I just went through the Networkers slides for the catalyst 3750 and 3750E. I'm looking for information on the amount of packet memory that is available to help with speed conversion when traffic enters the switch on a 10 Gig port and exits on a lower speed port. I can find a lot of information on the percentage allocations but nothing that tells me how much memory there is. It looks like each port ASIC manages its own output buffers and that however much there is gets shared amoung all the ports common to each port ASIC. But, how do I find out how much there is? It would also be good to know if it is managed as particles -- each packet gets what it needs -- or if it is preallocated into MTU sized chunks.
This question is much easier for the Catalyst 6500 than for the shared memory access switches.
UC Santa Cruz