Sdn is meant to address the fact that the static architecture of traditional networks is decentralized and complex. Key components of the sdlan solution are pictured, lefttoright the softwaredefined data plane, composite cabling, and softwaredefined access node. Corning introduces softwaredefined lan infrastructure. Optical network security is attracting increasing research interest.
A comprehensive approach, second edition provides indepth coverage of the technologies collectively known as software defined networking sdn. Remember, extending sdn to the transport layer can more than double your network utilization. Pdf software defined networking for optical networks. This is an introductory course to software defined networking sdn as a control plane cp technology for optical networks. Applications interact with controllers to implement network services, such as network transport with quality of. On the other hand, optical networks must become more programmable and softwaredefined. It separates the control plane from the data plane and turns the control manner into a centralized and flexible one. We mainly organize the sdon studies into studies focused on the infrastructure layer, the control layer, and the application layer. Software defined networking sdn in optical networks. In this article, we comprehensively survey studies that examine the concepts of sdn and network virtualization in optical access networks. Softwaredefined networking sdn is designed to make a network flexible and agile. Published 1 may 2019 published under licence by iop publishing ltd. The optical network integrated with sdn, namely software. Softwaredefined optics the hyperscale era with the proliferation of evermore sophisticated applications and the fierce growth in mobility, communication, cloud and content service providers require highspeed optical solutions in their networks and the flexibility to use them to the full.
Here, it promises a simplification and unification of network management for optical networks allowing automation of operational tasks despite the highly diverse and vendorspecific commercial systems and the complexity and analog nature of optical transmission. Softwaredefined networking sdn enables programmable sdn control and management functions at a number of layers, allowing applications to control. Current cloudbased services are pushing networks to new boundaries by deploying cutting edge optical technologies to provide scalable and. Softwaredefined optical networks, the impact of photonic integration on optical networks, ipoptical convergence, the best movie ever made these are. Principles and applications find, read and cite all the.
Interface sdn network with optical network to enhance the capability of current optical network capability to achieve high data rate support to fulfilled 5g and internet of things iot backbone capacity requirement. By investing in tellabs optical lan today, you are gaining the best lan operational efficiencies, reliability and security, and you are laying the foundation for true software defined local area network lan in the future. Softwaredefined optical networking we call it liquid spectrum liquid spectrum simplicity advanced software applications that abstract complexity choice with open and disaggregated software agility and scale with programmable hardware monitoring. In this article, we comprehensively survey studies that examine the sdn paradigm in optical networks. From physical layer security over to secure softwaredefined optical network systems optical networks with their capability to carry tbs of data, and a myriad of services, have become the horse power of all the internet, data center and cloud computing systems. However, a variety of new threats are emerging in sdons. The topology is defined as a set of network resources whichconsistsofnodesandlinks,includingextendedlogical tpsfromthecoremodelseefigure1. Softwaredefined optical networks technology and infrastructure. Optical network abstraction enables simple integration into sdnbased environments and multilayer coordination. Softwaredefined networking sdn is a newly emerging computer networking architecture.
Enabling softwaredefined optical network operations invited mayur channegowda, reza nejabati, and dimitra simeonidou abstractsoftwaredefined networking sdn enables programmable sdn control and management functions at a number of layers, allowing applications to control net. A glimpse into softwaredefined optical networks of the future. In the field of software defined optical networking sdon, a testbed has been simulated in optisystem along with matlab cosimulation with. The emerging software defined networking sdn paradigm separates the data plane from the control plane and centralizes network control in an sdn controller. The link between softwaredefined networking and passive. It then explains the benefits and challenges of extending sdns to multilayer optical networks, including flexible grid and elastic. Tellabs optical lan always has been, and continues to be, the first best choice in support of the software defined networking evolution. Enabling softwaredefined optical network operations. A comprehensive survey akhilesh thyagaturu, anu mercian, michael p.
Softwaredefined optical network sdon, new generation networks. As both architecture and service heterogeneity continues to increase in optical networks, softwaredefined optics i. They are based on optical technologies and components, and are used to route, groom, and restore wavelength levels and wavelengthbased services. Softwaredefined optical transport network is the direction of the development of next generation optical transport networks, its design ideas from computing softwaredefined network sdn. Its main distinguishing factor is the separation of the data plane from the control plane in routers and switches. Sdons seek to leverage the flexibility of sdn control for supporting networking. Softwaredefined networking sdn enables programmable sdn control and management functions at a number of layers, allowing applications to control network resources or information across different technology domains, e.
