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Monocle: Dynamic, Fine-Grained Data Plane Monitoring
EPFL.
EPFL.
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Network Systems Laboratory (NS Lab).ORCID iD: 0000-0002-1256-1070
2015 (English)In: Proceedings of the 11th International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT), Association for Computing Machinery (ACM), 2015Conference paper, Published paper (Refereed)
Abstract [en]

Ensuring network reliability is important for satisfying service-level objectives. However, diagnosing network anomalies in a timely fashion is difficult due to the complex nature of network configurations. We present Monocle — a system that uncovers forwarding problems due to hardware or software failures in switches, by verifying that the data plane corresponds to the view that an SDN controller installs via the control plane. Monocle works by systematically probing the switch data plane; the probes are constructed by formulating the switch forwarding table logic as a Boolean satisfiability (SAT) problem. Our SAT formulation quickly generates probe packets targeting a particular rule considering both existing and new rules. Monocle can monitor not only static flow tables (as is currently typically the case), but also dynamic networks with frequent flow table changes. Our evaluation shows that Monocle is capable of finegrained monitoring for the majority of rules, and it can identify a rule suddenly missing from the data plane or misbehaving in a matter of seconds. Also, during network updates Monocle helps controllers cope with switches that exhibit transient inconsistencies between their control and data plane states

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2015.
National Category
Communication Systems Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-176478ISBN: 978-1-4503-3412-9 (print)OAI: oai:DiVA.org:kth-176478DiVA: diva2:867614
Conference
The 11th International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT)
Funder
EU, European Research Council, 259110
Note

QC 20151110

Available from: 2015-11-05 Created: 2015-11-05 Last updated: 2016-04-28Bibliographically approved

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fulltext(1379 kB)47 downloads
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Proceedings of the 11th International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT)

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Kostic, Dejan

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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  • vancouver
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More styles
Language
  • de-DE
  • en-GB
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  • Other locale
More languages
Output format
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