Network Maintenance and Troubleshooting Guide: Field Tested Solutions for Everyday Problems

577 Pages·2009·20.539 MB·English

by  Neal Allen

Praise for Neal Allen’s Network Maintenance and Troubleshooting Guide
“This is one of the most informative and easy to learn books on networking basics and troubleshooting
techniques. A must read for all new associates to the field of Networking.”
—Javier Garcia, CCNA
“I can best summarize this book by quoting Arnold Glascow: ‘Success is simple. Do what’s right, the
right way, at the right time.’”
—Heriberto Rebollo, Network Analyst
“The new version of the Guide brings hard-to-gather theory to bear on issues of practical importance.”
—Dennis C. Frezzo, Ph.D.
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Network Maintenance and
Troubleshooting Guide
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Network Maintenance and
Troubleshooting Guide
Field-Tested Solutions for
Everyday Problems
Second Editon
Neal Allen
Upper Saddle River, NJ • Boston • Indianapolis • San Francisco
New York • Toronto • Montreal • London • Munich • Paris • Madrid
Cape Town • Sydney • Tokyo • Singapore • Mexico City
v
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ISBN-13: 978-0-321-64741-2
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Contents at a Glance
Introduction ..............................................................Introduction-1
Chapter 1: Using the OSI Model ................................................ 1-1
Chapter 2: Copper Media .........................................................2-1
Chapter 3: Fiber-Optic Media ...................................................3-1
Chapter 4: Media Access Control Layer ..................................4-1
Chapter 5: Data Link Layer .......................................................5-1
Chapter 6: Network Layer ........................................................6-1
Chapter 7: Transport Layer ......................................................7-1
Chapter 8: Preventing Problems ..............................................8-1
Chapter 9: Troubleshooting ......................................................9-1
Chapter 10: Troubleshooting Media ........................................10-1
Chapter 11: Network Troubleshooting .....................................11-1
Appendix A: Copper Test Failure Cause Tables .......................A-1
Appendix B: Waveform Decoding Exercise .............................B-1
Appendix C: Auto-Negotiation ..................................................C-1
Appendix D: Discovering Device Behavior ...............................D-1
Appendix E: Techniques for Troubleshooting Switches ..........E-1
Appendix F: Simple Network Management Protocol ............... F-1
Appendix G: Troubleshooting with a Protocol Analyzer ..........G-1
Appendix H: Network Diagnostic Products
Used in This Book ................................................................H-1
Appendix I: Answers to Chapter Review Questions ................. I-1
Index: ..................................................................................Index-1
viii
Contents
Introduction ...................................................................................1
Boundaries............................................................................................................2
Media Standards Development .............................................................................2
Terms ....................................................................................................................2
Physical Layer .....................................................................................................................3
Media Access Control (MAC) Layer Within the Data Link Layer ..................................3
Logical Link Control (LLC) Layer Within the Data Link Layer ......................................3
Network Layer ....................................................................................................................3
Transport Layer ..................................................................................................................3
Help Desk ............................................................................................................................4
Network Technician ...........................................................................................................4
Network Engineer ..............................................................................................................4
Network Manager ...............................................................................................................4
Organization .........................................................................................................4
Technical Details ..................................................................................................5
Conventions Used in This Book ............................................................................6
Supplemental Materials ........................................................................................6
Chapter 1 : Using the OSI Model ................................................1-1
Quick Tour of the OSI Model .............................................................................1-2
Seven Layers of the OSI Model .........................................................................1-3
Layer 7: Application Layer ............................................................................................1-3
Layer 6: Presentation Layer ..........................................................................................1-3
Layer 5: Session Layer...................................................................................................1-4
Layer 4: Transport Layer ...............................................................................................1-4
Layer 3: Network Layer .................................................................................................1-4
Layer 2: Data Link Layer ...............................................................................................1-5
Layer 1: Physical Layer .................................................................................................1-5
Networking Devices and the OSI Model............................................................1-5
Repeaters.........................................................................................................................1-5
Bridges .............................................................................................................................1-6
Routers .............................................................................................................................1-7
ix