Cisco Systems 3110G, 3012 Troubleshooting, Diagnosing Problems, Verify Switch Module Post Results

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C H A P T E R 3

Troubleshooting

This chapter describes these switch module troubleshooting topics:

Diagnosing Problems, page 3-1

Resetting the Switch Module, page 3-4

How to Replace a Failed Stack Member, page 3-5

Diagnosing Problems

The LEDs on the front panel provide troubleshooting information about the switch module. They show POST failures, port-connectivity problems, and fault indications. You can also get information from the device manager, from the CLI, or from an SNMP workstation. See the switch module software configuration guide and the command reference guide on Cisco.com or the documentation that came with your SNMP application for details.

Verify Switch Module POST Results

As the switch module powers on, it begins the power-on self-test (POST), a series of tests that runs automatically to ensure that the switch module functions properly. It might take several minutes for the switch module to complete POST. When POST completes successfully, the System LED remains green. The other LEDs turn off and return to their operating status. If the switch module fails POST, the System LED is amber.

Note POST failures are usually fatal. Contact your Cisco technical support representative if your switch module does not pass POST.

Verify Switch Module LEDs

If you have physical access to the switch module, look at the port LEDs for troubleshooting information about the switch module. See the “Switch Module LEDs” section on page 1-5for a description of the LED colors and their meanings.

Catalyst Switch Module 3110G, 3110X, and 3012 for IBM BladeCenter Hardware Installation Guide

 

OL-12192-01

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Contents Text Part Number OL-12192-01 Americas HeadquartersPage N T E N T S Diagnosing Problems Conventions PrefaceAudience PurposeRelated Publications IBM Part Number Description Switch ModulesSwitch Model Product OverviewWS-CBS3012-IBM WS-CBS3012-IBM-I Hardware Features10/100/1000 Ethernet Ports Catalyst Switch ModulePort Description Gigabit Ethernet Module SlotPort Numbering Internal 100BASE-T Ethernet Management PortSwitch Module LEDs and Mode Button Switch Module LEDsColor System Status Mode ButtonSystem Power LED Stack Master LEDFault LED Fault/Stack Mode LEDStack Member LED Color Activity LED Description Link Status LED Description Port LEDsColor LED Description Port Status LED Description Management OptionsStackWise Plus Ports Console PortNetwork Configurations Preparing for Installation Switch Module InstallationSafety Warnings OL-12192-01 Box Contents Installation GuidelinesBlade Enclosure Rear-Panel View Installing the Switch ModuleInstalling the Switch Module After Installing the Switch ModuleStacking Guidelines Creating Switch StacksConnecting the StackWise Plus Cables Connecting a Switch StackSwitch Stack Cabling Examples 203295 203296 Installing an X2 Transceiver Module Installing Devices in the 10-Gigabit Ethernet SlotRemoving a Module Installing an X2 Transceiver ModuleWhere to Go Next Connecting Devices to the Ethernet PortsDevice Crossover Cable OL-12192-01 Verify Switch Module LEDs TroubleshootingDiagnosing Problems Verify Switch Module Post ResultsLink Status Verify Switch Module ConnectionsBad or Damaged Cable Ethernet and Fiber CablesSpanning Tree Loops Transceiver IssuesPort and Interface Settings Ping End DeviceAutonegotiation and Network Interface Cards Resetting the Switch ModuleVerify Switch Module Performance Speed, Duplex, and AutonegotiationUsing the Mode Button to Reset the Switch Module How to Replace a Failed Stack MemberOL-12192-01 Environmental Ranges Technical SpecificationsPhysical Specifications Power SpecificationsOL-12192-01 Connector Specifications Connector and Cable Specifications10/100/1000 Ports Gigabit Ethernet Module Interface Cable and Adapter SpecificationsGigabit Ethernet X2 Transceiver Module Cable Specifications Four Twisted-Pair Cable Pinouts Four Twisted-Pair Straight-Through Cable SchematicIdentifying a Crossover Cable Two Twisted-Pair Cable PinoutsOL-12192-01 Numerics IN-2 IN-3 IN-4