Show simple item record

dc.contributor.authorBorne, Sylvie
dc.contributor.authorGourdin, Eric
dc.contributor.authorLiau, Bernard
dc.contributor.authorLime, Didier
dc.subjectIP-over-optical networken
dc.subjectInteger programmingen
dc.subjectBranch-and-Cut algorithmen
dc.titleDesign of Survivable IP-over-Optical Networksen
dc.typeArticle accepté pour publication ou publié
dc.contributor.editoruniversityotherFrance Telecom;France
dc.contributor.editoruniversityotherUniversité Blaise Pascal - Clermont Ferrand II;France
dc.description.abstractenIn the past years, telecommunications networks have seen an important evolution with the advances in optical technologies and the explosive growth of the Internet. Several optical systems allow a very large transport capacity, and data traffic has dramatically increased. Telecommunications networks are now moving towards a model of high-speed routers interconnected by intelligent optical core networks. Moreover, there is a general consensus that the control plan of the optical networks should utilize IP-based protocols for dynamic provisioning and restoration of lightpaths. The interaction of the IP routers with the optical core networks permits to achieve end-to-end connections, and the lightpaths of the optical networks define the topology of the IP network. This new infrastructure has to be sufficiently survivable, so that network services can be restored in the event of a catastrophic failure. In this paper we consider a multilayer survivable network design problem that may be of practical interest for IP-over-optical neworks. We give an integer programming formulation for this problem and discuss the associated polytope. We describe some valid inequalities and study when these are facet defining. We discuss separation algorithms for these inequalities and introduce some reduction operations. We develop a Branch-and-Cut algorithm based on these results and present extensive computational results.en
dc.relation.isversionofjnlnameAnnals of Operations Research
dc.relation.isversionofjnlpublisherSpringer Netherlandsen
dc.subject.ddclabelRecherche opérationnelleen

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record