Performance Evaluation of Resource Allocation models MPLS

In the RFC4128 (Lai, 2005) a performance evaluation presents the benefits and the trade-offs between the Russian Dolls and the Maximum allocation models. The study aimed on the comparison and the trade-off between a better efficiency under ordinary via bandwidth sharing AND a class robust/protection under overload conditions. Results showed that the Russian Dolls model allowed greater sharing of bandwidth among different classes performing better under normal conditions. On the other hand the Maximum Allocation Model does not depend on preemption and provides a more robust class isolation under overload conditions. The use of preemption gives higher-priority traffic some level of immunity to the overloading of other classes, which resulted in higher blocking/preemption for the overloaded class than in a pure blocking environment (Din, et al. 2008).

Din, N.; Hakimie, H. & Fisal, N. (2008), 'Bandwidth sharing scheme in DiffServ-aware MPLS networks ''Telecommunications and Malaysia International Conference on Communications, 2007. ICT-MICC 2007. IEEE International Conference on', IEEE, 782?787.

Lai, W. (2005), 'Bandwidth Constraints Models for Differentiated Services (Diffserv)-aware MPLS Traffic Engineering: Performance Evaluation', RFC 4128, June 2005.