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CopyrightCopyright 2003 Cisco SystemsPublishedby:Table of Contents Cisco Press Index800 East 96th Street, 3rd FloorMetro EthernetIndianapolis, IN 46240 USABySam HalabiAll rights reserved. No part of this book may be reproduced or transmitted in any form or by anymeans,electronicor mechanical, including photocopying, recording, or by any informationPublisher:Cisco Pressstorageandretrievalsystem, without written permission from the publisher, except for thePub Date: October 01, 2003inclusionofbriefquotationsin a review.ISBN: 1-58705-096-XPages: 240Printedin the United States of America 1 2 3 4 5 6 7 8 9 0Library of Congress Cataloging-in-Publication Number: 2002103527First Printing September 2003The definitive guide to Enterprise and Carrier Metro Ethernet applications.Warning and DisclaimerDiscover the latest developments in metro networking, Ethernet, and MPLS services andwhat istheycan dotoforyour organizationThis bookdesignedprovideinformation about Metro Ethernet. Every effort has been madeto make this book as complete and as accurate as possible, but no warranty or fitness is implied.Learn from the easy-to-read format that enables networking professionals of all levels tounderstandistheconceptsThe informationprovidedon an "as is" basis. The author, Cisco Press, and Cisco Systems,Inc., shall have neither liability nor responsibility to any person or entity with respect to any lossGain fromthe experienceof industrycontainedinnovatorinandCiscoSamor damagesarisingfrom the informationthisbest-sellingbook or fromthePressuse ofauthor,the programs that may accompany it.Metronetworkswill emergeas bookthe yand ofwillThe opinionsexpressedin thisbelongauthornot ers.Systems, Inc.The metro has always been a challenging environment for delivering data services because it hasbeen built to handle the stringent reliability and availability needs for voice. Carriers will have togo through fundamental shifts to equip the metro for next-generation data services demandedby enterprise customers and consumers. This is not only a technology shift, but also a shift in theoperational and business model that will allow the incumbent carriers to transform the metro toAlltermsmentionedin this book that are known to be trademarks or service marks have beenofferenhanceddata services.appropriately capitalized. Cisco Press or Cisco Systems, Inc. cannot attest to the accuracy of thisinformation.Useof aCiscoterm Pressin thislooksbookatshouldnot be regardedas affectingthe validityanyMetro Ethernetfromthe deploymentof metrodata servicesfrom a ofholistictrademarkorservicemark.view. It describes the current metro, which is based on TDM technology, and discusses theTrademark Acknowledgmentsdrivers and challenges carriers will face in transforming the metro to address data services.FeedbackInformationMetro Ethernet discussesthe adoption of metro Ethernet services and how that has led carriersto the delivery of metro data services. With a changing mix of transport technologies, the bookthenexaminesemergingtrends, technicaland delvesinto ofthetheroleof virtualprivateAt CiscoPress, currentour goalandis tocreate in-depthbookshighestqualityand s(VLAN),virtualprivateLANservices(VPLS),traffic theEach book is crafted with care and precision, undergoing rigorous development that involvesengineering,and ofMPLSand GeneralizedMPLS (GMPLS).unique expertisemembersfrom the professionaltechnical community.Readers' feedback is a natural continuation of this process. If you have any comments regardinghow we could improve the quality of this book, or otherwise alter it to better suit your needs,you can contact us through e-mail at feedback@ciscopress.com. Please make sure to include thebook title and ISBN in your message.

