The Cisco Catalyst 4500 Series offers non-blocking Layer2/3/4 switching with integrated resiliency, further enhancing control of converged networks. Converged voice/video/data networks with high availability enable business resiliency for enterprise and metropolitan (metro) Ethernet customers deploying Internet-based business applications. 

A key component of Cisco AVVID (Architecture for Voice, Video and Integrated Data), the Cisco Catalyst 4500 extends control to wiring closets, branch offices and layer 3 distribution points with intelligent network services. These services include sophisticated quality of service (QoS), predictable performance, advanced security, comprehensive management and integrated resiliency. The same intelligence and control enables business services aggregation and subscriber access in the metropolitan area for network operators and service providers.