Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/95444
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dc.contributor.authorMelo, Manuel Paulo Albuquerque-
dc.contributor.authorJorge, Luísa Maria Garcia-
dc.contributor.authorGomes, Teresa Martinez dos Santos-
dc.date.accessioned2021-07-15T14:26:27Z-
dc.date.available2021-07-15T14:26:27Z-
dc.date.issued2021-07-12-
dc.identifier.citationP. Melo, L. Jorge and T. Gomes, "Failure Simulation in Software-Defined Networks with Differential Link Availability," 2021 17th International Conference on the Design of Reliable Communication Networks (DRCN), 2021, pp. 1-6, doi: 10.1109/DRCN51631.2021.9477369.pt
dc.identifier.isbn978-1-6654-2234-5-
dc.identifier.urihttp://hdl.handle.net/10316/95444-
dc.description.abstractIn Software-Defined Networks (SDN) the placement of controllers is an important factor for overall network reliability. Whereas most studies assume that all links have similar link failure rates/availability, placing controllers taking into account differences in link availability can yield advantages. This is even more relevant if the network is designed with a particular subset of high availability links (a spine). After presenting integer linear programming formulations to support controller placement considering differential link availability, we propose a simulation approach to verify the reliability change due to that placement. From a simulational study using 2 networks, 30 different link availability configurations we found a definite advantage in overall reliability in using the knowledge of high availability links to place the controllers. However, while there were also advantages to using certain spines for individual networks, these advantages were not uniform, and varied according to networks, the number of controllers placed and link availability ratio. Further work is suggested to check whether fault patterns may influence the reliability advantage of individual spines.pt
dc.description.sponsorshipThis work has been partially funded by ERDF Funds through the Centre’s Regional Operational Program and by National Funds through the FCT - Fundação para a Ciência e a Tecnologia, I.P. under the project CENTRO-01-0145-FEDER-029312, and also by FCT Grants UIDB/00308/2020 (INESC Coimbra), UIDB/05757/2020 (CeDRI), and UIDB/05037/2020 (CeBER).pt
dc.language.isoengpt
dc.publisherIEEE Xplorept
dc.relationCENTRO-01-0145-FEDER-029312pt
dc.relationUIDB/00308/2020pt
dc.relationUIDB/05757/2020pt
dc.relationFCT - Fundação para a Ciência e a Tecnologia, I.P., Project UIDB/05037/2020pt
dc.rightsembargoedAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectInformation technologypt
dc.subjectInformation technologypt
dc.subjectTelecommunicationpt
dc.subjectComputer sciencept
dc.titleFailure Simulation in Software-Defined Networks with Differential Link Availabilitypt
dc.typearticlept
degois.publication.firstPage1pt
degois.publication.lastPage6pt
degois.publication.location2021 17th International Conference on the Design of Reliable Communication Networks (DRCN)pt
dc.relation.publisherversionhttps://ieeexplore.ieee.org/document/9477369pt
dc.peerreviewedyespt
dc.identifier.doi10.1109/DRCN51631.2021.9477369-
dc.date.embargo2022-07-12*
uc.date.periodoEmbargo365pt
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.languageiso639-1en-
crisitem.author.deptFaculty of Economics-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.researchunitINESC Coimbra – Institute for Systems Engineering and Computers at Coimbra-
crisitem.author.researchunitCeBER – Centre for Business and Economics Research-
crisitem.author.researchunitINESC Coimbra – Institute for Systems Engineering and Computers at Coimbra-
crisitem.author.orcid0000-0002-9166-0615-
crisitem.author.orcid0000-0002-3084-5608-
Appears in Collections:I&D CeBER - Artigos e Resumos em Livros de Actas
FEUC- Artigos em Livros de Actas
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