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https://hdl.handle.net/10316/96833
Título: | Improving East/Westbound SDN Connectivity via Enhanced Availability | Autor: | Santos, Dorabella Vidal, Joao P. Gomes, Teresa Martinez dos Santos Martins, Lúcia Maria dos Reis Albuquerque |
Palavras-chave: | SDN; controller placement; availability; heuristics; integer linear programming; bi-objective | Data: | 21-Nov-2021 | Editora: | IEEE | Citação: | S. 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. | Projeto: | CENTRO-01-0145-FEDER-029312 UIDB/00308/2020 |
Local de edição ou do evento: | 12th International Conference on Network of the Future (NoF), 2021 | Resumo: | The 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- | URI: | https://hdl.handle.net/10316/96833 | ISBN: | 978-1-6654-2434-9 | DOI: | 10.1109/NoF52522.2021.9609898 | Direitos: | embargoedAccess |
Aparece nas coleções: | FCTUC Eng.Electrotécnica - Artigos em Livros de Actas I&D INESCC - Artigos e Resumos em Livros de Actas |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Santos_et_al_NoF2021_EstudoGeral.pdf | Santos et al, Improving East/Westbound SDN Connectivity via Enhanced Availability, NoF 2021 | 499.96 kB | Adobe PDF | Ver/Abrir |
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