From: Steeneken, Robert (Robert.Steeneken@getronics.com)
Date: Wed Feb 06 2008 - 04:43:29 ARST
If you only use 67xx cards and no classic cards I dont't think you need DFC's on the line cards.
The 67xx cards have a 40Gbps fabric to the sup720. With the DFC's line cards keep local traffic on the card, and can directly send traffic to another linecard without sending it first to the sup.
So you create more bandwidth with the DFC's , the PFC on the sup is only used for the uplinks on the sup itself.
________________________________
Van: nobody@groupstudy.com namens Rookie Ccie
Verzonden: di 5-2-2008 16:53
Aan: ccielab@groupstudy.com
Onderwerp: 6500 - 67xx line cards
Dear Group,
Please let me know whether we need to use DFC-3C cards on 67xx line cards to
get 40Gbps per slot capacity. I went through lot of Cisco doc's but could
not find that it is required (DFC-3C).
Regards
Uchil
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