The optical transport network otn system is structured in layered networks. Today, as discussed throughout this book, optical ofdm technologya mere. Optical transport network architecture pdf this document provides a tutorial for optical transport network standards and their. It provides very exhaustive and meticulous coverage of all aspects of dwdm technology ranging from the simplest of concepts in optical networking to the different intricacies involved in designing cost effective and efficient networks. Jul 17, 2012 transport comprises multiple programmable layers optical layer layer 0 optical capacity management optical routing osnr, optical impairments, frequency, protection capacity vs. This is not completely correct as gmpls is a family of protocols, but asonastn is an opticaltransport network architecture. Fractions of the optical power on the bus aretapped off to provide a signal to each subscriber. Optical transport networks training otn training course. Introduction to dwdm technology ol088401 optical fibers 26 how fiber works 26 multimode and singlemode fiber 27 singlemode fiber designs 28 transmission challenges 29 attenuation 29 dispersion 210 summary 212 light sources and detectors 2 light emittersleds and lasers 2 itu grid 214 light detectors 215 optical amplifiers 216. An overview on application of machine learning techniques in. Itut defines an optical transport network otn as a set of optical network elements one connected by optical fiber links, able to provide functionality of transport, multiplexing, switching, management, supervision and survivability of optical channels carrying client signals. It promotes discussion on optical network strategies regarding highdatarate and costoptimized architectures for these networks. Nfv concepts do not only apply to data plane functions i. Componentry and transmission are discussed in detail with emphasis on practical networking issues that affect organizations as they evaluate, deploy, or develop optical networks.
Optical network design and implementationcontains a broad range of technical details on multiservice optical networking and covers optical networking theory, design, and configuration by providing informative text, illustrations, and examples. Aug 09, 2007 a comprehensive, thorough introduction to highspeed networking technologies and protocols network infrastructure and architecture. This is not completely correct as gmpls is a family of protocols, but asonastn is. He is a member of the ibm academy of technology and coleader of the academy study innovation ecosystems. Optical network design and implementation networking. From a networking perspective, the increased complexity of the underlying transmission systems is re. It can be used for equipment modelling, network access modelling, and the network resource modelling. Pon is passive optical network featured with onetomultiplepoint architecture. It can be used as a reference for anyone designing, implementing, or supporting an optical network. An overview on application of machine learning techniques. The layered architecture model covers all the technology aspects of the optical transport network. Dwdm network designs and engineering solutions is truly one of its kind. A practical vision for optical transport networking.
This paper lays out this practical vision, placing it in context with other networking trends. He is coauthor of more than 120 technical papers, book chapters, and encyclopedia articles, and editor of the handbook of fiber optic data communication now in its 4rd edition. Optical network terminology sonetsdh synchronous optical network later called synchronous digital hierarchy this standard defines a synchronous frame structure for transmitting time division multiplexed signals. Opticalnetwork drivers many factors are driving the need for optical networks. An optical transport network otn is an interconnection of optical switches and optical fiber links. Optical transport networks training by tonex provides a comprehensive technical introduction to optical transport networks. Dwdm fundamentals, components, and applications jeanpierre laude. Contents iv introduction to dwdm technology ol088401 optical fibers 26 how fiber works 26 multimode and singlemode fiber 27 singlemode fiber designs 28 transmission challenges 29 attenuation 29 dispersion 210 summary 212 light sources and detectors 2 light emittersleds and lasers 2 itu grid 214 light detectors 215 optical amplifiers 216 erbiumdoped fiber amplifier 216. Sonet is the transport technology at the heart of virtually every highspeed optical network.
For this task, the definition of the layered architecture model for the optical transport network is considered to be a starting point. Handbook of fiber optic data communication 4th edition. Optical network control is the first expert guide and singlesource reference for controlling and managing optical networks. Application of wdm technology has introduced the optical layer between the lower. This book fills the gap between optical network engineering and routingsignalinghelping both optical selection from optical network control. At data plane, the elastic optical network eon concept 1215 has emerged as a novel optical network architecture able to.
