Difference between the WS-X6748-GE-TX and WS-X6748-SFP

Question: What are the architectural differences between the WS-X6748-GE-TX, WS-X6748-SPF and the WS-X6724-SPF (ports per ASICs, buffers Tx-Rx, fabric connections, etc.)? Also, if someone has information about the oversubscription rate of the cards it would be great.

Answer:  All modules need the Supervisor 720 although i guess you know that !.

The 6748 modules have dual 20Gbps connections to the switch fabric.

The 6724 has one 20Gbps connection to switch fabric.

So for the 48 ports blades they can run 48 x 1Gbps ports with a 40Gbps connection to the switch fabric.

The 24 port blade you can run 24 x 1Gb with a 20Gbps connection to the switch fabric.

So you do get oversubscription but nowhere near as bad as some of the other modules.

As for the buffers etc. rather than just cut and paste from the docs attached is a link for all the modules for the 6500. If you click on the relevant links you can get the stats from there.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_relevant_interfaces_and_modules.html

The similar cisco module you maybe interested, please click the below links:

WS-X4712-SFP+E

WS-X4548-RJ45V+