Nortel Networks 5399 Preparing for a Hot Swap

4-19

Chapter 4 Troubleshooting Procedures

NortelNetworks 5399 Access Switch HardwareInstallation Guide

Topr eserve the configuration parameters of the Rem oteA ccess

Concentrator module you are replacing,follow the procedures in

“Preparingfor a Hot Swap” on page 4-19 (below) and “Completing the

Hot Swap” on page 4-22.

Verifythat the backplane segment bank selector is set for the

correct segmentbank before installing a replacement module.

For moreinformation on jumper and switch settings, see

Chapter2.

Preparing for a Hot Swap

The Remote Access Concentrator can be inserted intoor removedfrom

achassis without interrupting service to other modules withinthe System

5000 hub.This a bilityis referred to as “hot swapping.”

The Remote Access Concentrator holds64KB of configuration

informationin EEPROM. This informationis periodically sent to thehost

server to be savedin a file. During a hot swap, the new Remote Access

Concentrator reads in this fileat boot time and overwritesits EEPROM

withthe configurationinformation from the Remote Access Concentrator

it is replacing. The new Remote Access Concentrator then functions as

theprevious Remote Access Concentrator, exceptfor the LAT key,which

needs to be reprogrammed.

Ifno EEPROM overwrite is desired when hot swapping,select

defaultvalues for that slot from the supervisory module on the

serviceport terminal.

Contents

Main ii Copyright 1999 Nortel Networks Trademarks Statement of Conditions USA Requirements Only European RequirementsOnly Page iv Canada Requirements Only FCC Part 68 Compliance Statement vi Nortel Networks NA Inc. Softw are License Agreement Page viii Contents Chapter1 Introduction Chapter2 Installingthe Model 5399 Remote Access Concentrator Module Chapter3 ROM MonitorCommands Page Figures Page Tabl es Page Preface Before YouBegin Text Conventions Hard-Copy TechnicalManuals How to Get Help Page Page Model 5399 Description Module Features System 5000 Common Management Bus System 5000 Backplane Ethernet Segment Banks System 5000 Service Port Management Firmware and Software Page Front Panel Nortel Networks 5399 Access Switch Hardware Installation Guide Chapter1 Introduction 1-8 Figure1-3. Model 5399 Remote Access Concentrator Front Panel Front Panel Components Annunciator The Annunciator backlights the model number of the module and Page Page Page Physical Characteristics Page Page Chapter 2 Installing the Model 5399 Remote Access Concentrator Module T Before you Begin Page Installing the Model 5399 Remote Access Concentrator Preparing for Hardware Installation Setting the Backplane Ethernet Segment Page Page Installing the Module into the Hub Page Page Page Testing the Installation LED Indicators Connecting a WAN Interface Page Connecting a Service Port Terminal Connecting the Terminal Page Initial Setup and Using the ROM Monitor Remote Access Concentrator Parameters Initializing the Remote Access Concentrator Page Page Page Booting the Remote Access Concentrator Auto-initializing the IP Address Parameters Page Page Manually Initializing the IP Address Parameters Booting Using BFS Page Booting Using TFTP 3. Issue the followingcommands to prepare the tftp dump file. 4. Enter the bootcommand. The boot command displaylooks similar to this: and the following message is displayed: Self-booting the Remote Access Concentrator Booting from a Windows NTHost Booting from Another Model 5399 Remote Access Concentrator Installing the Operational Software and Loading the Image Installing to and Loading from a UNIX Host Invoking the Console Monitor Chapter 3 ROM Monitor Commands T Command Descriptions Page addr The addr command display looks similar to this: The addr -d command display looks similar to this: Page Page boot Page Thestatus word ! ~XXXX~, where XXXX arefour hexadecimal digits, decodes as follows: The lowest nibble(bits 3 to 0) are a count of collisions during this transmission. For example: The boot command display (using bfs) looks similar to this: The next exampleshows a self boot. Page 3-13 Chapter 3 ROMMo nitor Commands NortelNetworks 5399 Access Switch HardwareInstallation Guide config erase Page image lat_key net ping ports sequence Page stats Page Page Chapter 4 TroubleshootingProcedures T Front Panel Alarms and LED Indicators Page Page Power-up and Boot Procedures Page Page Boot Failures Boot Error Report Page Correcting Remote Access Concentrator Parameters Load Server Host Not Responding Page Page Page Remote Access Concentrator Dumps Page Conditions for Replacing a Module Module Configuration Management Page Preparing for a Hot Swap Page Removing a Module Completing the Hot Swap Appendix A Port Pins and Signals T WAN Interface Ports 1 8 Page Appendix B Modem Upgrade Instructions T Contents of the Kit Required Tools Module Removal Instructions Modem Card Installatio n Instructions Page Removing Modem Cards Page Index A B C D I L M N O R S T U V W