Authorized self-study guide: designing Cisco network service architectures (ARCH)

623 Pages·2009·21.79 MB·English

by  Hutton

Copyright
Authorized Self-Study Guide: Designing Cisco Network Service Architectures (ARCH),
Second Edition
Keith Hutton
Mark Schofield
Diane Teare
Copyright © 2009 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
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information storage and retrieval system, without written permission from the publisher,
except for the inclusion of brief quotations in a review.
Printed in the United States of America
First Printing December 2009
Library of Congress Cataloging-in-Publication Data:
Hutton, Keith.
Authorized self-
study guide : designing Cisco network service architectures (ARCH) / Keith Hutton, Mar
k Schofield, Diane Teare. -- 2nd ed.
p. cm.
ISBN 978-1-58705-574-4 (hardcover)
1. Computer network architectures--Examinations--
Study guides. 2. Computer networks--Design--Examinations--
Study guides. 3. Internetworking (Telecommunication)--Examinations--
Study guides. I. Schofield,, Mark. II. Teare, Diane. III. Title. IV. Title: Designing Cisco n
etwork service architectures (ARCH).
TK5105.52.H98 2008
004.6'5--dc22
2008049128
ISBN-13: 978-1-58705-574-4
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Dedications
From Keith:
This book is dedicated to my parents, for teaching me how to dream.
From Mark:
This book is dedicated to Roslyn. Thank you for all your love and support in this and all
my endeavors.
From Diane:
This book is dedicated to my remarkable husband, Allan Mertin, who continues to inspire
me; to our charming son, Nicholas, and his amazing desire to learn everything about the
world; to my parents, Syd and Beryl, for their continuous love and support; and to my
friends, whose wisdom keeps me going.
About the Authors
Keith Hutton is an information technology professional with close to 20 years of
experience in the industry. Over the course of his career, Keith has worked as a
professional services engineer, presales engineer, third-line operational support engineer,
engineering team lead, instructor, and author. Keith currently works as a professional
services engineer for Bell Canada, responsible for the design and configuration of
network security infrastructures. Keith has a B.A. honors degree from Queen's
University, and is a certified Cisco instructor, Cisco Certified Network Professional
(CCNP), Cisco Certified Design Professional (CCDP), and Cisco Certified
Internetworking Professional (CCIP).
Mark Schofield has been a network architect at Bell Canada for the past six years.
Working for the largest service provider in Canada, he has designed Multiprotocol Layer
Switching (MPLS) virtual private networks (VPNs) with IP quality of service (QoS) for
large enterprise customers. During the past five years at Bell, he has been involved in the
design, implementation, and planning of large national networks for Bell Canada's federal
government customers. As part of a cross-company team, he developed Bell Canada's
premier MPLS VPN product. Mark has a MLIS from the University of Western Ontario
and a B.A. and M.A. degrees from the University of Guelph. Industry certifications
include the Cisco Certified Systems Instructor (CCIP), Cisco Certified Network
Professional (CCNP), Citrix Certified Enterprise Administrator (CCEA), and Microsoft
Certified Systems Engineer (MCSE).
Diane Teare is a professional in the networking, training, project management, and e-
learning fields. She has more than 20 years of experience in designing, implementing,
and troubleshooting network hardware and software, and has been involved in teaching,
course design, and project management. She has extensive knowledge of network design
and routing technologies, and is an instructor with one of the largest authorized Cisco
Learning Partners. She was recently the director of e-learning for the same company,
where she was responsible for planning and supporting all the company's e-learning
offerings in Canada, including Cisco courses. Diane has a bachelor's degree in applied
science in electrical engineering and a master's degree in applied science in management
science. She is a certified Cisco instructor and currently holds her Cisco Certified
Network Professional (CCNP), Cisco Certified Design Professional (CCDP), and Project
Management Professional (PMP) certifications. She coauthored the Cisco Press titles
Campus Network Design Fundamentals, the three editions of Authorized Self-Study
Guide Building Scalable Cisco Internetworks (BSCI), and Building Scalable Cisco
Networks; and edited the two editions of the Authorized Self-Study Guide Designing for
Cisco Internetwork Solutions (DESGN) and Designing Cisco Networks.
About the Technical Reviewers
Nathaly Landry attended the Royal Military College in Kingston, Ontario, Canada, where
she graduated in 1989 with a bachelor's degree in electrical engineering. She then worked
for two years in the satellite communication section before going to Ottawa University
for a master's degree in electrical engineering. Upon graduation, she went back to the
Department of National Defense and worked as a project manager for the implementation
of the Defense Wide-Area Network, and then became the in-service support manager for
the network. From 1996 to 2000, she worked as a networking consultant and instructor
for Learning Tree. In May 2000, she joined Cisco, where she supported a number of
federal accounts, and more recently has focused on Bell Canada as a channel systems
engineer.
Richard Piquard is a senior network architect for Global Knowledge Network, Inc., one
of the world's largest Cisco Learning Partners. Richard has more than eight years'
experience as a certified Cisco instructor, teaching introductory and advanced routing,
switching, design, and voice-related courses throughout North America and Europe.
Richard has amassed a highly diverse skill set in design and implementation, of both
Cisco and multivendor environments, throughout his nearly 15 years in the
internetworking industry. His experience ranges from his military background as the
network chief of the Marine Corps Systems Command, Quantico, Virginia, to a field
engineer for the Xylan Corporation (Alcatel), Calabasas, California, to a member of a
four-person, worldwide network planning and implementation team for the Household
Finance Corporation in Chicago, Illinois. In addition, he has served as a technical
reviewer for the Cisco Press title Authorized Self-Study Guide Designing for Cisco
Internetwork Solutions (DESGN), Second Edition.
Acknowledgments
We would like to thank many people for helping us put this book together:
