Use of backup trees to improve resource efficiency of MPLambdaS protection mechanisms", Proceedings of the Third International Workshop on Design of reliable communication networks (DRCN 2001), "Price and Value of Reliability", 7-10 October

Multi-Protocol Lambda Switching (MPλS), the MPLS "label switching paradigm " applied to the optical networking domain, is a promising solution for the dynamic control of Optical Transport Networks (OTNs). To protect the huge amount of traffic carried by an OTN against network failures, MPLS protection techniques (based on pre-established backup paths) can be applied with some modifications. Unfortunately, in an MPλS network, these protection techniques suffer from the fact that the capacity they consume cannot be shared among different single network failures (leading to so-called dedicated protection). In order to reduce the amount of consumed protection capacity, a novel potential improvement based on “backup trees ” is introduced. It will be investigated quantitatively how much capacity savings are to be expected by the use of backup trees. KEYWORDS

Use of Backup Trees to Improve Resource Efficiency of MPλS Protection Mechanisms

Multi-Protocol Lambda Switching (MPlS), the MPLS "label switching paradigm" applied to the optical networking domain, is a promising solution for the dynamic control of Optical Transport Networks (OTNs). In an OTN, as a result of the huge amount of traffic being carried by the links and going through nodes, single network failures have a huge impact, affecting a lot of traffic. Therefore, without doubt there is a need for protection