Multi-scheme recovery in MPLS networks

Jorge, Luísa; Gomes, Teresa

http://hdl.handle.net/10198/1991

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Authors

Jorge, Luísa

Gomes, Teresa

Abstract(s)

MultiProtocol Label Switching (MPLS) networks have been proposed as a solution to offer reliable, efficient and differentiated telecommunication services. Connection oriented technologies allow the use of traffic engineering approaches to select routes and are also expected to enhance the reliability of IP networks. Routing protocols can be robust and survivable but take a long time to recover from faults, which will not be acceptable for many applications. Therefore several schemes and frameworks for MPLS recovery have been proposed, some of which allow network recovery in the tens of milliseconds. In this work is proposed a multi-scheme recovery methodology, which intends to increase overall network resilience, while using network resources efficiently by taking into account resilience requirements of different class types. The objective of the methodology will be to offer protection to a set of services by choosing the most appropriate recovery scheme, taking into account the service class, the network state, and the characteristics of available recovery schemes. The appropriate recovery scheme will therefore be chosen based on a combination of quantitative measures and qualitative classification.