2960s switch - Can I go from Version 12.2(55)SE to 15.2(2)E9?

[cnsinstall]

Need help:-

2960s switch - Can I go from Version 12.2(55)SE to 15.2(2)E9?

[Martin L]

Yes, it seems that all models of c2960 can support at least IOS 15.0 

15.2.x is for X model. that is what you have, right?

since there are several models, make sure you choose correct one - difference in size of RAM and flash storage. 

go to  https://software.cisco.com/download/home/279935165?catid=268438038

Regards, ML
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[cnsinstall]

Thank a lot Martin for quick reply. I have various models of 2960 including 2960x.

The release I am trying to go from 12.2 to 15.x.

Re

[Martin L]

well, it seems that u can get IOS for older as well as newer X models. Just make sure u upgrade switch model with appropriate IOS version as older models seemed to stop at 15.0 whereas IOS 15.2 is the latest for newer ones.

[Leo Laohoo]

You can go direct.
Note: There is a possibility of an automatic ROMMON/bootstrap upgrade and this can take up to 20 minutes.

[network1215]

Thanks for precise answer. 

We have a basic SVI configured with default gateway, also ISE authentication is enabled on some of the ports(Mab commands). is there any configuration change ? 

Also you mentioned Rommon upgrade, do I have to use same .bin file or .tar file ?

[Leo Laohoo]

No changes necessary.
If you want to get the upgrade done right, use the TAR file. To push the firmware to the switch:

archive download-sw tftp://TFTP_IP_ADDRESS/IOS_filename.tar