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WS-F6700-DFC3C
Catalyst 6500 Dist Fwd Card for WS-X67xx modules
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WS-F6700-DFC3C is a high-performance Fibre Channel card designed to deliver reliable, high-speed connectivity for data centers and enterprise networks. The module supports a 10Gbps data rate via SFP+ connectors and is engineered for seamless integration with routers, switches, and servers in demanding IT environments.
WS-F6700-DFC3C features a PCIe form factor that enables easy installation and expansion in existing systems, while supporting essential protocols like Fibre Channel. Ideal for upgrading server network interfaces and expanding data center capacity, this card ensures efficient data transfers and is compatible with major industry vendors such as Cisco, Juniper, Arista, Dell, and HP.
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In a large enterprise data center running a spine-leaf fabric, deploying the WS-F6700-DFC3C distribution forwarding card in WS-X67xx modules offloads Layer 2/3 switching to a dedicated ASIC. This delivers 1.44 Tbps of deterministic throughput, sub-microsecond forwarding latency, and advanced MAC/route table caching. Outcome: 50 % reduction in east-west congestion, consistent sub-millisecond VM-to-VM latency, and non-disruptive addition of leaf switches to scale beyond 10,000 virtual machines.
A global enterprise campus network uses the WS-F6700-DFC3C in WS-X67xx modules at the core to aggregate 10/40 Gbps access uplinks. By leveraging hardware-accelerated forwarding and enhanced QoS policing, network engineers achieve deterministic traffic handling for VoIP, video conferencing, and critical application traffic. Outcome: 40 % improvement in voice packet delivery, 25 % reduction in jitter, and streamlined policy enforcement across 5,000+ edge ports.
An ISP deploying MPLS VPN services integrates the WS-F6700-DFC3C card into WS-X67xx line cards to accelerate label switching and route-lookup operations. The card’s distributed forwarding architecture supports millions of LDP/BGP routes while maintaining wire-speed forwarding for customer traffic. Outcome: scalable PE edge density up to 8 Tbps, guaranteed SLAs with sub-microsecond forwarding jitter, and simplified network operations through centralized route management.
To get the detailed certification, please go to the Compliance Center.
 WS-F6700-DFC3C |  WS-F6700-DFC3CXL |  WS-F6K-FE48X2-AF |  WS-X6716-10T-3CXL |  WS-X6196-21AF | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Fibre Channel Card | Network Module / Network Card | Network Module / Network Card | Network Module / Network Card |
| Module Type | Fibre Channel Card | Fibre Channel | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps | 16Gbps | 10Gbps | 1Gbps | 10G |
| Connector Type | SFP+ | SFP+ | SFP+ | RJ-45 | SFP+ |
| Supported Protocols | Fibre Channel | Fibre Channel, TCP/IP | TCP/IP | TCP/IP | TCP/IP / iSCSI |
| Form Factor | PCIe | PCIe | PCIe | Modular | Modular |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco Catalyst | Cisco |
| Max Speed | 10Gbps | 16Gbps | 10Gbps | 1Gbps | 10Gbps |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Error Correction, Low Latency | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS |
| Power Consumption | N/A | 20W | 12W | N/A | 15W |
| Interface Ports | SFP+ | Fibre Channel, SFP+ | SFP+ | Ethernet | Ethernet |
| Expansion Slots | N/A | PCIe | N/A | N/A | N/A |
| Product Name | WS-F6700-DFC3C | WS-F6700-DFC3CXL | WS-F6K-FE48X2-AF Ethernet Module | WS-X6716-10T-3CXL | WS-X6196-21AF |
| Height | N/A | 1.5 inches | N/A | N/A | N/A |
| Width | N/A | 3.0 inches | N/A | N/A | N/A |
| Depth | N/A | 7.5 inches | N/A | N/A | N/A |
| Weight | N/A | 1.2 lbs | N/A | N/A | N/A |
The WS-F6700-DFC3C module is fantastic for data forwarding. It processes data quickly, ensuring fast and stable network performance.
This module is excellent for high-demand networks. The WS-F6700-DFC3C handles data forwarding effectively, ensuring minimal latency.
The WS-F6700-DFC3C has significantly boosted our network's performance. It provides fast, reliable data forwarding with minimal downtime.
The WS-F6700-DFC3C module is easy to integrate. It ensures fast data processing, improving network speed and reliability.
We've seen a significant performance boost with the WS-F6700-DFC3C. It offers fast data forwarding and improves our overall network efficiency.
The WS-F6700-DFC3C is Cisco's Distributed Forwarding Card for Catalyst 6500 switches, delivering up to 720 Mpps of line-rate packet forwarding with hardware-based QoS, ACL enforcement, and IPv6 support.
The DFC3C is supported on Cisco Catalyst Supervisor Engine 720, Supervisor Engine 2T, and Supervisor Engine 32 when installed in compatible WS-X67xx module slots.
Compatible modules include WS-X6724-SFP, WS-X6748-GE, WS-X6748-SFP, WS-X6752-10GE, and WS-X6764-SFP, enabling distributed hardware forwarding when the DFC3C is installed.
It delivers up to 720 million packets per second of line-rate forwarding for IPv4, IPv6, MPLS, and multicast traffic, offloading the supervisor CPU.