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Interconnected Multiple Software-Defined Network Domains with Loop Topology

Authors:
Jen-Wei Hu
Chu-Sing Yang
Te-Lung Liu

Keywords: Software-defined networking; OpenFlow; multiple domains; loop topology

Abstract:
With the trends of software-defined networking (SDN) deployment, all network devices rely on a single controller will create a scalability issue. There are several novel approaches proposed in control plane to achieve scalability by dividing the whole networks into multiple SDN domains. However, in order to prevent broadcast storm, it is important to avoid loops in connections with OpenFlow devices or traditional equipments. Therefore, one SDN domain can only have exactly one connection to any other domains, which will cause limitation when deploying SDN networks. Motivated by this problem, we propose a mechanism which is able to work properly even the loops occurred between any two controller domains. Furthermore, this mechanism can also manage link resources more efficiently to improve the transfer performance. Our evaluation shows that the transmissions between hosts from different areas are guaranteed even if the network topology contains loops among multiple SDN domains. Moreover, the proposed mechanism outperforms current method in transferring bandwidth.

Pages: 8 to 13

Copyright: Copyright (c) IARIA, 2014

Publication date: November 16, 2014

Published in: conference

ISSN: 2308-4340

ISBN: 978-1-61208-377-3

Location: Lisbon, Portugal

Dates: from November 16, 2014 to November 20, 2014