Cisco Systems® announces distributed forwarding cards with enhanced features for CEF720-based line cards.
The Cisco® Catalyst® 6500 Series Distributed Forwarding Card 3 (DFC3), including WS-F6700-DFC3A (DFC3A), WS-F6700-DFC3B (DFC3B), WS-F6700-DFC3BXL (DFC3BXL), is an optional daughter card for CEF720-based line cards such as WS-X6704-10GE, WS-X6724-SFP, WS-X6748-SFP, and WS-X6748-GE-TX. The DFC3 provides localized forwarding decisions for each line card and scales the aggregate system performance to reach up to 400 mpps. The new DFC3B and DFC3BXL offer enhancements to support Multiprotocol Label Switching (MPLS) and Access Control Entries (ACE) counters on the Cisco 6700 Series line cards. The DFC3BXL also has improved scalability to support one million IPv4 routes and 256-KB NetFlow entries.
Table 1 shows the supported combinations of DFC3.
Table 1. DFC3 Supported Combinations
WS-F6700-DFC3A
WS-F6700-DFC3B
WS-F6700-DFC3BXL
WS-SUP720
PFC3A functionality
PFC3A functionality
PFC3A functionality
WS-SUP720-3B
PFC3A functionality
PFC3B functionality
PFC3B functionality
WS-SUP720-3BXL
PFC3A functionality
PFC3B functionality
PFC3BXL functionality
Announcement Summary
Introduction of WS-F6700-DFC3B and WS-F6700-DFC3BXL.
New Hardware
• WS-F6700-DFC3B
• WS-F6700-DFC3BXL
DFC3B and DFC3BXL Specifications
• Support all features that WS-F6700-DFC3A currently supports
• Support of MPLS and ACE counters
• DFC3BXL supports one million routes
• Deployed in CEF720 line cards such as WS-X6704-10GE, WS-X6724-SFP, WS-X6748-SFP, and WS-X6748-GE-TX
• Not supported on Cisco 6500 or 6800 series line cards
DFC3 Highlights
Table 2 shows features of the DFC3A, DFC3B, and DFC3BXL.
Table 2. Features of the DFC3A, DFC3B, and DFC3BXL
DFC3A
DFC3B
DFC3BXL
Default memory
256 MB on interface module
256 MB on interface module
1 GB on interface module
MPLS support
No
Yes
Yes
ACL labels
512 KB
4096 KB*
4096 KB*
ACE counters
No
Yes
Yes
IPv4 routes
256 KB entries
256 KB entries
1 million entries
NetFlow entries
128 KB
128 KB
256 KB*
* Check software release notes
Product Numbers
Table 3 shows part numbers and descriptions for the DFC3B and DFC3BXL.
Table 3. DFC3B and DFC3BXL Part Numbers and Descriptions
Cisco Product Part Number
Description
WS-F6700-DFC3B
Distributed forwarding card for 6700 Series line cards with 256 MB DRAM as default
WS-F6700-DFC3BXL
Distributed forwarding card for 6700 Series line cards with 1 GB DRAM as default
FCS Schedule and Lead Time
• Available for order: August 18, 2004
• FCS: August 23, 2004
• Lead Time: 4 weeks
Minimum Software Requirements
Table 4 shows the Cisco IOS® Software minimum requirements for the DFC3B and DFC3BXL.
