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The main contribution of this paper is a new algorithm for dynamic routing of bandwidth guaranteed tunnels. The algorithm is a generalization of the "minimum-interference" based algorithm. The routing objective is to satisfy as many potential future requests as possible in an environment where requests arrive one-by-one, and there is no knowledge of future arrivals other than their potential ingress-egress points. An application of these algorithms is for the routing of MPLS bandwidth-guaranteed Label-Switched Paths (LSPs). The presented algorithm performs better than the scheme, and other previously proposed algorithms, on several metrics like the number of rejected demands and successful re-routing of demands upon link failure.

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Format:PDFSize:349 KB
Date:Jan 2009
Pages:10

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