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Abstract

A method using an explicit rate that has a resource management cell 20 on a virtual circuit circling a network on a multicast system, every predetermined number of cells per resource management cell 10. Each switch node 12 computes a rate it can support called the minimum average cell rate. The minimum average cell rate is computed by dividing ?the total available bandwidth for a bottlenecked set of virtual circuits multiplied by a constant (a)! by ?a total number of bottlenecked virtual circuits multiplied by a variable (t)!. The switch node 12 marks the virtual circuit bottlenecked at that switch node 12. The explicit cell rate of the resource management cell 20 is set to the lower of the two values: the explicit cell rate of the resource management cell when it enters the switch node or the minimum average cell rate. The explicit cell rate of the resource management cell sets explicit cell rate of data cells and resource management cells transmitted by the source node after the source node receives the resource management cell.

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