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• Table of Contents • Index DWDM Network Designs and Engineering Solutions ByA shwin Gumaste, Tony Antony Publisher: Cisco Press Pub Date: December 13, 2002 ISBN: 1-58705-074-9 Pages: 368 A comprehensive book on DWDM network design and implementation solutions. Study various optical communication principles as well as communication methodologies in an optical fiber Design and evaluate optical components in a DWDM network Learn about the effects of noise in signal propagation, especially from OSNR and BER perspectives Design optical amplifier-based links Learn how to design optical links based on power budget Design optical links based on OSNR Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt Classify and design DWDM networks based on size and performance Understand and design nodal architectures for different classification of DWDM networks Comprehend different protocols for transport of data over the DWDM layer Learn how to test and measure different parameters in DWDM networks and optical systems The demand for Internet bandwidth grows as new applications, new technologies, and increased reliance on the Internet continue to rise. Dense wavelength division multiplexing (DWDM) is one technology that allows networks to gain significant amounts of bandwidth to handle this growing need. DWDM Network Designs and Engineering Solutions shows you how to take advantage of the new technology to satisfy your network's bandwidth needs. It begins by providing an understanding of DWDM technology and then goes on to teach the design, implementation, and maintenance of DWDM in a network. You will gain an understanding of how to analyze designs prior to installation to measure the impact that the technology will have on your bandwidth and network efficiency. This book bridges the gap between physical layer and network layer technologies and helps create solutions that build higher capacity and more resilient networks. • Table of Contents • Index DWDM Network Designs and Engineering Solutions ByA shwin Gumaste, Tony Antony Publisher: Cisco Press Pub Date: December 13, 2002 ISBN: 1-58705-074-9 Pages: 368 A comprehensive book on DWDM network design and implementation solutions. Study various optical communication principles as well as communication methodologies in an optical fiber Design and evaluate optical components in a DWDM network Learn about the effects of noise in signal propagation, especially from OSNR and BER perspectives Design optical amplifier-based links Learn how to design optical links based on power budget Design optical links based on OSNR Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt Classify and design DWDM networks based on size and performance Understand and design nodal architectures for different classification of DWDM networks Comprehend different protocols for transport of data over the DWDM layer Learn how to test and measure different parameters in DWDM networks and optical systems The demand for Internet bandwidth grows as new applications, new technologies, and increased reliance on the Internet continue to rise. Dense wavelength division multiplexing (DWDM) is one technology that allows networks to gain significant amounts of bandwidth to handle this growing need. DWDM Network Designs and Engineering Solutions shows you how to take advantage of the new technology to satisfy your network's bandwidth needs. It begins by providing an understanding of DWDM technology and then goes on to teach the design, implementation, and maintenance of DWDM in a network. You will gain an understanding of how to analyze designs prior to installation to measure the impact that the technology will have on your bandwidth and •• TTaabbllee ooff CCoonntteennttss •• IInnddeexx DDWWDDMM NNeettwwoorrkk DDeessiiggnnss aanndd EEnnggiinneeeerriinngg SSoolluuttiioonnss BByyAA sshhwwiinn GGuummaassttee,, TToonnyy AAnnttoonnyy PPuubblliisshheerr:: CCiissccoo PPrreessss PPuubb DDaattee:: DDeecceemmbbeerr 1133,, 22000022 IISSBBNN:: 11--5588770055--007744--99 PPaaggeess:: 336688 Copyright A comprehensive book on DWDM network design and implementation solutions. About the Authors About the Technical Reviewers SActkundowy levdagrmioenutss optical communication principles as well as