Digital Equipment DECserver 300 Foglio di istruzioni

DECserver 300

Problem Solving

June 1989

Thismanualdescribesproblemsolvingtools andproceduresfor

the DECserver 300 terminal server. Itis intended forthe server

manager.

Supersession/Update Information: This is a new manual.

Software Version: DECserver 300

Vl.0

This manual applies

Version 1.0

DECserver 300 and all

subsequentmaintenance releases up tothe next majorproduct

release.

Order Number: AA-NE42A-TE

AA-NE42A-TE

June 1989

Theinformation inthisdocumentissubjecttochangewithoutnoticeand shouldnotbe construedas a

commitmentby Digital EquipmentCorporation. Digital EquipmentCorporation assumes no respon-

sibility for any errors that may appear in this document.

Thesoftwaredescribedin thisdocumentisfurnished underalicense andmayonlybe used or copied

in accordance with the terms of such license.

Noresponsibilityis assumedforthe use orreliability

software on equipmentthat

notsupplied by

Digital or its affiliated companies.

Printed in U.S.A.

The following are trademarks of Digital Equipment Corporation:

DEBNA DESVA

DEBNET DEUNA

DEC

~D~DDmDr"

DECconnect LAN Bridge

DECnet LA120

DECserver

LN01

DECUS LN03

DELNI LQP02

DELUA MASSBUS

DELQA Micro/RSX

DEMPR MicroVAX

DEQNA PDP

DESOA Professional

Q-Bus

Rainbow

RSX

RSX-11

M-PLUS

ThinWire

ULTRIX-32

UNIBUS

VAX

VAXcluster

VAXmate

VAXstation

VMS

This manual was produced by Networks and Communications Publications.

Contents

Preface

1 Introduction

DECserver 300 Problem Solving

2 Troubleshooting Tools

2.1

2.2

2.3

2.4

2.4.1

2.4.2

2.5

2.5.1

2.5.2

2.5.3

The Console Port

...................................

The DECserver 300 Self-Test

..........................

Types

Errors -Fatal and Non-Fatal

..................

The Seven-Segment Status Display

.....................

Diagnostic Status and Error Codes

....................

Server Software Status Codes

.......................

DECserver 300

TEST

Commands

......................

The TEST SERVICE Command

.....................

The

TEST

PORT Command

.........................

The

TEST

LOOP Command

........................

3 What to

First

2-1

2-2

2-4

2-6

2-8

2-9

iii

4 Problems

All

Ports

4.1 Status Display Is

Off-No

Voltage

..................

4-1

4.2 Diagnostic

Dot

Off

-Fatal Error

Test

Progress

......

4-2

4.3 Diagnostic

Dot

Blinking (Non-Fatal Error)

................

4-2

4.3.1 Error Messages 920 and 921

.........................

4-3

4.3.2 Error Message 922 and 923

..........................

4-3

4.3.3 Error Messages 930 and 931

.........................

4--4

4.3.4 Error Messages 935 and 936

.........................

4--4

4.3.5 Error Messages 925 and 926

.........................

4-5

4.3.6 Error Messages 941, 942, 950, and 952 -Code 9

Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5

4.4 Insufficient Memory Resources

.........................

4-8

4.5 No Console Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9

4.6 Down-Line Loading Problems -Code 3

the

Status

Display.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-10

4.6.1 Down-Line Load Starts,

Then

Fails.

. . . . . . . .

. . . . .

4-10

4.6.2 Down-Line

Load

Does Not

Start.

. . . . . . . . . . . . . . . . .

4-12

4.7 Message Number 913

Appears.

. . . . . . . . . . . . . . .

. . . .

....

4-16

4.8 Server Port

PortDevice Hardward

Problems.

. . . . . . . . . .

4-18

5 Problems with Individual Port Devices

5.1

Check These Things

First.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1

5.2

Interactive Terminal Is Not Working

..................

