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c3750 ios upgrade 12.1(14)EA1a to 12.2(25)SEE1

Hi All,

I am about to perform a IOS upgrade on a stack of 3750's. Currently the boot loader is Version 12.1(11r)AX. With this IOS upgrade I know the boot loader gets upgraded.

Should I perform this IOS upgrade in stages, i.e go to something a little later before going to the latest?

I plan to use Cisco Network Assistant to do the upgrade. If people advise against I am happy to do via traditional tftp.

Any tips or tricks people recommend when doing this upgrade.

Thanks Kindly.

Cisco Employee

Re: c3750 ios upgrade 12.1(14)EA1a to 12.2(25)SEE1

You can upgrade directly to SEE1. I have always used CLI to upgrade and hence would recommend CLI. Since you have a stack, follow the steps in the following tech tip

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