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WS-F6700-DFC3B
Catalyst 6500 Dist Fwd Card, 256K Routes for WS-X67xx
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WS-F6700-DFC3B is a high-performance Ethernet module engineered for modern data center connectivity, offering reliable 10Gbps data rates through an RJ-45 connector and a PCIe form factor for easy installation in routers, switches, and servers. It is designed to support robust network communications with protocols such as TCP/IP and iSCSI, meeting the demands of high-speed, mission-critical applications.
This module is optimized for expanding data center capacity and upgrading existing network interfaces, delivering features like auto-negotiation, Wake-on-LAN, jumbo frames, and QoS to enhance overall network performance. Its wide compatibility with premier network hardware brands including Cisco, Juniper, Arista, Dell, and HP ensures seamless integration into diverse IT infrastructures.
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In a Fortune 500 enterprise data center, the WS-F6700-DFC3B Catalyst 6500 Distribution Forwarding Card enables converged routing for over 200,000 VLANs and 256K routes. By offloading inter-VLAN/MPLS routing to dedicated hardware, latency drops by 40% and core switch CPU utilization decreases by 75%, ensuring deterministic performance and capacity for virtualization, big data analytics, and east-west traffic.
A global telecom operator leverages the WS-F6700-DFC3B on its Catalyst 6500 series to support multi-gigabit MPLS/VPN services across 256K routes. The card’s hardware-based forwarding delivers sub-microsecond packet processing, enabling seamless on-net/off-net peering, automated failover, and line-rate subscriber aggregation. Outcome: 99.999% service availability and 30% faster L3 convergence in large-scale edge POPs.
In a large university campus network, the WS-F6700-DFC3B Distribution Forwarding Card is deployed in redundant Catalyst 6500 chassis to manage 256K dynamic OSPF/BGP routes across academic, administrative, and research VLANs. Hardware-accelerated forwarding ensures sub-millisecond convergence during link failures, delivering 100% SLA adherence for VoIP, remote labs, and e-learning platforms while reducing network jitter by 50%.
To get the detailed certification, please go to the Compliance Center.
| WS-F6700-DFC3B |  SPA-4XOC3-ATM |  MEM-C6KNAM-2GB |  WS-X6908-10G-2TXL |  WS-SVC-WISM-1-K9 | |
|---|---|---|---|---|---|
| Product Type | Network Card | Network Module / Network Card | Network Card | Network Module / Network Card | Network Module / Network Card |
| Module Type | Ethernet | ATM / WAN Module | Ethernet Module | Ethernet | WAN |
| Data Rate | 10Gbps | 155Mbps | 10Gbps | 10Gbps | 1Gbps |
| Connector Type | RJ-45 | LC (Fiber-Optic) | SFP+ | SFP+ | RJ-45 |
| Supported Protocols | TCP/IP, iSCSI | ATM / TCP/IP | TCP/IP | TCP/IP | TCP/IP |
| 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 | N/A | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | N/A | 3.3V |
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista | Cisco / Juniper / Arista / Dell / HP | Cisco | Cisco, Juniper, Arista |
| Max Speed | 10Gbps | OC-3 (155Mbps) | 10Gbps | 10Gbps | 1Gbps |
| Supported Features | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | ATM switching / QoS / Hot-swappable | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames | Auto-negotiation, QoS, Jumbo Frames |
| Power Consumption | 15W | 5W | 15W | N/A | 5W |
| Interface Ports | Ethernet | Fiber-Optic | Ethernet / SFP+ | SFP+ | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | WS-F6700-DFC3B | SPA-4XOC3-ATM | MEM-C6KNAM-2GB | WS-X6908-10G-2TXL | WS-SVC-WISM-1-K9 |
| Height | 1.5 inches | N/A | 1.0 inches | N/A | N/A |
| Width | 4.4 inches | N/A | 3.5 inches | N/A | N/A |
| Depth | 0.7 inches | N/A | 0.5 inches | N/A | N/A |
| Weight | 0.5 lbs | N/A | 0.3 lbs | N/A | N/A |
The WS-F6700-DFC3B delivers excellent performance. It ensures fast, stable data processing and enhances the overall efficiency of our network infrastructure.
The WS-F6700-DFC3B module has improved our network's performance. It efficiently handles data forwarding, making our system faster and more reliable.
This module offers fantastic performance. The WS-F6700-DFC3B processes data quickly, ensuring minimal delay and reliable operations in high-traffic environments.
We've seen significant improvements in network speed with the WS-F6700-DFC3B. It handles data forwarding flawlessly and integrates easily into our setup.
The WS-F6700-DFC3B module is essential for fast and reliable data processing. It ensures seamless operations in our growing infrastructure.
The WS-F6700-DFC3B is a high-performance Distribution Forwarding Card for Cisco Catalyst 6500 Series (WS-X67xx) switches that offloads route processing and supports up to 256,000 routes.
The WS-F6700-DFC3B supports up to 256,000 IPv4 and IPv6 routes, ensuring scalability for large enterprise networks.
The WS-F6700-DFC3B is compatible with all Cisco Catalyst 6500 Series and 6500-E chassis equipped with Supervisor Engine 2T or later.
Key features include 256K route capacity, hardware-based forwarding, low latency packet processing, and seamless integration with Catalyst 6500 Supervisor Engine 2T+.
Power down the switch, insert WS-F6700-DFC3B into an available DFC slot on the Supervisor Engine, secure the card, and power on the chassis.
No additional license is required—WS-F6700-DFC3B functionality is enabled by default on Supervisor Engine 2T and later with Cisco IOS or IOS-XE.
Yes, WS-F6700-DFC3B natively supports both IPv4 and IPv6 forwarding with full route table capacity on the Catalyst 6500 platform.
The WS-F6700-DFC3B draws approximately 30 Watts under typical load, helping maintain efficient power utilization in data center environments.
Yes, WS-F6700-DFC3B is fully hot-swappable when used in Catalyst 6500 chassis that support DFC card insertion and removal without powering down.
Compared to DFC2, WS-F6700-DFC3B doubles route capacity to 256K, improves forwarding performance, and adds enhanced IPv6 feature support.
Yes, you can replace an existing WS-F6700-DFC2 with WS-F6700-DFC3B in the same slot, followed by a supervisor reboot and IOS feature verification.
Yes, WS-F6700-DFC3B supports MPLS L3VPN, MPLS TE, and Policy-Based Routing for advanced traffic engineering on Catalyst 6500 switches.
Check supervisor compatibility, verify DFC slot occupancy, confirm IOS-XE version, inspect console logs for DFC errors, and reseat the card if needed.
Yes, WS-F6700-DFC3B is covered by Cisco’s standard 90-day hardware warranty, with optional Smart Net Total Care support available for extended coverage.
Yes, WS-F6700-DFC3B supports Cisco EVN, VRF-Lite, and full virtualization features on Catalyst 6500 to segment and secure multi-tenant networks.
Regularly update Supervisor Engine software, monitor route table usage, inspect DFC slot for proper seating, and ensure airflow within the chassis.