A decentralised-control protocol for Source Specific Multicast

Authors:
Khalid Al-Begain;Yewen Cao
Affiliations:
School of Computing, University of Glamorgan, CF37 1DL, Wales, UK.;School of Computing, University of Glamorgan, CF37 1DL, Wales, UK
Venue:
International Journal of High Performance Computing and Networking
Year:
2006

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Abstract

A novel Source Specific Multicast (SSM) protocol, called Scalable Recursive Multicast (SREM) is proposed. Unlike existing SSM protocols, which in general use the source-centralised control mechanism, SREM is a decentralised-control multicast scheme. A pair of Branch Node Messages (BNMs) is introduced to construct a branching node-based multicast tree, which is built up gradually, locally and dynamically as group members join/leave. Delivering multicast packets is carried out recursively between BN Routers by unicast. SREM has fixed size control messages, and low join/leave latency and is scalable. Simulation shows that SREM outperforms recently proposed algorithms in terms of processing and delivering costs.