I have a switch WS-C3550-24 where the current running IOS image is c3550-i9q3l2-mz.121-11.EA1.bin. I need to upgrade the switch with latest image. since the image version 12.1 is deffered one. Pls suggest which image version and feature can be replaced wiith current image.
IPbase and IPservices are license versions. Ipservices has couple of more L3 features as compared to ipbase like you can have eigrp only as a stub in ipbase but full eigrp enabled on ipservices.
We will have to check what license you have in your switch.
As your IOS is very old and at that time there were no licensing features, so we won't be able to know what license will your switch support.
I'd say go ahead and copy both the ipservices and ipbase to your switch, and try to boot the switch first with the ipservices, and if this doesn't work boot the switch again with ipbase and it should pick it up.
Go for the .tar image if you use GUI of the switch otherwise if you just use CLI go for the .bin fine
You should go ahead with the latest IOS images for both the switches.
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