communication methodologies in aInntr oodpuctitcioanl fiber Goals and Methods DeWshigo nS haonuldd Reevaadl uThaiste B ooopk?tical components in a DWDM network How This Book Is Organized Learn about the effects of noise in signal propagation, especially from OSNR and BER p Cehrasppteer c1t.i v Ientsroduction to Optical Networking WDM DeOspigticns : oApnt Uicpadal taemplifier-based links Fiber Learn how to design optical links based on power budget Fiber Losses DeDsisigpenr soiopnt iinc aFilb elirnks based on OSNR Nonlinearities DeWsiingdno wa o rf eOapel rDatWionDsM network with impairment due to OSNR, dispersion, and gain tilt Fiber Types Classify and design DWDM networks based on size and performance Units of Optical Power Measurement: Decibel UnAd Peorinstt-aton-dPo iannt Wd DdMe sNiegtwno nrkodal architectures for different classification of DWDM networks Emerging Technologies: WDM Versus TDM, OCDM, and SCM CoSmumpmreahryend different protocols for transport of data over the DWDM layer References Learn how to test and measure different parameters in DWDM networks and optical Chapter 2. Networking with DWDM -1 systems Optical Transmitters: Lasers T he demMaodnudla tfioonr: IDnirteecrt naendt Ebxatenrdnawlidth grows as new applications, new technologies, and increased r e lia nceO optnic atlh Ree cIenivteersr:n Pehto tcoodnetteicnteures to rise. Dense wavelength division multiplexing (DWDM) is one t e ch noloCgouyp ltehrsa atn ad lCloirwcusla tnoerstworks to gain significant amounts of bandwidth to handle this growing n ee d. DCWavDitiMes Nanedt wFiloterrk Designs and Engineering Solutions shows you how to take advantage of t h e newC otmecphlenx oCloomgpyo nteon tssa: tTirsafnys pyoonduerr snetwork's bandwidth needs. It begins by providing an understanding of DWDM technology and then goes on to teach the design, implementation, and Switches maintenance of DWDM in a network. You will gain an understanding of how to analyze designs Analysis of the Node prior to installation to measure the impact that the technology will have on your bandwidth and Summary References Chapter 3. Networking with DWDM -2 A Typical Optical Amplifier Doped Fiber Amplifiers Raman Amplifier SOA—Semiconductor Optical Amplifiers • Table of Contents Dispersion Compensation Techniques: Pre- and Postcompensation • Index Dispersion Compensation Using Fibers DWDM Network Designs and Engineering Solutions Polarization Mode Dispersion and Compensation Techniques ByA shwin Gumaste, Tony Antony Summary References Publisher: Cisco Press Chapter 4. WDM Network Design -1 Pub Date: December 13, 2002 Introduction to Optical Design ISBN: 1-58705-074-9 Factors That Affect System Design Pages: 368 Effect of Chromatic Dispersion on Transmission Length and Induced Power Penalty Design of a Point-to-Point Link Based on Q-Factor and OSNR Calculation of Q-Factor from OSNR Margin Requirements A co mpDreeshigenn Usisvineg bChoroomk aotinc DDisWpeDrsMion n Ceotmwpoenrska tdioensign and implementation solutions. OSNR and Dispersion-Based Design Frequency Chirp StEufdfeyc tsv aofr iFoWuMs aonpd tXiPcMa lo cno Lmonmg-Huanuilc Daetsiiognn principles as well as communication methodologies in an optical fiber PMD in Long-Haul Design DeEsxiagmnp laesnd evaluate optical components in a DWDM network Summary LeRaerfner eanbceosut the effects of noise in signal propagation, especially from OSNR and BER p Cehrasppteer c5t.i v WeDsM Network Design -2 WDM Pass-through Case—Virtual or Logical Topology Design Design optical amplifier-based links Classification of Optical Networks Based on Geographical Sizes and Functionality LeMaertnro h Aoccwes tso N edtweosrigksn optical links based on power budget Metro Core Networks DeLsoinggn-H oaupl tNicetawl olriknsks based on OSNR Nodal Architectures and the Optical Service Channel Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt Nodal Architectures for Different Network Markets ClaOspsticifayl Saynstdem d eDsesigignn DWDM networks based on size and performance Access Network Design UnMdeetrrosptoalintadn Aarnead Ndeetwsoigrkn ( Mneotrdoa Cl oarer)c Dheitseigcntures for different classification of DWDM networks Long-Haul System Design Comprehend different protocols for transport of data over the DWDM layer Forward Error Correction LeWarDnM hSoyswte