The softwaredefined optical networking sdon paradigm enables programmable, adaptive and applicationaware backbone networks. Original phone networks has real circuit switching. The data plane, the control plane and the management plane are the three basic components of a telecommunications architecture. Control plane design for reliable optical networks. The control plane is that part of a network which carries information necessary to establish and control the network.
Pdf control plane design for reliable optical networks. Sonet and sdhbased optical transport networks have been deployed extensively. The data plane sometimes known as the user plane, forwarding plane, carrier plane or bearer plane is the part of a network that carries user traffic. Section 5 discusses a framework for ip over optical networks, mpls, the signaling protocols ldp and crldp. In fact, a recent infonetics survey revealed that control plane was mentioned by more service providers than cost as one of the three most important. Novel optical control plane in nextgeneration ipwdm. Rfc 6163 framework for gmpls and path computation element pce control of wavelength switched optical networks wsons.
The control plane, data plane and forwarding plane in networks is the heart core dna in todays networking hardware to move ip packets from a to z. A dynamic approach to mib polling for software defined. A framework for traffic engineering of diverse traffic granularity entirely on opticallayer terms antonis hadjiantonis on. The gmpls control plane architecture for optical networks. Control plane design for reliable optical networks ieee.
It is part of the theoretical framework used to understand the flow of information packets between network interfaces. Optical transport networks typically deploy dynamic restoration mechanisms in order to automatically recover optical connections disrupted by network failures. Siva ram murthy, mohan gurusamy, wdm optical networks. Link management protocol lmp gmpls introduces the concept of lmp, which accommodates neighbor identification and link verification, as well as sharedrisk groups, fault isolation, and topologyaware networks. Conclusions this paper presented a proposal for signalling transport method in gmpls control plane networks. Optical networking technology underwent a major revolution in the 1990s as the old paradigm of sonetsdh systems to support circuitswitched connections. Also commonly called digital wrapper, otnor optical transport networkingis a nextgeneration, industrystandard protocol that provides an efficient and globally accepted way to multiplex different services onto optical light paths. This book fills the gap between optical network engineering and routingsignalinghelping both optical and ip professionals build networks that are more robust, flexible, manageable, and profitable. The book includes uptotheminute coverage of mpls, switching in optical networks, ipoveroptical, qos, and optical bandwidth on demand. Ason and gmpls the battle of the optical control plane. A hybrid method for signalling transport in gmpls control. Elastic optical networks eon, which are able to allocate an. Media access using media access control protocols mac protocols need to consider the network is high speed high speed network packet transmission time.
The gmpls control plane is an ipbased controller that employs ip protocols to operate the underlying optical network. No distinction between if1, if2 and routerrouter mpls control plane. If you are a network architect, network manager, or a consultant who designs, deploys, operates, or troubleshoots multiservice optical and dwdm networks, optical network design and implementation is your comprehensive guide to optical. Thats why this book is perfect for students and researchers in the field of technologies for optical networks specifically eons, including network architectures and planning, dynamic connection provisioning, online network reoptimization, and control and management planes. The control plane, data plane and forwarding plane in networks. With sometimes hundreds of nodes across a network, managing such a complex infrastructure requires a control plane that, given some parameters, will make decisions on its own thus the intelligent in intelligent control plane. Consequently, network control and management system that can efficiently allocate optical fiber spectrum resources and support energyefficient operation will be another exciting nearterm research focus. The portal can access those files and use them to remember the users data, such as their chosen settings screen view, interface language, etc. In this model, the transport plane carries the user data and comprises network equipment, such as line interface cards, switch fabrics, backplanes and fiber plant. New strategic initiatives advance transformation of. Sdn separates the control plane from the data plane with its centralised architecture compared with the distributed approach used in other management systems. The separation of control and data plane pushed the development of logically centralized controller entities.
Typically, therefore, an optical switch completely separates its control plane. An optical transport network otn is an interconnection of optical switches and optical fiber links. Optical virtual private networks via a sdngmpls control plane. This standard defines the context, terminology, and architectural options for a gmpls control plane applied to wson networks. Alarm classification prediction based on crosslayer. It is one of the first books to present detailed coverage of the new optical link management protocol, designed to simplify the configuration and management of nextgeneration optical networks. Pdf the application of an ipbased control plane to optical networks has opened up new opportunities and challenges for network designers. To really understand software defined networks sdns, we need to start from a place far different than the top of the current hype cycle. The ramifications of this technology are manifold, affecting the architecture, operation, and economics of. Recently, various optical networks have been proposed for chipscale communication on largescale manycore chips, including optical burstswitching obs.
A telecommunications network is a collection of terminal nodes, links and any intermediate nodes which are connected so as to enable telecommunication between the terminals the transmission links connect the nodes together. Foisel, tsystems deutsche telekom oif carrier wg chair, oif vice president. And as it turns out, service providers are increasingly focused on the need for an optical control plane. The control plane and management plane serve the data plane, which. The future optical network management and control plane is expected to be more versatile, scalable, automatic, and resourceefficient. Osa dynamic restoration with gmpls and sdn control plane.
