SMC Networks SMC6608M, SMC6608T Making Network Connections, Connectivity Rules, SMC 5 4 3 Rule

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INSTALLATION

Making Network Connections

Switches are designed to interconnect multiple segments, or collision domains. Each segment may contain a single server or workstation, or multiple workstations that are connected to a hub.

Connectivity Rules

An overview of the rules for both Ethernet and Fast Ethernet collision domains is provided below.

10 Mbps Ethernet Collision Domain

SMC 5 - 4 - 3 Rule

Between any two PCs or other stations in the same 10 Mbps collision domain, there may be:

•up to 5 cable segments in series,

•up to 4 repeaters (hubs),

•up to 3 populated cable segments, that is, segments attached to two or more PCs (coax networks only).*

*The remaining two segments are unpopulated; these are known as inter-repeater links or IRLs. This distinction between populated and unpopulated segments is significant for coax networks only.

Maximum Cable Length

Cable Type	Maximum Length

Twisted Pair, Categories 3, 4, 5	100 m (328 ft.)

3-9

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Contents TigerSwitch User Guide TigerSwitch Trademarks Limited Warranty Limited Warranty Table of Contents Appendices TroubleshootingSpecifications Pin AssignmentsList of Figures IiiTable of Contents EC Conformance Declaration CompliancesFCC Class a Industry Canada Class aJapan Vcci Class a Australia AS/NZS 3548 1995 Class a CompliancesVii Wichtige SicherheitshinweiseViii Chapter About Tigerswitch About the Tigerswitch TigerSwitch 100 Overview TigerSwitch 100M Base Unit Model SMC6608M Module Ports Connectors Description Port Fast Ethernet Modules for Model SMC6608M10BASE-T/100BASE-TX Ports Switch Ports100BASE-FX Ports SMC6608M only Status LEDs Front Panel LEDsConfigure Button Console PortPower Supply Receptacles Optional Redundant Power UnitRedundant Power Units RPUs Switch Architecture Switching MethodsSpanning Tree Protocol Serial Console Port Management OptionsTelnet Connectivity Key Features and BenefitsPerformance Easy Installation Practical ManagementChapter Planning Introduction to Switching Sample Applications Collapsed BackboneMultiport Bridging Multiple Port Bridging ConnectionsServer Farm Aggregation Server Farm Connectivity and ExpansionHigh-Speed Switch Links Cascading to a Fast Ethernet SwitchCollapsed Backbone Using Fiber Cable Collapsed Backbone with Fiber CableHigh-Speed Fiber Backbone High-Speed Fiber BackboneApplication Notes Page Chapter Installation Selecting a Site Package Contents Equipment ChecklistRequired Rack-Mounting Equipment Mounting the Switch in a Rack MountingAttaching the Brackets Mounting and Stacking the Switch on a Flat Surface Attaching the Adhesive FeetPowering Up Connecting to a Power SourceDiagnostics Mbps Ethernet Collision Domain Making Network ConnectionsConnectivity Rules SMC 5 4 3 RuleSMC 2 1 Rule for Class I and Class II Repeaters Mbps Fast Ethernet Collision DomainSMC 3 2 Rule for Class II Repeaters Maximum 100BASE-T Network DiameterTwisted-Pair Cabling Guidelines Fixed Crossover Ports Connecting 10BASE-T/100BASE-TX PortsDaisy-Chain Port Connecting 100BASE-FX Ports Fiber Cable ConnectorsPage Chapter Configuration Management Configuration and Management Configuration Options Basic Port Settings Advanced System Configuration Required Connections and Switch AccessIn-Band Connections Telnet Snmp Network ConnectionSystem Configuration Program LoginMain Menu Main MenuConfiguration Download & ResetSetting Passwords Password ConfigurationConsole Port Configuration Console ConfigurationSystem Parameter Configuration System ConfigurationConfiguration and Management Port Configuration Port Configuration ScreenConfiguration and Management Spanning Tree Configuration Yes Spanning Tree ConfigurationPort Priority Path Cost Configuration and Management Virtual LAN Configuration Virtual LAN Configuration ScreenMonitoring via the Configure Button and LEDs System MonitoringStatus LEDs LEDs FunctionsSystem Information Advanced System MonitoringSystem Information Port Status Statistics StatisticsStatistics Screen Items Address Table Address TableCurrent Spanning Tree Information Spanning Tree InformationPort State DesignatedCost DesignatedBridgeID DesignatedPort Spanning Tree Information Screen Items Parameter DescriptionDownloading via Tftp Protocol Downloading System SoftwareTftp Download Downloading via the Console Port Resetting the Switch ResetChapter Management VIA Snmp Snmp Protocol MIB Objects Assigning Snmp Agent Access Rights Snmp Parameter ConfigurationSnmp Configuration Community Strings Screen Community StringsTrap Receivers Screen Trap ReceiversAppendix a Troubleshooting Switch Indicators Component Failure LED Array Indicator Column Diagnostic TestsSystem Diagnostic Tests System FailuresPower and Cooling Problems System DiagnosticsPort Diagnostic Tests Port Failures Test Failure LED Array RowCabling Communication ModePhysical Configuration Network CardsManagement Interface Terminal EmulationSystem Integrity Page Appendix B PIN Assignments RJ-45 Pin Assignments RJ-45 Pin Assignments Pin Number AssignmentStraight-Through RJ-45 Pin Assignments End Straight-Through WiringCrossover Wiring Crossover RJ-45 Pin Assignments EndConsole Port Pin Assignments DCEConsole Port to 9-Pin COM Port on PC Switch Port PC Port DB-9 Pin No SignalSwitch Port Pin Modem Port DB-9 Pin No Signal Console Port to 25-Pin DCE Port on ModemConsole Port to 25-Pin DTE Port on PC Switch Port DB-9 Pin NoNull Modem Pin PC Port Appendix C Specifications All Models Operating Temperature Input PowerPower Consumption EMC/Safety CompliancesModel SMC6608T Model SMC6608M100BASE-FX Page Appendix D Glossary ANSI/IEEE 802.3 Standard ANSI/IEEE 802.3u StandardEnd Station CollisionCrossover Port EthernetIcmp Internet Control Message Protocol Media Access Control MACRJ-45 Connector In-BandStraight-through Port TerminatorSimple Network Management Protocol Snmp UTP Unshielded Twisted-PairPublication Number 900.168, Rev. B