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ACHO: a framework for flexible re-orchestration of virtual network functions

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Telemáticaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Network Technologieses
dc.contributor.authorGarcía Avilés, Ginés
dc.contributor.authorDonato, Carlos
dc.contributor.authorGramaglia, Marco
dc.contributor.authorSerrano Yáñez-Mingot, Pablo
dc.contributor.authorBanchs Roca, Albert
dc.contributor.funderEuropean Commissiones
dc.date.accessioned2020-10-22T11:46:14Z
dc.date.available2022-10-24T23:00:06Z
dc.date.issued2020-10-24
dc.description.abstractNetwork Function Virtualization enables network slicing as a novel paradigmfor service provisioning. With network slicing, Virtual Network Functions(VNFs) can be instantiated at different locations of the infrastructure, choosing their optimal placement based on parameters such as the requirementsof the service or the resources available. One limitation of state-of-the-arttechnology for network slicing is the inability to re-evaluate orchestration decisions once the slice has been deployed, in case of changing service demandsor network conditions.In this paper, we present ACHO, a novel software framework that enablesseamless re-orchestration of VNFs of any kind, including RAN and Core.With ACHO, VNFs and resources can be easily re-assigned to match, e.g.,varying user demands or changes in the nodes' load. ACHO uses lightweightmechanisms, such as splitting the engine of a VNF from the data it requiresto perform its operation, in such a way that, when re-allocating a VNF, onlythe data is moved (a new engine is instantiated in the new location). Wedemonstrate the use of ACHO in a small scale testbed, showing that (i) theproposed re-orchestration is feasible, (ii) it results much faster than existingalternatives (especially for relocation), and (iii) the framework can be readilyapplied to existing VNFs after minimal changes to their implementation.en
dc.description.sponsorshipThis work was partially supported by the European Commission in the framework of the H2020 5G-PPP 5G-TOURS (Grant no. 856950) project and the 5G-EVE (Grant no. 815074) project.en
dc.format.extent11es
dc.identifier.bibliographicCitationComputer Networks, 158, Oct. 2020, 107382, 11 Pp.en
dc.identifier.doihttps://doi.org/10.1016/j.comnet.2020.107382
dc.identifier.issn1389-1286
dc.identifier.issn1872-7069 (online)
dc.identifier.publicationfirstpage107382-1es
dc.identifier.publicationlastpage107382-11es
dc.identifier.publicationtitleComputer Networksen
dc.identifier.publicationvolume180es
dc.identifier.urihttps://hdl.handle.net/10016/31278
dc.identifier.uxxiAR/0000025420
dc.language.isoengen
dc.publisherElsevier B.V.en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/856950/5G-TOURSes
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/815074/5G-EVEes
dc.rights© 2020 Elsevier B.V. All rights reserved.en
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaTelecomunicacioneses
dc.subject.other5g mobile communicationen
dc.subject.otherComputer network managementen
dc.subject.otherNetwork architectureen
dc.subject.otherNetwork function virtualizationen
dc.titleACHO: a framework for flexible re-orchestration of virtual network functionsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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