800 East 96th Street Indianapolis, Indiana 46240 USA Cisco Press CCNP Self-Study CCNP BCMSN Official Exam Certification Guide Fourth Edition David Hucaby CCIE No. 4594 1712xbook.fm Page i Thursday, November 16, 2006 7:37 AM ii CCNP Self-Study: CCNP BCMSN Official Exam Certification Guide, Fourth Edition David Hucaby Copyright © 2007 Cisco Systems, Inc. Published by: Cisco Press 800 East 96th Street Indianapolis, IN 46240 USA All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission from the pub- lisher, except for the inclusion of brief quotations in a review. Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 First Printing December 2006 Library of Congress Cataloging-in-Publication Number: 2006924484 ISBN: 1-58720-171-2 Warning and Disclaimer This book is designed to provide information about selected topics for the Building Converged Cisco Multilayer Switched Networks (BCMSN) exam for the CCNP certification. Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. The information is provided on an “as is” basis. The authors, Cisco Press, and Cisco Systems, Inc. shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the discs or programs that may accompany it. The opinions expressed in this book belong to the author and are not necessarily those of Cisco Systems, Inc. Trademark Acknowledgments All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Cisco Press or Cisco Systems, Inc. cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. Corporate and Government Sales Cisco Press offers excellent discounts on this book when ordered in quantity for bulk purchases or special sales. For more information, please contact: U.S. Corporate and Government Sales 1-800-382-3419 corpsales@pearsontechgroup.com For sales outside of the U.S. please contact: International Sales 1-317-581-3793 international@pearsontechgroup.com The Cisco Press self-study book series is as described, intended for self-study. It has not been designed for use in a classroom environment. Only Cisco Learning Partners displaying the following logos are authorized providers of Cisco curriculum. If you are using this book within the classroom of a training company that does not carry one of these logos, then you are not preparing with a Cisco trained and authorized provider. For information on Cisco Learning Partners please visit:www.cisco.com/go/authorizedtraining. To provide Cisco with any information about what you may believe is unauthorized use of Cisco trademarks or copyrighted training material, please visit: http://www.cisco.com/logo/infringement.html. 1712xbook.fm Page ii Thursday, November 16, 2006 7:37 AM iii Feedback Information At Cisco Press, our goal is to create in-depth technical books of the highest quality and value. Each book is crafted with care and pre- cision, undergoing rigorous development that involves the unique expertise of members from the professional technical community. Readers’ feedback is a natural continuation of this process. If you have any comments regarding how we could improve the quality of this book, or otherwise alter it to better suit your needs, you can contact us through email at feedback@ciscopress.com. Please make sure to include the book title and ISBN in your message. We greatly appreciate your assistance. Publisher: Paul Boger Cisco Press Program Manager: Jeff Brady Executive Editor: Mary Beth Ray Cisco Representative: Anthony Wolfenden Managing Editor: Patrick Kanouse Technical Editors: Wayne Lewis, John Tiso Senior Development Editor: Christopher Cleveland Compositor: ICC Macmillan Inc. Project Editor: Tonya Simpson Book and Cover Designer: Louisa Adair Team Coordinator: Vanessa Evans Indexer: Tim Wright 1712xbook.fm Page iii Thursday, November 16, 2006 7:37 AM iv About the Author David Hucaby, CCIE No. 4594, is a lead network engineer for the University of Kentucky, where he works with healthcare networks based on the Cisco Catalyst, ASA, FWSM, and VPN product lines. David has a bachelor of science degree and master of science degree in electrical engineering from the University of Kentucky. He is the author of three previous books for Cisco Press, including Cisco ASA and PIX Firewall Handbook , Cisco Field Manual: Router Configuration , and Cisco Field Manual: Catalyst Switch Configuration . David lives in Kentucky with his wife, Marci, and two daughters. 