The Cisco Catalyst 4510R offers nonblocking Layers 2 through 4 switching with integrated resiliency, further enhancing control of converged networks. Converged voice, video, and data networks with high availability enable business resiliency for enterprise and metropolitan (metro) Ethernet customers deploying Internet-based business applications. An important component of Cisco AVVID (Architecture for Voice, Video and Integrated Data), the Cisco Catalyst 4510R extends control to the network edge with intelligent network services, including sophisticated quality of service (QoS), predictable performance, advanced security, comprehensive management, and integrated resiliency. Offering compatibility with Cisco Catalyst 4000 Series line cards and Supervisor Engines, the Cisco Catalyst 4510R provides an extended window of deployment for the Cisco Catalyst 4000 Series in converged networks. This reduces the cost of ownership by minimizing recurring operational expenses, improving return on investment (ROI).