PERFORMANCE ISSUES IN PUBLIC ABR SERVICE

The performance of public available bit rate (ABR) service is discusse d in connection with the evolution of ATM switches. Public networks wi th first-generation switches provide ABR service with a limited peak c ell rate (PCR), while those with second-generation switches can provid e ABR service with any PCR. In such networks, TCP-over-ABR work; well. Point-to-multipoint ABR will be provided in advanced switches. A meth od is proposed for maintaining the throughput of point-to-multipoint A BR when the number of leaves is increased.