[c-nsp] Recommend IOS for 7200?

[Pelle]

Hi.

> For a general dogsbody (LNS, BGP, OSPF) SP router, what is the current
> recommended IOS version for stability?

We are running 12.2(31)SB10 with success (on NPE-400), though with
IS-IS instead of OSPF.

> I am looking to upgrade a couple
> of ancient NPE-225 routers to a current IOS. Should it be 12.2(25)S15?

12.2S is "End of software maintanence" since 12/12/2007, see:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1838/prod_eol_notice0900aecd804be5cf.html.
The recommended migration paths is 12.2SB or 12.4T.

-- 
Pelle