Performance of ATM available bit rate for bursty TCP sources and interfering traffic

The Available Bit Rate (ABR) service has been shown to enable persistent, greedy data sources to e ciently utilize ATM network resources. However, the throughput for bursty TCP over ABR data tra c in the presence of interfering tra c may not be as good as for persistent ABR sources without interfering tra c. This paper shows that in a comparison of rate based ABR schemes (EPRCA and ERICA) and a credit based ABR scheme (QFC), QFC performance is signi cantly better than rate based ABR schemes for bursty data tra c with bursty interfering tra c.