1712xbook.fm Page iv Thursday, November 16, 2006 7:37 AM v About the Technical Reviewers John Tiso, CCIE No. 5162, MCSE, CCDP, holds a bachelor of science degree from Adelphi University in New York. He currently serves as a customer support engineer in the Cisco Heartland TAC. Before joining the team at Cisco, John was the lead AVVID consultant and installer for a Cisco Gold Partner. John has written and edited for Cisco Press for many years. He has also published papers in several industry publications and coauthored a book for Cisco Learning Systems. John is also a speaker at the Cisco Networkers and CIPTUG conferences. Wayne Lewis, Ph.D., is the Cisco Academy Manager for the Pacific Center for Advanced Technology Training, based at Honolulu Community College. Since 1998, he has taught routing and switching, remote access, troubleshooting, network security, and wireless networking to instructors from universities, colleges, and high schools in Australia, Canada, Mexico, Central America, South America, China, Hong Kong, Indonesia, Korea, Singapore, Taiwan, and Japan, both onsite and at Honolulu Community College. Cisco Systems has sent Wayne to several countries to conduct inaugural Networking Academy teacher training sessions in networking to certify the initial cohorts of instructors for these countries. Before teaching networking, Wayne began teaching math at age 20 at Wichita State University, followed by the University of Hawaii and Honolulu Community College. In 1992, he received a Ph.D. in math, specializing in finite rank torsion-free modules over a Dedekind domain. He works as a contractor for Cisco Systems, performing project management for the development of network security and multilayer switching curriculum. He enjoys surfing the South Shore of Oahu in the summer and surfing big waves on the North Shore of Oahu in the winter. 1712xbook.fm Page v Thursday, November 16, 2006 7:37 AM vi Dedications As always, this book is dedicated to the most important people in my life: my wife, Marci, and my two little daughters, Lauren and Kara. Their love, encouragement, and support carry me along. I’m so grateful to God, who gives endurance and encouragement (Romans 15:5), and has allowed me to work on projects like this. I would also like to dedicate this book to the memory of two close relatives whom I’ve lost this year: Ralph Hucaby, my uncle, a fellow EE, and a pioneer in the television industry, who always had an interest in my technical pursuits for as long as I can remember. Phyllis Wilson, my mother in-law, who never owned a computer or touched a network, yet was genuinely interested in my writing projects. Her friendship and good cooking will always be missed. 1712xbook.fm Page vi Thursday, November 16, 2006 7:37 AM vii Acknowledgments It has been my great pleasure to work on another Cisco Press project. I enjoy the networking field very much, and technical writing even more. And more than that, I’m thankful for the joy and inner peace that Jesus Christ gives, making everything more abundant. Technical writing may be hard work, but I’m finding that it’s also quite fun because I’m working with very good friends. I can’t say enough good things about Chris Cleveland. Somehow Chris is able to handle many book projects all at once, while giving each one an incredible amount of attention and improvement. Brett Bartow and Mary Beth Ray have been very helpful, as always, with their management of the book project. I am very grateful for the insight, suggestions, and helpful comments that Wayne Lewis and John Tiso contributed. Each one offered a different perspective, which helped make this a more well- rounded book and me a more educated author. I would also like to thank my good friends Mark Macumber and Rick Herring who helped me along the way (whether they realized it or not). 1712xbook.fm Page vii Thursday, November 16, 2006 7:37 AM viii This Book Is Safari Enabled The Safari ® Enabled icon on the cover of your favorite technology book means the book is available through Safari Bookshelf. When you buy this book, you get free access to the online edition for 45 days. Safari Bookshelf is an electronic reference library that lets you easily search thousands of technical books, find code samples, download chapters, and access technical information whenever and wherever you need it. To gain 45-day Safari Enabled access to this book: ■ Go to http://www.ciscopress.com/safarienabled ■ Complete the brief registration form. ■ Enter the coupon code MGDB-XBKD-ZSZL-L6DW-L1GD If you have difficulty registering on Safari Bookshelf or accessing the online edition, please e-mail customer-service@safaribooksonline.com. 1712xbook.fm Page viii Thursday, November 16, 2006 7:37 AM ix Contents at a Glance Foreword xxiv Introduction xxv Part I Overview and Design of a Campus Network 3 Chapter 1 Campus Network Overview 5 Chapter 2 Modular Network Design 27 Part II Building a Campus Network 55 Chapter 3 Switch Operation 57 Chapter 4 Switch Port Configuration 81 Chapter 5 VLANs and Trunks 109 Chapter 6 VLAN Trunking Protocol 135 Chapter 7 Aggregating Switch Links 159 Chapter 8 Traditional Spanning Tree Protocol 181 Chapter 9 Spanning Tree Configuration 215 Chapter 10 Protecting the Spanning Tree Protocol Topology 243 Chapter 11 Advanced Spanning Tree Protocol 259 Part III Layer 3 Switching 285 Chapter 12 Multilayer Switching 287 Chapter 13 Router, Supervisor, and Power Redundancy 313 Part IV Campus Network Services 351 Chapter 14 IP Telephony 353 Chapter 15 Securing Switch Access 385 Chapter 16 Securing with VLANs 409 1712xbook.fm Page ix Thursday, November 16, 2006 7:37 AM x Part V Wireless LANs 429 Chapter 17 Wireless LAN Overview 431 Chapter 18 Wireless Architecture and Design 471 Chapter 19 Cisco Unified Wireless Network 497 Part VI Scenarios for Final Preparation 533 Chapter 20 Scenarios for Final Preparation 535 Part VII Appendix 553 Appendix A Answers to Chapter “Do I Know This Already?” Quizzes and Q&A Sections 555 Index 610 1712xbook.fm Page x Thursday, November 16, 2006 7:37 AM [...]