A classic 4500 gives 6gb per slot, a 4500-E can give 24gb per slot with E line cards.
I know in a classic 4500 all switching was central so it was a max of 6gb per slot even with local forwarding between ports on the same line card. Can a 4500-E do local forwarding with E line cards (as like a 6500 can do) or are they still limited to 24gb max even between local ports? Many thanks.
The 4500-E still uses centralized forwarding, it's just improved over the 4500. The line cards cannot do local switching in the way a 6500 line card with DFC can.