SMC Networks SMC8848M manual Connecting Switches in a Stack

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CONNECTING SWITCHES IN A STACK

3. Slide the transceiver into the slot until it clicks into place.

Note: SFP and XFP transceivers are hot-swappable. The switch does not need to be powered off before installing or removing a transceiver. However, always first disconnect the network cable before removing a transceiver.

Note: SFP and XFP transceivers are not provided in the switch package.

Connecting Switches in a Stack

Figure 3-7shows how the stack cables are connected between switches in a stack. Each stacking connection is a 48 Gbps full-duplex high-speed serial link using proprietary stacking cables. The switch supports a line- and ring-topology stacking configuration, or can be used stand alone. To ensure minimal disruption in case a unit or stacking cable fails, we recommend always use a ring-topology.

In line-topology stacking there is a single stack cable connection between each switch that carries two-way communications across the stack. In ring-topology stacking, an extra cable is connected between the top and bottom switches forming a “ring” or “closed-loop.” The closed-loop cable provides a redundant path for the stack link, so if one link fails, stack communications can still be maintained. Figure 3-7illustrates a ring-topology stacking configuration.

To connect up to eight switches in a stack, perform the following steps:

1.Plug one end of the stack cable (ordered separately) in the Down (right) port of the top unit.

2.Plug the other end of the stack cable into the Up (left) port of the next unit.

3.Repeat steps 1 and 2 for each unit in the stack. Form a simple chain starting at the Down port on the top unit and ending at the Up port on the bottom unit (stacking up to 8 units).

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Contents TigerStack II 10/100/1000 Page TigerStack II 10/100/1000 Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA FCC Class a CompliancesIndustry Canada Class a Japan Vcci Class aCE Mark Declaration of Conformance for EMI and Safety EEC Power Cord Safety Safety ComplianceAustralia AS/NZS 3548 1995 Class a Warnhinweis Faseroptikanschlüsse Optische SicherheitPower Cord Set France et Pérou uniquement ViiSchuko ViiiEnvironmental Statement Purpose AudienceRelated Publications Table of Contents Xii Making Network ConnectionsXiii AppendicesXiv Glossary IndexTables Xvi FiguresOverview Chapter AboutFront Panels Switch ArchitectureDescription of Hardware Network Management Options10/100/1000BASE-T Ports SFP Slots Gigabit Ethernet Module SlotsStacking Ports Port LEDs Port Status LEDs Port and System Status LEDsSystem Status LEDs System LEDsDescription of Hardware Power Supply Sockets Optional Redundant Power SupplyOptional Media Extender Module 10GBASE XFP ModuleConnectivity Features and BenefitsExtender Module LEDs Module LEDsExpandability PerformanceManagement Chapter Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesNetwork Aggregation Plan Network Aggregation PlanRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsApplication Notes Selecting a Site Installing the SwitchRJ-45 Connections Ethernet CablingEquipment Checklist Package ContentsOptional Rack-Mounting Equipment Rack Mounting MountingAttaching the Brackets Attaching the Adhesive Feet Desktop or Shelf MountingInstalling an Optional Module Installing an Optional Module into the SwitchOptional Transcievers Inserting an SFP Transceiver into a SlotConnecting Switches in a Stack Making Stacking Connections Stacking Topologies Power Socket Connecting to a Power SourceConnecting to the Console Port Wiring Map for Serial CableWiring Map for Serial Cable Installing the Switch Chapter Making Network Connections Connecting Network DevicesTwisted-Pair Devices Cabling GuidelinesMaking Twisted-Pair Connections Connecting to PCs, Servers, Hubs and SwitchesWiring Closet Connections Network Wiring ConnectionsFiber Optic SFP Devices Making Connections to SFP Transceivers Gbps Fiber Optic ConnectionsMaking Network Connections Connecting to an XFP Transceiver 1000BASE-T Cable Requirements Connectivity RulesGbps Ethernet Collision Domain Maximum 10GBASE-SR 10 Gigabit Ethernet Cable LengthMbps Gigabit Ethernet Collision Domain Mbps Ethernet Collision Domain Mbps Fast Ethernet Collision DomainMaximum 1000BASE-ZX Fiber Optic Cable Length Maximum Fast Ethernet Cable LengthCable Labeling and Connection Records Making Network Connections Appendix a Troubleshooting Diagnosing Switch IndicatorsTable A-1 Troubleshooting Chart Table A-2 Power/RPS LEDs Diagnosing Power Problems with the LEDsPower and Cooling Problems InstallationIn-Band Access Stack Troubleshooting Twisted-Pair Cable and Pin Assignments Appendix B CablesTable B-1 10/100BASE-TX MDI and MDI-X Port Pinouts 10BASE-T/100BASE-TX Pin AssignmentsFigure B-2 Straight-through Wiring Straight-Through WiringFigure B-3 Crossover Wiring Crossover WiringCable Testing for Existing Category 5 Cable 1000BASE-T Pin AssignmentsTable B-2 1000BASE-T MDI and MDI-X Port Pinouts Fiber Standards Adjusting Existing Category 5 Cabling to Run 1000BASE-TPhysical Characteristics Appendix C SpecificationsWeight Switching DatabaseTemperature Power SupplyManagement Features Switch FeaturesStandards SafetyCompliances CE Mark EmissionsWarranty Extender Modules10G Extender Module XFP Specifications Eine Site Auswählen Selecting a Site German Appendix D German InstructionsRack-Montage Montage Rack Mounting Instructions GermanGerman Instructions Montage Rack Mounting Instructions German Appendix E Ordering Information Ordering Information Glossary Glossary-11000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Transmission Control Protocol/Internet Protocol TCP/IPVirtual LAN Vlan Index-1 IndexIndex-2 Index-3 Index-4 Page For Technical SUPPORT, Call