Effects of rerouting after service disruption in MPLS based networks

Authors:
Bjørn Jæger;Ketil Danielsen
Affiliations:
Molde University College, Molde, Norway;Molde University College, Molde, Norway
Venue:
AIC'06 Proceedings of the 6th WSEAS International Conference on Applied Informatics and Communications
Year:
2006

Citing 4
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Abstract

This paper considers the effects of dynamic restoration routing after a failure in MPLS based networks. MPLS technology enables scalable VPNs and end-to-end QoS over the Internet which requires efficient fault recovery in presence of link or node failures. A major factor on network performance after a failure is the transient congestion that results from restored connections trying to retransmit packets lost since the failure. We focus on the importance of appropriate selection of a rerouting algorithm to control the transient congestion, and we present results from a simulation-based performance study of several routing algorithms. The results show that proper selection of fault recovery routing algorithm can improve MPLS-network performance after a failure.