Hashing based traffic partitioning in a multicast-multipath MPLS network model

Authors:
Xavier Hesselbach;Ramón Fabregat;Benjamín Baran;Yezid Donoso;Fernando Solano;Mónica Huerta
Affiliations:
Technical University of Catalonia, Barcelona (Spain);IliA University of Girona, Girona (Spain);National University of Asuncion, San Lorenzo (Paraguay);Universidad del Norte, Barranquilla (Colombia);IliA University of Girona, Girona (Spain);Technical University of Catalonia, Barcelona (Spain)
Venue:
LANC '05 Proceedings of the 3rd international IFIP/ACM Latin American conference on Networking
Year:
2005

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Abstract

Load Balancing is a key mechanism in traffic engineering. One interesting strategy for load balancing enhancement is the multipath approach, in which data is transmitted through different paths. The use of effective hashing functions for load balancing optimizes the network utilization and reduces packet disordering and imbalance. This paper address the problem of packet ordering in multipath - multicast MPLS networks, studies the impact of the hashing function to effectively partition the traffic to implement the flow splitting values issued from an optimized model and analyzes the traffic allocation to the LSPs of the network and the mis-ordering problem at the egress node using buffer schemes. The buffer allocation levels are calculated according to end-to-end delays. Finally, the paper presents some experimental results from an optimized network.