A New Branch Point Algorithm for ABR Multipoint Connections in ATM Networks

Dong-Ho KIM  You-Ze CHO  

IEICE TRANSACTIONS on Communications   Vol.E84-B    No.4    pp.992-999
Publication Date: 2001/04/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Switching
asynchronous transfer mode (ATM),  available bit rate,  multicast,  branch point algorithm,  feedback consolidation,  

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In this paper, we first investigate the problems of the existing branch point algorithms for available bit rate (ABR) multicast connections in ATM networks, and then propose various solutions for resolving those problems. By combining these solutions, we also propose a new efficient and scalable branch point algorithm. In the proposed algorithm, each branch point stores the feedback information on a per-branch basis for each virtual connection and only passes BRM cells returning from the farthest destination. Simulation results show that the proposed algorithm can provide a good fairness, a higher efficiency and an excellent scalability, compared with the existing algorithms.