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Troubleshooting Guide 2-1

CHAPTER 2

TROUBLESHOOTING GUIDELINES

This chapter provides guidelines on what to do when someone suspects that there is a problem with the

network. The guidelines in this chapter are from a system manager’s viewpoint and cover the following items:

• Problem identiﬁcation and notiﬁcation

• Problem veriﬁcation and information gathering

• Theory development

• Theory testing

Figure 2-1 and Figure 2-2 provide ﬂowcharts of the troubleshooting process to isolate a network problem

down to one of the categories covered in Chapters 3 through 9. Details are contained in the sections referred to

in the ﬂowcharts.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 113 114

QUICK REFERENCE GUIDE 1
FOR NETWORK 1
TROUBLESHOOTING 1
Troubleshooting Guide i 3
CONTENTS 5
Contents 6
CHAPTER 1 7
INTRODUCTION 7
1.2 Structure of This Guide 8
1.3 Document Conventions 9
Chapter 1: Introduction 10
1-4 Troubleshooting Guide 10
CHAPTER 2 11
TROUBLESHOOTING GUIDELINES 11
2-2 Troubleshooting Guide 12
Troubleshooting Guide 2-3 13
2-4 Troubleshooting Guide 14
Troubleshooting Guide 2-5 15
2.6 Isolate the Problem 16
Troubleshooting Guide 2-7 17
2-8 Troubleshooting Guide 18
CHAPTER 3 19
3.1.1.1 Netmanage 20
Troubleshooting Guide 3-3 21
3.1.1.2 TFTP for MSTCPIP 22
Troubleshooting Guide 3-5 23
3-6 Troubleshooting Guide 24
Troubleshooting Guide 3-7 25
3-8 Troubleshooting Guide 26
Troubleshooting Guide 3-9 27
3-10 Troubleshooting Guide 28
Troubleshooting Guide 3-11 29
3-12 Troubleshooting Guide 30
Troubleshooting Guide 3-13 31
3-14 Troubleshooting Guide 32
Troubleshooting Guide 3-15 33
3-16 Troubleshooting Guide 34
Troubleshooting Guide 3-17 35
3-18 Troubleshooting Guide 36
CHAPTER 4 37
4-2 Troubleshooting Guide 38
Troubleshooting Guide 4-3 39
4-4 Troubleshooting Guide 40
Troubleshooting Guide 4-5 41
4-6 Troubleshooting Guide 42
CHAPTER 5 43
ROUTING PROBLEMS 43
Chapter 5: Routing Problems 44
5-2 Troubleshooting Guide 44
Troubleshooting Guide 5-3 45
5-4 Troubleshooting Guide 46
Troubleshooting Guide 5-5 47
5-6 Troubleshooting Guide 48
Troubleshooting Guide 5-7 49
5-8 Troubleshooting Guide 50
Troubleshooting Guide 5-9 51
5-10 Troubleshooting Guide 52
Troubleshooting Guide 5-11 53
5-12 Troubleshooting Guide 54
CHAPTER 6 55
FDDI PROBLEMS 55
Chapter 6: FDDI Problems 56
6-2 Troubleshooting Guide 56
Troubleshooting Guide 6-3 57
6-4 Troubleshooting Guide 58
Troubleshooting Guide 6-5 59
6-6 Troubleshooting Guide 60
Troubleshooting Guide 6-7 61
6-8 Troubleshooting Guide 62
CHAPTER 7 63
ETHERNET PROBLEMS 63
Chapter 7: Ethernet Problems 64
7-2 Troubleshooting Guide 64
Troubleshooting Guide 7-3 65
7-4 Troubleshooting Guide 66
Troubleshooting Guide 7-5 67
Powered Down 68
Troubleshooting Guide 7-7 69
7-8 Troubleshooting Guide 70
CHAPTER 8 71
TERMINAL SERVER PROBLEMS 71
8.1 No monitor: Prompt 72
Troubleshooting Guide 8-3 73
8-4 Troubleshooting Guide 74
Troubleshooting Guide 8-5 75
8-6 Troubleshooting Guide 76
Troubleshooting Guide 8-7 77
8-8 Troubleshooting Guide 78
Troubleshooting Guide 8-9 79
8-10 Troubleshooting Guide 80
8.5 Printer Is Not Printing 81
Software Not Working 82
CSMIM2 Network 83
Administrator’s Guide 83
8-14 Troubleshooting Guide 84
Troubleshooting Guide 8-15 85
8-16 Troubleshooting Guide 86
Troubleshooting Guide 8-17 87
8-18 Troubleshooting Guide 88
Troubleshooting Guide 8-19 89
8-20 Troubleshooting Guide 90
Troubleshooting Guide 8-21 91
8-22 Troubleshooting Guide 92
Troubleshooting Guide 8-23 93
8-24 Troubleshooting Guide 94
Troubleshooting Guide 8-25 95
8-26 Troubleshooting Guide 96
CHAPTER 9 97
TOKEN RING PROBLEMS 97
Poll Its Replacement TRMM 98
Troubleshooting Guide 9-3 99
9-4 Troubleshooting Guide 100
Troubleshooting Guide 9-5 101
9-6 Troubleshooting Guide 102
Troubleshooting Guide 9-7 103
Eagle Insertion Error, Type 7 104
Troubleshooting Guide 9-9 105
Environment (IPX) 106
Troubleshooting Guide 9-11 107
9-12 Troubleshooting Guide 108
APPENDIX A 109
A-2 Troubleshooting Guide 110
Troubleshooting Guide A-3 111
A-4 Troubleshooting Guide 112
APPENDIX B 113
GETTING ADDITIONAL HELP 113
B-2 Troubleshooting Guide 114

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