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Journal from gdlhub / 2020-01-10 09:16:28
Oleh : Tsehay Admassu Assegie,Pramod Sekharan Nair, Telkomnika
Dibuat : 2020-01-10, dengan 1 file

Keyword : centralized SDN controller, distributed sdn controller, network security, SDN controller security, software defined network
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/issue/view/640
Sumber pengambilan dokumen : web

Software defined network is an emerging network architecture that separates the traditional

integrated control logic and data forwarding functionality into different planes, namely the control plane and

data forwarding plane. The data plane does an end-to-end data delivery. And the control plane does

the actual network traffic forwarding and routing between different network segments. In software defined

network the networking infrastructure layer is where the entire networking device, such as switches and

routers are connected with the separate controller layer with the help of standard called OpenFlow

protocol. The OpenFlow is a standard protocol that allows different vendor devices like juniper, cisco and

huawei switches to be connected to the controller. The centralization of the software defined network

(SDN) controller makes the network more flexible, manageable and dynamic, such as provisioning of

bandwidth, dynamic scale out and scale in compared to the traditional communication network, however,

the centralized SDN controller is more vulnerable to security risks such as DDOS and flow rule poisoning

attack. In this paper, we will explore the architectures, the principles of software defined network and

security risks associated with the centralized SDN controller and possible ways to mitigate these risks.

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