We greatly appreciate your assistance.PublisherJohn WaitEditor-in-ChiefJohn KaneCisco RepresentativeAnthony Wolfenden Table of ContentsManager Cisco Press ProgramIndexMetroEthernetManager,MarketingSonia Torres ChavezCommunications, CiscoBySystemsSam HalabiScott MillerCisco Marketing Program ManagerEdie QuirozProductionManagerPub Date: October01, 2003Patrick KanousePublisher: Cisco PressISBN: 1-58705-096-XDevelopment EditorDayna IsleyPages: 240Copy EditorBill McManusTechnical EditorsMike Bernico, Mark Gallo, Giles Heron, IrwinLazarTeamCoordinatorRossThedefinitiveguide to Enterprise and Carrier MetroTammiEthernetapplications.Cover DesignerLouisa AdairDiscover the latest developments in metro networking,and MPLSservices rationwhat they can do for your organizationProofreaderGayle JohnsonLearn from the easy-to-read format that enables networking professionals of all levels toIndexerLarry Sweazyunderstand the conceptsGain from the experience of industry innovator and best-selling Cisco Press author, SamHalabi, author of Internet Routing ArchitecturesMetro networks will emerge as the next area of growth for the networking industry and willrepresent a major shift in how data services are offered to businesses and residential customers.CorporateHeadquartersThe metro hasalways been a challenging environment for delivering data services because it hasCiscoSystems,Inc. the stringent reliability and availability needs for voice. Carriers will have tobeen built to handle170WestTasmanDrive shifts to equip the metro for next-generation data services demandedgo through fundamentalSanJose,CA95134-1706by enterprise customers and consumers. This is not only a technology shift, but also a shift in theUSAoperational and business model that will allow the incumbent carriers to transform the metro towww.cisco.comoffer enhanced data services.Tel: 408 526-4000800Ethernet553-NETS(6387)MetrofromCisco Press looks at the deployment of metro data services from a holisticFax:408526-4100view. It describes the current metro, which is based on TDM technology, and discusses thedrivers and challenges carriers will face in transforming the metro to address data services.European HeadquartersCiscoMetro SystemsEthernet Internationaldiscusses theBVadoption of metro Ethernet services and how that has led carriersHaarlerbergparkto the delivery of metro data services. With a changing mix of transport technologies, the bookHaarlerbergweg13-19 and emerging trends, and delves into the role of virtual private networksthen examines current1101Amsterdam(VPN),CHvirtualprivate local area networks (VLAN), virtual private LAN services (VPLS), trafficTheNetherlandsengineering,and MPLS and Generalized MPLS (GMPLS).www-europe.cisco.comTel: 31 0 20 357 1000Fax: 31 0 20 357 1100Americas Headquarters

Cisco Systems, Inc.170 West Tasman DriveSan Jose, CA 95134-1706USAwww.cisco.comTel: 408 526-7660Fax:408 527-0883 Table of ContentsAsia Pacific Headquarters IndexCisco Systems, Inc.Metro EthernetCapital TowerBySamHalabi168RobinsonRoad#22-01 to #29-01SingaporePublisher:068912Cisco Presswww.cisco.comPub Date: October 01, 2003Tel: 656317 7777ISBN: 1-58705-096-XFax: 65 6317 7799Pages: 240Cisco Systems has more than 200 offices in the following countries and regions. Addresses,phone numbers, and fax numbers are listed on the Cisco.com Web site atwww.cisco.com/go/offices.Argentina AustraliaAustria Belgium Brazil BulgariaCanada Chile China PRC The definitiveguide to Enterpriseand CarrierMetroEthernet applications.Colombia Costa Rica Croatia Czech Republic Denmark Dubai, UAE Finland France Germany Greece Hong Kong SAR Hungary India Indonesia Ireland Israel Italy latest developmentsEthernet,and MPLSservicesand JapanDiscover Korea the Luxembourg Malaysiain metroMexiconetworking, The Netherlands NewZealand NorwaywhattheycandoforyourorganizationPeru Philippines Poland Portugal Puerto Rico Romania Russia Saudi Arabia Scotland Singapore Slovakia Slovenia South Africa Spain Sweden Switzerland Learnfrom theeasy-to-readformatthat enablesnetworkingprofessionalsof all levelsto Taiwan Thailand Turkey Ukraine UnitedKingdom United States VenezuelaVietnamunderstandtheconceptsZimbabweGain fromtheCiscoexperienceof industryinnovatorand best-sellingCiscoSamtheCopyright2003Systems,Inc. All rightsreserved.CCIP, CCSP,the PressCisco author,Arrow scoPowered Network mark, the Cisco Systems Verified logo, Cisco Unity, Follow Me Browsing,FormShare, iQ Net Readiness Scorecard, Networking Academy, and ScriptShare are trademarksMetronetworkswillemergeas thethenextareagrowthfor Play,the networkingand Waywill toof CiscoSystems,Inc.;ChangingWayWeofWork,Live,and Learn,industryThe eredtobusinessesandresidentialcustomers.Increase Your Internet Quotient, and iQuick Study are service marks of Cisco Systems, Inc.; andThemetrohas alwaysbeen a challengingenvironmentfor CCNP,deliveringdatabecause it hasAironet,ASIST,BPX, Catalyst,CCDA, CCDP,CCIE, CCNA,Cisco,theservicesCisco ndavailabilityneedsforvoice.Carriershave toInternetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, fornext-generationdataservicesdemandedSystems Capital, the Cisco Systems logo, Empowering the Internet Generation,byenterprise customersand consumers.This isFastnot Step,only aGigaStack,technologyInternetshift, butalso a otient,IOS,in mbentcarrierstotransformthemetrotoIP/TV, iQ Expertise, the iQ logo, LightStream, MGX, MICA, the Networkers logo, Networkofferenhanceddataservices.Registrar,Packet, PIX, Post-Routing, Pre-Routing, RateMUX, Registrar, SlideCast, SMARTnet,StrataView Plus, Stratm, SwitchProbe, TeleRouter, TransPath, and VCO are registeredMetro Ethernet from Cisco Press looks at the deployment of metro data services from a holistictrademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.view. It describes the current metro, which is based on TDM technology, and discusses thedriverschallengescarriers willfacedocumentin transformingmetroto addressservices.All otherandtrademarksmentionedin thisor Webthesiteare thepropertydataof theirrespectiveowners. The use of the word partner does not imply a partnership relationship between CiscoMetro Ethernet discusses the adoption of metro Ethernet services and how that has led carriersand any other company. (0303R)to the delivery of metro data services. With a changing mix of transport technologies, the bookthenexaminescurrent and emerging trends, and delves into the role of virtual private networksPrintedin the USA(VPN), virtual private local area networks (VLAN), virtual private LAN services (VPLS), trafficengineering, and MPLS and Generalized MPLS (GMPLS).DedicationsI dedicate this book to my wonderful family, who spent many nights and weekends alone to helpme finish the manuscript. To my lovely wife, Roula, I promised you after the IRA book that I

wouldn't write another book. Sorry I lied. Thank you for supporting me. To my sons, Joe andJason, I love you both for the sacrifices you had to make during the last year for me to finish thisbook. Table of Contents IndexMetro EthernetBySam HalabiPublisher: Cisco PressPub Date: October 01, 2003ISBN: 1-58705-096-XPages: 240The definitive guide to Enterprise and Carrier Metro Ethernet applications.Discover the latest developments in metro networking, Ethernet, and MPLS services andwhat they can do for your organizationLearn from the easy-to-read format that enables networking professionals of all levels tounderstand the conceptsGain from the experience of industry innovator and best-selling Cisco Press author, SamHalabi, author of Internet Routing ArchitecturesMetro networks will emerge as the next area of growth for the networking industry and willrepresent a major shift in how data services are offered to businesses and residential customers.The metro has always been a challenging environment for delivering data services because it hasbeen built to handle the stringent reliability and availability needs for voice. Carriers will have togo through fundamental shifts to equip the metro for next-generation data services demandedby enterprise customers and consumers. This is not only a technology shift, but also a shift in theoperational and business model that will allow the incumbent carriers to transform the metro tooffer enhanced data services.Metro Ethernet from Cisco Press looks at the deployment of metro data services from a holisticview. It describes the current metro, which is based on TDM technology, and discusses thedrivers and challenges carriers will face in transforming the metro to address data services.Metro Ethernet discusses the adoption of metro Ethernet services and how that has led carriersto the delivery of metro data services. With a changing mix of transport technologies, the bookthen examines current and emerging trends, and delves into the role of virtual private networks(VPN), virtual private local area networks (VLAN), virtual private LAN services (VPLS), trafficengineering, and MPLS and Generalized MPLS (GMPLS).

About the AuthorMr. Halabi is a seasoned executive and an industry veteran with more than 18 years ofexperience marketing and selling to the worldwide Enterprise and Carrier networking markets.Whileat Cisco,heofwrotethe first Cisco Internet routing book, Internet Routing Architectures, a TableContentsbest-sellerintheU.S.andinternational markets. He has held multiple executive management Indexpositionsinthefieldofmarketing,sales, and business development and has been instrumentalMetro Ethernetin evolving fast-growing businesses for the Enterprise and Carrier Ethernet markets.BySam HalabiPublisher: Cisco PressPub Date: October 01, 2003ISBN: 1-58705-096-XPages: 240The definitive guide to Enterprise and Carrier Metro Ethernet applications.Discover the latest developments in metro networking, Ethernet, and MPLS services andwhat they can do for your organizationLearn from the easy-to-read format that enables networking professionals of all levels tounderstand the conceptsGain from the experience of industry innovator and best-selling Cisco Press author, SamHalabi, author of Internet Routing ArchitecturesMetro networks will emerge as the next area of growth for the networking industry and willrepresent a major shift in how data services are offered to businesses and residential customers.The metro has always been a challenging environment for delivering data services because it hasbeen built to handle the stringent reliability and availability needs for voice. Carriers will have togo through fundamental shifts to equip the metro for next-generation data services demandedby enterprise customers and consumers. This is not only a technology shift, but also a shift in theoperational and business model that will allow the incumbent carriers to transform the metro tooffer enhanced data services.Metro Ethernet from Cisco Press looks at the deployment of metro data services from a holisticview. It describes the current metro, which is based on TDM technology, and discusses thedrivers and challenges carriers will face in transforming the metro to address data services.Metro Ethernet discusses the adoption of metro Ethernet services and how that has led carriersto the delivery of metro data services. With a changing mix of transport technologies, the bookthen examines current and emerging trends, and delves into the role of virtual private networks(VPN), virtual private local area networks (VLAN), virtual private LAN services (VPLS), trafficengineering, and MPLS and Generalized MPLS (GMPLS).

