i understand that when some slots in a 65xx chassis are populated with cards the performance comes down to 15 Mpps in spite of having a SFM. where can i get a document on this.
This performance difference you are talking about is the difference of fabric enabled/fabric-only or non-fabric enabled linecards (legacy) and the higher pps rates do require the SFM which provides the Crossbar function to the fabirc enabled line cards. Here is a very good link to help you out with this information gathering: