LEARNING MADE EASY VMware 3rd Special Edition Network Virtualization dummies See why you need to aliZe you Understand how it ks and getting started Brought to b vmWare Varun Santosh Stijn Vanveerdeghem
About VMware VMware software powers the worlds complex digital infrastructure The company' s compute, cloud, mobility, networking and security offerings provide a dynamic, consistent digital foundation to deliver the apps that power business innovation. VMware is streamlining the journey to digital business for more than 500,000 customers globally. aided by an ecosystem of 75,000 partners, by unlocking value from today's technologies while enabling the integration of tomorrows. With VMware, organizations are empowered to flex and harness new technology quickly, without disrupting operations or introducing risk This year, VMware celebrates 22 years of breakthrough innovation benefiting business and society Tolearnmorevisitwww.vmware.com s are @2021 John Wley Sons Inc. Any dissemination distribution,Or
These materials are © 2021 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited
Network Virtualization VMware 3rd Special Edition by varun Santosh and Stin Vanveerdeghem dummies A Wiley Brand C2021 John Wley Sons Inc Any di
These materials are © 2021 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Network Virtualization VMware 3rd Special Edition by Varun Santosh and Stijn Vanveerdeghem
Network Virtualization For dummies@ vmware 3rd Special Edition 111 River st Hoboken, NJ07030-5774 wiley.com Copyright 2021 by John wiley Sons, Inc, Hoboken, New Jersey No part of this publication may be reproduced, stored in a retrieval system or transmitted in any ions 107 or 108 of the 1976 United States Copyright Act, withou 07030,(201)748-6011,fax(201)748-6008,oronlineathttp://www.wiley.com/go/permissions. nd related trade dress are trad tered trademarks of john John Wiley Sons, Inc, is not associated with any product or vendor mentioned in this book LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: THE PUBLISHER AND THE AUTHOR MAKE NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS WORK AND SPECIFICALLY DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES OR PROMOTIO topy s sot n wrrt正正2 RENDERING LEGAL ACCOUNTING OR OTHER PROFESSIONAL SERVICES. IF PROFESSIONAL ASSISTANCE IS REQUIRED, THE SERVICES OF A COMPETENT PROFESSIONAL PERSON SHOULD BE SOUGHT NEITHER THE PUBLISHER NOR THE AUTHOR SHALL BE LIABLE FOR DAMAGES ARISIN THAT THE AUTHOR OR THE PUBLISHER ENDORSES THE INFORMATION THE ORGANIZATION OR WEBSITE MAY PROVIDE OR RECOMMENDATIONS IT MAY MAKE. FURTHER, READERS HOULD BE AWARE THAT INTERNET WEBSITES LISTED IN THIS WORK MAY HAVE CHANGED OR DISAPPEARED BETWEEN WHEN THIS WORK WAS WRITTEN AND WHEN IT IS READ ISBN978-1-119-73684-4(pbk);ISBN978-1-119-73682-0(ebk) Manufactured in the United states of america 10987654321 epartment in the U.S. at 877-409-417 contactBrandedrights&licensesewiley.com Publishers acknowledgments Some of the people who helped bring this book to market include the following: Project Editor: Elizabeth Kuball Business Development Acquisitions Editor: Ashley Coffey Representative: Karen Hattan Editorial Manager: Rev Mengle Production Editor: Siddique Shaik Special Help: Faithe Wempen C2021 John Wley Sons Inc Any di
These materials are © 2021 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Network Virtualization For Dummies®, VMware 3rd Special Edition Published by John Wiley & Sons, Inc. 111 River St. Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2021 by John Wiley & Sons, Inc., Hoboken, New Jersey No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without the prior written permission of the Publisher. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions. Trademarks: Wiley, For Dummies, the Dummies Man logo, The Dummies Way, Dummies.com, Making Everything Easier, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in the United States and other countries, and may not be used without written permission. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc., is not associated with any product or vendor mentioned in this book. LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: THE PUBLISHER AND THE AUTHOR MAKE NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS WORK AND SPECIFICALLY DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES OR PROMOTIONAL MATERIALS. THE ADVICE AND STRATEGIES CONTAINED HEREIN MAY NOT BE SUITABLE FOR EVERY SITUATION. THIS WORK IS SOLD WITH THE UNDERSTANDING THAT THE PUBLISHER IS NOT ENGAGED IN RENDERING LEGAL, ACCOUNTING, OR OTHER PROFESSIONAL SERVICES. IF PROFESSIONAL ASSISTANCE IS REQUIRED, THE SERVICES OF A COMPETENT PROFESSIONAL PERSON SHOULD BE SOUGHT. NEITHER THE PUBLISHER NOR THE AUTHOR SHALL BE LIABLE FOR DAMAGES ARISING HEREFROM. THE FACT THAT AN ORGANIZATION OR WEBSITE IS REFERRED TO IN THIS WORK AS A CITATION AND/OR A POTENTIAL SOURCE OF FURTHER INFORMATION DOES NOT MEAN THAT THE AUTHOR OR THE PUBLISHER ENDORSES THE INFORMATION THE ORGANIZATION OR WEBSITE MAY PROVIDE OR RECOMMENDATIONS IT MAY MAKE. FURTHER, READERS SHOULD BE AWARE THAT INTERNET WEBSITES LISTED IN THIS WORK MAY HAVE CHANGED OR DISAPPEARED BETWEEN WHEN THIS WORK WAS WRITTEN AND WHEN IT IS READ. ISBN 978-1-119-73684-4 (pbk); ISBN 978-1-119-73682-0 (ebk) Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 For general information on our other products and services, or how to create a custom For Dummies book for your business or organization, please contact our Business Development Department in the U.S. at 877-409-4177, contact info@dummies.biz, or visit www.wiley.com/go/ custompub. For information about licensing the For Dummies brand for products or services, contact BrandedRights&Licenses@Wiley.com. Publisher’s Acknowledgments Some of the people who helped bring this book to market include the following: Project Editor: Elizabeth Kuball Acquisitions Editor: Ashley Coffey Editorial Manager: Rev Mengle Business Development Representative: Karen Hattan Production Editor: Siddique Shaik Special Help: Faithe Wempen
Table of contents NTRODUCTION… About this book Foolish Assumptions Icons Used in this Book 2 Where to go from here CHAPTER 1: Evolving to a Modern Network How Network Virtualization Is Changing Everything Todays Networking and Security Challenges Businesses need speed Security requirements are rising 5 Apps and data are in multiple clouds Why Hardware-Based Networks Can't Keep Up Physical network provisioning is slow Workload placement and mobility are limited Hardware limitations and lock-ins breed complexity Configuration processes are manual, slow, and error-prone…… 9 Operational and capital expenditures are too high You can't leverage hybrid cloud resources 11 Traditional firewalls arent adequate CHAPTER2: Virtualizing the Network standing How Network Virtualization Works Differentiating Between Network Virtualization and Software-Defined Networking Comparing Virtual Appliances to Network Virtualization Understanding Why the Time Is Right for Network Virtualization Meeting the demands of a dynamic business. Increasing flexibility with hardware abstraction Redefining security with micro-segmentation Table of contents 1l1
Table of Contents iii These materials are © 2021 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Table of Contents INTRODUCTION............................................................................................... 1 About This Book ................................................................................... 1 Foolish Assumptions............................................................................ 2 Icons Used in This Book....................................................................... 2 Where to Go from Here....................................................................... 2 CHAPTER 1: Evolving to a Modern Network ........................................ 3 How Network Virtualization Is Changing Everything ....................... 4 Today’s Networking and Security Challenges ................................... 5 Businesses need speed.................................................................. 5 Security requirements are rising .................................................. 5 Apps and data are in multiple clouds........................................... 6 Why Hardware-Based Networks Can’t Keep Up............................... 7 Physical network provisioning is slow.......................................... 7 Workload placement and mobility are limited............................ 8 Hardware limitations and lock-ins breed complexity and rigidity....................................................................................... 8 Configuration processes are manual, slow, and error-prone...................................................................................... 9 Operational and capital expenditures are too high .................10 You can’t leverage hybrid cloud resources................................11 Traditional firewalls aren’t adequate..........................................11 CHAPTER 2: Virtualizing the Network.....................................................15 Understanding How Network Virtualization Works.......................15 Differentiating Between Network Virtualization and Software-Defined Networking ..........................................................19 Comparing Virtual Appliances to Network Virtualization..............20 Understanding Why the Time Is Right for Network Virtualization.......................................................................................20 Meeting the demands of a dynamic business...........................21 Increasing flexibility with hardware abstraction.......................21 Redefining security with micro-segmentation ..........................21 Rethinking the Network.....................................................................24