• Catalyst 6500 series switch (Catalyst 6506 6509 6509-NEB or 6513) or Cisco 7600 series router (Cisco 7606 7609 or 7613)
• Supervisor Engine 720 with MSFC3 running Cisco IOS software on the Supervisor Engine 720 and MSFC3
• 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

The Cisco Catalyst 6500 Series Distributed Forwarding Card 3 (DFC3) 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 offer enhancements to support Multiprotocol Label Switching (MPLS) and Access Control Entries (ACE) counters on the Cisco 6700 Series line cards.

• Support of MPLS and ACE counters
• IPv4 routes: 256KB entries
• NetFlow entries: 128 KB
• ACL labels: 4096 KB

DFC3 Supported Combinations:

• WS-SUP720 PFC3A functionality
• WS-SUP720-3B PFC3B functionality
• WS-SUP720-3BXL PFC3B functionality