Cisco WS-SUP720-3B Fabric Module
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WS-SUP720-3B Cisco Supervisor Engine Fabric Module Catalyst Refurbished

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Part Number#: WS-SUP720-3B
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Short Description:
WS-SUP720-3B Catalyst 6500/7600 1 x SFP (Mini-GBIC) Twisted Pair 10/100/1000Base-T MSFC3 PFC3B 2 x Gigabit Ethernet Uplink Supervisor Engine Fabric Module | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Understanding the WS-SUP720-3B Supervisor Engine for Catalyst 6500/7600 Series

The WS-SUP720-3B is a powerful Supervisor Engine designed for the Catalyst 6500/7600 series switches, providing enhanced performance and capabilities. In this detailed explanation, we will delve into the key features and specifications of the gigabits ethernet WS-SUP720-3B, focusing on its compatibility, physical attributes, and functionalities.

Overview of WS-SUP720-3B Cisco Supervisor Engine Fabric Module
  • The WS-SUP720-3B is a Supervisor Engine module that serves as the brain of the Catalyst 6500/7600 series switches. It is a crucial component responsible for managing and controlling the overall operation of the switch, offering advanced features to meet the demands of modern network environments.
Compatibility and Integration
  • The WS-SUP720-3B is specifically designed for integration with Catalyst 6500 and 7600 series switches. Its compatibility ensures seamless integration into existing network infrastructures, making it an ideal choice for organizations looking to upgrade their network capabilities without a complete overhaul.
Use Cases and Benefits of Catalyst C6500/7600 Fabric Module

Understanding the features of the WS-SUP720-3B Catalyst 6500/7600 module leads to a deeper appreciation of its applications and benefits in real-world scenarios.

Enterprise Networks

In large enterprise networks, the WS-SUP720-3B plays a pivotal role in providing high-performance routing and switching capabilities. The combination of the MSFC3 and PFC3B allows for the implementation of complex routing protocols and security policies, catering to the diverse needs of modern enterprises.

Data Centers

Data centers demand robust and scalable networking solutions. The WS-SUP720-3B, with its Gigabit Ethernet uplink ports and advanced features, serves as a reliable backbone for data center networks. The Supervisor Engine ensures efficient management of data traffic, while the Fabric Module contributes to seamless communication between different modules in the data center infrastructure.

Service Provider Networks

In service provider environments, where reliability and performance are paramount, the WS-SUP720-3B excels. Its ability to handle high data volumes, coupled with advanced routing capabilities, makes it suitable for service providers offering critical connectivity services.

Educational Institutions

Educational institutions often require network infrastructure that can handle a multitude of devices and varying traffic patterns. The WS-SUP720-3B, with its comprehensive feature set, proves beneficial in educational settings by providing a stable and secure network foundation.

Physical Attributes
  • Form Factor: The WS-SUP720-3B comes in a compact form factor suitable for easy installation within the chassis of Catalyst 6500/7600 switches. Its design allows for efficient use of space while delivering high-performance networking.
  • Ports: This Supervisor Engine features 1 x SFP (Mini-GBIC) port for versatile connectivity options, supporting a range of optical interfaces. Additionally, it includes Twisted Pair 10/100/1000Base-T ports for flexible deployment in various networking scenarios.
  • MSFC3 and PFC3B: The WS-SUP720-3B incorporates Multilayer Switch Feature Card 3 (MSFC3) and Policy Feature Card 3B (PFC3B), enhancing the switch's routing and policy enforcement capabilities. This combination empowers the Supervisor Engine to handle complex routing tasks and enforce policies efficiently.
  • Gigabit Ethernet Uplink: Equipped with 2 x Gigabit Ethernet uplink ports, the WS-SUP720-3B ensures high-speed connectivity for interconnecting switches and backbone networks. These ports support Gigabit speeds, facilitating rapid data transfer and minimizing bottlenecks in the network.
  • Supervisor Engine Fabric Module: The inclusion of a Supervisor Engine Fabric Module further enhances the switch's performance by providing a high-speed fabric connection. This module facilitates efficient communication between the Supervisor Engine and other modules within the switch, ensuring seamless data flow.
Key Features and Functionalities of Gigabit Ethernet Uplink Supervisor Engine
  • High-Speed Data Transfer: The WS-SUP720-3B supports Gigabit Ethernet speeds, enabling the rapid transfer of data within the network. This is essential for handling large volumes of data in modern enterprise environments.
  • Advanced Routing Capabilities: With the MSFC3, the Supervisor Engine excels in routing tasks, supporting complex routing protocols. This is crucial for managing diverse network architectures and ensuring optimal routing efficiency.
  • Policy Enforcement: The PFC3B enhances the switch's ability to enforce policies, providing granular control over network traffic. This is vital for maintaining security and quality of service (QoS) in the network.
  • Scalability: The WS-SUP720-3B is designed to scale with the growing needs of a network. Its modular architecture allows for future expansion, making it a cost-effective solution for organizations planning for scalability.
  • Reliability and Redundancy: Built with reliability in mind, the WS-SUP720-3B includes features such as hardware redundancy and hot-swappable components. These ensure uninterrupted network operation and minimize downtime in the event of a hardware failure.
Performance and Scalability

