The CISCO WS-SUP720-3B, part of the Cisco Catalyst 6500 series, is a Supervisor Engine 720 with a multilayer switch feature card (MSFC3) and a Policy Feature Card 3B (PFC3B). This integrated module combines powerful Layer 2-4 switching capabilities with advanced routing, security, and management features. It is designed to provide high-performance, intelligent network services with redundancy for enhanced reliability. The Supervisor Engine 720 supports a wide range of interfaces and is capable of delivering up to 400 million packets per second (mpps) of throughput, making it suited for enterprise core networks, data centers, and service provider networks. It features 3BXL options for extended memory, supporting more extensive routing tables and enhancing scalability for large, complex networks. The WS-SUP720-3B is an essential component for networks demanding high availability, scalability, and a broad suite of integrated services.