Moreover, it is fully applicable to scenarios in which some domains are managed by a distributed control plane gmpls while others are managed by a centralized control plane such as openflow 7, 14, as illustrated in fig. Sdn is applicable to optical network, and the optical network integrated with sdn, namely. However, management systems are still required to adapt the new emerging sdnlike. Sdngmpls for optical networks how to leverage existing gmpls control plane for sdn. Although much work has been done on standardization of protocols for ip networks, the applicability of these protocols to controlling optical networks and the overall reliability of optical networks needs further investigation. The author thanks all colleagues from the oif for their work, which has been the basis for this tutorial the responsibility for the content of this tutorial is with the author hansmartin. The continuously increasing traffic of internet services cloud services, video streaming, social networks, and recently, internet of things services is leading to huge traffic growth in core optical networks. It is therefore important to understand the fundamentals of these technologies before delving into the details of the control plane mechanisms. The application of an ipbased control plane to optical networks has opened up new opportunities and challenges for network designers. Iit kanpur 15 introduction to optical networks optical tdma, cdma implementations need very. Optical network models and their application to software. The application of an ipbased control plane to optical networks has opened up new opportunities. Control plane robustness in softwaredefined optical.
The company will build additional control plane technology into its network infrastructure technology that allows electronic devices on its optical network to more easily communicate with each. A tutorial on optical networks department of computer science at. This book fills the gap between optical network engineering and. A comprehensive survey akhilesh thyagaturu, anu mercian, michael p.
Optical network design and planning takes a pragmatic approach to deploying stateoftheart optical networking equipment in metrocore and backbone networks. Differences between ip and optical routing although ip routing protocols are being extended for routing connections in optical networks, there are major differences between routing in circuit switched optical selection from optical network control. Telecommunications industry and service provider networks must quickly. The overall throughput of obs network is dually constrained by congestion and loss in both the dataplane i. At its core, an intelligent optical control plane is software that controls all aspects of configuring connections between optical switches across a network. Optical transport network an overview sciencedirect topics. A survey on transition from gmpls control plane for. Network virtualization allows multiple networks to be deployed over the same infrastructure, and has been successfully applied to several.
Planning and provisioning strategies for optical core networks. Paul goransson, chuck black, in software defined networks, 2014. Optical impairmentaware wson control plane for cisco ons. Optical network control is the first expert guide and singlesource reference for controlling and managing optical networks. Global service provider survey 20 indicated that 96 percent of service providers will deploy otn switching in the core, and over 90. Controller is a logical entity that models all control plane intelligence routing, traffic engineering te, and signaling protocols, path computation, etc. In optical networks data are transmitted over electromagnetic waves multiplexed by using wdm. Automatically switched optical network ason, optical networks, control plane introduction optical backbone networks, based on sdhsonet.
In the ietf, the optical control plane is referred to as generalized multiprotocol label switching, or gmpls 1. The management plane is another vital component but also widely excepted as user to hardware interaction. A single controller can manage one or more transport nodes. Toms, next generation optical networks and essential and essential guide to optical networks package, prentice hall, december 2001. Infonetics otn, mpls, and control plane strategies. It is a family of protocols that includes the following. Softwaredefined network sdnopenflow research and development have attracted the attention of many researchers and companies. Optical communication networks are considered the main catalyst for the transformation of. Instead, where we need to start is thinking about what a control plane actually does in a packet switched network. Novel optical control plane in nextgeneration ip wdm networks. Within the itut, the optical control plane initiative is referred to as automatic switched optical network ason 2. Computer network technologies and servicesprint version. In nonsson networks, this is not automatically managed by the control plane and the user must manage these constraints.
Concepts, design, and algorithms, prentice hall, november 2001, 448 pages. Book description optical network control is the first expert guide and singlesource reference for controlling and managing optical networks. It separates the control plane from the data plane and turns the control manner into a. Optical wdm networks, past lessons and path ahead book entitled optical wdm networks, past lessons and path ahead, chapter 1, kluwer academic publishers, 2004, pub type. For more information, see the creating optical channel circuits and provisionable patchcords chapter in cisco ncs 2000 series network configuration guide, release 11. Release notes for cisco ncs 2000 series, release 11. The nodes use circuit switching, message switching or packet switching to pass the signal through the correct links and nodes to reach the correct destination terminal. Elastic optical networks eons, currently emerging as the nextgeneration technology to be adopted in optical transport, introduce new challenges for traditional generic multiprotocol labelswitching gmplsbased restoration that may. British telecom, and major carriers throughout the united. They transmit bits using various encoding and multiplexing techniques. In the optical transport field, the control plane has been called different things by different standards bodies. However, aside from the man control plane robustness in softwaredefined optical networks under targeted fiber cuts ieee conference publication.
In the case of optical networks, every vendor has his own closed network management system nms with access to the devices through proprietary interfaces. Control plane techniques for elastic optical networks. Technology trends such as softwaredefined networking sdn are transforming networking services in terms of flexibility and faster deployment times. Alarm prediction in optical networks focuses on forecasting network failure from the state of equipment and links. Traditional transport networks can be modeled as the interaction of two operating planes. Optical networks control and management springerlink.
As a framework, this is an informational document and does not define any protocol extensions. This traffic evolution is pushing network operators to efficiently exploit their infrastructures in order to postpone, as much as possible, the expensive deployment of new infrastructures. A new method for controlplane congestion control in chip. Computer network technologies and serviceswan wikibooks.
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