3Com 9400 manual Power-up Diagnostics, System Diagnostics, Gigabit Ethernet Port Diagnostics

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30CHAPTER 4: SYSTEM POWER UP

Power-up Diagnostics

The CoreBuilder 9400 system runs diagnostic software at power up. This software verifies that the system works before you add it to the network.

If any component fails during power-up diagnostics, the system fails to power up.

During power up, the system and port status LEDs provide information about the CoreBuilder 9400 system. See Figure 1 in Chapter 1 for the location of the LEDs.

To view error messages that are displayed during power-up diagnostics, connect a terminal, workstation, or PC that has terminal emulation to the system’s Console port. See Chapter 3.

System Diagnostics

This section describes the LEDs that provide information about the system as a whole.

Power LED Activity

■Green — The system is on; the system is running or has run diagnostics.

■No Light — The system has no power; no diagnostics are running.

Fault LED Activity

■No Light — System diagnostics have been successfully completed and the system is operational.

■Solid or Blinking Yellow — The system has failed diagnostics, or some other operational error has occurred.

See Chapter 6 for troubleshooting information.

Gigabit Ethernet Port Diagnostics

This section summarizes the information displayed by the port LEDs.

Packet LED Activity

■No light — Data is not being transmitted or received by the port.

■Blinking yellow — Data is not being transmitted or received by the port.

■Yellow — Data is passing through the port.

Status LED Activity

■No light — The port is off-line.

■Blinking green — The port is online but disabled.

■Green — The port is online and enabled.

See Chapter 6 for troubleshooting information.

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Contents CoreBuilder United States Government Legends Japan Vcci Class a ComplianceAustralian EMC Frameworks Compliance Page Contents System Specifications Introduction Finding Specific Information in This GuideFor information on Icon Type Description ConventionsFor information on Turn to Convention DescriptionCoreBuilder 9400 Documentation Paper DocumentsDocumentation Comments Year 2000 ComplianceSoftware and Documents on CD-ROM CoreBuilder 9400 Intelligent Switch System Features and BenefitsNetwork Configuration Example Speeding Up Server AccessSystem Management System Overview Front Panel 10BASE-TXSystem Overview Back Panel Back Panel of the CoreBuilder 9400 SystemSuperStackII Switch System Overview Sample ApplicationSystem and Setup Overview Installing the System on a Table Top Before You BeginQty To use Installing the System in a Distribution Rack Installing System Mounting BracketsFiber Safety Precautions Overview of CablingCabling Gigabit Ethernet Ports Guidelines for Gigabit Ethernet CablingCabling 1000BASE-SX Ports Cabling Gigabit Ethernet PortsSystem is powered on and running Cabling 1000BASE Gbic PortsSC connector cover Connecting the LX Transceiver to MMF When you cable Gbic transceivers, note that the SC Cabling the Console Port Pin No Signal Description Cabling the Out-of-Band Management PortConsole Port Pin Assignments Male RJ-45 connector 10BASE-T cable System Power UP Power UpPower-up Diagnostics System DiagnosticsGigabit Ethernet Port Diagnostics Check Description Next Step Software ConfigurationSystem Checks SystemSystem Power UP Access Allows you to Using Mechanism About CoreBuilder 9400 System ManagementTerminal Connection Modem ConnectionIP Management Interface Initial Management Access Changing the Console Port Baud SettingConfiguring the IP Interface In-band ManagementOut-of-band Management Getting Additional Help Diagnosing ProblemsPower Failures Abnormal LED ActivitySymptom Possible Sources of the Problem Steps to Take Diagnosing Problems LED Status Possible Sources of the Problem Steps to TakeCleaning Dirty Fiber Optic Ports and Connectors Power Supply Specifications Physical DimensionsSafety Agency Certifications Environmental RequirementsSnmp protocol RFC Software Tftp RFC InstallationStandard Type RFC/IEEE Supported MIB II RFCRemoving and Replacing the Power Supply Safety PrecautionsPower Supply Assembly Removal and Replacement AudienceRemoving and Replacing the Power Supplies Fan Tray Assembly Removal and Replacement Fan Tray Assembly Removal and ReplacementAppendix B FIELD-REPLACEABLE Units General Safety Requirements Wiring Closet RecommendationsDistribution Rack Requirements Protective Grounding for the RackSpace Requirements for the Rack Recommended Service Access Mechanical Requirements for the RackBuilding and Electrical Codes Building CodesNfpa Electrical CodesAppendix C Site Requirements and Safety Codes Online Technical Services 3Com Knowledgebase Web ServicesWorld Wide Web Site 3Com FTP Site 3Com Bulletin Board Service3Com Facts Automated Fax Service Country Data Rate Telephone NumberSupport from Your Network Supplier Support from 3ComEurope Country Telephone Number Asia Pacific RimCountry Latin AmericaReturning Products for Repair Country Telephone Number Fax NumberAppendix D Technical Support Index NumbersIndex Recommendations World Wide Web WWW 50, 51 Index 3Com Corporation Limited Warranty CoreBuilder 9400 High-Availability SwitchWarranties Exclusive