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VS--S720-10G-3CXL AND 6700 SERIES CARDS

Hi,
 
I have a customer that wants to install the above Supervisor along with a 6724-sfp. The 6724 does not have the WS-F6700-DFC3CXL on it. My question is in order for him to utilize the fullest potential in the Supervisor, shouldnt he also run the WS-F6700-DFC3CXL on all 6700 series cards? Any help would be appreciated.

Thanks,
Matt
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Top Expert 2010

Commented:
>My question is in order for him to utilize the fullest potential in the Supervisor, shouldnt he also run the >WS-F6700-DFC3CXL on all 6700 series cards?

Yes, when the Distributed Forwarding Card-3 is installed, modules that are DFC-enabled make forwarding decisions locally, leaving the supervisor engine free to perform routing and management functions.

The Distributed Forwarding Card-3 replicates Layer 2 and 3 forwarding logic of the Supervisor 720's PFC-3 on each DFC-3 equipped linecard. This enables hardware acceleration of IPv6, MPLS, GRE, QoS, ACL policy enforcement and more.

Billy

Author

Commented:
Thanks Billy,
If he's only running with WS-F6700-CFCs then isn't it a waste to use the sup720-3CXL? My understanding is that the Supervisor will only perform to the level the 6700 series cards are upgraded to. Is this correct?

Thanks,
Matt
Top Expert 2010
Commented:
that is correct, here is some information that you may or may have not seen:

http://www.cisco.com/en/US/products/hw/switches/ps708/products_qanda_item09186a00809a7673.shtml

Billy