Performance Analysis of Congestion Control Mechanism in Software Defined Network (SDN)

M Z A Rahman,A Amir,S.K Yoon,A.H Abd Halim,N Yaakob,Rb Ahmad,P.J Soh,T Sabapathy,Z.I Abdul Khalib,M Jusoh

doi:10.1051/matecconf/201714001033

Abstract

In the near future, the traditional networks architecture will be difficult to be managed. Hence, Software Defined Network (SDN) will be an alternative in the future of programmable networks to replace the conventional network architecture. The main idea of SDN architecture is to separate the forwarding plane and control plane of network system, where network operators can program packet forwarding behaviour to improve the network performance. Congestion control is important mechanism for network traffic to improve network capability and achieve high end Quality of Service (QoS). In this paper, extensive simulation is conducted to analyse the performance of SDN by implementing Link Layer Discovery Protocol (LLDP) under congested network. The simulation was conducted on Mininet by creating four different fanout and the result was analysed based on differences of matrix performance. As a result, the packet loss and throughput reduction were observed when number of fanout in the topology was increased. By using LLDP protocol, huge reduction in packet loss rate has been achieved while maximizing percentage packet delivery ratio.

Highlights

The dramatic increased of Internet capacity network traffic due to the increment used of mobile devices, Internet protocol television (IPTV), server virtualization and cloud services are becoming more complicated for a traditional architecture network to handle high traffic
Software Defined Network (SDN) is a promising approach to computer networking that separates data plane and control plane combined with centralized controller to allow network operator to program the packet forwarding
Since we are using Mininet emulator, the topology is already created for basic concept of SDN which consist of controller, switches and many hosts

Summary

Introduction

The dramatic increased of Internet capacity network traffic due to the increment used of mobile devices, Internet protocol television (IPTV), server virtualization and cloud services are becoming more complicated for a traditional architecture network to handle high traffic. Device such as router, switch and firewall has their own control plane and data plane. The network cannot handle higher user capacity because the forward plane and control plane are in the same device [1]. The communication networks are growing rapidly and becoming more complex to be managed and handled. This is especially true with traditional network architecture, network systems and protocol stack which is difficult to provide adequate solutions to the contemporary networking demands. Software Defined Network (SDN) is a promising approach to computer networking that separates data plane and control plane combined with centralized controller to allow network operator to program the packet forwarding.

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