Abstract: A crucial concern in ABR traffic management for multipoint-to-point connections is how to define fairness within a multicast group,and among multicast groups and unicast connections.Another problem is that AAL5 does not have any provision within its cell format for the interleaving of cells.We extend the max-min fairness to multipoint-to-point environment and propose a new efficient multipoint-to-point switch algorithm at merging point to solve the interleaving problem and allocate bandwidth fairly among multicast sources.The simulation results show that our mechanism provides fair bandwidth allocation and short queue length at wsitch node,while the convergence time is limited.

Key words: ATM, ABR service, max-min fairness, traffic management, multipoint-to-point connections