Towards adaptive state consistency in distributed SDN control plane

Sakic E, Sardis F, Guck JW, Kellerer W (2017)

Publication Type: Conference contribution

Publication year: 2017

Journal

2012 IEEE International Conference on Communications (ICC) Institute of Electrical and Electronics Engineers (IEEE)

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: IEEE International Conference on Communications

Event location: Paris, FRA

ISBN: 9781467389990

DOI: 10.1109/ICC.2017.7997164

Abstract

State synchronisation in clustered Software Defined Networking controller deployments ensures that all instances of the controller have the same state information in order to provide redundancy. Current implementations of controllers use a strong consistency model, where configuration changes must be synchronised across a number of instances before they are applied on the network infrastructure. For large deployments, this blocking process increases the delay of state synchronisation across cluster members and consequently has a detrimental effect on network operations that require rapid response, such as fast failover and Quality of Service applications. In this paper, we introduce an adaptive consistency model for SDN Controllers that employs concepts of eventual consistency models along with a novel 'cost-based' approach where strict synchronisation is employed for critical operations that affect a large portion of the network resources while less critical changes are periodically propagated across cluster nodes. We use simulation to evaluate our model and demonstrate the potential gains in performance.

Authors with CRIS profile

Jochen Guck

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) King’s College London GB United Kingdom (GB)

How to cite

APA:

Sakic, E., Sardis, F., Guck, J.W., & Kellerer, W. (2017). Towards adaptive state consistency in distributed SDN control plane. In Merouane Debbah, David Gesbert, Abdelhamid Mellouk (Eds.), IEEE International Conference on Communications. Paris, FRA: Institute of Electrical and Electronics Engineers Inc..

MLA:

Sakic, Ermin, et al. "Towards adaptive state consistency in distributed SDN control plane." Proceedings of the 2017 IEEE International Conference on Communications, ICC 2017, Paris, FRA Ed. Merouane Debbah, David Gesbert, Abdelhamid Mellouk, Institute of Electrical and Electronics Engineers Inc., 2017.

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