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Minimum interference routing with fast protection

One of the most effective techniques offering QoS routing is minimum interference routing. However, it is complex in terms of computation time and is not oriented toward improving the network protection level. In order to include better levels of protection, new minimum interference routing algorithms are necessary. Minimizing the failure recovery time is also a complex process involving different failure recovery phases. Some of these phases depend completely on correct routing selection, such as minimizing the failure notification time. The level of protection also involves other aspects, such as the amount of resources used. In this case shared backup techniques should be considered. Therefore, minimum interference techniques should also be modified in order to include sharing resources for protection in their objectives. These aspects are reviewed and analyzed in this article, and a new proposal combining minimum interference with fast protection using shared segment backups is introduced. Results show that our proposed method improves both minimization of the request rejection ratio and the percentage of bandwidth allocated to backup paths in networks with low and medium protection requirements

IEEE

Author: Calle Ortega, Eusebi
Urra i Fàbregas, Anna
Marzo i Lázaro, Josep Lluís
Geng-Sheng, Kuo
Hai-Bo, Guo
Abstract: One of the most effective techniques offering QoS routing is minimum interference routing. However, it is complex in terms of computation time and is not oriented toward improving the network protection level. In order to include better levels of protection, new minimum interference routing algorithms are necessary. Minimizing the failure recovery time is also a complex process involving different failure recovery phases. Some of these phases depend completely on correct routing selection, such as minimizing the failure notification time. The level of protection also involves other aspects, such as the amount of resources used. In this case shared backup techniques should be considered. Therefore, minimum interference techniques should also be modified in order to include sharing resources for protection in their objectives. These aspects are reviewed and analyzed in this article, and a new proposal combining minimum interference with fast protection using shared segment backups is introduced. Results show that our proposed method improves both minimization of the request rejection ratio and the percentage of bandwidth allocated to backup paths in networks with low and medium protection requirements
Document access: http://hdl.handle.net/2072/59081
Language: eng
Publisher: IEEE
Rights: Tots els drets reservats
Subject: Commutació de paquets (Transmissió de dades)
Dades -- Transmissió
Ordinadors, Xarxes d’
Telecomunicació -- Sistemes de commutació
Computer networks
Data transmission systems
Packet switching (Data transmission)
Telecommunication -- Switching systems
Title: Minimum interference routing with fast protection
Type: info:eu-repo/semantics/article
Repository: Recercat

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