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ESPRES: Transparent SDN Update Scheduling
EPFL.
EPFL.
Université catholique de Louvain.
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (NSLAB)ORCID iD: 0000-0002-1256-1070
2014 (English)In: Proceedings of the Workshop on Hot Topics in Software Defined Networking (HotSDN), Association for Computing Machinery (ACM), 2014Conference paper, Published paper (Refereed)
Abstract [en]

Network forwarding state undergoes frequent changes, in batches of forwarding rule modifications at multiple switches. Installing or modifying a large number of rules is time consuming given the performance limits of current programmable switches, which are also due to economical factors in addition to technological ones.

In this paper, we observe that a large network-state update typically consists of a set of sub-updates that are independent of one another w.r.t. the traffic they affect, and hence sub-updates can be installed in parallel, in any order. Leveraging this observation, we treat update installation as a scheduling problem and design ESPRES, a runtime mechanism that rate-limits and reorders updates to fully utilize processing capacities of switches without overloading them. Our early results show that compared to using no scheduler, our schemes yield 2.17-3.88 times quicker sub-update completion time for 20th percentile of sub-updates and 1.27-1.57 times quicker for 50th percentile.

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2014.
Keyword [en]
Software-Dened Networking, Performance, Update scheduling
National Category
Computer Science
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-146722DOI: 10.1145/2620728.2620747Scopus ID: 2-s2.0-84907017728ISBN: 978-1-4503-2989-7 (print)OAI: oai:DiVA.org:kth-146722DiVA: diva2:724935
Conference
Workshop on Hot Topics in Software Defined Networking (HotSDN),August 22, 2014, Chicago, USA
Note

QC 20140716

Available from: 2014-06-13 Created: 2014-06-13 Last updated: 2014-07-16Bibliographically approved

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fulltext(1326 kB)74 downloads
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