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QoS online routing and MPLS multilevel protection: a survey

A survey of MPLS protection methods and their utilization in combination with online routing methods is presented in this article. Usually, fault management methods pre-establish backup paths to recover traffic after a failure. In addition, MPLS allows the creation of different backup types, and hence MPLS is a suitable method to support traffic-engineered networks. In this article, an introduction of several label switch path backup types and their pros and cons are pointed out. The creation of an LSP involves a routing phase, which should include QoS aspects. In a similar way, to achieve a reliable network the LSP backups must also be routed by a QoS routing method. When LSP creation requests arrive one by one (a dynamic network scenario), online routing methods are applied. The relationship between MPLS fault management and QoS online routing methods is unavoidable, in particular during the creation of LSP backups. Both aspects are discussed in this article. Several ideas on how these actual technologies could be applied together are presented and compared

IEEE

Author: Marzo i Lázaro, Josep Lluís
Calle Ortega, Eusebi
Scoglio, Caterina
Anjali, Tricha
Abstract: A survey of MPLS protection methods and their utilization in combination with online routing methods is presented in this article. Usually, fault management methods pre-establish backup paths to recover traffic after a failure. In addition, MPLS allows the creation of different backup types, and hence MPLS is a suitable method to support traffic-engineered networks. In this article, an introduction of several label switch path backup types and their pros and cons are pointed out. The creation of an LSP involves a routing phase, which should include QoS aspects. In a similar way, to achieve a reliable network the LSP backups must also be routed by a QoS routing method. When LSP creation requests arrive one by one (a dynamic network scenario), online routing methods are applied. The relationship between MPLS fault management and QoS online routing methods is unavoidable, in particular during the creation of LSP backups. Both aspects are discussed in this article. Several ideas on how these actual technologies could be applied together are presented and compared
Document access: http://hdl.handle.net/2072/58652
Language: eng
Publisher: IEEE
Rights: Tots els drets reservats
Subject: MPLS (Norma)
Protocols de xarxes d’ordinadors
Telecomunicació -- Sistemes de commutació
Commutació de paquets (Transmissió de dades)
Packet switching (Data transmission)
MPLS standard
Telecommunication -- Switching systems
Title: QoS online routing and MPLS multilevel protection: a survey
Type: info:eu-repo/semantics/article
Repository: Recercat

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