Chapter Network Planning | SMC Networks SMC8748ML3, SMC8724ML3

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

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 a CE Mark Declaration of Conformance for EMI and Safety EEC Warnhinweis Faseroptikanschlüsse Optische Sicherheit Safety CompliancePower Cord Safety Australia AS/NZS 3548 1995 Class a Power Cord Set France et Pérou uniquement Vii Schuko Viii Environmental Statement Audience PurposeRelated Publications Table of Contents Xii Making Network Connections Xiii Appendices Xiv Tables Figures Figures Xvi Overview Chapter About Tigerstack Front Panels Switch Architecture Network Management Options Description of Hardware10/100/1000BASE-T Ports Stacking Ports SFP Slots Port LEDs Port Status LEDs Port and System Status LEDs System Status LEDs Power Supply Sockets Optional Redundant Power Unit Module LEDs Optional Media Extender ModulesExtender Module LEDs 10G Xenpak Module Performance Features and BenefitsConnectivity Expandability Management Chapter Network Planning Introduction to Switching Collapsed Backbone Application Examples Network Aggregation Plan Network Aggregation Plan Remote Connections with Fiber Cable Remote Connections with Fiber Cable Making Vlan Connections Making Vlan Connections IP Routing for Unicast Traffic Using Layer 3 Routing Application Notes Network Planning Selecting a Site Installing the Switch RJ-45 Connections Ethernet Cabling Package Contents Equipment ChecklistOptional Rack-Mounting Equipment Rack Mounting Mounting Attaching the Brackets Rack-Montage Montage Rack Mounting German Attaching the Adhesive Feet Desktop or Shelf Mounting Installing an Optional Module Installing an Optional Module into the Switch Inserting an SFP Transceiver into a Slot Installing an Optional SFP Transceiver into the Switch Connecting Switches in a Stack Making Stacking Connections Stacking Topologies Power Socket Connecting to a Power Source Wiring Map for Serial Cable Connecting to the Console PortWiring Map for Serial Cable Cabling Guidelines Connecting Network DevicesChapter Making Network Connections Twisted-Pair Devices Making Twisted-Pair Connections Connecting to PCs, Servers, Hubs and Switches Wiring Closet Connections Network Wiring Connections Fiber Optic SFP Devices Making Connections to SFP Transceivers Gbps Fiber Optic Connections Connecting to Xenpak Transceiver Maximum 10GBASE-SR 10 Gigabit Ethernet Cable Length Connectivity Rules1000BASE-T Cable Requirements Gbps Ethernet Collision Domain Mbps Gigabit Ethernet Collision Domain Maximum Fast Ethernet Cable Length Mbps Fast Ethernet Collision DomainMbps Ethernet Collision Domain Maximum 1000BASE-ZX Fiber Optic Cable Length Cable 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 LEDs Installation Power and Cooling ProblemsIn-Band Access Stack Troubleshooting Twisted-Pair Cable and Pin Assignments Appendix B Cables Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts 10BASE-T/100BASE-TX Pin Assignments Figure B-2 Straight-through Wiring Straight-Through Wiring Figure B-3 Crossover Wiring Crossover Wiring 1000BASE-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-T Physical Characteristics Appendix C Specifications Power Supply Switching DatabaseWeight Temperature Management Features Switch Features CE Mark Emissions SafetyStandards Compliances Extender Modules Warranty10G Extender Module Xenpak Specifications Appendix D Ordering Information Table D-1 TigerStack 1000 Products and Accessories Ordering Information Glossary-1 Glossary1000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Index-1 Index Index-2 Index-3 Index-4 Page For Technical SUPPORT, Call