mto D teesisgtn :a Cnodm pmoneeanstsu arned dSiufbfesyrsetenmt pCoanrsaidmereattieonrs in DWDM networks and optical syQstueesmtiosns Summary T he demReafnerden fcoesr Internet bandwidth grows as new applications, new technologies, and increased reliance on the Internet continue to rise. Dense wavelength division multiplexing (DWDM) is one Chapter 6. Network Level Strategies in WDM Network Design: Routing and Wavelength Assignment technology that allows networks to gain significant amounts of bandwidth to handle this growing Routing and Wavelength Assignment: The Basic Problem need. DWDM Network Designs and Engineering Solutions shows you how to take advantage of t h e newF otremcuhlantoinlgo tghye Wtoa vsealetnigstfhy Aysosiugnrm neentt wProorbkle'ms bandwidth needs. It begins by providing an u nd erstRaonudtiningg a nodf WDaWveDlenMgt hte Acshsingnomloegnty a andn dIn ttehgeern L igneoaers P roongr atmo mteinagc Fho rtmhuela tdioenssign, implementation, and m ai ntenTahen cGera pohf CDoWlorDingM A ipnp raoa cnhe ttow thoer kW.a Yveoleun gwthil lA sgsaiginnm aennt Purnobdleemrstanding of how to analyze designs p rio r to Sitnatsict aalnlad tDioynna mtoic mLigehatpsauthr eE stthabel isihmmpenatct that the technology will have on your bandwidth and Virtual Topology Design Some Corollaries on Routing and Wavelength Assignment Blocking Probability Computation in Optical Networks Summary References Chapter 7. X over DWDM Gigabit Ethernet/ 10Gigabit Ethernet (Optical Ethernet) • Table of Contents Ethernet Passive Optical Networks (EPON) • Index SONET/SDH DWDM Network Designs and Engineering Solutions Dynamic Packet Transport (DPT) / Resilient Packet Ring (RPR) ByA shwin Gumaste, Tony Antony IP over DWDM Summary Publisher: Cisco Press References Pub Date: December 13, 2002 Chapter 8. Future WDM Networks and Technologies ISBN: 1-58705-074-9 Burst Switching Pages: 368 Burst-Switched Network Algorithms MPLS and Burst Switching Photonic Slot Routing Contention Resolution Using Delay Lines A co mp4re0 hGebpnss Sivyest ebmosok on DWDM network design and implementation solutions. Resource Reservation Protocol and Traffic Engineering in the Optical Layer Optical Cross-Connect Technology StHuOdRyN vETa:r (ioHyubsr ido pOtpitcoa-Ell eccotrmonmic uRinngic Naettiwoonr kp)rinciples as well as communication methodologies in an optical fiber Burst-Mode Receivers DeVsisigionn oaf nadn Oepvtaiclaul aIntteer noepttical components in a DWDM network Self-Similarity in Internet Traffic and Its Effect on Optical Networks LeTarranns paabroenutt O tphtieca el Nffeetwctosrk sof noise in signal propagation, especially from OSNR and BER peSrusmpmecatriyves References Design optical amplifier-based links Chapter 9. Tests and Measurements LeTaersnt ahnod wMe taosu drinegs iDgenv icoepstical links based on power budget Characterization of a WDM Multiplexer/Demultiplexer and Optical Add/Drop Unit DeEsDiFgAn T eosptitnigcal links based on OSNR Optical Waveform Analysis Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt Complete WDM End-to-End Testing ClaSusmsimfya raynd design DWDM networks based on size and performance References U Cnhadpeterrs t1a0.n dS imanuldat idoness iogf nW DnMo dSyaslt eamrcshitectures for different classification of DWDM networks Need for Simulation Comprehend different protocols for transport of data over the DWDM layer Inside the CD-ROM in This Book LeSatrannd haloonwe tVoe rstuess tC oallnabdo rmatievea sDuerseig nd Tifofoelsrent parameters in DWDM networks and optical syVsPteItmranssmissionMaker Simulation Technology Photonic Component Design T he demCaasne dS tfuodrie sInternet bandwidth grows as new applications, new technologies, and increased reliance on the Internet continue to rise. Dense wavelength division multiplexing (DWDM) is one Summary technology that allows networks to gain significant amounts of bandwidth to handle this growing References need. DWDM Network Designs and Engineering Solutions shows you how to take advantage of t h e ne Bwib ltioegcrhapnhoylogy to satisfy your network's bandwidth needs. It begins by providing an u nder s Styastnemdi nRegq uoirf eDmWentDs Man dt eRcehconmomloegndya taionnds then goes on to teach the design, implementation, and m ai ntenHaanrdcwea roe fR DeqWuirDemMe nints a network. You