Survey on network virtualization using openflow: Taxonomy, opportunities, and open issues
Document Type
Article
Publication Date
1-1-2016
Abstract
The popularity of network virtualization has recently regained considerable momentum because of the emergence of OpenFlow technology. It is essentially decouples a data plane from a control plane and promotes hardware programmability. Subsequently, OpenFlow facilitates the implementation of network virtualization. This study aims to provide an overview of different approaches to create a virtual network using OpenFlow technology. The paper also presents the OpenFlow components to compare conventional network architecture with OpenFlow network architecture, particularly in terms of the virtualization. A thematic OpenFlow network virtualization taxonomy is devised to categorize network virtualization approaches. Several testbeds that support OpenFlow network virtualization are discussed with case studies to show the capabilities of OpenFlow virtualization. Moreover, the advantages of popular OpenFlow controllers that are designed to enhance network virtualization is compared and analyzed. Finally, we present key research challenges that mainly focus on security, scalability, reliability, isolation, and monitoring in the OpenFlow virtual environment. Numerous potential directions to tackle the problems related to OpenFlow network virtualization are likewise discussed.
Keywords
Software Defined Networks, OpenFlow, Network Virtualization, Testbeds
Divisions
fsktm
Funders
This work is fully funded by Bright Spark Unit, University of Malaya, Malaysia and partially funded by Malaysian Ministry of Higher Education under the University of Malaya High Impact Research Grant UM.C/625/1/HIR/MOE/FCSIT/03
Publication Title
KSII Transactions on Internet and Information Systems
Volume
10
Issue
10
Publisher
Korean Society for Internet Information