CCNP路由与交换便携命令指南：2015版

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《CCNP Routing and Switching Portable Command Guide》是由Scott Empson、Patrick Gargano和Hans Roth合著的一本专业书籍，专为准备CCNP路由（300-101）或交换（300-115）认证考试的网络专业人士设计。该指南旨在提供所有CCNP级别的Cisco IOS软件命令、关键词、命令参数以及相关的提示和实际应用示例，帮助读者在备考过程中记忆和理解这些复杂的网络管理命令。该书的特点在于其紧凑且易于携带的特性，无论是在机房还是设备间，都能方便地查阅。书中详细梳理了认证级别的命令结构，确保考生熟悉如何在真实网络环境中配置和操作，通过丰富的配置实例，深入展示了这些命令在实际网络设计中的运用。此外，作者们对命令进行了全面的总结，涵盖了关键字的解释、命令执行流程和可能出现的提示，以及注意事项，以帮助考生更好地理解和掌握。值得注意的是，版权方面，本书受Cisco Systems, Inc.的保护，未经书面许可，禁止任何形式的复制或传播，包括但不限于复印、录音和通过任何信息存储与检索系统。首次印刷日期为2014年12月，且已获得美国国会图书馆的控制编号。本书还包含一个警告和免责声明，声明尽管尽力保证信息的完整性和准确性，但并不承诺或担保其适用性，提供的信息仅作为参考，读者在实际操作中需自行判断并谨慎处理。《CCNP Routing and Switching Portable Command Guide》是备考CCNP路由和交换认证考试的理想工具，它不仅提供了必要的命令知识，还通过实例演示帮助读者将其转化为实际技能，对于提升网络管理员的专业水平具有重要意义。

About the Authors

Scott Empson is the chair of the Bachelor of Applied Information Systems Technology

degree program at the Northern Alberta Institute of Technology in Edmonton, Alberta,

Canada, where he teaches Cisco routing, switching, network design, and leadership

courses in a variety of different programs (certificate, diploma, and applied degree) at

the postsecondary level. Scott is also the program coordinator of the Cisco Networking

Academy Program at NAIT, an area support center for the province of Alberta. He has

a Masters of Education degree along with three undergraduate degrees: a Bachelor of

Arts, with a major in English; a Bachelor of Education, again with a major in English/

Language Arts; and a Bachelor of Applied Information Systems Technology, with

a major in Network Management. He currently holds several industry certifications,

including CCNP, CCDP, CCAI, C|EH, and Network+. Before instructing at NAIT, he

was a junior/senior high school English/Language Arts/Computer Science teacher at dif-

ferent schools throughout Northern Alberta. Scott lives in Edmonton, Alberta, with his

wife, Trina, and two children, Zach and Shae.

Patrick Gargano has been a Cisco Networking Academy Instructor since 2000. He

currently heads the Networking Academy program and teaches CCNA/CCNP-level

courses at Collège La Cité in Ottawa, Canada, where he has successfully introduced

mastery-based learning and gamification into his teaching. In 2013 and 2014, Patrick

led the Cisco Networking Academy student “Dream Team,” which deployed the wired

and wireless networks for attendees of the Cisco Live conferences in the United States.

In 2014, Collège La Cité awarded him the prize for innovation and excellence in teach-

ing. Previously he was a Cisco Networking Academy instructor at Cégep de l’Outaouais

(Gatineau, Canada) and Louis-Riel High School (Ottawa, Canada) and a Cisco instructor

(CCSI) for Fast Lane UK (London). His certifications include CCNA (R&S), CCNA

Wireless, CCNA Security, and CCNP (R&S). #CiscoChampion @PatrickGargano

Hans Roth is an instructor in the Electrical Engineering Technology department at Red

River College in Winnipeg, Manitoba, Canada. Hans has been teaching at the college

for 17 years and teaches in both the engineering technology and IT areas. He has been

with the Cisco Networking Academy since 2000, teaching CCNP curricula. Before

teaching, Hans spent 15 years on R&D/product development teams helping design

microcontroller-based control systems for consumer products and for the automotive and

agricultural industries.

xvii

Dedications

As always, this book is dedicated to Trina, Zach, and Shae. —Scott Empson

To my wife, Kathryn, for her patience, encouragement, love and understanding. I am a

much better person thanks to her (or so she says. She also says there should be a comma

after “love.”). —Patrick Gargano

I’d like to again thank my wife, Carol, for her constant support and understanding during

those times I’ve spent writing in the basement. —Hans Roth

Acknowledgments

Anyone who has ever had anything to do with the publishing industry knows that it

takes many, many people to create a book. Our names may be on the cover, but there is

no way that we can take credit for all that occurred to get this book from idea to publica-

tion. Therefore, we must thank the following:

Scott : The team at Cisco Press. Once again, you amaze me with your professionalism

and the ability to make me look good. Mary Beth, Chris, and Tonya—thank you for your

continued support and belief in my little engineering journal.

