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Managing Multivendor Networks

Dedication

To my wife, Marlene, my children, Leanne and Sean, and my best pal, Astro.

John Enck

To my wife, Lotus, my son, Shanti, my parents, and to my cousin Marian for keeping me company over the Internet all the way from Sweden. Dan W. Blacharski

About the Authors

John Enck is a computer and networking professional with over 18 years of field experience in multivendor environments. He is the author of numerous books and articles in this field and is currently the Managing Technical Editor for Windows NT Magazine and a Senior Technical Editor for NEWS/400.

Dan W. Blacharski is a technology and business writer, novelist, and satirist with several years experience. He has written several articles and books, and currently works out of his home in Santa Cruz, California.

Acknowledgments

The authors wish to thank Elizabeth South of Que, who made this book possible; Laura Derr of Cardinal Media, who was responsible for getting the authors together in the first place; and IBM Corp., Digital Equipment Corp., Hewlett-Packard Corp., Sun Microsystems, and Fore Systems for all the information they provided.

We'd Like to Hear from You!

As part of our continuing effort to produce books of the highest possible quality, Que would like to hear your comments. To stay competitive, we really want you, as a computer book reader and user, to let us know what you like or dislike most about this book or other Que products.

You can mail comments, ideas, or suggestions for improving future editions to the address below, or send us a fax at (317) 581-4663. For the online inclined, Macmillan Computer Publishing has a forum on CompuServe (type GO QUEBOOKS at any prompt) through which our staff and authors are available for questions and comments. The address of our Internet site is http://www.mcp.com (World Wide Web).

In addition to exploring our forum, please feel free to contact me personally to discuss your opinions of this book: I'm 104521,2411 on CompuServe and ckiefer@que.mcp.com on the Internet.

Thanks in advance--your comments will help us to continue publishing the best books available on computer topics in today's market.

Carolyn Kiefer Product Development Specialist Que Corporation 201 W. 103rd Street Indianapolis, Indiana 46290 USA

Preface

The New Edition

lot has happened in the computer world since John Enck wrote the first edition of this book in 1990. The Internet has become wildly popular, which has led to the suprem-acy of TCP/IP; the mainframe is being slowly replaced (or at least augmented) by a distributed, client/server architecture; and high-speed technologies, such as ATM and FDDI, have significantly enhanced the very nature of networking.

John had three goals in writing this book:

In this edition, I have endeavored to supplant Mr. Enck's comprehensive work with information on some of the latest technologies and to cover some of the changes that have taken place in the networking industry during the past six years.

Representations Used in this Book

In order to make the text easier to understand, this book adopts several graphical representations. The following section includes examples of these representations to help you distinguish among the different elements.


ON THE WEB:This icon and format signal URL addresses for the Internet and World Wide Web of places that have related products or information, such as the Que home page at: http:\\www.quecorp.com


NOTE: Notes offer advice or general information related to the current topic. 


CAUTION: TIP: This paragraph format warns the reader of hazardous procedures (for example, using file transfer to move entire databases).


What About Sidebars?
Sidebars supplement the material in the chapter. Rather than provide specific technological information that can impact a network's manageability, sidebars offer, for example, updates on future technology and side discussions of a particular product's impact on the marketplace.


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