Optical transport network architecture pdf download. Overview of optical networks the network as a cloud of information flows connecting different participants. Fiber capacity the first implementation of what has emerged as the optical network began on routes that were fiber limited. A practical vision for optical transport networks one that is widely deployable, highly reliable and maintainable, readily evolvable, and demonstrably cost effective is now at hand.
Lans and wans can be interconnected via t1 or t3 digital leased linesaccording to the protocols involved, networks interconnection is achieved using one or several of the following devices. Transport comprises multiple programmable layers optical layer layer 0 optical capacity management optical routing osnr, optical impairments, frequency, protection capacity vs. Network infrastructure and architecture wiley online books. Componentry and transmission are discussed in detail with emphasis on practical networking selection from optical networks, 3rd edition book. Optical transport network architecture, pdf, print, email. Bus topology figure below shows a generalised bus topology network. Heterogeneous wirelessoptical network infrastructures in support of mobile cloud. This book is not only essential reading for anyone in the optical networks industry, it is. Optical network design and implementation contains a broad range of technical details on multiservice optical networking and covers optical networking theory, design, and configuration by providing informative text, illustrations, and examples. Pdf this paper discusses the prospects of and challenges facing the next generation transport network architectures. Contents iv introduction to dwdm technology ol088401 optical fibers 26 how fiber works 26 multimode and singlemode fiber 27 singlemode fiber designs 28 transmission challenges 29 attenuation 29 dispersion 210 summary 212 light sources and detectors 2 light emittersleds and lasers 2 itu grid 214 light detectors 215 optical amplifiers 216 erbiumdoped fiber.
The optical layer provides lightpaths to other layers such as the sonetsdh, ipmpls, and ethernet layers, as well as the electronic layer of the optical transport network otn, which includes the the optical channel transport unit otu and optical channel data unit odu sublayers see section 6. Simple optical network architectures broadcast and distribution networks. Architecture of optical transport networks in force prepublished superseded and withdrawn components. They transmit bits using various encoding and multiplexing techniques.
Designing highavailability networks takes a unique approach to the subject by covering the ideas underlying networks, the architecture of the network elements, and the implementation of these elements in optical and vlsi technologies. The term astn replaces the term ason automatically switched optical network and is often used interchangeably with gmpls generalized mpls. Most service providers would agree that current and future optical transport services can be most efficiently supported over optical transport network otn architecture. Optical transport network an overview sciencedirect topics. All the networks using optical fiber as transmission medium optical networks when transmitted signal remains in optical form till its arrival at destination alloptical network. Over and over again, we have seen that presentday transport networks become. Optical networks architecture and survivability, is a stateofthepaintings work on survivable and worthenvironment friendly design of control and administration for networks with ip immediately over wavelength division multiplexing wdm technology or known as optical net. All the networks using optical fiber as transmission medium optical networks when transmitted signal remains in optical form till its arrival at destination all optical network. Otn was designed to provide support for optical networking using wavelengthdivision multiplexing wdm unlike its predecessor sonetsdh itut recommendation g.
Ciena experts books 7035 ridge rd hanover, md 21076. The book will cover detailed mpls theory, design, and implementation issues as well as two major mpls network case studies. Request pdf transport network architecture this chapter focuses on the description of transport network architecture suitable for 5g in terms of both user plane up and control plane cp. Also commonly called digital wrapper, otnor optical transport networking is a nextgeneration, industrystandard protocol that provides an efficient and globally accepted way to multiplex different services onto optical light paths. The bus is a high bandwidth optical fibre which traverses the entire distribution area. An one may retime, reamplify, reshape but it does not have to be 3r it can be purely photonic. Stmxx synchronous transfer module each bit rate is a multiple of the lowest level oc1 or stm1. In this paper, we present a network function virtualization nfv architecture to deploy different virtualized network functions vnf on an optical transport network. Otn is a digital wrapper that provides an efficient and globallyaccepted way to multiplex different services onto optical light paths. Optical transport networks have been migrating from sonet technology to wdm architectures over the past 510 years. Transport network function virtualization ieee journals. Optical fiber networks have high capacity can be used for providing the high bandwidth services even in wireless, infrared means high bandwidth connectivity. Experts define otn as a collection of optical network elements one that communicate using wavelength division multiplexing wdm.
