The Cisco Catalyst 3550 Intelligent Ethernet Switch is a enterprise-class, stackable, multilayer switch that provides high availability, scalability, security and control to enhance the operation of the network. With a range of Fast Ethernet and Gigabit Ethernet configurations, the Catalyst 3550 can serve as both a powerful access layer switch for medium enterprise wiring closets and as a backbone switch for mid-sized networks. For the first time, customers can deploy network-wide intelligent services, such as advanced quality of service (QoS), rate-limiting, Cisco security access control lists, multicast management, and high-performance IP routing—while maintaining the simplicity of traditional LAN switching. Embedded in the Catalyst 3550 Series is the Cisco Cluster Management Suite (CMS) Software, which allows users to simultaneously configure and troubleshoot multiple Catalyst desktop switches using a standard Web browser. Cisco CMS Software provides configuration wizards that greatly simplify the implementation of converged applications and network-wide services. The Cisco Catalyst 3550-24 switch comes with the Enhanced Multilayer Software Image (EMI). The Enhanced Multilayer Software Image enables a richer set of enterprise-class features including, hardware-based IP unicast and multicast routing, inter-VLAN routing, Routed access control lists (RACLs), and the Hot Standby Router Protocol (HSRP). Flexibility to upgrade to the Enhanced Multilayer Software Image after the initial deployment is provided through an Enhanced Multilayer Software Image upgrade kit.
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