[c-nsp] Software forced crash on 2651XM/12.3(6e)

sthaug at nethelp.no sthaug at nethelp.no
Wed Sep 27 15:26:22 EDT 2006


> I've ALWAYS said: don't run an IOS image with a low "third digit" unless 
> you have no other choice.  If 12.4(10) is already out, why should anyone 
> be running with a less-mature version of 12.3?  I can understand that 
> you can't do code upgrades on a whim, but if 12.3(20) and 12.2(37) are 
> out, why would someone be running 12.3(6) when they could at least be on 
> 12.3(10) (theoretically as mature as 12.4(10), yet out for a WHILE).

Because newer releases sometimes break things that work in older
releases? Happened to us several times with 12.0S - most recently an
attempted upgrade of a 7500 that had to be rolled back because all our
E3 interfaces failed with the version.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no


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