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The controller placement problem

Heller, Brandon, Sherwood, Rob, McKeown, Nick·2012·Proceedings of the first workshop on Hot topics in software defined networks

Abstract

Network architectures such as Software-Defined Networks (SDNs) move the control logic off packet processing devices and onto external controllers. These network architectures with decoupled control planes open many unanswered questions regarding reliability, scalability, and performance when compared to more traditional purely distributed systems. This paper opens the investigation by focusing on two specific questions: given a topology, how many controllers are needed, and where should they go? To answer these questions, we examine fundamental limits to control plane propagation latency on an upcoming Internet2 production deployment, then expand our scope to over 100 publicly available WAN topologies. As expected, the answers depend on the topology. More surprisingly, one controller location is often sufficient to meet existing reaction-time requirements (though certainly not fault tolerance requirements).

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Metadata

Authors
Heller, B., Sherwood, R., & McKeown, N.
Venue
Proceedings of the first workshop on Hot topics in software defined networks
Publisher
ACM
Published
2012-08-13
Pages
7-12
OpenAlex
W2136835942
Cited by
869
References
0
FWCI
45.25
Type
conference paper
Language
en
Open access
closed

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CoChat. (2026). Citation check: The controller placement problem. https://app.cochat.ai/papers/10.1145/2342441.2342444
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Heller, B., Sherwood, R., & McKeown, N. (2012). The controller placement problem. Proceedings of the first workshop on Hot topics in software defined networks. https://doi.org/10.1145/2342441.2342444

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.