SMC Networks SMC8748ML3, SMC8724ML3 manual Chapter Network Planning, Introduction to Switching

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CHAPTER 2

NETWORK PLANNING

Introduction to Switching

A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This means that it can partition a network more efficiently than bridges or routers. The switch has, therefore, been recognized as one of the most important building blocks for today’s networking technology.

When performance bottlenecks are caused by congestion at the network access point (such as the network card for a high-volume file server), the device experiencing congestion (server, power user or hub) can be attached directly to a switched port. And, by using full-duplex mode, the bandwidth of the dedicated segment can be doubled to maximize throughput.

When networks are based on repeater (hub) technology, the distance between end stations is limited by a maximum hop count. However, a switch turns the hop count back to zero. So subdividing the network into smaller and more manageable segments, and linking them to the larger network by means of a switch, removes this limitation.

A switch can be easily configured in any Ethernet, Fast Ethernet, Gigabit Ethernet, or 10G Ethernet network to significantly boost bandwidth while using conventional cabling and network cards.

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Contents TigerStack Page TigerStack Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Japan Vcci Class a CompliancesFCC Class a Industry Canada Class aCE Mark Declaration of Conformance for EMI and Safety EEC Warnhinweis Faseroptikanschlüsse Optische Sicherheit Safety CompliancePower Cord Safety Australia AS/NZS 3548 1995 Class aPower Cord Set France et Pérou uniquement ViiSchuko ViiiEnvironmental Statement Audience PurposeRelated Publications Table of Contents Xii Making Network ConnectionsXiii AppendicesXiv TablesFigures Figures XviOverview Chapter About TigerstackFront Panels Switch ArchitectureNetwork Management Options Description of Hardware10/100/1000BASE-T Ports Stacking Ports SFP SlotsPort LEDs Port Status LEDs Port and System Status LEDsSystem Status LEDs Power Supply Sockets Optional Redundant Power UnitModule LEDs Optional Media Extender ModulesExtender Module LEDs 10G Xenpak ModulePerformance Features and BenefitsConnectivity ExpandabilityManagement Chapter Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesNetwork Aggregation Plan Network Aggregation PlanRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsIP Routing for Unicast Traffic Using Layer 3 RoutingApplication Notes Network Planning Selecting a Site Installing the SwitchRJ-45 Connections Ethernet CablingPackage Contents Equipment ChecklistOptional Rack-Mounting Equipment Rack Mounting MountingAttaching the Brackets Rack-Montage Montage Rack Mounting GermanAttaching the Adhesive Feet Desktop or Shelf MountingInstalling an Optional Module Installing an Optional Module into the SwitchInserting an SFP Transceiver into a Slot Installing an Optional SFP Transceiver into the SwitchConnecting Switches in a Stack Making Stacking Connections Stacking Topologies Power Socket Connecting to a Power SourceWiring Map for Serial Cable Connecting to the Console PortWiring Map for Serial Cable Cabling Guidelines Connecting Network DevicesChapter Making Network Connections Twisted-Pair DevicesMaking Twisted-Pair Connections Connecting to PCs, Servers, Hubs and SwitchesWiring Closet Connections Network Wiring ConnectionsFiber Optic SFP Devices Making Connections to SFP Transceivers Gbps Fiber Optic ConnectionsConnecting to Xenpak Transceiver Maximum 10GBASE-SR 10 Gigabit Ethernet Cable Length Connectivity Rules1000BASE-T Cable Requirements Gbps Ethernet Collision DomainMbps Gigabit Ethernet Collision Domain Maximum Fast Ethernet Cable Length Mbps Fast Ethernet Collision DomainMbps Ethernet Collision Domain Maximum 1000BASE-ZX Fiber Optic Cable LengthCable Labeling and Connection Records Diagnosing Switch Indicators Appendix a TroubleshootingTable A-1 Troubleshooting Chart Table A-2 Power/RPU LEDs Diagnosing Power Problems with the LEDsInstallation Power and Cooling ProblemsIn-Band Access Stack Troubleshooting Twisted-Pair Cable and Pin Assignments Appendix B CablesTable B-1 10/100BASE-TX MDI and MDI-X Port Pinouts 10BASE-T/100BASE-TX Pin AssignmentsFigure B-2 Straight-through Wiring Straight-Through WiringFigure B-3 Crossover Wiring Crossover Wiring1000BASE-T Pin Assignments Cable Testing for Existing Category 5 CableTable B-2 1000BASE-T MDI and MDI-X Port Pinouts Fiber Standards Adjusting Existing Category 5 Cabling to Run 1000BASE-TPhysical Characteristics Appendix C SpecificationsPower Supply Switching DatabaseWeight TemperatureManagement Features Switch FeaturesCE Mark Emissions SafetyStandards CompliancesExtender Modules Warranty10G Extender Module Xenpak Specifications Appendix D Ordering Information Table D-1 TigerStack 1000 Products and AccessoriesOrdering Information Glossary-1 Glossary1000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Index-1 IndexIndex-2 Index-3 Index-4 Page For Technical SUPPORT, Call
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