SMC Networks 100 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 maximum distance between end stations is limited. For Ethernet, there may be up to four hubs between any pair of stations; for Fast Ethernet, the maximum is two. This is known as the 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 or Fast Ethernet network to significantly boost bandwidth while using conventional cabling and network cards.

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Contents TigerSwitch Page TigerSwitch Installation Guide Trademarks Limited Warranty Limited Warranty EC Conformance Declaration Class a CompliancesFCC Class a Industry Canada Class a Iii Safety ComplianceWarnhinweis Faseroptikanschlüsse Optische Sicherheit Underwriters Laboratories Compliance StatementWichtige Sicherheitshinweise Germany Table of Contents Making Network Connections Vii Viii Overview Chapter About TigerswitchOptional Modules Switch Architecture100BASE-FX VF-45 Ports Description of HardwareManagement Options Port and System LEDs Status LEDsNetwork Management Module Network Management ModuleVLANs Spanning Tree ProtocolOptional Media Extender Modules Multicast SwitchingTraffic Priority Optional 100BASE-FX Module SMC6900FSCOptional 1000BASE-LX Module SMC6900GLSC Optional 100BASE-FX Module SMC6900FSSCOptional 1000BASE-SX Module SMC6900G Optional Stack Module SMC6900S Optional Redundant Power Unit SMCRPU150WOptional 1000BASE-T Module SMC6900GT 12. Power Supply Receptacles Power Supply ReceptaclesExpandability Features and BenefitsConnectivity Management PerformanceAbout the Tigerswitch About the Tigerswitch Chapter Network Planning Introduction to SwitchingCollapsed Backbone Sample ApplicationsCentral Wiring Closet Central Wiring ClosetRemote Connections with Fiber Cable Collapsed Backbone Using Fiber CableMaking Vlan Connections Making Vlan ConnectionsMbps Gigabit Ethernet Collision Domain Connectivity RulesMaximum 1000BASE-T Optic Cable Distance Maximum 1000BASE-SX Fiber Optic Cable DistanceMbps Fast Ethernet Collision Domain Maximum Network Diameter Using RepeatersMaximum 100BASE-FX Fiber Optic Cable Distance SMC 3-2 Rule for Class II RepeatersMaximum Fast Ethernet Cable Distance Cable Type Connecting Max. DistanceApplication Notes Network Planning Selecting a Site Installing the SwitchOptional Rack-Mounting Equipment Equipment ChecklistPackage Contents Rack Mounting MountingAttaching the Brackets Attaching the Adhesive Feet Desktop or Shelf MountingInstalling an Optional Module into the Switch Stacking Installing a ModuleStacking the Switches Power Receptacle Connecting to a Power SourceInstalling the Switch Chapter Making Network Connections Connecting Network DevicesVF-45 Fiber Connections SC Fiber Connections Making SC Port Connections Cabling Guidelines Connecting to PCs, Servers, Hubs and Switches1000BASE-T Twisted-Pair Connections Making Twisted-Pair Connections Wiring Closet Connections Wiring Closet ConnectionsMaking Network Connections Diagnosing Switch Indicators Appendix a TroubleshootingIn-Band Access Power and Cooling ProblemsInstallation Troubleshooting Troubleshooting Appendix B Cables SpecificationsCables 1000BASE-T Pin Assignments RJ-45 Port and Cable Assignments1000BASE-T Cable Requirements Cable Testing for Existing Category 5 CableAdjusting Existing Category 5 Cabling DB-9 Port Pin Assignments Console Port Pin AssignmentsConsole Port to 25-Pin DTE Port on PC Console Port to 9-Pin COM Port on PCConsole Port to 25-Pin DCE Port on Modem Cables Physical Characteristics Appendix C SpecificationsTemperature WeightPower Supply Power ConsumptionSwitch Features Management Features Compliances WarrantyStandards 1000BASE-SX Extender Module Slide-in Module100BASE-FX Extender Module 1000BASE-T Extender Module 1000BASE-LX Extender ModuleStack Module Connector InterfaceAgent Module Appendix D Ordering Information Ordering Information Glossary-1 Glossary1000BASE-T Auto-NegotiationGlossary-2 Glossary-3 Glossary-4 Glossary-5 Virtual LAN Vlan Glossary-6Transmission Control Protocol/Internet Protocol TCP/IP Index-1 IndexIndex-2 See RPU Index-3Index-4 Page Internet