The Cisco Catalyst® 4000 Family Supervisor Engine IV integrates nonblocking Layer 2, Layer 3, and Layer 4 switching with integrated resiliency, further enhancing control of converged networks. Converged data, voice, and video networks with high availability enable business resiliency for enterprise and metropolitan (metro) Ethernet customers deploying Internet-based business applications. As a key component of Cisco AVVID (Architecture for Voice, Video and Integrated Data), the Cisco Catalyst 4000 Family extends control from the backbone to the network edge with intelligent network services, including sophisticated quality of service (QoS), predictable performance, advanced security, comprehensive management, and integrated resiliency with the Supervisor Engine IV. The modular architecture, media flexibility, and expandability of the Cisco Catalyst 4000 Family enable an extended window of deployment in converged networks. This reduces the total cost of ownership by minimizing recurring operational expenses, thus improving return on investment (ROI).
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