will gain an understanding of how to analyze designs p rio r to Sionftswtaarlela Rteiqounir etmo emntseasure the impact that the technology will have on your bandwidth and Index • Table of Contents • Index DWDM Network Designs and Engineering Solutions ByA shwin Gumaste, Tony Antony Publisher: Cisco Press Pub Date: December 13, 2002 ISBN: 1-58705-074-9 Pages: 368 A comprehensive book on DWDM network design and implementation solutions. Study various optical communication principles as well as communication methodologies in an optical fiber Design and evaluate optical components in a DWDM network Learn about the effects of noise in signal propagation, especially from OSNR and BER perspectives Design optical amplifier-based links Learn how to design optical links based on power budget Design optical links based on OSNR Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt Classify and design DWDM networks based on size and performance Understand and design nodal architectures for different classification of DWDM networks Comprehend different protocols for transport of data over the DWDM layer Learn how to test and measure different parameters in DWDM networks and optical systems The demand for Internet bandwidth grows as new applications, new technologies, and increased reliance on the Internet continue to rise. Dense wavelength division multiplexing (DWDM) is one technology that allows networks to gain significant amounts of bandwidth to handle this growing need. DWDM Network Designs and Engineering Solutions shows you how to take advantage of the new technology to satisfy your network's bandwidth needs. It begins by providing an understanding of DWDM technology and then goes on to teach the design, implementation, and maintenance of DWDM in a network. You will gain an understanding of how to analyze designs prior to installation to measure the impact that the technology will have on your bandwidth and Copyright Copyright© 2003 Cisco Systems, Inc. Published by: • Table of Contents Cisco Press • Index 201 West 103rd Street DWDM Network Designs and Engineering Solutions Indianapolis, IN 46290 USA ByA shwin Gumaste, Tony Antony 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 and recording, or by any information Publisher: Cisco Press storage and retrieval system, without written permission from the publisher, except for the Pub Date: December 13, 2002 inclusion of brief quotations in a review. ISBN: 1-58705-074-9 PrintedPa gines t: h3e68 United States of America 1 2 3 4 5 6 7 8 9 0 First Printing December 2002 Library of Congress Cataloging-in-Publication Number: 619472050743 A comprehensive book on DWDM network design and implementation solutions. Warning and Disclaimer Study various optical communication principles as well as communication methodologies in an optical fiber This book is designed to provide information about DWDM networks. Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. Design and evaluate optical components in a DWDM network The information is provided on an "as is" basis. The authors, Cisco Press, and Cisco Systems, Learn about the effects of noise in signal propagation, especially from OSNR and BER Inc. shall have neither liability nor responsibility to any person or entity with respect to any loss perspectives or damages arising from the information contained in this book or from the use of the discs or programs that may accompany it. Design optical amplifier-based links The opinions expressed in this book belong to the authors and are not necessarily those of Cisco Learn how to design optical links based on power budget Systems, Inc. Design optical links based on OSNR Trademark Acknowledgments Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt All terCmlass smifeyn atniodn edde sinig nth DisW bDooMk ntehtawt oarrkes kbnaoswedn oton bseiz etr aadnedm paerrkfosr omra snecrevice marks have been appropriately capitalized. Cisco Press or Cisco Systems, Inc. cannot attest to the accuracy of this Understand and design nodal architectures for different classification of DWDM networks information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. Comprehend different protocols for transport of data over the DWDM layer FeeLedabrna hcowk t oI ntesfto arndm maeatsiuoren different parameters in DWDM networks