To my technical reviewer, Diane Teare, thanks for keeping me on track and making sure

that what I wrote was correct and relevant. I have read and used Diane’s books for many

years, and now I finally have a chance to work with you. Hopefully, I live up to your

standards.

A big thank you goes to my co-authors, Hans Roth and Patrick Gargano, for helping

me through this with all of your technical expertise and willingness to assist in try-

ing to make my ideas a reality. I am truly honored to have you as part of the Portable

Command Guide family.

Patrick : I feel I must also echo some of Scott’s acknowledgments. As the “new guy”

on the team, I would have been lost had it not been for Mary Beth’s advice, Vanessa’s

patience, Chris’ direction, and Diane’s eagle eyes. Thank you for making me feel part

of the gang. As well, massive thanks to Scott for bringing me on board for this revision

of the CCNP Portable Command Guide . It was a pleasure working with him and Hans

on this project. I hope I’ve managed to uphold the level of excellence these books have

achieved over the years.

Hans : The overall effort is large and the involvement is wide to get any book completed.

Working with you folks at Cisco Press has again been a wonderful partnership. Your

ongoing professionalism, understanding, and patience have consistently helped me to do

a little better each time I sit down to write.

To our technical reviewer, Diane Teare: Wow, thanks for making me go deep.

Scott and Patrick: Thanks for your help, positive approach, and expertise. It was a very

great pleasure.

xix

Introduction

Welcome to CCNP Routing and Switching Portable Command Guide ! This book is

the result of a redesign by Cisco of their professional-level certification exams to more

closely align with the industry’s need for networking talent as we enter the era of “the

Internet of Everything.” The previous success of the last editions of both the ROUTE

and SWITCH books prompted Cisco Press to approach me with a request to update

the book with the necessary new content to help both students and IT professionals in

the field study and prepare for the new CCNP ROUTE and SWITCH exams. This time

around, after many long talks with Hans and Patrick, Cisco Press, and other trusted IT

colleagues, the decision was made to combine both ROUTE and SWITCH into a single

volume. Hopefully, you will find value in having both exams’ content in a single (albeit

slightly thicker) volume. For someone who originally thought that a Portable Command

Guide would be fewer than 100 pages in length and limited to the Cisco Academy pro-

gram for its complete audience, I am continually amazed that my little engineering jour-

nal has caught on with such a wide range of people throughout the IT community.

For those of you who have worked with these books before, thank you for looking at

this one. I hope that it will help you as you prepare for the vendor exam, or assist you in

your daily activities as a Cisco network administrator/manager. For those of you new to

the Portable Command Guides, you are reading what is essentially a cleaned-up version

of my own personal engineering journals—a small notebook that I carry around with

me that contains little nuggets of information; commands that I use but then forget; IP

address schemes for the parts of the network I work with only on occasion; and those

little reminders for those concepts that you only work with once or twice a year, but still

need to know when those times roll around. As an educator who teaches these topics to

post-secondary students, the classes I teach sometime occur only once a year; all of you

out there can attest to the fact that it is extremely difficult to remember all those com-

mands all the time. Having a journal of commands at your fingertips, without having to

search the Cisco website (or if the network is down and you are the one responsible for

getting it back online) can be a real timesaver.

With the creation of the new CCNP exam objectives, there is always something new

to read, or a new podcast to listen to, or another slideshow from Cisco Live that you

missed or that you just want to review again. The engineering journal can be that central

repository of information that will not weigh you down as you carry it from the office

or cubicle to the server and infrastructure rooms in some remote part of the building or

some branch office.

To make this guide a more realistic one for you to use, the folks at Cisco Press have

decided to continue with an appendix of blank pages—pages that are there for you to

put your own personal touches (your own configurations, commands that are not in this

book but are needed in your world, and so on). That way, this book will hopefully look

less like the authors’ journals and more like your own.

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