Telecommunications industry and service provider networks must quickly. The optical transport hierarchy oth is a new transport technology for the optical transport network otn developed by the itu. Advantages of optical nets include greater bandwidth and speed. Pdf provides a 12channel interface, also using the optical mpo connector. It is based on the network architecture defined in itu g. Optical transport network layered architecture for the moonet. Deploying wdm systems has allowed carriers to tap enormous capacity by carrying multiple wavelengths over a single fiber. Advanced mpls design and implementation will provide readers with advanced knowledge of and solutions for mpls and will include advanced examples of mpls scenarios. It will also cover mpls vpn architecture, provisioning of internet access to customer vpns, and network. Paul goransson, chuck black, in software defined networks, 2014. History of pon the first passive optical network pon activity was initiated by the fsan group in the mid1990s. The optical transport network otn standards, defined by the itut g. A demonstration usecase of an openflowenabled optical virtual switch implementation managing a small optical transport network for.
Otn is an industrystandard optical transport protocol itu g. Advanced mpls design and implementation cisco press. Optical transport network otn fujitsu united states. Optical transport network otn is a protocol for sending network messaging over optical fiber networks. As shown in the following image, it comprises of optical line terminal olt, optical network unit and passive optical splitter. For carriers, this means significant cost savings compared to the cost of. The otn standards have been evolving within the itu since the early 90s, and most recently have been completely revised with respect to a standardsbased transport for carrier. A wdmbased transport network can be decomposed broadly into three layers, a physical media layer, an optical layer, and a client layer, as shown in fig. Longhaul core networks, also known as wide area networks wan or interchange carrier ixc public networks. The chapter gives an overview of stateoftheart optical transport networks otns. This conference will focus on the optical network architecture and components for metro networks, data centers and short reach data links including highperformance computing.
Interfaces for optical transport networks springerlink. Impact of 5g network architecture changes on bearer networks fronthaul network solutions for the cran architecture 5g fronthaul network changes and wdmotn bearer solution unified backhaul of fixedmobile convergence and otn bearer solution sdnbased optical networks effectively support the slicing and intelligent operation of 5g networks. Metro and data center optical networks and shortreach. Optical network drivers many factors are driving the need for optical networks. Optical networks, third edition continues to be the authoritative source for information on optical networking technologies and techniques. Optical transport networks are composed of a set of optical network elements connected by optical fibre links to provide functionality of transport, multiplexing, routing, management, supervision and survivability of optical channels carrying client signals. S artech house optoelectronics library includes bibliographical references and index. The single optical channel transport system based on sonetsdh standards. A comprehensive, thorough introduction to highspeed networking technologies and protocols network infrastructure and architecture. A few of the most important reasons for migrating to the optical layer are described in this module. With multiple clients transported on a single wavelength, otn provides an economical mechanism to fill optical network wavelengths. Astn automatic switched transport network allows traffic paths to be set up through a switched network automatically.
Architecture for digital transport networks, second edition gives communications engineers and other professionals an indepth understanding of every facet of sonet technologyincluding breakthrough ipoversonet optical internets, new. Optical networks architectures wdm wdm technology and. This standard defines a hierarchy among optical network elements and provides for performance management of complex dense wavelength division multiplexing dwdm networks. Optical transport network layered architecture for the. The role of optical networks optical network segments are categorized with respect to the size of the area they cover. The otn standards have been evolving within the itu since the early 90s, and most recently have been completely revised with respect to a standards. Gigabit passive optical network gpon tdm architecture, 2.
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