and optical systems TAht eC idsecmo aPnreds sfo, ro Iunrt geronael ti sb taon dcrweiadtteh ignr-odweps tahs t encehwn iacpapl lbicoaotkiosn osf, tnheew h tigechhensot lqougaielist,y aanndd invacrlueea.sed rEealciahn bceo ookn i sth cer aIfntteedr nweitt hc ocnatrien uaen dto p rriescei.s iDonen, suen dwearvgeolienngg rthig odrivoiussio dne mveullotpipmleexnint gth (aDt WinDvMol)v eiss othnee tuencihqnuoel oegxyp etrhtaiste a ollfo wmse mnebtewrosr okfs tthoe g parionf essigsnioifnicaal ntet cahmniocuanl tcso omf mbaunnditwy.idth to handle this growing need. DWDM Network Designs and Engineering Solutions shows you how to take advantage of Reader feedback is a natural continuation of this process. If you have any comments regarding the new technology to satisfy your network's bandwidth needs. It begins by providing an how we could improve the quality of this book, or otherwise alter it to better suit your needs, understanding of DWDM technology and then goes on to teach the design, implementation, and you can contact us through e-mail at [email protected]. Please be sure to include the maintenance of DWDM in a network. You will gain an understanding of how to analyze designs book title and ISBN in your message. prior to installation to measure the impact that the technology will have on your bandwidth and We greatly appreciate your assistance. Publisher John Wait Editor-In-Chief John Kane Cisco Repres entative Anthony Wolfenden • Table of Contents Cisco Press Program Manager Sonia Torres Chavez • Index DCWisDcMo NMeatwrkorekt iDnegs iCgnosm amndu Ennigcianteioerninsg SolutionTsom Geitner BMyA asnhwagine Grumaste, Tony Antony Cisco Marketing Program Manager Edie Quiroz Publisher: Cisco Press Acquisitions Editor Amy Moss Pub Date: December 13, 2002 ProduIcStBioNn: 1M-5a8n70a5g-0e7r4-9 Patrick Kanouse Pages: 368 Development Editor Howard Jones Project Editor San Dee Phillips Copy Editor Karen A. Gill A comprehensive book on DWDM network design and implementation solutions. Technical Editors Tim Benner, Wayne Hickey, Arthur Lowery, Steve Wisniewski Study various optical communication principles as well as communication methodologies in Team Coordinator Tammi Ross an optical fiber Book Designer Gina Rexrode Design and evaluate optical components in a DWDM network Cover Designer Louisa Adair Learn about the effects of noise in signal propagation, especially from OSNR and BER Composition ContentWorks perspectives Indexer Tim Wright Design optical amplifier-based links Learn how to design optical links based on power budget Design optical links based on OSNR Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt CorpoCrlaastseif Hy eaandd qdueasrigtne rDsWDM networks based on size and performance Cisco Systems, Inc. 170 WUensdte Trsatsamnadn a Dndri vdeesign nodal architectures for different classification of DWDM networks San Jose, CA 95134-1706 USA Comprehend different protocols for transport of data over the DWDM layer http://www.cisco.com Tel: 4Le0a8r n5 2h6o-w40 t0o0 test and measure different parameters in DWDM networks and optical 8s0y0s t5e5m3-sNETS (6387) Fax: 408 526-4100 The demand for Internet bandwidth grows as new applications, new technologies, and increased reliance on the Internet continue to rise. Dense wavelength division multiplexing (DWDM) is one tEeucrhonpoeloagny Htheaatd aqlluoawrst enrestworks to gain significant amounts of bandwidth to handle this growing nCeisecdo. SDyWstDemM sN Eeutwrooprek Designs and Engineering Solutions shows you how to take advantage of t1h1e R nueew C taemchilnleo lDogeysm too uslaintissfy your network's bandwidth needs. It begins by providing an u92nd7e8r2s tIasnsyd-inlegs -oMf oDuWlinDeMa utxechnology and then goes on to teach the design, implementation, and mCeadinetxe 9nance of DWDM in a network. You will gain an understanding of how to analyze designs pFrraionrc teo installation to measure the impact that the technology will have on your bandwidth and http://www-europe.cisco.com Tel: 33 1 58 04 60 00 Fax: 33 1 58 04 61 00 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive • Table of Contents San Jose, CA 95134-1706 • Index USA DWDM Network Designs and Engineering Solutions http://www.cisco.com BTyeA ls:h w4i0n 8G u5m2a6s-t7e6, T6o0ny Antony Fax: 408 527-0883 Publisher: Cisco