Re: CatOS/IOS Levels

Cisco website is good place to start. Just read the release notes, the
newest image is always at the top.

I run 8-4-6 on my sup2 and 8-6-6 on sup32; i beleive their even newer
images...

The IOS feature page can also be used to navigate thru the features
including the required memory requirements etc.
http://tools.cisco.com/ITDIT/CFN/Dispatch?act=compare&task=display

--
Uyota.
On Tue, Feb 9, 2010 at 2:55 PM, Dale Shaw <dale.shaw_at_gmail.com> wrote:
> Hi Charles,
>
> On Wed, Feb 10, 2010 at 8:37 AM, Charles T. Alexander
> <charles.t.alexander_at_verizon.net> wrote:
> > Can anyone point me to best practices on keeping a Catalyst Switch 6509
> > up to date. I'm interested in CatOS 6.3(7) IOS 12.1(8b) where I would
> > find [recommendation] on what release one should be at.
>
> "It depends."
>
> Since you're running hybrid, I assume (perhaps incorrectly) that it's
> an older supervisor engine (SUP2?).
>
> The code you can run might be limited by the flash memory and DRAM on
> the SP and RP. I upgraded some 6500s running hybrid recently and was
> only able to go to 12.1(27b) on the RP. I couldn't go to anything
> newer, even after trying to do something tricky like storing RP code
> in SP flash.
>
> In my experience, with 6500s, it's a bit like this:
>
> - Go for the newest code you can
> - Find stable code for your environment (it is feature dependent)
> - Once you've found something stable, stick to it
> - Only upgrade if you need a feature or your device is vulnerable to a
> security flaw
>
> Don't forget to upgrade ROMMON code if you're doing SP/RP code upgrades.
>
> Cheers,
> Dale
> PS: I don't mind CatOS, but if you're doing upgrades, you might
> consider moving to native IOS.
>
>
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