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Other Titles: Дослідження можливостей впровадження алгоритмів маршрутизації у програмно-конфігурованих мережах (SDN).
Introduction of New Routing Algorithms in Software Defined Networks (SDN).
Authors: М.Б. Лурджан, M.B. Lourdjane
А.А. Воропаева, A.A. Voropaeva
Г.В. Ступак, G.V. Stupak
Keywords: протокол
программно-конфигурируемые сети
Issue Date: May-2015
Publisher: Донецький національний технічний університет
Citation: Наукові праці Донецького національного технічного університету. Серія: Обчислювальна техніка та автоматизація. Випуск 1 (28). - Красноармійськ, ДонНТУ, 2015.
Series/Report no.: Наукові праці Донецького національного технічного університету. Серія: Обчислювальна техніка та автоматизація. Випуск 1 (28). - Красноармійськ, ДонНТУ, 2015. - C. 81-88.;
Abstract: Рассмотрены возможности и механизмы тестирования и отладки, а также внедрения новых алгоритмов маршрутизации в сети, построенные согласно концепции Software Defined Networking. Разработан и внедрен новый алгоритм маршрутизации, который позволяет выбирать маршруты в зависимости от нескольких параметров и реализует свою метрику, основываясь на функциях полезности. Проведено экспериментальное сравнение нового протокола с одним из наиболее распространенных протоколов – OSPF. Получены результаты, показывающие превосходство нового протокола по ряду ключевых параметров. Модель SDN сети показала возможности эффективного управления инфраструктурой, открываемые данной концепцией.
Description: Software defined networking concept is already changing the idea and has a significant impact on the process of building and managing networks. The efficiency of usage of network resources and their price are getting more and more important which makes those issues one of the largest challenges, when design and modernization takes place. There is a large amount of protocols that are being currently used across the infrastructure and that have some difference in their routing algorithm, type, complexity, etc. But something always remained the same – they collect the information about topology and separately take routing decisions. SDN take approach to distinguish two in fact very different planes – data plane and control plane, making the network more programmable and easy to use, reducing by the way the cost of network equipment. The software controller would run applications, that should have some kind of user friendly interface, giving the engineers abilities of policy and rules implementation. Using the OpenFlow (or any other SDN-based protocol) interface, this controller connects to network devices, creates virtual topology and, based on policies, gives those devices the exact match for routing tables forwarding actions. Introducing and managing a new routing protocol becomes really fast and efficient with SDN. In this article we want to present the results of our work: there has been developed and implemented a NEW routing algorithm, that allows choosing the best route based on the utility functions and that has a complex multyparameters metrics. It gives the provider a way to take approach to QoS based routing, keeping in mind that each type of traffic(in this particular case – WEB, Video and VoIP) has its own bandwith, delay and jitter and loss requirments. The model of SDN network has been configured using Mininet running on Linux core, OpenDaylight controller, D-ITG traffic generator and our developed application, that implemented the routing rules using our algorithm. Based on this model and chosen topology, we have made comparison between QoS parameters of our protocol and well known OSPF. Furthermore, our model exactly matches the real network requirements, meaning that all algorithms, developed applications and controller configurations could be used in the real networks without making any change. Shown results prove efficiency of our protocol, as well as ability to fast implementation of new features in SDN networks.
ISSN: 2075-4272
Appears in Collections:Випуск 1(28)

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