Programmable networks must also unify network layers so that centralized control can extend endtoend. A crosslayer sdn control plane for optical multicast. The gmpls user network interface enables ip routing overlay networks to directly tap into the optical transport control plane to more efficiently provision and protect ip services. In this paper, we build a crosslayer sdn control plane that leverages these advantages.
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. Ciena has been investing in optical control plane technology for many years now, first for sonetsdh networks and more recently as part of our otn switching solutions e. In optical networks that maintain signals in the optical domain, switching can be performed at the circuit, packet, or burst granularities. Optical circuit switching can be performed in space, waveband, wavelength, or time.
We present an sdnbased control plane for elastic optical wavelength switch in optical networks, for dynamic endtoend lightpath provisioning and maximum flexible operations. The functions of the ason control plane are automated, based on networking intelligence that include automatic discovery, routing and signaling. Now, we are beginning to see the deployment of optical control planes that sit between the management and transport planes figure 1. Figure 3 shows a topology of prototype network, which consists of 10 network nodes and 3 client nodes. Effects of outdated control information in controlplane. Control plane and data plane are not two physical planes on switchrouter. Osa optical power control in translucent flexible optical. Osa valueadded proposition of the gmpls control plane in. In the recent years, there has been much advance in the areas, ranging from the traditional generalized multiprotocol label switching gmpls to todays path computation element pcebased technology. Control principles and features for evolving meshbased optical networks and existing ring networkswith practical examples emerging, proposed, and future optical routingsignaling protocols and standards including gmpls, ason and optical uni.
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. The control plane traffic carries control traffic which is not enduser data whereas the data plane traffic is actual enduser data. Guide for authors optical switching and networking issn. Sdn for optical networks is easy to talk about, but reallife 100g and roadm transport have a lot of complexity to consider. A novel control framework is first proposed for seotn in the paper, and some protocol extensions are designed for the framework. Data and control plane solutions for an optical 5g transport. In the optical transport field, the control plane has been called different things by different standards bodies. Oxc control plane control control data optical network node ipmpls router or. In particular, this contribution focuses on adapting pnni signaling to ason requirements by highlighting essential features of pnni signaling that need to become aligned to ason. Optical science and engineering for the 21st century, national academy press, july 1998, 360 pages. Guide for authors aims and scope optical switching and networking osn is an archival journal aiming to provide complete coverage of all topics of interest to those involved in the optical and highspeed optoelectronic networking areas. Nov 22, 2016 the gmpls user network interface enables ip routing overlay networks to directly tap into the optical transport control plane to more efficiently provision and protect ip services. Optical fiber networks have high capacity can be used for providing the high bandwidth services even in wireless, infrared means high bandwidth connectivity.
Intelligent optical control planes internet networks. Openslice, is presented for spectrum sliced elastic optical path networks to prove its overall feasibility and efficiency. Ipmpls router optical node optical networks edge edge core figure 2. Pdf the ason approach to the control plane for optical networks. Thats especially true when its something like control plane, which isnt a topic that gets a lot of attention or media coverage. Optical network control is the first expert guide and singlesource reference for controlling and managing optical networks. Optical control plane how is optical control plane abbreviated. Distributed optical control plane for dynamic lightpath. Detailed architecture and specific modules including underlying wavelength switch, sdn controller and applications are developed and evaluated to show its overall.
Optical virtual private networks via a sdngmpls control plane. Signaling for controlling optical networks is the topic of this paper. Functions in the control plane can protect connections from channel, fibre or node faults. 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. The existing link management, signaling, and routing protocols are also presented in an overview of the gmpls framework. Architecture and specification of data communication network.
Implementing pnni signaling in the optical control plane. A survey on transition from gmpls control plane for. A network control plane architecture for ondemand co. Softwaredefined network sdnopenflow research and development have attracted the attention of many researchers and companies. In fact, the verizon announcement spurred more than one person to ask us, what exactly is an optical control plane. Jul 24, 2003 optical network control is the first expert guide and singlesource reference for controlling and managing optical networks. It is part of the theoretical framework used to understand the flow of information packets between network interfaces. The control plane performs the call control and connection control functions. Idealist control plane architecture for multidomain flexigrid optical networks ramon casellas, raul munoz. The management plane performs management functions for the fig. Enabling ipoptical control plane integration with gmpls uni.
A single controller can manage one or more transport nodes. Our control plane implementation is portable to a real datacenter. Feb 20, 2017 network virtualization allows multiple networks to be deployed over the same infrastructure, and has been successfully applied to several networking technologies e. References to the control plane are often included in diagrams to give a visual. Optical wdm networks, biswanath mukherjee, springer.
May 14, 2012 thats especially true when its something like control plane, which isnt a topic that gets a lot of attention or media coverage. There is no single command that you can use to distinguish between the two. In fact, were on our 7 th generation of our oneconnect optical control plane. Sdngmpls for optical networks how to leverage existing gmpls control plane for sdn. Plane for ip over wdm architecture and the current protocols that are used in control plane in optical networks as well as delves the research into a new novel unified control plane for ip over wdm architecture networks. An overview of optical control plane and novel unified. Software defined networking sdn is an emerging network architecture where network control is decoupled from forwarding and is directly programmable. Dec 12, 20 rfc 6163 framework for gmpls and path computation element pce control of wavelength switched optical networks wsons.
