Transition Networks SM24-100SFP-AH manual Network Planning, Introduction to Switching

Page 23

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

2-1

Image 23

Contents SM24-100SFP-AH Page Fast Ethernet Switch SM24-100SFP-AH E082008-DT-R01 150200069500A Compliances and Safety Warnings LVD Iii Warnhinweis Faseroptikanschlüsse Optische SicherheitPower Cord Set France et Pérou uniquement Sein und die Aufschrift HAR oder Basec tragen Vii End of Product Life SpanManufacturing Materials DocumentationViii About This GuideContents Switch Features Management Features Standards Compliances ContentsTables Figures Figure B-1 RJ-45 Connector Pin NumbersOverview IntroductionSFP Slots Switch ArchitectureDescription of Hardware Network Management OptionsLED Port and System Status LEDsSystem Status LED System Status LEDs Expandability Features and BenefitsPower Supply Sockets ConnectivityManagement Network Planning Introduction to SwitchingNetwork Planning Application ExamplesCollapsed Backbone Network Aggregation Plan Network Aggregation PlanRemote Connection with Fiber Cable Remote Connection with Fiber CableMaking Vlan Connections Making Vlan ConnectionsApplication Notes Selecting a Site Installing the SwitchEquipment Checklist Package ContentsRack Mounting Installing the SwitchMounting Optional Rack-Mounting EquipmentMounting Desktop or Shelf MountingInserting an SFP Transceiver into a Slot Installing an Optional SFP TransceiverConnecting to the Console Port Connecting to a Power SourceSgnd signal ground Wiring Map for Serial CableTwisted-Pair Devices Connecting Network DevicesConnecting to PCs, Servers, Hubs and Switches Making Network ConnectionsMaking Network Connections Network Wiring ConnectionsMaking Fiber Port Connections Fiber Optic SFP DevicesMbps Gigabit Ethernet Collision Domain Connectivity Rules1000BASE-T Cable Requirements Mbps Ethernet Collision Domain Mbps Fast Ethernet Collision DomainCable Labeling and Connection Records Diagnosing Power Problems with the LEDs Appendix a TroubleshootingDiagnosing Switch Indicators Troubleshooting Power and Cooling ProblemsInstallation In-Band Access10BASE-T/100BASE-TX Pin Assignments Appendix B CablesTwisted-Pair Cable and Pin Assignments Cables Straight-Through WiringCrossover Wiring Twisted-Pair Cable and Pin Assignments B 1000BASE-T Pin AssignmentsCable Testing for Existing Category 5 Cable Appendix C Supported SFP Transceivers Supported SFP Transceivers Physical Characteristics Appendix D SpecificationsSpecifications Switch FeaturesManagement Features Standards D StandardsCompliances Specifications Glossary-1 GlossaryGlossary-2 GlossaryGlossary-3 Ieee 802.3uGlossary-4 TIAIndex-1 IndexIndex-2 IndexPage SM24-100SFP-AH E082008-DT-R01 150200069500A