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Enterasys Networks Table 4-1 Troubleshooting Checklist (continued) Problem Possible Cause Recommended Action

Models: 4H4202-72 4H4203-72 4H4282-49 4H4283-49 4H4284-49

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Troubleshooting Checklist

4-8 Troubleshooting

Port(s) goes into

standby for no

apparent reason.

Loop condition

detected.

Verify that Spanning Tree is enabled. Refer to the

Enterasys Matrix DFE-Gold Series Configuration

Guide for 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

(IP address, device

and module name,

etc.) were lost

when the module

power was cycled,

the front panel

OFFLINE/RESET

switch was

pressed.

Position of Mode switch

(7), Persistent Data

Reset, was changed

sometime before either

cycling power or

pressing the OFFLINE/

RESET switch, causing

the user-entered

parameters to reset to

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.

Reenter the lost parameters as necessary. Refer

to the Enterasys Matrix DFE-Gold Series

Configuration Guide for the instructions to

configure the device.

If the problem continues, contact Enterasys

Networks for technical support.

Table 4-1 Troubleshooting Checklist (continued)Problem Possible Cause Recommended Action

Contents

Main Enterasys Matrix Page Notice Regulatory Compliance Information Page Supplement to Product Instructions 50 Page Safety Information Class 1 Laser Transceivers Declaration of Conformity ENTERASYS NETWORKS, INC. FIRMWARE LICENSE AGREEMENT BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT, CAREFULLY READ THIS LICENSE AGREEMENT. Page Page Page Contents About This Guide Chapter 1: Introduction Chapter 2: Network Requirements Chapter 3: Installation Chapter 4: Troubleshooting Appendix A: Specifications Index Appendix B: Mode Switch Bank Settings and Optional Installations Figures Page About This Guide Who Should Use This Guide How to Use This Guide Related Documents Conventions Used in This Guide Thefollowingconventionsareusedinthisguide: Getting Help Introduction Overview of DFE-Gold Series Capabilities The DFE-Gold Modules 4H4282-49 4H4283-49 4H4203-72 Page The DFE-Gold Modules 37X 1-4 Introduction Figure 1-1 4H4282-49, 4H4283-49, and 4H4203-72 DFE-Gold Modules Connectivity Management Switch Configuration Using WebView Switch Configuration Using CLI Commands Standards Compatibility Secure Networks Policy Support LANVIEW Diagnostic LEDs Network Requirements 10BASE-T Network 100BASE-TX Network 100BASE-FX Fiber-Optic Network Installation Installation Site Requirement Unpacking the DFE-Gold Module Installing Optional Network Expansion Module DFE Module Placement and Installation Rules A DCB Example 1 (Figure 3-1, A) Example 2 (Figure 3-1, B) Example 3 (Figure 3-1, C) Example 4 (Figure 3-1, D) Installing Module into a Chassis Preparation Installing Module into Matrix E7 or N7 Chassis Page Installing Module into a Chassis 3-8 Installation Figure 3-2 Installing Module into MatrixE7 or N7 Chassis (Matrix E7 shown) DFE Installing Module into Matrix N1, N3, or N5 Chassis Connecting to the Network 3-10 Installation Connecting to the Network Figure 3-3 Installing Module into MatrixN3, N1, or N5 Chassis (Matrix N3 shown) FAST ENET 7C203-1 100-125V~12.0A 200-240V~6.0A 50/60 Hz Connecting UTP Cables to 4H4282-49 or 4H4202-72 Page Page Page Connecting UTP Cables to 4H4283-49 or 4H4203-72 Page Connecting to the Network DFE Matrix DFE-Gold Series Modules Hardware Installation Guide 3-17 Figure 3-10 Connection Using Optional RJ21 Angle Adapter Connecting Fiber-Optic Cables to 4H4284-49 MTRJfrontpanelconnector. Connecting to COM Port for Local Management What Is Needed Connecting to an IBM PC or Compatible Device Connecting to a VT Series Terminal Connecting to a Modem Page Adapter Wiring and Signal Assignments COM Port Adapter Wiring and Signal Diagram RJ45 DB9 VT Series Port Adapter Wiring and Signal Diagram RJ45 DB25 Completing the Installation Completing the Installation of a New System First-Time Log-In Using a Console Port Connection Completing the Installation of a DFE-Gold Module in an Existing System Logging in with an Administratively-Configured User Account Page Troubleshooting Using LANVIEW About the Management (MGMT) LED Viewing Receive/Transmit Activity on 4H4282-49, 4H4283-49, and 4H4203-72 Viewing Receive/Transmit Activity on 4H4202-72 DFE Viewing the Receive and Transmit Activity on 4H4284-49 Table 4-1 LANVIEW LEDs LED Color State Recommended Action Table 4-1 LANVIEW LEDs (continued) LED Color State Recommended Action Troubleshooting Checklist Table 4-1 Troubleshooting Checklist (continued) Problem Possible Cause Recommended Action Overview of DFE-Gold Module Shutdown Procedure Recommended Shutdown Procedure Using OFFLINE/RESET Switch Last Resort Shutdown Procedure Using OFFLINE/RESET Switch A Specifications DFE-Gold Module Specifications Table A-1 Specifications (continued) Item Specification COM Port Pinout Assignments Regulatory Compliance B Mode Switch Bank Settings and Optional Installations Required Tools Setting the Mode Switches Setting the Mode Switches Matrix DFE-Gold Series Modules Hardware Installation Guide B-3 Figure B-1 Mode Switch Location on 4H4282-49 and 4H4283-49 1X Figure B-3 Mode Switch Location on 4H4202-72 DFE 1 2 3 Figure B-4 Mode Switch Location on 4H4284-49 DFE Memory Locations and Replacement Procedures Location of DIMM and DRAM SIMM Memory Modules Memory Locations and Replacement Procedures B-6 Mode Switch Bank Settings and Optional Installations Figure B-6 DIMM and DRAM SIMM Locations (4H4203-72) DFE 1 2 3 GROUP OFFLINE / RESET DIMM Replacement Procedure (4H4282-49 and 4H4283-49) Removing the DRAM SIMM Page Page Page DRAM SIMM Replacement (4H4202-72) DIMM Replacement Procedure (All DFE Modules) Removing the DIMM Page Page Index Numerics C D E N O P R S