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Scalable Architecture for Service Function Chain Orchestration
Ghent University, Belgium.
Ghent University, Belgium.
Budapest University of Technology and Economics, Hungary.
Budapest University of Technology and Economics, Hungary.
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2015 (English)In: 2015 Fourth European Workshop on Software Defined Networks, 2015, p. 19-24, article id 7313590Conference paper, Published paper (Refereed)
Abstract [en]

Network Function Virtualization (NFV) enables to implement network functions in software, high-speed packet processing functions which traditionally are dominated by hardware implementations. Virtualized Network Functions (NFs) may be deployed on generic-purpose servers, e.g., in datacenters. The latter enables flexibility and scalability which previously were only possible for web services deployed on cloud platforms. The merit of NFV is challenged by control challenges related to the selection of NF implementations, discovery and reservation of sufficient network and server resources, and interconnecting both in a way which ful fills SLAs related to reliability and scalability. This paper details the role of a scalable orchestrator in charge of finding and reserving adequate resources. The latter will steer network and cloud control and management platforms to actually reserve and deploy requested services. We highlight the role of involved interfaces, propose elements of algorithmic components, and will identify major blocks in orchestration time in a proof of concept prototype which accounts for most functional parts in the considered architecture. Based on these evaluations, we propose several architectural enhancements in order to implement a highly scalable network orchestrator for carrier and cloud networks.

Place, publisher, year, edition, pages
2015. p. 19-24, article id 7313590
Keywords [en]
Hardware, Packet networks, Scalability, Software defined networking, Transfer functions, Web services, Architectural enhancement, Control challenges, Hardware implementations, High-speed packet processing, Network functions, Scalable architectures, Scalable networks, Service functions, Network architecture
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-35446DOI: 10.1109/EWSDN.2015.55Scopus ID: 2-s2.0-84962459564ISBN: 978-1-5090-0180-4 (electronic)OAI: oai:DiVA.org:ri-35446DiVA, id: diva2:1263157
Conference
4th European Workshop on Software Defined Networks (EWSDN 2015), September 30 - October 2, 2015, Bilbao, Spain
Available from: 2018-11-14 Created: 2018-11-14 Last updated: 2019-07-12Bibliographically approved

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Sköldstrom, Pontus

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