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Network Warrior [Paperback]

Gary A. Donahue
4.5 out of 5 stars  See all reviews (8 customer reviews)

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Book Description

1 July 2007 0596101511 978-0596101510 1

Written by networking veteran with 20 years of experience, Network Warrior provides a thorough and practical introduction to the entire network infrastructure, from cabling to the routers. What you need to learn to pass a Cisco certification exam such as CCNA and what you need to know to survive in the real world are two very different things. The strategies that this book offers weren 't on the exam, but they 're exactly what you need to do your job well.

Network Warrior takes you step by step through the world of hubs, switches, firewalls, and more, including ways to troubleshoot a congested network, and when to upgrade and why. Along the way, you 'll gain an historical perspective of various networking features, such as the way Ethernet evolved. Based on the author 's own experience as well as those he worked for and with, Network Warrior is a Cisco-centric book, focused primarily on the TCP/IP protocol and Ethernet networks -- the realm that Cisco Systems now dominates. The book covers:

The type of networks now in use, from LANs, WANs and MANs to CANs

  • The OSI Model and the layers involved in sending data
  • Hubs, repeaters, switches, and trunks in practice
  • Auto negotiation and why it 's a common problem in network slowdowns
  • Route maps, routing protocols, and switching algorithms in Cisco routers
  • The resilient Ethernet -- how to make things truly redundant
  • Cisco 6500 multi-layer switches and the Catalyst 3750 switch
  • Telecom nomenclature -- why it 's different from the data world
  • T1 and DS3
  • Firewall theory, designing access lists, authentication in Cisco devices
  • Server load balancing technology
  • Content switch module in action
  • Designing QOS and what QOS does not do
  • IP design and subnetting made easy

The book also explains how to sell your ideas to management, how networks become a mess as a company grows, and why change control is your friend. Network Warrior will help network administrators and engineers win the complex battles they face every day.

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Product details

  • Paperback: 600 pages
  • Publisher: O'Reilly Media; 1 edition (1 July 2007)
  • Language: English
  • ISBN-10: 0596101511
  • ISBN-13: 978-0596101510
  • Product Dimensions: 3.4 x 17.5 x 23.1 cm
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (8 customer reviews)
  • Amazon Bestsellers Rank: 355,218 in Books (See Top 100 in Books)
  • See Complete Table of Contents

More About the Author

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Product Description


This is a great book for people just getting into the industry, with their CCNA or without. 9/10
-- Sean Walberg, Slashdot, August 2007

About the Author

Gary A. Donahue is a working consultant who has been in the computer industry for 25 years. Gary has worked as a programmer, mainframe administrator, Technical Assistance Center engineer, network administrator, network designer, and consultant. Gary has worked as the Director of Network Infrastructure for a national consulting company and has been the president of his own New Jersey consulting company; GAD Technologies.

Inside This Book (Learn More)
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Front Cover | Copyright | Table of Contents | Excerpt | Index | Back Cover
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Customer Reviews

4.5 out of 5 stars
4.5 out of 5 stars
Most Helpful Customer Reviews
16 of 16 people found the following review helpful
5.0 out of 5 stars The best network book I ever read! 5 Dec 2007
A very useful guide to anyone who have to deal with computer networks or manage network devices. It isn't for inexperieced users, but I recommend it to everyone who would like to know more details about networks to become more familiar with it.
The book is aimed from the same idea suggested by Gary Donahue in managing networks: a network might be very hard to manage and understand as it size increase. So, the best thing you can do is trying to keep everything as simplest as possible.
The result is a good reference book, well written and easy to read and understand. Figures too are very clear and well explained. It contains a lot of useful suggestion on how to administrate a network and about all the activities related to it (e.g. PART VIII, "Designing Networks": Chapter 34 about "IP Design" it's AMAZING!).
Also, the book is well organized, because each one of eight parts that compose the book is splitted in few chapters well focussed on a single topic. This made the book easy to use if you are looking for a specific subject.
I'm studying about Network Security, so I appreciated very much Section V - "Security and Firewalls". Above all, Chapter 25 contains a very clear explanation about DeMilitarized Zone supplied with a lot of figures (the book contains too some suggestions to draw network schemes).
I never found a network book good like this so I wish you have to put it in your library!
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7 of 7 people found the following review helpful
4.0 out of 5 stars A handy all-round coverage 11 Sep 2009
Format:Paperback|Verified Purchase
This book is a very useful thing to have to hand for when your mind goes blank on the basics of something you don't use every day, but also for an overview of something usually neglected in such works: the business liason side of being an IT professional.

It's very Cisco orientated, but that's no surprise, given Cisco's market penetration, nor is it a terribly bad thing...I suppose it just reflects the way the world is. The only time it really grated on me was regards firewalls and server load balancers, since Cisco's offerings in these spaces suck like a Dyson on steroids (Mr. Donohue's praise for the late, unlamented Local Director series, for example, is very puzzling to me - but each to their own, I guess). However, it would have been nice for it to be a bit more platform-agnostic, I think. Also, BGP gets no more than a passing nod, really, and for that critically important protocol to be dismissed with what boils down to "Well, you probably won't need to config BGP unless you work for an ISP" is a bit weak.

Apart from that, pretty good.
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2 of 2 people found the following review helpful
4.0 out of 5 stars Very well written-good book 20 July 2009
Format:Paperback|Verified Purchase
Excellant book, very 'tight' and to the point. Certainly much more concise than the Sybex/Cisco press books that you might be used to. A very useful real-world guide.
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3.0 out of 5 stars AVERAGE 13 May 2014
By Thomson
Format:Paperback|Verified Purchase
It was RECOMMENDED to me to purchase this book from a colleague okay it is the newer version that he recommended. This book is okay for the price i guess. But I would not buy it again, if I lost it.
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