About the Technical ReviewersMike Bernico is a senior networking engineer at the Illinois Century Network. In this position,he focuses primarily on network design and integrating advanced network services such as QoS,IP Multicast, IPv6, and MPLS into the network. He has also authored open-source software of Contentsrelated to hisTableinterestsin new networking technologies. He enjoys reading and spending time in Indexthe lab increasing his knowledge of the networking industry. He lives in Illinois with his wifeMetroEthernetJayme.He can be contacted at mike@bernico.net.BySam HalabiMark Gallo is a technical manager with America Online. His network certifications include CiscoCCNP and Cisco CCDP. He has led several engineering groups responsible for designing andPublisher: Cisco Pressimplementing enterprise LANs and international IP networks. He has a BS in electricalPub Date: October 01, 2003engineeringfrom the University of Pittsburgh. He resides in northern Virginia with his wife,1-58705-096-XBetsy, ISBN:and son,Paul.Pages: 240Giles Heron is the principal network architect for PacketExchange, a next-generation carrierproviding Ethernet services on a global basis. He designed PacketExchange's MPLS network andhas been instrumental in the development of its service portfolio. A cofounder ofPacketExchange, he previously worked in the Network Architecture group at Level(3)Communications.HetoisEnterprisecoauthor oftheCarrierdraft-martinispecificationfor transport of Layer 2The definitive guideandMetro Ethernetapplications.protocols over IP and MPLS networks and the draft-lasserre-vkompella specification foremulation of multipoint Ethernet LAN segments over MPLS, as well as various other Internetdrafts.Discover the latest developments in metro networking, Ethernet, and MPLS services andwhat they can do for your organizationIrwin Lazar is practice manager for Burton Group in its Networks and Telecom group,managingteamtheof consultantsadviseend-userorganizationson largeenablesnetworkingprofessionalsof alllevels s.HeadministersTheMPLSResourceunderstand the conceptsCenter (http://www.mplsrc.com) and is the conference director for the MPLScon Conference andExhibition.Gain fromHe hasthepublishedexperiencenumerousof industryarticlesinnovatoron topicsand relatingbest-sellingto dataCisconetworkingPress author,and SamtheInternetHalabi,and authoris a frequentof InternetspeakerRoutingon networking-relatedArchitecturestopics at many industry conferences.He holds a bachelor's degree in management information systems from Radford University andMetronetworkswill emergethe next Heareagrowthfor thenetworkingSystemsindustrySecurityand willanMBAfrom GeorgeMason asUniversity.is ofalsoa CertifiedInformationrepresent a majorshift in how data services are offered to businesses and residential customers.Professional(CISSP).The metro has always been a challenging environment for delivering data services because it hasbeen built to handle the stringent reliability and availability needs for voice. Carriers will have togo through fundamental shifts to equip the metro for next-generation data services demandedby enterprise customers and consumers. This is not only a technology shift, but also a shift in theoperational and business model that will allow the incumbent carriers to transform the metro tooffer enhanced data services.Metro Ethernet from Cisco Press looks at the deployment of metro data services from a holisticview. It describes the current metro, which is based on TDM technology, and discusses thedrivers and challenges carriers will face in transforming the metro to address data services.Metro Ethernet discusses the adoption of metro Ethernet services and how that has led carriersto the delivery of metro data services. With a changing mix of transport technologies, the bookthen examines current and emerging trends, and delves into the role of virtual private networks(VPN), virtual private local area networks (VLAN), virtual private LAN services (VPLS), trafficengineering, and MPLS and Generalized MPLS (GMPLS).

AcknowledgmentsI would like to acknowledge many individuals who made this book possible. Many thanks to GilesHeron from PacketExchange for his thorough review of the material and to his manycontributionsto theMetro Ethern

Metro Ethernet from Cisco Press looks at the deployment of metro data services from a holistic view. It describes the current metro, which is based on TDM technology, and discusses the drivers and challenges carriers will face in transforming the metro to address data services.