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Both available bit rate (ABR) service and unspecified bit rate (UBR) service with early packet discard (EPD) schemes have been considered for supporting data applications in ATM networks. Since the transmission control protocol (TCP) is perhaps the most widely used transport layer protocol in existing data networks, the performance of TCP over ATM using ABR and UBR services with EPD schems is of...
While both ABR and UBR services can be used to support data traffic in ATM, many ATM switch vendors consider UBR to be more attractive because of its low implementation cost in comparison with ABR. In this paper, we present a simulation study on the performance of TCP over ABR and UBR services in ATM networks. The motivation for our work is to understand the degree of improvement in TCP performance...
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