Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/96833
DC FieldValueLanguage
dc.contributor.authorSantos, Dorabella-
dc.contributor.authorVidal, Joao P.-
dc.contributor.authorGomes, Teresa Martinez dos Santos-
dc.contributor.authorMartins, Lúcia Maria dos Reis Albuquerque-
dc.date.accessioned2021-12-27T11:28:18Z-
dc.date.available2021-12-27T11:28:18Z-
dc.date.issued2021-11-21-
dc.identifier.citationS. Santos, J. P. Vidal, T. Gomes and L. Martins, "Improving East/Westbound SDN Connectivity via Enhanced Availability," 2021 12th International Conference on Network of the Future (NoF), 2021, pp. 1-9, doi: 10.1109/NoF52522.2021.9609898.pt
dc.identifier.isbn978-1-6654-2434-9-
dc.identifier.urihttps://hdl.handle.net/10316/96833-
dc.description.abstractThe control plane in software-defined networking (SDN) is composed by a logically centralized set of controllers wihich acts as the brain of the SDN network. These controllers need to be connected through east/westbound interfaces in order to have a synchronized view of the network and therefore it is a key issue to guarantee the intercontroller connectivity for a proper network behaviour. In the present work, the problem of controller placement under QoS constraints with the additional requirement of having the intercontroller connectivity with a given availability at minimum cost is addressed as a bi-objective problem. This problem is NP-complete and to tackle it a heuristic approach is proposed based on the problem decomposition into subproblems. In a previous heuristic to solve a less general problem, a similar strategy was followed based on the assumption that a Steiner tree connecting the controllers is the set of links that should be upgraded to achieve the required availability. In this paper a more general sub-graph is considered for intercontroller availability improvement, and an additional optimization level is also considered to address this more general problem. To assess the performance of the proposed heuristic a baseline heuristic to serve as a benchmark is also proposed. Index Terms—SDN, controller placement, availability, heuris-pt
dc.language.isoengpt
dc.publisherIEEEpt
dc.relationCENTRO-01-0145-FEDER-029312pt
dc.relationUIDB/00308/2020pt
dc.rightsembargoedAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectSDNpt
dc.subjectcontroller placementpt
dc.subjectavailabilitypt
dc.subjectheuristicspt
dc.subjectinteger linear programmingpt
dc.subjectbi-objectivept
dc.titleImproving East/Westbound SDN Connectivity via Enhanced Availabilitypt
dc.typearticlept
degois.publication.firstPage1pt
degois.publication.lastPage9pt
degois.publication.location12th International Conference on Network of the Future (NoF), 2021pt
dc.relation.publisherversionhttps://ieeexplore.ieee.org/document/9609898pt
dc.peerreviewedyespt
dc.identifier.doi10.1109/NoF52522.2021.9609898-
dc.date.embargo2022-05-20*
uc.date.periodoEmbargo180pt
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.researchunitINESC Coimbra – Institute for Systems Engineering and Computers at Coimbra-
crisitem.author.researchunitINESC Coimbra – Institute for Systems Engineering and Computers at Coimbra-
crisitem.author.researchunitINESC Coimbra – Institute for Systems Engineering and Computers at Coimbra-
crisitem.author.orcid0000-0003-0368-2222-
crisitem.author.orcid0000-0002-3084-5608-
crisitem.author.orcid0000-0002-6534-0159-
crisitem.project.grantnoInstitute for Systems Engineering and Computers at Coimbra - INESC Coimbra-
Appears in Collections:FCTUC Eng.Electrotécnica - Artigos em Livros de Actas
I&D INESCC - Artigos e Resumos em Livros de Actas
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