[c-nsp] Cisco 7201 -- Differences between the 12."2" images and the usual 12.4/15 images?

[Nick Hilliard]

On 08/03/2010 15:32, P C wrote:
> Can anyone explain to me the purpose of the 12.2 images I see on CCO for
> this device?  These images seem to have a different naming and numbering
> scheme than that 12.4/15 images.  Normally, if this was any ISR I would just
> use 12.4T15(latest) as these seem to be the best combination of stability
> and necessary features, but I can't find any clear documentation on what the
> 12.2s are for.

12.2S is the service provider train.

http://en.wikipedia.org/wiki/Cisco_IOS#Trains

So, you might have all sorts of enterprisey stuff like telephony and SNA
and IPX and that sort of pizazz in the regular ISR trains.  However, the S
image will have much more advanced support for stuff like mpls or bfd or
better ipv6 support or the sort of things that you'll need if you're a
service provider.

Nick