
----- Original Message ----- 
From: "Holemans Wim" <wim.holemans at ua.ac.be>
To: "Peter Rathlev" <peter at rathlev.dk>; "Tony Varriale" 
<tvarriale at comcast.net>
Cc: <cisco-nsp at puck.nether.net>
Sent: Tuesday, January 27, 2009 12:38 PM
Subject: RE: [c-nsp] upgrading stack of 3750E's


(I'm the one who posted the original question).
Just tested it again with a second stack of 3750E's ; this gave the same
result :
Upgrading from 12.2.2(35) to 12.2.(46) and reload of second switch gave
a Version Mismatch with left the second switch hanging. Only a reload of
the master restored full functionality.
After that, I replaced the ip base image with the one with encryption
(k9 version), however same versionnumber 12.2(46). This went as
described below, second one came back online and became again member of
the stack without problem allowing reload of first one.

So my conclusion is that the possibility to upgrade a stack without
losing full connectivity is different for each upgrade and you can't
tell in advance if it will result in a version mismatch or not.

Feel free to comment if you have different experiences.

Wim Holemans

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Peter Rathlev
Sent: maandag 26 januari 2009 19:38
To: Tony Varriale
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] upgrading stack of 3750E's

On Mon, 2009-01-26 at 08:45 -0600, Tony Varriale wrote:
> This is how I normally do it.
>
> 1) archive software to first switch /overwrite (from TFTP) without
reload.
> 2) archive software to second switch /overwrite without reload.
> 3) reload slot 1
> 4) wait until switch 1 is operational and you are happy
> 5) reload slot 2

Will this work? Wouldn't Stackwise see the two switches as incompatible?
We've started using pairs of 3750E with a CX4 link between them and just
plain rapid PVST+. Then we have some "guarantees" as to how the system
functions during upgrades.

Regards,
Peter


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