The Cisco® Catalyst® 4500 Series offers non-blocking 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, SMB and metropolitan (metro) Ethernet customers deploying Internet-based business applications. The Cisco Catalyst 4500 Series 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 all Cisco Catalyst 4500 Series line cards and Supervisor Engines, the Cisco Catalyst 4500 Series reduces the cost of ownership by minimizing recurring operational expenses, improving return on investment (ROI). Minimize