Please can you give me points on why CiscoIOS is a much better OS than CatOS. Also if you could give me links to supporting documents.
Its mostly because it is EOL and they are no longer developing it and you have to deal with 2 OS's when using both layer 2 and 3 . Catos was the layer 2 side . I actually found it much faster to do things over multiple ports on catos on the layer 2 side. It you understood it it was a breeze. This was an aquired OS when cisco bought Kalpanna back in 1994 and was a staple until like 2-3 years ago . I would guess it will be totally gone even on the 6500's within 2 years.