Pdf on jun 21, 2017, yongli zhao and others published software. This paper gives an overview of softwaredefined optical networks sdons. In this paper, we introduce the unified sdn as a common control solution for endtoend ocsops networks, with the introduction of an additional network element, namely the openflow agent. Softwaredefined networking is finding its way into optical networks. The book shows how to explain to business decisionmakers the benefits and risks in shifting parts of a network to the sdn model, when to integrate sdn technologies in a. Software defined optical networks technology and infrastructure. The combination of software defined networking sdn and optics, i. As optical circuits tdm, wdm can readily be defined as flows, a commonflow abstraction fits well with both packet and circuit switches, provides a common paradigm for control using a commonmap abstraction, and makes it easy to control, jointly optimize, and insert new functionality into the network. Softwaredefined networking sdn is a network architecture approach that enables the network to be intelligently and centrally controlled, or programmed, using software applications. Published 1 may 2019 published under licence by iop publishing ltd iop conference series. Current cloudbased services are pushing networks to new boundaries by deploying cutting edge optical technologies to provide. Optical network models and their application to softwaredefined network management. Deployment, operation, provisioning and configuration are abstracted from hardware.
Channegowda, software defined optical networks technology and infrastructure. Centralized orchestration of all resources to optimize endtoend, multilayer data flows something only possible with transport sdn. Optical network models and their application to software. An sddc softwaredefined data center is a data storage facility in which all infrastructure elements networking, storage, cpu and security are virtualized and delivered as a service. Software defined networking sdn is defined as a control framework that supports the programmability of network functions by decoupling. The course will cover the main drivers, uses, key benefits, current trends and underlying technologies around the concept of an sdn control plane focusing, notably, on transport networks and covering mainly the. Software defined networking sdn technology is an approach to network management that enables dynamic, programmatically efficient network configuration in order to improve network performance and monitoring making it more like cloud computing than traditional network management. Under this architecture, the implementation of the control. Data encryption is an effective way to secure communications in sdons. Sdk software development kits sdn software defined networking sgilan serving gateway interface local access network sip session initiation protocol slu sub loop unbundling sme small, medium enterprises sonet synchronous optical network technology sriov single rootio virtualisation ssbg signalling session border gateway.
Index termscontrol layer, infrastructure layer, optical net work, orchestration, software defined networking sdn, virtual network. Virtualization is the core concept behind softwaredefined networking sdn and network functions virtualization nfv, both of which are massively impactful. Sdn lets you design, build, and manage networks, separating the control and forwarding planes. Sdn is a new network architecture, network control plane and data forwarding plane will be separated, and programmable control. The emerging software defined networking sdn paradigm separates the data plane from the control plane and centralizes network. Softwaredefined networking telecom channel telamon.
The combination of softwaredefined networking sdn and optics, i. Sdn refers to the optical network, and the optical network, when combined with sdn, creates a softwaredefined optical network sdon, a potential transport solution. Softwaredefined optical transport network make the. Here, it promises a simplification and unification of. Technical report carrier software defined networking sdn. This helps operators manage the entire network consistently and holistically, regardless of the underlying network technology. Softwaredefined optical network sdon, new generation. It explains the general concepts on softwaredefined networks sdns, their relationship with network function virtualization, and also about openflow, which is a pioneer protocol for sdns. We aim to have 75 percent of our traffic on our softwaredefined network by 2020, and were pushing hard to beat that. Software defined networking is finding its way into optical networks.
We use the proposed sdon design architecture based on software defined networking and do the. The platform is technologyneutral, the company added, supporting active ethernet deep into the network and passive optical lan over a softwaredefined network architecture. A variety of optical network models, covering various. In other words, the control is decoupled from hardware and implemented in software. The topology is defined as a set of network resources whichconsistsofnodesandlinks,includingextendedlogical. Even though we are unveiling liquid spectrum today, this concept of a programmable and softwaredefined optical network is one weve been building towards for several years. Software defined networking sdn is a newly emerging computer networking architecture. Radisys expands access portfolio with onfbased software. Control plane robustness in softwaredefined optical. As a result, the control plane is directly programmable, and it abstracts the underlying infrastructure for. These challenges include, but are not limited to, softwaredefined optical network architectures and associated protocols, the intelligent endtoend provisioning and reconfiguration of resources to support dynamic and heterogeneous applications, the solutions for supporting multilayer and multidomain softwaredefined optical networks, and. Softwaredefined networking and openflow sciencedirect. Common abstractions and interfaces are a fundamental component.