The Cisco Press team: Brett Bartow, the executive editor, for coordinating the whole
team and driving this book through the process, and for his unwavering support over the
years. Vanessa Evans, for being instrumental in organizing the logistics and
administration.
Ginny Bess Munroe, the development editor, has been invaluable in producing a high-
quality manuscript. We would also like to thank Seth Kerney, the project editor, and
Keith Cline, the copy editor, for their excellent work in steering this book through the
editorial process.
The Cisco ARCH course development team: Many thanks to the members of the team
who developed the latest version of the ARCH course. The team included Glenn Tapley,
Dennis Masters, and Dwayne Fields from Cisco Systems; along with Dr. Peter Welcher
and Carole Warner-Reece of Chesapeake Netcraftsmen.
The technical reviewers: We want to thank the technical reviewers of this book—Nathaly
Landry and Richard Piquard—for their thorough, detailed review and valuable input.
Our families: Of course, this book would not have been possible without the constant
understanding and patience of our families. They have always been there to motivate and
inspire us. We thank you all.
Command Syntax Conventions
The conventions used to present command syntax in this book are the same conventions
used in the IOS Command Reference. The Command Reference describes these
conventions as follows:
• Boldface indicates commands and keywords that are entered literally as shown. In
actual configuration examples and output (not general command syntax), boldface
indicates commands that are manually input by the user (such as a show
command).
• Italic indicates arguments for which you supply actual values.
• Vertical bars (|) separate alternative, mutually exclusive elements.
• Square brackets ([ ]) indicate an optional element.
• Braces ({ }) indicate a required choice.
• Braces within brackets ([{ }]) indicate a required choice within an optional
element.
Foreword
Cisco Certification Self-Study Guides are excellent self-study resources for networking
professionals to maintain and increase internetworking skills and to prepare for Cisco
Career Certification exams. Cisco Career Certifications are recognized worldwide and
provide valuable, measurable rewards to networking professionals and their employers.
Cisco Press exam certification guides and preparation materials offer exceptional—and
flexible—access to the knowledge and information required to stay current in one's field
of expertise or to gain new skills. Whether used to increase internetworking skills or as a
supplement to a formal certification preparation course, these materials offer networking
professionals the information and knowledge required to perform on-the-job tasks
proficiently.
Developed in conjunction with the Cisco certifications and training team, Cisco Press
books are the only self-study books authorized by Cisco, and they offer students a series
of exam practice tools and resource materials to help ensure that learners fully grasp the
concepts and information presented.
Additional authorized Cisco instructor-led courses, e-learning, labs, and simulations are
available exclusively from Cisco Learning Solutions Partners worldwide. To learn more,
visit http://www.cisco.com/go/training.
I hope you will find this guide to be an essential part of your exam preparation and
professional development, as well as a valuable addition to your personal library.
Drew Rosen
Manager, Learning & Development
Learning@Cisco
September 2008
Introduction
Designing Cisco Network Service Architectures (ARCH), Second Edition, covers how to
perform the conceptual, intermediate, and detailed design of a network infrastructure.
This design supports network solutions over intelligent network services to achieve
effective performance, scalability, and availability of the network. This book enables
readers, applying solid Cisco network solution models and best design practices, to
provide viable and stable enterprise internetworking solutions. In addition, the book has
been written to help candidates prepare for the Designing Cisco Network Service
Architectures Exam (642-873 ARCH). This exam is one of the requirements for the
CCDP certification. This exam tests a candidate's knowledge of the latest development in
network design and technologies, including network infrastructure, intelligent network
services, and converged network solutions.
Since the first edition was published in 2004, the ARCH course has changed to reflect the
new exam requirements. This led to the immediate need for an update to this examination
preparation text. Readers of the previous edition of Designing Cisco Network
Architectures (ARCH) can use this text to update their knowledge and skill sets.
Goals of This Book
Upon completing this book, you will be able to meet these objectives:
• Introduce the Cisco Service-Oriented Network Architecture (SONA) framework,
and explain how it addresses enterprise network needs for performance,
scalability, and availability
• Describe how the Cisco Enterprise Architectures are used in the SONA
framework for designing enterprise networks
• Create intermediate and detailed enterprise campus network, enterprise edge, and
remote infrastructure designs that offer effective functionality, performance,
scalability, and availability
• Create conceptual, intermediate, and detailed intelligent network service designs
for network management, high availability, security, quality of service (QoS), and
IP multicast
• Create conceptual, intermediate, and detailed virtual private network (VPN)
designs
• Create conceptual, intermediate, and detailed voice over wireless network designs
Prerequisite Knowledge
Although enthusiastic readers will tackle less-familiar topics with some energy, a sound
grounding in networking is advised. To gain the most from this book, you should be
familiar with internetworking technologies, Cisco products, and Cisco IOS Software
features. You will find knowledge about the following topics helpful for your successful
understanding of the material presented in this book:
• How to design the necessary services to extend IP addresses using variable-length
subnet masking (VLSM), Network Address Translation (NAT), and route
summarization
• How to implement appropriate networking routing protocols, such as Open
Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol
(EIGRP), and Border Gateway Protocol (BGP) on an existing internetwork
• How to redistribute routes between different routing protocols
• The required Cisco products and services that enable connectivity and traffic
transport for a multilayer campus network