Version 1
: Received: 27 May 2024 / Approved: 6 June 2024 / Online: 7 June 2024 (04:49:27 CEST)
How to cite:
Hettiarachchi, E. D. S. I.; Sarkar, N. I.; Gutierrez, J. The Impact of Southbound Expansion on Clustered OpenFlow Software Defined Network Controller Synchronisation. Preprints2024, 2024060413. https://doi.org/10.20944/preprints202406.0413.v1
Hettiarachchi, E. D. S. I.; Sarkar, N. I.; Gutierrez, J. The Impact of Southbound Expansion on Clustered OpenFlow Software Defined Network Controller Synchronisation. Preprints 2024, 2024060413. https://doi.org/10.20944/preprints202406.0413.v1
Hettiarachchi, E. D. S. I.; Sarkar, N. I.; Gutierrez, J. The Impact of Southbound Expansion on Clustered OpenFlow Software Defined Network Controller Synchronisation. Preprints2024, 2024060413. https://doi.org/10.20944/preprints202406.0413.v1
APA Style
Hettiarachchi, E. D. S. I., Sarkar, N. I., & Gutierrez, J. (2024). The Impact of Southbound Expansion on Clustered OpenFlow Software Defined Network Controller Synchronisation. Preprints. https://doi.org/10.20944/preprints202406.0413.v1
Chicago/Turabian Style
Hettiarachchi, E. D. S. I., Nurul I. Sarkar and Jairo Gutierrez. 2024 "The Impact of Southbound Expansion on Clustered OpenFlow Software Defined Network Controller Synchronisation" Preprints. https://doi.org/10.20944/preprints202406.0413.v1
Abstract
The clustering methods of Software Defined Networking (SDN) gained popularity due to their ability to offer improved scalability, consistency, dependability, and load balancing within overlay networks and SDN partitions. This paper delved into the effects of increasing the number of OpenFlow-enabled southbound devices on the establishment and coordination of SDN-Controller clusters. Specifically, we examined the volume of east-west cluster packet communication concerning the number of southbound devices within the topology. Many research studies focused on bandwidth and the number of bytes in East-West communication. While bandwidth referred to the maximum rate at which data could be transferred, and the number of bytes reflected the volume of data being transmitted, the number of packet communications directly influenced the efficiency and responsiveness of network operations. Our investigation encompassed the impact of SDN controllerto- controller communication within the cluster concerning the rising number of OpenFlow switches connected to various topologies, including tree (star-bus network), linear, and torus configurations. This study presented data on communication patterns within Open Network Operating Systems (ONOS) and OpenDaylight (ODL) clusters, revealing differing levels of controller communication with southbound network expansions. We evaluated the scalability of ODL and ONOS controllers by scrutinising the effect of increasing the number of southbound devices on control communication volume. Our analysis revealed varied communication patterns within ONOS and ODL clusters, resulting in different volumes of control communication with southbound expansions. The findings indicated that in small to medium-sized SDNs, ODL outperformed ONOS, notably with faster cluster discovery. Conversely, ONOS demonstrated greater efficiency in larger networks owing to its centralised communication architecture. Finally, we provided recommendations for selecting the most suitable controllers based on the size of southbound networks, aiming to provide practical guidelines for optimal network performance.
Computer Science and Mathematics, Computer Networks and Communications
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
