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Abstract
The GMPLS standardization is paving the way for the implementation of new configurable traffic engineering (TE) policies for transport networks. This paper takes aim at evaluating the effects of using bandwidth-dependent TE metrics in a centralized Path Computation System (PCS), suited for handling the routing requests in an operational transport network with a GMPLS control plane. The results of an intensive testing campaign show an evident improvement in the utilization of network resources when such TE metrics are enabled, whatever survivability requirement is imposed on the LSP (e.g. classical 1+1 protection, pre-planned or On-the-Fly restoration, etc.). Moreover, a simple policy function is suggested as a good trade-off between the achievable performance and the computing load on CPU.
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Published on 01/01/2006
Volume 2006, 2006
DOI: 10.1007/0-387-23178-1_27
Licence: CC BY-NC-SA license
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