The way in which businesses use LANs is changing and the performance requirement at theedge of the network is becoming more demanding. IP Telephony and other collaborativeapplications are driving more traffic to the edge of the network. As file sizes continue to grow,users need more bandwidth. Quite simply, the convergence of voice, video, data, and storageenables users to do more from their desktop. Enterprises need to be able to address today’sincreased demands and still prepare for the unknown demands of tomorrow. By re-assessinghow they’re using the wiring closet, they can achieve both goals, and be assured that theirinvestments will be protected for a long time to come.Part of the Nortel Networks BayStack* 5000 series, BayStack 5510 Switches are 1 rack unit highstackable 10/100/1000 Mbps Ethernet Layer 3 routing switches that are designed to providehigh-density Gigabit desktop connectivity for mid-size and large enterprise customers’ wiringclosets. BayStack 5510 Switches offer a scalable and resilient solution, providing exceptionalsecurity features and support for enhanced convergence while minimizing capital and opera-tional expenses. The BayStack 5000 familyof switches represents the next generation ininnovation and performance in a stackablesolution.BayStack 5510 Switches are available intwo models—the BayStack 5510-48TSwitch (Figure 1) and the BayStack 5510-24TSwitch. Power over Ethernet versions of theswitches are planned for release in the future.Highest-density Gigabit desktop switchingThe BayStack 5510-48T Switch features 48 10/100/1000BASE-T RJ-45 ports for desktopswitching and two built-in SFP (Small Form factor Pluggable) GBIC ports for uplink. Port 47and Port 48 offer configuration flexibility by allowing the network administrator to configureeach port as either 10/100/1000 or make use of the built-in SFP GBIC. As many as eightBayStack 5510-48T Switches can be stacked to achieve up to 384 10/100/1000 ports forhighest-density desktop switching.Product BriefBayStack 5510 SwitchesBayStack 5510 Switch benefits• Up to 384 ports of Gigabit desktopconnectivity in an 8-rack unit high design—the highest density in the industry• Industry-leading Gigabit Ethernet perform-ance with innovative stacking using FASTstack (Flexible Advanced StackingTechnology)—providing up to 640 Gbps• High-performance switch fabric of160 Gbps assures wire-speed operationwith no packet loss• Hardware-based Layer 3 routing at wire-speed and across the stack• Intelligence at the network edge withQuality of Service (QoS)• Cost-effective plug-and-play stacking withbuilt-in stacking ports• Up to 16 built-in SFP GBIC uplink portsin a stack• Flexible stacking across BayStack 5000series switches—a stack is managed as asingle entity with a single IP address• Unmatched resilient connectivity andstackability for minimal network downtime• Secure access and data traffic protectionhigh-performancegigabit connectivityFigure 1. The BayStack 5510-24T Switch(top) and 5510-48T Switch (bottom)