Novel optical control plane in nextgeneration ip wdm networks. To really understand software defined networks sdns, we need to start from a place far different than the top of the current hype cycle. Planning and provisioning strategies for optical core networks. A hybrid method for signalling transport in gmpls control. Typically, therefore, an optical switch completely separates its control plane. 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.
They transmit bits using various encoding and multiplexing techniques. Network virtualization allows multiple networks to be deployed over the same infrastructure, and has been successfully applied to several. Concepts, design, and algorithms, prentice hall, november 2001, 448 pages. Sdn separates the control plane from the data plane with its centralised architecture compared with the distributed approach used in other management systems. 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. In the ietf, the optical control plane is referred to as generalized multiprotocol label switching, or gmpls 1. Siva ram murthy, mohan gurusamy, wdm optical networks. Technology trends such as softwaredefined networking sdn are transforming networking services in terms of flexibility and faster deployment times. The gmpls control plane is an ipbased controller that employs ip protocols to operate the underlying optical network. Sdngmpls for optical networks how to leverage existing gmpls control plane for sdn.
Ason and gmpls the battle of the optical control plane. Optical networks control and management springerlink. Control plane techniques for elastic optical networks. Conclusions this paper presented a proposal for signalling transport method in gmpls control plane networks. 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.
Iit kanpur 15 introduction to optical networks optical tdma, cdma implementations need very. It is an architecture that defines the components in an optical control plane and the interactions between those components. Rfc 6163 framework for gmpls and path computation element pce control of wavelength switched optical networks wsons. 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. 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. However, aside from the man control plane robustness in softwaredefined optical networks under targeted fiber cuts ieee conference publication. A framework for traffic engineering of diverse traffic granularity entirely on opticallayer terms antonis hadjiantonis on. Computer network technologies and servicesprint version. 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. 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. Sonet and sdhbased optical transport networks have been deployed extensively. Those controllers are responsible for the configuration of the data plane. 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. Book description optical network control is the first expert guide and singlesource reference for controlling and managing optical networks.
Computer network technologies and serviceswan wikibooks. 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. 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. The future optical network management and control plane is expected to be more versatile, scalable, automatic, and resourceefficient. A new method for controlplane congestion control in chip. Traditional transport networks can be modeled as the interaction of two operating planes. Pdf the notion of an optical control plane has rapidly ascended from being a mere concept to a detailed set of protocol standards developed with broad. A single controller can manage one or more transport nodes. Optical network design and planning takes a pragmatic approach to deploying stateoftheart optical networking equipment in metrocore and backbone networks. The control plane and management plane serve the data plane, which. A dynamic approach to mib polling for software defined. 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.
For more information, see the creating optical channel circuits and provisionable patchcords chapter in cisco ncs 2000 series network configuration guide, release 11. It is therefore important to understand the fundamentals of these technologies before delving into the details of the control plane mechanisms. 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. Optical network models and their application to software. The softwaredefined optical networking sdon paradigm enables programmable, adaptive and applicationaware backbone networks. It separates the control plane from the data plane and turns the control manner into a. Alarm prediction in optical networks focuses on forecasting network failure from the state of equipment and links. Telecommunications industry and service provider networks must quickly. 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.
Optical communication networks are considered the main catalyst for the transformation of. 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. A survey on transition from gmpls control plane for. 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. Optical impairmentaware wson control plane for cisco ons. The application of an ipbased control plane to optical networks has opened up new opportunities. In the optical transport field, the control plane has been called different things by different standards bodies.
Automatically switched optical network ason, optical networks, control plane introduction optical backbone networks, based on sdhsonet. The management plane is another vital component but also widely excepted as user to hardware interaction. In optical networks data are transmitted over electromagnetic waves multiplexed by using wdm. The control plane is that part of a network which carries information necessary to establish and control the network. This book fills the gap between optical network engineering and. However, management systems are still required to adapt the new emerging sdnlike. It is a family of protocols that includes the following. The separation of control and data plane pushed the development of logically centralized controller entities. Pdf the application of an ipbased control plane to optical networks has opened up new opportunities and challenges for network designers. The gmpls control plane architecture for optical networks. Foisel, tsystems deutsche telekom oif carrier wg chair, oif vice president. A comprehensive survey akhilesh thyagaturu, anu mercian, michael p. Global service provider survey 20 indicated that 96 percent of service providers will deploy otn switching in the core, and over 90.
Recently, various optical networks have been proposed for chipscale communication on largescale manycore chips, including optical burstswitching obs. Sdn is applicable to optical network, and the optical network integrated with sdn, namely. 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. Control plane design for reliable optical networks ieee.
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. Optical transport networks typically deploy dynamic restoration mechanisms in order to automatically recover optical connections disrupted by network failures. Backbone optical networks are evolving to mesh topologies using intelligent network elements. Novel optical control plane in nextgeneration ipwdm.
New strategic initiatives advance transformation of. No distinction between if1, if2 and routerrouter mpls control plane. Softwaredefined network sdnopenflow research and development have attracted the attention of many researchers and companies. Optical networking technology underwent a major revolution in the 1990s as the old paradigm of sonetsdh systems to support circuitswitched connections. And as it turns out, service providers are increasingly focused on the need for an optical control plane. Optical virtual private networks via a sdngmpls control plane. Controller is a logical entity that models all control plane intelligence routing, traffic engineering te, and signaling protocols, path computation, etc. Elastic optical networks eon, which are able to allocate an. It is part of the theoretical framework used to understand the flow of information packets between network interfaces. Section 5 discusses a framework for ip over optical networks, mpls, the signaling protocols ldp and crldp. As a framework, this is an informational document and does not define any protocol extensions.
The portal can access those files and use them to remember the users data, such as their chosen settings screen view, interface language, etc. Original phone networks has real circuit switching. The ramifications of this technology are manifold, affecting the architecture, operation, and economics of. At its core, an intelligent optical control plane is software that controls all aspects of configuring connections between optical switches across a network.
Alarm classification prediction based on crosslayer. An optical transport network otn is an interconnection of optical switches and optical fiber links. The application of an ipbased control plane to optical networks has opened up new opportunities and challenges for network designers. Media access using media access control protocols mac protocols need to consider the network is high speed high speed network packet transmission time. 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. 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. Within the itut, the optical control plane initiative is referred to as automatic switched optical network ason 2. The data plane, the control plane and the management plane are the three basic components of a telecommunications architecture. The book includes uptotheminute coverage of mpls, switching in optical networks, ipoveroptical, qos, and optical bandwidth on demand. 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. Optical network control is the first expert guide and singlesource reference for controlling and managing optical networks. This standard defines the context, terminology, and architectural options for a gmpls control plane applied to wson networks. Osa dynamic restoration with gmpls and sdn control plane. 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.
The control plane, data plane and forwarding plane in networks. Paul goransson, chuck black, in software defined networks, 2014. 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. 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 control plane design for reliable optical networks. Release notes for cisco ncs 2000 series, release 11. Optical transport network an overview sciencedirect topics. British telecom, and major carriers throughout the united. In nonsson networks, this is not automatically managed by the control plane and the user must manage these constraints. Control plane design for reliable optical networks. A tutorial on optical networks department of computer science at.