The Analysis on the cell loss of ABR traffic with on/off characteristic

摘要

The ATM forum defined the available bit rate (ABR) service as a method to provide rapid access to the unused network bandwidth. That service supports mainly on the data traffic which is insensitive to the transfer delay and the delay variation. For the above purpose, the key is how to design the size of the ATM switch's buffer. At present, since most of data traffic is generated by computers and has the on/off characteristic, we analyzed the ABR traffic source with that characteristic and deduced the equation with which the cell loss rate with multiple on/off traffic sources can be evaluated. At last, an ATM LAN with 12 ports is simulated. For designing the ATM switch's buffer with on/off ABR traffic, all results have directive significance.