Enterasys Networks 4H4285-49, 6H308-48, 9033989-06 guide

Troubleshooting Checklist

	Table 4-2 Troubleshooting Checklist		(continued)

	Problem	Possible Cause	Recommended Action

	Port(s) goes into	Loop condition	Verify that Spanning Tree is enabled. Refer to the
	standby for no	detected.	Matrix DFE-Gold Series Configuration Guide for
	apparent reason.		the instructions to set the type of STA.
			Review the network design and delete
			unnecessary loops.
			If the problem continues, contact Enterasys
			Networks for technical support.

	User parameters	Position of Mode switch	Reenter the lost parameters as necessary. Refer
	(IP address, device	(7), Persistent Data	to the Matrix DFE-Gold Series Configuration
	and module name,	Reset, was changed	Guide for the instructions to configure the device.
	and so forth) were	sometime before either	If the problem continues, contact Enterasys
	lost when the	cycling power or	If the problem continues, contact Enterasys
	lost when the	cycling power or	Networks for technical support.
	module power was	pressing the OFFLINE/	Networks for technical support.
	module power was	pressing the OFFLINE/
	cycled, the front	RESET switch, causing
	panel OFFLINE/	the user-entered
	RESET switch was	parameters to reset to
	pressed.	factory default settings.

Clear Persistent Data was set through Local Management.

The module was moved either from slot-to-slot or from chassis-to- chassis.

4-8 Troubleshooting

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Enterasys Networks 4H4285-49, 6H308-48, 9033989-06 manual Matrix DFE-Gold Series Configuration Guide for

Contents

Enterasys Matrix Page Page Regulatory Compliance Information Electromagnetic Compatibility EMC Supplement to Product Instructions Vcci Notice Safety Information Class 1 Laser Transceivers Enterasys NETWORKS, INC. Firmware License Agreement Viii Page Page Contents Troubleshooting Appendix a SpecificationsAppendix B Mode Switch Settings and Option Installations Appendix C About PoE Power over Ethernet Figures Tables Xiv Who Should Use This Guide About This GuideImportant Notice Related Documents How to Use This GuideFor Refer to Conventions Used in This Guide Following conventions are used in this guide Getting Help Introduction For information about Refer to DFE-Gold Module Overview of DFE-Gold PoE Module Capabilities4H4285-49 DFE-Gold Module 4H4285-49 DFE-Gold Module Switch Configuration Using WebView Switch Configuration Using CLI CommandsConnectivity Management Lanview Diagnostic LEDs Standards Compatibility Network Requirements Link Aggregation 10BASE-T Network 100BASE-TX Network Installation Contents of DFE Module Carton Quantity Installation Site RequirementUnpacking the DFE Module Installing Optional Network Expansion Module NEM DFE Module Placement and Installation Rules Example 1 -1, a Example 3 -1, C Preparing to Install the 4H4285-49 Installing 4H4285-49 into a Matrix E7 or N7 Chassis Preparing to Install the 4H4285-49 Card guides Installing 4H4285-49 into Matrix N3 or N5 Chassis Card guides Connecting 48 Vdc Power for PoE Operation Connecting UTP Cables to 4H4285-49 Connecting to the NetworkMaking the UTP Connections Connecting a Twisted Pair Segment with RJ45 Connector RX+ TX+ RX+ Verifying PoE Port Status What Is Needed Connecting to COM Port for Local ManagementConnecting to an IBM PC or Compatible Device Connecting to a VT Series Terminal Parameter Setting 10 Connecting a VT Series Terminal Connecting to a Modem 11 Connecting Using a Modem Adapter Wiring and Signal Assignments COM Port Adapter Wiring and Signal Diagram RJ45VT Series Port Adapter Wiring and Signal Diagram RJ45 DB25 Completing the Installation of a New System Completing the InstallationModem Port Adapter Wiring and Signal Diagram RJ45 DB25 First-Time Log-In Using a Console Port Connection 12 Matrix Defogged Startup Screen Example N7 Chassis Logging in with an Administratively-Configured User Account Enter Completing the Installation Using Lanview TroubleshootingAbout the Management Mgmt LED Viewing Receive/Transmit Activity Lanview LEDs Viewing the PoE Port Status Color State Recommended Action Alternately 67% on, 33% LED RX/TX Troubleshooting Checklist Refer to the Matrix DFE-Gold Series Configuration Matrix DFE-Gold Series Configuration Guide for Overview of DFE Module Shutdown Procedure OFFLINE/RESET Switch Recommended Shutdown Procedure Using OFFLINE/RESET Switch Last Resort Shutdown Procedure Using OFFLINE/RESET Switch 4H4285-49 Specifications SpecificationsTable A-1 4H4285-49 Specifications Table A-1 4H4285-49 Specifications ItemSpecification Processors/Memory Table A-2 COM Port Pin Assignments Signal Name Input/Output COM Port Pinout AssignmentsRegulatory Compliance Table A-3 Compliance Standards Regulatory Compliance Regulatory Compliance Specifications Mode Switch Settings and Option Installations Required Tools Setting the Mode Switches Memory Locations and Replacement Procedures Memory Locations and Replacement Procedures Gaining Access to Memory Modules Gaining Access to Memory Modules Removing the Safety Cover Figure B-3 Removing the Safety Cover Dram Simm Replacement Procedure Removing the Network Expansion Module NEM Removing the Dram Simm Figure B-5 Removing the Existing Dram Simm Installing the Dram Simm Figure B-6 Installing the Dram Simm Dimm Replacement Procedure Removing the Dimm Installing the Dimm Figure B-8 Installing the Dimm Reinstalling the Optional Network Expansion Module Figure B-9 Installing the Network Expansion Module Reinstalling the Safety Cover Figure B-10 Installing the Safety Cover About PoE Power over Ethernet Overview Power Interface Proprietary PD DetectionMatrix N5 Backplane 48 Vdc Interface Front Panel 48 Vdc Interface PoE Port Status LEDs Table C-2 PoE Status LED Indications PoE Port Status PoE Port Status LEDs About PoE Power over Ethernet Index Numerics Pinout assignments console port A-3