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Control under Intermittent Network Partitions
KTH, School of Electrical Engineering and Computer Science (EECS), Communication Systems, CoS, Network Systems Laboratory (NS Lab).ORCID iD: 0000-0002-1256-1070
2018 (English)In: 2018 IEEE International Conference on Communications (ICC), Institute of Electrical and Electronics Engineers (IEEE), 2018, article id 8422615Conference paper, Published paper (Refereed)
Abstract [en]

We propose a novel distributed leader election algorithm to deal with the controller and control service availability issues in programmable networks, such as Software Defined Networks (SDN) or programmable Radio Access Network (RAN). Our approach can deal with a wide range of network failures, especially intermittent network partitions, where splitting and merging of a network repeatedly occur. In contrast to traditional leader election algorithms that mainly focus on the (eventual) consensus on one leader, the proposed algorithm aims at optimizing control service availability, stability and reducing the controller state synchronization effort during intermittent network partitioning situations. To this end, we design a new framework that enables dynamic leader election based on real-time estimates acquired from statistical monitoring. With this framework, the proposed leader election algorithm has the capability of being flexibly configured to achieve different optimization objectives, while adapting to various failure patterns. Compared with two existing algorithms, our approach can significantly reduce the synchronization overhead (up to 12x) due to controller state updates, and maintain up to twice more nodes under a controller.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018. article id 8422615
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-234101DOI: 10.1109/ICC.2018.8422615Scopus ID: 2-s2.0-85051430600ISBN: 9781538631805 (print)OAI: oai:DiVA.org:kth-234101DiVA, id: diva2:1245419
Conference
2018 IEEE International Conference on Communications, ICC 2018, Kansas City, United States, 20 May 2018 through 24 May 2018
Note

QC 20180905

Available from: 2018-09-05 Created: 2018-09-05 Last updated: 2018-09-05Bibliographically approved

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