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Browsing by Author "Yahya, Mohammed Amer Yahya"

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    Master Thesis
    SDN improvements and solutions for traditional networks
    (Çankaya Üniversitesi, 2017) Yahya, Mohammed Amer Yahya; 01. Çankaya Üniversitesi
    The new trend of the internet has led to building a digital world, where everything is connected and from any place can be accessible. Nevertheless, the management of conventional networks is complicated and difficult. Because of its static characteristics, it is hard to configure and the reconfiguration causes errors, unwanted changes, and extra load. Another reason which makes the matters harder is that the traditional networks are also perpendicularly integrated which means the control and the data planes are embedded in the same device. Software defined networking (SDN) is a new trend of networking which guarantees to alter the behavior of the current network through decoupling the control plane from the data plane and gives the networks centralized management, and offers the capability to program the network. SDN makes it simpler to produce and present new concepts in networking, simplifies network control, and facilitates network development. In this thesis, we introduce the SDN improvements and solutions for traditional networks, and explain the current networks technologies and their features. Subsequently, we present the limitations of the current networks in managements, routing, devices dependency, capital and operational cost, and rigidness and complexity. We also give the proposed solutions from SDN to these limitations, cloud computing, and heterogeneous networks. We also look at SDN applications in network routing, security and access control, Internet research, mobile device offloading, and wireless virtual machines. In addition, we introduce one of the newest trends of SDN regarding traffic engineering which is Intent-based networking. Finally, we demonstrate through simulations the benefits which are provided by SDN to traditional networks. We select a single IP layer and a multilayer optical network (MPLS over DWDM) to demonstrate the advantages of SDN managements. We deployed an SDN controller that can illustrate how the test environment configuration is carried out and how beneficial it can be. The SDN controller used was the ONOS controller.