A Practical Byzantine-Based Approach for Faulty Switch Tolerance in Software-Defined Networks

Yuan, B; Jin, H; Zou, D; Yang, LT; Yu, S

A Practical Byzantine-Based Approach for Faulty Switch Tolerance in Software-Defined Networks

Yuan, B Jin, H Zou, D Yang, LT Yu, S

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Network and Service Management, 2018, 15 (2), pp. 825 - 839
Issue Date:: 2018-06-01

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Field	Value	Language
dc.contributor.author	Yuan, B	en_US
dc.contributor.author	Jin, H	en_US
dc.contributor.author	Zou, D	en_US
dc.contributor.author	Yang, LT	en_US
dc.contributor.author	Yu, S https://orcid.org/0000-0003-4485-6743	en_US
dc.date.issued	2018-06-01	en_US
dc.identifier.citation	IEEE Transactions on Network and Service Management, 2018, 15 (2), pp. 825 - 839	en_US
dc.identifier.issn	1932-4537	en_US
dc.identifier.uri	http://hdl.handle.net/10453/130118
dc.description.abstract	© 2004-2012 IEEE. Over the past few years, software-defined networking (SDN) has stimulated worldwide interests in both academia and industry for its proven benefits. However, the reliability of SDN has become a significant barrier in adopting it. Many efforts have been made to enhance the reliability of SDNs. However, the research all assume a benign data plane, and overlook the fundamental question: what if the switches provide tainted network state information (controller's inputs) to the controller? To obtain a global view and produce networking decisions, SDN controllers must collect detailed and up-to-date network state information from the switches. Therefore, tainted inputs can easily disrupt the correctness of controller and reduce the reliability of SDN. In this paper, we argue that faulty switches can easily taint the controller's inputs in SDN, which would further mislead the controller. We investigate possible consequences of the existence of faulty switches with thorough analyses and practical examples. Aiming at enhancing the reliability of SDNs, we design and implement a prototype system that leverages Byzantine model to automatically tolerate faulty switches. Extensive experiments show that the proposed system can guarantee the correctness of the controller's inputs (specifically, flow statistics information) even when faulty switches exist with trivial overheads.	en_US
dc.relation.ispartof	IEEE Transactions on Network and Service Management	en_US
dc.relation.isbasedon	10.1109/TNSM.2018.2822668	en_US
dc.subject.classification	Networking & Telecommunications	en_US
dc.title	A Practical Byzantine-Based Approach for Faulty Switch Tolerance in Software-Defined Networks	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	15	en_US
utslib.for	1005 Communications Technologies	en_US
utslib.for	0805 Distributed Computing	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	closed_access
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	15	en_US

Abstract:

© 2004-2012 IEEE. Over the past few years, software-defined networking (SDN) has stimulated worldwide interests in both academia and industry for its proven benefits. However, the reliability of SDN has become a significant barrier in adopting it. Many efforts have been made to enhance the reliability of SDNs. However, the research all assume a benign data plane, and overlook the fundamental question: what if the switches provide tainted network state information (controller's inputs) to the controller? To obtain a global view and produce networking decisions, SDN controllers must collect detailed and up-to-date network state information from the switches. Therefore, tainted inputs can easily disrupt the correctness of controller and reduce the reliability of SDN. In this paper, we argue that faulty switches can easily taint the controller's inputs in SDN, which would further mislead the controller. We investigate possible consequences of the existence of faulty switches with thorough analyses and practical examples. Aiming at enhancing the reliability of SDNs, we design and implement a prototype system that leverages Byzantine model to automatically tolerate faulty switches. Extensive experiments show that the proposed system can guarantee the correctness of the controller's inputs (specifically, flow statistics information) even when faulty switches exist with trivial overheads.

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http://hdl.handle.net/10453/130118