Enterasys Networks 2G4072-52 manual Troubleshooting Checklist

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Troubleshooting Checklist

Troubleshooting Checklist

If the 2G4072‐52 is not working properly, refer to Table 4‐2 for a checklist of problems, possible causes, and recommended actions to resolve the problem.

Table 4-2 Troubleshooting Checklist

	Problem	Possible Cause	Recommended Action

	All LEDs are	Loss of power.	Ensure the 2G4072-52 was installed properly according to
	OFF.		the installation instructions in Chapter 3, and that the
			chassis has power.

	No Local	Incorrect terminal setup.	Refer to the Enterasys Matrix N Standalone Series
	Management		Configuration Guide for proper setup procedures.
	Password
	Password	Improper console cable pinouts.	Refer to Appendix A for proper COM port pinouts.
	screen.	Improper console cable pinouts.	Refer to Appendix A for proper COM port pinouts.
	screen.
		Corrupt firmware image or	If possible, attempt to download the image to the
		hardware fault.	2G4072-52 again. Refer to Appendix B for instructions to
			clear NVRAM.

	Cannot navigate	Improper username/ password	If the username/password combination has been forgotten,
	beyond	combination entered.	refer to Appendix B for instructions on how to set the mode
	Password		switch to reset the username/password combination to the
	screen.		default values.

	Cannot contact	IP address not assigned.	Refer to the Enterasys Matrix N Standalone Series
	the 2G4072-52		Configuration Guide for the IP address assignment
	through in-band		procedure.
	management.
	management.	Port is disabled.	Enable port. See Enterasys Matrix N Standalone Series
		Port is disabled.	Enable port. See Enterasys Matrix N Standalone Series
			Configuration Guide for instructions to enable/disable
			ports.

Host Port policy and/or management VLAN is incorrectly configured, or not configured.

Verify that a management VLAN exists and that it is associated with the Host Port.

Refer to the Enterasys Matrix N Standalone Series Configuration Guide for information about Host Port and management VLAN configuration.

No link to device.	Verify that all network connections between the network
	management station and the 2G4072-52 are valid and
	operating.
	If the problem continues, contact Enterasys Networks for
	technical support.

4-4 Troubleshooting

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Contents Enterasys Matrix Page Page Industry Canada Notice Product SafetyFederal Communications Commission FCC Notice Class a ITE Notice Clase A. Aviso de ITEElektro- magnetische Kompatibilität EMC Electromagnetic Compatibility EMCCompatibilidad Electromágnetica EMC Hazardous SubstancesSupplement to Product Instructions Vcci Notice Bsmi EMC Statement TaiwanSafety Information Class 1 Laser Transceivers Declaration of ConformityEnterasys NETWORKS, INC. Firmware License Agreement Viii Page Page Contents Index TroubleshootingAppendix a Specifications Figures TablesXiv Important Notice PrefaceWho Should Use This Guide For Refer to Structure of This GuideRelated Documents Document Conventions This guide uses the following conventionsGetting Help Support@enterasys.comIntroduction Connectivity Switch Configuration Using WebView2G4072-52 ManagementStandards Compatibility Lanview Diagnostic LEDsSwitch Configuration Using CLI Commands Lanview Diagnostic LEDs Introduction Network Requirements Link Aggregation1000BASE-SX/SX+/LX Network 10BASE-T Network100BASE-TX Network 1000BASE-T NetworkInstallation Unpacking the 2G4072-52Contents of 2G4072-52 Rack MountingAttaching Rack-mount Ears to Enterasys Matrix N SA 2G4072-52 Connecting Power Connecting PowerConnecting to the Network Connecting UTP CablesRX TX Crossover Four-Wire Cable RJ45 Pinouts Eight-Wire Crossover Cable RJ45 Pinouts Connecting Fiber-Optic Cables to Mini-GBICs 2G4072-52 2G4072-52 ÃÄÀ Connecting to an IBM PC or Compatible Device Connecting to the COM Port for Local ManagementWhat Is Needed Parameter SettingConnecting to a VT Series Terminal 12 Connecting an IBM PC or CompatibleConnecting to a Modem 13 Connecting a VT Series Terminal14 Connecting to a Modem VT Series Port Adapter Wiring and Signal Diagram RJ45 DB25 Adapter Wiring and Signal AssignmentsCOM Port Adapter Wiring and Signal Diagram RJ45 Modem Port Adapter Wiring and Signal Diagram RJ45 DB25 Completing the InstallationLog-In Using a Console Port Connection Completing the Installation 15 Matrix Startup Screen Example N7 Chassis Viewing the Receive and Transmit Activity TroubleshootingUsing Lanview LED Color State Recommended ActionAlternating 67% on, 33% off Troubleshooting Checklist Refer to the Enterasys Matrix N Standalone SeriesProblem Possible Cause Recommended Action Overview of Shutdown ProcedureTroubleshooting Checklist Recommended Shutdown Procedure Using Reset Button Last Resort Shutdown Procedure Using Reset ButtonTable A-1 Specifications ItemSpecification Specifications2G4072-52 Specifications 2G4072-52 PortsProcessors/Memory Mini-GBIC Input/Output SpecificationsTable A-2 Mini-GBIC Input/Output Port Specifications PhysicalMGBIC-LC03 Specifications 1000BASE-SX Gigabit Ethernet SpecificationsMGBIC-LC01 / MGBIC-MT01 Specifications 1000BASE-SX MGBIC-LC09 Specifications 1000BASE-LX Table A-7 MGBIC-08 Optical Specifications MGBIC-08 Specifications 1000BASE-ELXMGBIC-02 Specifications 1000BASE-T Table A-9 MGBIC-02 SpecificationsRegulatory Compliance Table A-3 COM Port Pin Assignments Signal Name Input/OutputCOM Port Pinout Assignments Table A-4 Compliance Standards Regulatory ComplianceMode Switch Bank Settings and Optional Installations Setting the Mode Switches Required ToolsFigure B-1 Mode Switch Location Memory Locations and Replacement Procedures Location of Dimm and Dram Simm Memory ModulesDimm Replacement Procedure Removing the DimmInstalling the Dimm Figure B-4 Installing the DimmRemoving the Dram Simm Figure B-5 Removing Chassis CoverInstalling the Dram Simm Figure B-6 Dram Simm Connector LocationFigure B-7 Installing the Dram Simm Page Index NumericsPinout assignments console port A-6