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SMC Networks SMC8126PL2-F manual Network Planning, Introduction to Switching

Models: SMC8126PL2-F

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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. These switches have, 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, or Gigabit Ethernet network to significantly boost bandwidth while using conventional cabling and network cards.

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SMC Networks SMC8126PL2-F manual Network Planning, Introduction to Switching

Contents

L2-LiteSMB PoE Gigabit Switch SMC8126PL2-FINSTALLATION GUIDE TigerSwitchTM 10/100/1000Irvine, CA TigerSwitch 10/100/1000 Installation Guide20 Mason SeptemberTrademarks Copyright 2009 by SMC Networks, Inc 20MasonWarranty and Product Registration Compliances and Safety Warnings FCC - Class AIndustry Canada - Class A according to EN 61000-3-3/1995 Warning Fiber Optic Port Safety Safety CompliancePSE Alarm Power Cord SafetyFrance and Peru only Power Cord SetSeguridad del cable de alimentación eléctrica France et Pérou uniquementConjunto de cables de alimentación eléctrica Francia y Perú únicamenteSicherheitsanweisungen durchlesen Warnings and Cautionary MessagesAdvertencias y mensajes de precaución Environmental StatementThe Management Guide PurposeAudience Related PublicationsPage Chapter 2 Network Planning ContentsChapter 3 Installing the Switch Chapter 1 IntroductionAppendix B Cables Appendix A TroubleshootingAppendix C Specifications Chapter 4 Making Network ConnectionsContents Tables Figures Page Port Status LEDs RJ-45Ports Non-PoEConsole Port Redundant Power SupplyFigure 1-1Front Panel Figure 1-2Rear Panel1 Introduction Switch ArchitecturePower-over-EthernetCapability Network Management OptionsPort and System Status LEDs Description of Hardware10/100/1000BASE-TPorts SFP SlotsDescription Table 1-1Port Status LEDsLabel ColorFigure 1-6Power Supply Socket Optional Redundant Power UnitPower Supply Socket Mode PoE/Link ButtonPerformance Features and BenefitsConnectivity ExpandabilityChapter 2 Network Planning Introduction to SwitchingApplication Examples Collapsed BackboneFigure 2-1Collapsed Backbone Figure 2-2Network Aggregation Plan Network Aggregation PlanFigure 2-3Remote Connections with Fiber Cable Remote Connections with Fiber CableFigure 2-4Making VLAN Connections Making VLAN ConnectionsApplication Notes Chapter 3 Installing the Switch Selecting a SiteEthernet Cabling RJ-45Connector Figure 3-1 RJ-45Connections Equipment ChecklistPackage Contents Optional Rack-MountingEquipmentMounting Rack MountingFigure 3-2Attaching the Brackets Desktop or Shelf Mounting Figure 3-3Installing the Switch in a RackFigure 3-4Attaching the Adhesive Feet Installing an Optional SFP Transceiver Figure 3-7Serial Port RJ-45 Pin-Out Connecting to a Power SourceConnecting to the Console Port Figure 3-6Power SocketNull Modem Wiring Map for Serial CableTable 3-1Serial Cable Wiring Switch’s 8-Pin3 Installing the Switch Cabling Guidelines Chapter 4 Making Network ConnectionsConnecting Network Devices Twisted-PairDevicesFigure 4-1Making Twisted-PairConnections Connecting to PCs, Servers, Hubs and SwitchesNetwork Wiring Connections 4 Making Network ConnectionsFigure 4-2Network Wiring Connections Fiber Optic SFP DevicesFigure 4-3Making Connections to SFP Transceivers Connectivity RulesConnector 1000BASE-TCable Requirements1000 Mbps Gigabit Ethernet Collision Domain 100 Mbps Fast Ethernet Collision DomainTable 4-6Maximum Ethernet Cable Length Cable Labeling and Connection Records10 Mbps Ethernet Collision Domain ConnectorTable A-1Troubleshooting Chart Appendix A TroubleshootingDiagnosing Switch Indicators Power and Cooling ProblemsInstallation In-BandAccessA Troubleshooting Figure B-1 RJ-45Connector Pin Numbers Appendix B CablesTwisted-PairCable and Pin Assignments 10BASE-T/100BASE-TXPin AssignmentsMDI-XSignal Name Straight-ThroughWiringCrossover Wiring MDI Signal NameMDI-XSignal Name 1000BASE-TPin AssignmentsFigure B-3Crossover Wiring MDI Signal NameITU-T Cable Testing for Existing Category 5 CableFiber Standards Table B-3Fiber StandardsApplication Table B-3Fiber StandardsITU-T DescriptionB Cables Weight Appendix C SpecificationsPhysical Characteristics Switching DatabasePower Supply Switch FeaturesManagement Features Power-over-EthernetEmissions StandardsCompliances SafetyC Specifications Appendix D Ordering Information Product NumberDescription D Ordering Information Glossary CSMA/CD IEEE 802.3z Glossary Virtual LAN VLANGlossary-4 Numerics IndexIndex-2 IndexPage 150200000032A R01 SMC8126PL2-F