From: Joe Harris, CCIE# 6200 (jfh6200@tx.rr.com)
Date: Wed Feb 06 2008 - 03:12:27 ARST
Uchil,
A DFC is not required in order to get 40Gbps per slot, in fact the DFC has
no bearing on the bandwidth per slot ... using the DFC will move your system
to a distributed forwarding architecture and allow the system to forward 48
million pps per slot...each slot on the 6500-E chassis using a
CEF720/dCEF720 card has 2x20Gbps full-duplex interconnections to the fabric
currently however the E series chassis are designed to support up to 80Gb
per slot (compared to 40Gb per slot with the non E series chassis). The
ability to support 80Gb per slot will become a reality with the introduction
of future Supervisors and Switch fabric technologies.. So it's a function of
the chassis and the linecard per se, not a function of the DFC.
Joe H.
CCIE# 6200
6200networks.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Rookie Ccie
Sent: Tuesday, February 05, 2008 9:53 AM
To: ccielab@groupstudy.com
Subject: 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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