... brackets [{ }] indicate a required choice within an optional element 1712xbook.fm Page xxiv Thursday, November 16, 2006 7:37 AM xxiv Foreword CCNP BCMSN Exam Certification Guide, Fourth Edition, is an excellent self-study resource for the CCNP BCMSN exam Passing the exam validates the knowledge, skills, and understanding needed to build scalable multilayer switched networks, create and deploy a global intranet,... enterprise networks For the CCNP certification, you must pass a series of four core exams or pass a longer foundations exam plus one support exam The BCMSN exam or its content is included and required for either path For most exams, Cisco does not publish the scores needed for passing You need to take the exam to find that out for yourself To see the most current requirements for the CCNP or CCDP certifications,... increase your chances of passing the Cisco BCMSN exam Although other objectives can be achieved from using this book, the book is written with one goal in mind: to help you pass the exam 1712xbook.fm Page xxvi Thursday, November 16, 2006 7:37 AM xxvi The BCMSN exam is primarily based on the content of the Building Converged Cisco Multilayer Switched Networks (BCMSN) 3.0 CCNP course You should have either... Information and then Certification Exams The exam lasts 90 minutes and is offered through either Pearson VUE or Prometric testing centers only See www.cisco.com/en/US/ learning/le3/le11/learning_about_registering_for_exams.html for the most current information about registering for the exam Strategies for Exam Preparation The strategy you use to prepare for the BCMSN exam might be slightly different... interest to become proficient in each of the CCNP subjects When it is time to use what you have learned, being well rounded counts more than being well tested Table I-1 shows the official exam topics for the BCMSN exam, as posted on Cisco.com Note that Cisco has historically changed exam topics without changing the exam number, so do not be alarmed if small changes in the exam topics occur over time When in... before you leave for the exam You need to be as comfortable as possible for the entire 90-minute exam, so it pays not to be hungry Limiting the amount of liquids you consume right before test time might also be wise After the exam begins, the clock does not stop for a restroom break Also think about taking along a lightweight jacket, in case the exam room feels cold During the exam, try to pace yourself... long as you decide to try it again Anybody who has ever taken a Cisco exam knows that to be true; just ask the people who have attempted the CCIE lab exam As soon as you can, schedule to take the same exam again Allow a few days so that you can study the topics that gave you trouble The exam score should also break down the entire exam into major topics, each with its respective score Do not be discouraged... Paths The BCMSN exam itself is composed of 60 to 70 questions, presented in a variety of formats You can expect to find multiple-choice, single-answer; multiple-choice, multiple-answer; drag-anddrop; fill-in-the-blank; and simulation questions To find more specific information about the topics that can be covered on the BCMSN exam, go to cisco.com; then click Learning and Events, followed by Exam Information... experience you already have obtained For example, if you have attended the BCMSN course, you might take a different approach than someone who learned switching through on-the-job training Regardless of the strategy you use or the background you have, this book is designed to help you get to the point that you can pass the exam with the least amount of time required For example, there is no need for you to... performance on tests This exam- preparation guide focuses on increasing both retention and recall of the topics on the exam The other human characteristic involved in successfully passing the exam is intelligence; this book does not address that issue! 1712xbook.fm Page xxx Thursday, November 16, 2006 7:37 AM xxx Adult retention is typically less than that of children For example, it is common for 4-year-olds . Press CCNP Self-Study CCNP BCMSN Official Exam Certification Guide Fourth Edition David Hucaby CCIE No. 4594 1712xbook.fm Page i Thursday, November 16, 2006 7:37 AM ii CCNP Self-Study: . 1712xbook.fm Page i Thursday, November 16, 2006 7:37 AM ii CCNP Self-Study: CCNP BCMSN Official Exam Certification Guide, Fourth Edition David Hucaby Copyright © 2007 Cisco Systems, Inc. Published. about selected topics for the Building Converged Cisco Multilayer Switched Networks (BCMSN) exam for the CCNP certification. Every effort has been made to make this book as complete and as accurate