QoS protection optimisation for MPLS

Authors:
Rawya Rizk;Alyaa Elmaghraby;Mahmoud Marie
Affiliations:
Electrical Engineering Department, Port Said University, Port Said, 42523, Egypt.;Electrical Engineering Department, Port Said University, Port Said, 42523, Egypt.;Computers and Systems Engineering Department, Al-Azhar University, Cairo, Egypt
Venue:
International Journal of Communication Networks and Distributed Systems
Year:
2011

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Abstract

Path protection is an important aspect to realise uninterrupted transmission in case of failure MPLS-based networks. In this paper, it is shown that none of the existing protection backup path methods is optimal at all protection parameters and network constraints. Hence, a general QoS backup protection optimisation policy applicable to a wide range of network situations and traffic types is proposed. A comparison between the proposed policy and the conventional protection backup methods is performed. The numerical results show a significant improvement of the proposed QoS protection over conventional protection backup methods at variable protection parameters, network constraints and traffic types.