Also, the optical control plane must be able to operate across network boundaries, both at the edge interface to the customers equipment and at administrative domain. Automatically switched optical network ason, optical networks, control plane introduction optical backbone networks, based on sdhsonet. Foisel, tsystems deutsche telekom oif carrier wg chair, oif vice president. Optical networks introduction, cicek cavdar evaluation and class material. It is emphasized that pnni is appropriate for supporting ason. Ieee 2018 photonics in switching and computing conference. Books on wavelength division multiplexing wdm and optical. More recently, stimulated by the rise of new control plane suites for optical networks e.
Controller is a logical entity that models all control plane intelligence routing, traffic engineering te, and signaling protocols, path computation, etc. Network virtualization allows multiple networks to be deployed over the same infrastructure, and has been successfully applied to several. We recognize movaz as a leader in the use of gmpls to provide a standardsbased optical control plane and we look forward to expanding our collaboration to include leveraging embedded gmpls for the management of next generation optical networks. 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. Rfc 6163 framework for gmpls and path computation element pce control of wavelength switched optical networks wsons. Efforts to standardize such a distributed common control plane have reached various stages in several bodies such as the ietf, itu and oif.
Design of sdnbased multilayer control plane for elastic. A lightpath is a series of optical wdm channels that are interconnected. In 9 a probabilistic model to derive an upper bound on the probability that ted inaccuracies occur is presented. Mar 25, 2014 controller is a logical entity that models all control plane intelligence routing, traffic engineering te, and signaling protocols, path computation, etc. We quantify the valueadded proposition of the generalized multiprotocol label switching gmpls distributed control plane vis a vis the centralized network management cnm plane. Control plane design and performance analysis for optical. When combined with an intelligent control plane technology like. In order for such a network to operate efficiently, it is essential that it employ a control plane that is capable of managing both legacy framed traffic and new traffic types. In the ietf, the optical control plane is referred to as generalized multiprotocol label switching, or gmpls 1. These are two logicalconceptual separations for better functionality. Any networking product deployed for powering up network broadly does two typical things. Sdn is essentially moving from distributed configuration to controlling the network from a logically centralized high level program i. The university of cyprus is organizing psc 2018 in limassol, cyprus on september 19 21. Control and management play a key role in enabling optical networks to efficiently and smoothly carry user data.
Optical fibers contd data communication in an optical network use an optical carrier signal at some wavelength in the bandof 1450 to 1650 nm. Course material and all information to be found at the course web site. The management plane is another vital component but also widely excepted as user to hardware interaction. 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. Control principles and features for evolving meshbased optical networks and existing ring networkswith practical examples emerging, proposed, and future optical routingsignaling protocols and standards including gmpls, ason and optical uni optical network control planes. What is control plane and data plane in networking.
To date, however, there have been only a few deployed networks in which control plane integration of ip rout ers and optical transport systems has been implemented using dwdm and roadms. A comprehensive survey akhilesh thyagaturu, anu mercian, michael p. Specific areas of interest include, but are not limited to. This standard defines the context, terminology, and architectural options for a gmpls control plane applied to wson networks. Drivers for automatically switched optical networks are briefly presented. Idealist control plane architecture for multidomain flexi. Modern optical network control plane introduction control plane architecture and functional model control plane aspects in ip networks control of mpls networks generalized mpls gmpls control of atm networks. Sep 27, 2012 the control plane, data plane and forwarding plane in networks. At data plane, the elastic optical network eon concept 1215 has emerged as a novel optical network architecture able to respond to the increased need of elasticity in allocating optical network resources.
Optical switching and networking considers highquality, original, and unpublished contributions addressing all aspects of optical and optoelectronic networks. Barry, optical society of america, optical networks and their applications, optical society of america, december 1998. In order to study gmpls control plane for provisioning the optical lsp and providing protection and restoration among the nodes in the core networks, a prototype network has been developed. Optical networks control and management springerlink. As a framework, this is an informational document and does not define any protocol extensions. Jun 16, 2014 sdn for optical networks is easy to talk about, but reallife 100g and roadm transport have a lot of complexity to consider. The data plane is simply an abstraction used to describe the actual flow of data packets using paths determined by the control plane. Onereasonisthetypicalorga nizational division of ip and optical operations. Photonics in switching and computing addresses all aspects of optical interconnected network architectures, optical sub systems, optical components and devices, and network management and control plane for telecom, datacom and hpc networks. The control plane is that part of a network which carries information necessary to establish and control the network. And the reality is that service providers have separate, manual service provisioning systems in their ip and optical layers.
The control plane moves some of the network intelligence down to the nes. Within the itut, the optical control plane initiative is referred to as automatic switched optical network ason 2. An overview on application of machine learning techniques. The control plane, data plane and forwarding plane in networks. Our main objective is not to propose new protocols or algorithms, but rather to provide guidance to network operators on how to maximize the benefits of deploying a gmpls control plane.
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