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Compact node-link formulations for the optimal single path MPLS Fast Reroute layout

Żukowski C., Tomaszewski A., Pióro M., Hock D., Hartmann M., Menth M.

Advances in Electronics and Telecommunications

2011

Vol. 2, no. 3

55--60

This paper discusses compact node-link formulations for MPLS fast reroute optimal single path layout. We propose mathematical formulations for MPLS fast reroute local protection echanisms. In fact, we compare one-to-one (also called detour) local protection and many-to-one (also called facility backup) local protection mechanisms with respect to minimized maximum link utilization. The optimal results provided by the node-links are compared with the suboptimal results provided by algorithms based on non-compact linear programming (path generation) approach and IP-based approach.