90DAY REFURBSIHED This version of the 3550-24 ships with an 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). Now you can deploy network-wide intelligent services, such as advanced quality of service, rate-limiting, Cisco security access control lists, multicast management, and high-performance IP routing-while maintaining the simplicity of traditional LAN switching. The Cisco Catalyst 3550 Intelligent Ethernet Switch is a enterprise-class, stackable, multilayer switches that provide 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 new configuration wizards that greatly simplify the implementation of converged applications and network-wide services. The built-in Gigabit Ethernet ports in this switch accommodates a range of GBIC transceivers, including the Cisco GigaStack GBIC, 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, and 1000BASE-ZX GBICs. The dual GBIC-based Gigabit Ethernet implementation on the Fast Ethernet configurations provides customers tremendous deployment flexibility, allowing customers to implement one type of stacking and uplink configuration today, while preserving the option to migrate that configuration in the future. High levels of stack resiliency can also be implemented by deploying dual redundant Gigabit Ethernet uplinks, a redundant GigaStack GBIC loopback cable, UplinkFast and CrossStack UplinkFast technologies for high-speed uplink and stack interconnection failover, and Per VLAN Spanning Tree Plus (PVST+) for uplink load balancing. This Gigabit Ethernet flexibility makes the Catalyst 3550 switch an ideal LAN edge complement to the Cisco Catalyst 6500 Family of Gigabit Ethernet optimized core LAN switches. Features: 24 10/100 ports and 2 GBIC-based Gigabit Ethernet ports 1 RU stackable, multilayer switch Delivers enterprise-class intelligent services to the network edge Enhanced Multilayer Software Image installed for full dynamic IP routing IEEE 802.1x (planned future software support) for dynamic port-based security Cisco security VLAN ACLs (VACLs) on all VLANs to prevent unauthorized data flows to be bridged within VLANs Time-based ACLs allow the implementation of security settings during specific periods of the day Private VLAN edge provides security and isolation between ports on a switch, ensuring that voice traffic travels directly from its entry point to the aggregation device through a virtual path and cannot be directed to a different port TACACS+ and RADIUS (planned future software support) authentication to enable centralized control of the switch and restrict unauthorized users from altering the configuration MAC-based port-level security prevents unauthorized stations from accessing the switch (planned future software support) Multilevel security on console access prevents unauthorized users from altering the switch configuration The user-selectable address-learning mode simplifies configuration and enhances security Bridge protocol data unit (BPDU) guard shuts down Spanning-Tree Protocol PortFast-enabled interfaces when BPDUs are received to avoid accidental topology loops Spanning-tree root guard (STRG) prevents edge devices not in the network administrator's control from becoming Spanning-Tree Protocol root nodes. Mfr Refubished |