5-3

5.3 A PC File Transfer

Fails.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

5.4 A Line Printer Fails

a Remote-Access Port

5-8

6 Problems with Service Nodes

6.1

Message Timing Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-2

6.2 LAT Protocol Errors

..................................

6-3

6.3 Authorized Groups Mismatch . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-4

6.4 Server Capacity Exceeded

.............................

6-4

6.5 Service Node Software Not Rwming

.....................

6-5

6.6 Service Node Not Available

............................

6-5

7 Problems with the Ethernet

8 Digital Equipment Corporation Service

8.1

Before

You

Contact Digital Equipment

Corporation.

. . . . . . . . 8-1

8.2 Repackaging a DECserver for Shipping . . . . . . . . . . . . . . . . . . .

8-2

8.3 Forwarding Up-Line Dump Data

........................

8-2

Index

Figures

1-1 Network Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-2

Composition

Network Components . . . . . . . . . . . . . . . . . . . .

1-2

2-1 DECserver 300 Seven-Segment Status Display. . . . . . . . . . . . .

2-3

Tables

2-1 Self-Test Diagnostics Status and Error Codes

..............

2-5

2-2

Server Software Status Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6

5-1

Port Device Problem -Check These Things First

..........

5-1

5-2

Port Device Problem -Check These Things First

...........

5-2

Preface

DECserver

300

ProblemSolving describes how to troubleshoot the DECserver 300

system softwareandhardware. Themanual also describes the troubleshooting tools

and their use.

Intended Audience

The manual is intended mainly for the server manager, but also Digital Equipment

Corporation training, field service, and manufacturing personnel. Knowledge

Ethernet local area networks is a prerequisitefor using the manual effectively.

Document Structure

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Briefly introduces DECserver 300 problem solving.

Describes the troubleshooting tools and the hardware and

software features that are useful for troubleshooting.

Describes the initial steps to take when you see a problem.

Describes how to troubleshoot problems that involve all the

server ports.

Describes how to troubleshoot problems that affect one or

more, but not all, ports and port devices.

Describes problems involving communication with service

nodes on the Ethernet.

Describes problems on the Ethernet interface.

Describes how to use Digital Equipment Corporation main-

tenance services.

vii

Graphic

Conventions

Used

This

Guide

viii

use this manual effectively, familiarize yourselfwith the conventions discussed

below.

The

following conventions apply to numbers:

• All numbers are decimal unless otherwise noted.

• All ethemetaddresses are given in hexadecimal.

Convention

Special

type

Red

type

UPPERCASE

Meaning

This special type in examples indicates system output

user

input.

Red type

examples indicates user input.

Uppercase letters

command lines indicate keywords that

must

entered. You canenter them in either uppercase

lowercase.; You

can

abbreviate command keywords to the

fust three characters

the minimum unique abbreviation.

lowercase italics Lowercase italics in command syntax

examples indicate

variables for which either the user

the system supplies a

value.

I Key Indicates that you press the specified key.

CTRUx

Indicates that you should hold the CONTROL key down and

press the key specified by the

The

server displays the key

combination as AX.

/ This indicates related alternative commands oroptions.

For

example, SET/DEFINE PORT refers to the SET PORT and!

DEFINEPORT command(s).

Introduction to DECserver 300 Problem

Solving

Problem solving,

troubleshooting,

the

DEC

server 300unit involves isolating

server problems from port device or network problems.

A problem

can

derivefrom afailure in one

thefive networkcomponents shown

Figure 1-1. Eachnetworkcomponentis broken down into its parts as shown in Fig-

ure 1-2.

Figure 1-2, hardware devices are represented by solid-line rectangles.

Software is represented by rectangles outlined with dashed-line rectangles.

Someexternalcomponents andparts arecustomer-replaceable,but most parts must

replaced

a qualified Digital Equipment Corporation service representative.

Figure 1-1: Network Components

PORT

DEVICE

DECserver

300

ETHERNET

SERVICE

NODE

DECnet

LOAD

HOST

NODE

LKG-2890-89

1-1

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