Analysis of Openflow-Hybrid Mode Network Architecture
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Date
2018-06-03
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Addis Ababa University
Abstract
Lack of flexibility and scalability on traditional networks require more studies and
researches in the area and this leads to the introduction of Software Defined Networking
(SDN). The main objective of Software Defined Networking is to separate the control plane
from the data plane and introduce the concept of Programmable Network. OpenFlow is a
protocol used in Software Defined Networking architecture as a communication channel
between the data plane and the control plane. Different applications can easily be integrated
with the control plane in order to avoid vendor specificity issues with greater speed and
greater scalability in terms of routing and forwarding. Completely shifting from traditional
networks to this new architecture may not be an easy task and it is not also the target of
Software Defined Networking, instead it encourages to shift step by step. The OpenFlow
specification introduces two forms of implementations: pure and hybrid OpenFlow
implementations. The hybrid implementation supports both traditional packets forwarding
as well as OpenFlow network architecture.
In this work, we present a performance analysis of the hybrid OpenFlow architecture in
terms of throughput, end-to-end delay, and scalability on Local Area Network (LAN) side
by side with the pure OpenFlow implementation. The aim is to explore how OpenFlow
hybrid network can be implemented on the simulation environment and to see what
enhancements it can bring to the OpenFlow network.
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Keywords
Software Defined Networking, Openflow, Hybrid Implementation, Hp Van Sdn Controller, Open Virtual Switch