SMC Networks SMC8724ML3, SMC8748ML3 manual Stack Troubleshooting

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TROUBLESHOOTING

Stack Troubleshooting

If a stack fails to initialize or function, first check the following items:

•Check that all stacking cables are properly connected.

•Check if any stacking cables appear damaged.

•Check that only one Stack Master button is pressed in.

•Check that all switches in the stack are powered on.

After checking all items, reboot all the switches in the stack.

The switches allow you to configure ring- or line-topology stacking. When using ring-topology stacking configuration and a switch fails, or a stacking cable is disconnected, the entire stack reboots and resumes normal operation using line-topology stacking through the remaining stack connections. Also, any changes to the stack including powering down a unit or inserting a unit causes the stack to reboot.

A-4

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Contents TigerStack Page TigerStack Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Industry Canada Class a CompliancesFCC Class a Japan Vcci Class aCE Mark Declaration of Conformance for EMI and Safety EEC Australia AS/NZS 3548 1995 Class a Safety CompliancePower Cord Safety Warnhinweis Faseroptikanschlüsse Optische SicherheitPower Cord Set Vii France et Pérou uniquementViii SchukoEnvironmental Statement Purpose AudienceRelated Publications Table of Contents Making Network Connections XiiAppendices XiiiTables XivFigures Xvi FiguresChapter About Tigerstack OverviewSwitch Architecture Front PanelsDescription of Hardware Network Management Options10/100/1000BASE-T Ports SFP Slots Stacking PortsPort and System Status LEDs Port LEDs Port Status LEDsSystem Status LEDs Optional Redundant Power Unit Power Supply Sockets10G Xenpak Module Optional Media Extender ModulesExtender Module LEDs Module LEDsExpandability Features and BenefitsConnectivity PerformanceManagement Introduction to Switching Chapter Network PlanningApplication Examples Collapsed BackboneNetwork Aggregation Plan Network Aggregation PlanRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsUsing Layer 3 Routing IP Routing for Unicast TrafficApplication Notes Network Planning Installing the Switch Selecting a SiteEthernet Cabling RJ-45 ConnectionsEquipment Checklist Package ContentsOptional Rack-Mounting Equipment Mounting Rack MountingAttaching the Brackets Montage Rack Mounting German Rack-MontageDesktop or Shelf Mounting Attaching the Adhesive FeetInstalling an Optional Module into the Switch Installing an Optional ModuleInstalling an Optional SFP Transceiver into the Switch Inserting an SFP Transceiver into a SlotConnecting Switches in a Stack Making Stacking Connections Stacking Topologies Connecting to a Power Source Power SocketConnecting to the Console Port Wiring Map for Serial CableWiring Map for Serial Cable Twisted-Pair Devices Connecting Network DevicesChapter Making Network Connections Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Making Twisted-Pair ConnectionsNetwork Wiring Connections Wiring Closet ConnectionsFiber Optic SFP Devices Gbps Fiber Optic Connections Making Connections to SFP TransceiversConnecting to Xenpak Transceiver Gbps Ethernet Collision Domain Connectivity Rules1000BASE-T Cable Requirements Maximum 10GBASE-SR 10 Gigabit Ethernet Cable LengthMbps Gigabit Ethernet Collision Domain Maximum 1000BASE-ZX Fiber Optic Cable Length Mbps Fast Ethernet Collision DomainMbps Ethernet Collision Domain Maximum Fast Ethernet Cable LengthCable Labeling and Connection Records Appendix a Troubleshooting Diagnosing Switch IndicatorsTable A-1 Troubleshooting Chart Diagnosing Power Problems with the LEDs Table A-2 Power/RPU LEDsPower and Cooling Problems InstallationIn-Band Access Stack Troubleshooting Appendix B Cables Twisted-Pair Cable and Pin Assignments10BASE-T/100BASE-TX Pin Assignments Table B-1 10/100BASE-TX MDI and MDI-X Port PinoutsStraight-Through Wiring Figure B-2 Straight-through WiringCrossover Wiring Figure B-3 Crossover WiringCable Testing for Existing Category 5 Cable 1000BASE-T Pin AssignmentsTable B-2 1000BASE-T MDI and MDI-X Port Pinouts Adjusting Existing Category 5 Cabling to Run 1000BASE-T Fiber StandardsAppendix C Specifications Physical CharacteristicsTemperature Switching DatabaseWeight Power SupplySwitch Features Management FeaturesCompliances SafetyStandards CE Mark EmissionsWarranty Extender Modules10G Extender Module Xenpak Specifications Table D-1 TigerStack 1000 Products and Accessories Appendix D Ordering InformationOrdering Information Glossary Glossary-11000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Index Index-1Index-2 Index-3 Index-4 Page For Technical SUPPORT, Call