Press Pub Date: December 13, 2002 Asia Pacific Headquarters ISBN: 1-58705-074-9 Cisco Systems Australia, Pty., LPtadges: 368 Level 17, 99 Walker Street North Sydney NSW 2059 Australia http://www.cisco.com ATe cl:o m+6p1re 2h e8n4s4iv8e 7b1o0o0k on DWDM network design and implementation solutions. Fax: +61 2 9957 4350 ArgenSttinuad y• vAaursiotruasl iao p•t iAcauls ctroiam •m Buenligciautmion • pBrrinazciipl l•e sB ualsg awreiall •a sC caonmadmau •n Cichaitlieo n• mCheitnhao d• oCloogloiemsb iina • Cosatan Roipctai c•a lC friobaetria • Czech Republic • Denmark • Dubai, UAE • Finland • France • Germany • Greece • Hong Kong • Hungary • India • Indonesia • Ireland • Israel • Italy • Japan • Korea • Design and evaluate optical components in a DWDM network Luxembourg • Malaysia • Mexico • The Netherlands • New Zealand • Norway • Peru • Philippines • Poland • Portugal • Puerto Rico • Romania • Russia • Saudi Arabia • Scotland • Singapore • Learn about the effects of noise in signal propagation, especially from OSNR and BER Slovakia • Slovenia • South Africa • Spain • Sweden • Switzerland • Taiwan • Thailand • Turkey perspectives • Ukraine • United Kingdom • United States • Venezuela • Vietnam • Zimbabwe Design optical amplifier-based links Copyright © 2000, Cisco Systems, Inc. All rights reserved. Access Registrar, AccessPath, Are You Ready, ATM Director, Browse with Me, CCDA, CCDE, CCDP, CCIE, CCNA, CCNP, CCSI, CD-PAC, Learn how to design optical links based on power budget CiscoLink, the Cisco NetWorks logo, the Cisco Powered Network logo, Cisco Systems Networking Academy, Fast Step, FireRunner, Follow Me Browsing, FormShare, GigaStack, IGX, Intelligence Design optical links based on OSNR in the Optical Core, Internet Quotient, IP/VC, iQ Breakthrough, iQ Expertise, iQ FastTrack, iQuick Study, iQ Readiness Scorecard, The iQ Logo, Kernel Proxy, MGX, Natural Network Viewer, Design a real DWDM network with impairment due to OSNR, dispersion, and gain tilt Network Registrar, the Networkers logo, Packet, PIX, Point and Click Internetworking, Policy BuildeCrl,a sRsaiftye MaUndX ,d ReesyigMna DstWerD, MR enyeVtwieowr,k Ss cbraipsteSdh oanre s, iSzee caunrde pSecrrfioprt,m Sahnocpe with Me, SlideCast, SMARTnet, SVX, TrafficDirector, TransPath, VlanDirector, Voice LAN, Wavelength Router, WorkgUrnoduepr sDtairnedc taonr,d a dneds iWgno rnkogdraolu apr Schtaitcekc taurree st rfaodre dmifaferrkesn ot fc Claisscsoif iScaytsiotenm osf, DInWcD.;M C nhaetnwgoinrgk sthe Way We Work, Live, Play, and Learn, Empowering the Internet Generation, are service marks of Cisco CSoymstpermehs,e nIndc d.;if afenrde nAti rpornoetot,c oAlSsI fSoTr ,t BraPnXs,p Coartt aolfy sdta, tCai socvoe,r tthhee CDisWcoD MCe lratyifeierd Internetwork Expert Logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, Learn how to test and measure different parameters in DWDM networks and optical the Cisco Systems logo, Collision Free, Enterprise/Solver, EtherChannel, EtherSwitch, FastHub, systems FastLink, FastPAD, IOS, IP/TV, IPX, LightStream, LightSwitch, MICA, NetRanger, Post-Routing, Pre-Routing, Registrar, StrataView Plus, Stratm, SwitchProbe, TeleRouter, are registered The demand for Internet bandwidth grows as new applications, new technologies, and increased trademarks of Cisco Systems, Inc. or its affiliates in the U.S. and certain other countries. reliance on the Internet continue to rise. Dense wavelength division multiplexing (DWDM) is one technology that allows networks to gain significant amounts of bandwidth to handle this growing All other brands, names, or trademarks mentioned in this document or Web site are the property need. DWDM Network Designs and Engineering Solutions shows you how to take advantage of of their respective owners. The use of the word partner does not imply a partnership relationship the new technology to satisfy your network's bandwidth needs. It begins by providing an between Cisco and any other company. (0010R) understanding of DWDM technology and then goes on to teach the design, implementation, and maintenance of DWDM in a network. You will gain an understanding of how to analyze designs prior to installation to measure the impact that the technology will have on your bandwidth and
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