I just bought a Catalyst 5505 for layer 3 switching and the thing runs CatOS. The RSM module I also bought runs IOS however, so I'm good in that regard. I'm curious to know though, how worthwhile it is to learn CatOS. Are there many routers still in the field that run CatOS? According to various sources CatOS is still used on some flagship switching platforms (like the 6509 for example). It can't hurt me to learn CatOS but will it help me any?
Thanks guys