The WS-SUP720-3B Cisco Catalyst C6500/7600 Supervisor Engine Fabric Module provides high performance and scalability for network deployments. Some key features include:

  • High-speed switching and routing: The WS-SUP720-3B supports high-speed switching and routing, allowing for efficient data transfer and reducing network latency.
  • Increased scalability: The WS-SUP720-3B can support up to 10Gbps per slot, allowing for the addition of more interfaces as the network grows.
  • Improved reliability: The WS-SUP720-3B provides redundant supervisor engines, power supplies, and fan trays to ensure continuous network operation in case of component failure.
  • Advanced features: The WS-SUP720-3B supports advanced features such as Quality of Service (QoS), Network Address Translation (NAT), and Access Control Lists (ACLs) to provide a high level of network control and security.
  • Multiple protocols support: The WS-SUP720-3B supports multiple protocols such as IPv4, IPv6, and MPLS, providing flexibility and compatibility with different network deployments.

In general, the WS-SUP720-3B offers a scalable and high-performance solution for networks, allowing for efficient data transfer and increased reliability. It's important to properly size and configure the supervisor engine and fabric module to meet the specific requirements of the network deployment.

1 x SFP (Mini-GBIC) Twisted Pair

The inclusion of 1 x SFP (Mini-GBIC) Twisted Pair signifies the module's compatibility with Small Form-factor plugable transceivers. These transceivers allow for flexibility in connecting the module to various network media using twisted pair cables.


The 10/100/1000Base-T specification indicates the module's support for Gigabit Ethernet, accommodating data transmission speeds of 10, 100, and 1000 megabits per second. This versatility is essential for adapting to different network requirements.

MSFC3 (Multilayer Switch Feature Card 3)

The MSFC3, or Multilayer Switch Feature Card 3, is a critical component integrated into the WS-SUP720-3B. This card enhances the module's capabilities by providing advanced routing and multilayer switching functionalities. It plays a pivotal role in optimizing network performance.

General Information for the Cisco WS-SUP720-3B Supervisor Engine
  • Manufacturer: Cisco
  • Model Number or SKU# WS-SUP720-3B
  • Product Name: 10/100/1000Base-T Supervisor Engine
  • Product Type: Fabric Module
Technical Information of Fabric Module
  • Application/Usage: Data Networking
  • Expansion Slots: 1 x SFP (Mini-GBIC)
  • Expansion Slots: 2 x Compact Flash Card Slot
Interfaces / Ports for Control Processor Module
  • Interfaces/Ports: 1 x 10/100/1000Base-T LAN
  • Interfaces/Ports Details: 1 x RJ-45 10/100/1000Base-T LAN
  • Interfaces/Ports Details: 1 x RJ-45 RS-232 Management
Performance of Management Module
  • Connectivity Media: Twisted Pair 10/100/1000Base-T
  • Data Transfer Rate: 10 Mbps Ethernet
  • Data Transfer Rate: 100 Mbps Fast Ethernet
  • Data Transfer Rate: 1 Gbps Gigabit Ethernet
Management & Protocols
  • Management- IEEE 802.1q VLAN


  • Compatibility-
  • Cisco 7600 Optical Services Router
  • Cisco Catalyst 6500

Finally, the WS-SUP720-3B Supervisor Engine for Catalyst 6500/7600 series switches stands as a robust solution for organizations seeking enhanced networking capabilities. Its compatibility, physical attributes, key features, and diverse applications make it a versatile choice for a wide range of network environments. As technology continues to advance, the WS-SUP720-3B provides a future-proof foundation for building and expanding resilient and high-performance networks.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.


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30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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