for linecards with a DFC submodule the DFC model must be the same as that of the main cpu for example you need DFC 3B if you have SUP 720 3B.

Giuseppe,

I'm afraid I have to disagree on this one.

Let's take the 6708-10GE data sheet for example:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/product_data_sheet09186a00801dce34_ps4835_Products_Data_Sheet.html

Supervisor Engines Supported:

Virtual Switching Supervisor Engine 720-10G or Supervisor Engine 720 with any PFC (chassis will work in lowest common denominator mode)

I go with Jerry on this one. The answer depends on each module in question. Best to hit cisco.com and verify the module's data sheet for hardware support.

__

Edison.

Hello Edison,

thanks for your correction.

the sentence should be rewritten as:

for optimal performance the DFC submodule should match the PFC type.

Actually I have this linecard installed on several chassis with 720 3B and it provides a warning that its DFC 3C is more advanced then the PFC but it will work at the current system performance.

However, on sup 720 chassis DFC less then DFC3 are not accepted we had a case recently in production network and also a thread in the forum I think.

Best Regards

Giuseppe

Edison,

I need your advise on something i am doing. How can i conact you?

Thanks.

Francisco.