clarson wrote: » no the 2950's cant run ios version 15. But, it would still be nice to put on the latest version you can. the 3560 is a layer 3 switch. get all of them that you can. the 3560 can run ios version 15 if it is a "ts" model. "ps"/poe models cant run version 15 of the ios. need just 2 for the ccna and 4 for the ccnp