ABSTRACT
One important function offered by asynchronous transfer mode (ATM) networks is traffic control to guarantee Quality of Service requirements. Several studies have addressed the traffic control issues of connection admission control, usage parameter control (VPC), bandwidth allocation, traffic measurement, flow control, and traffic shaping. The worst pattern increases the cell loss rate of the ATM network. This realizes a form of connection admission control. Measurement techniques are sometimes used to estimate the residual bandwidth of ATM. Equivalent bandwidth is determined from the measurement results. The technique uses traffic characteristics such as video or voice and makes it easy to calculate the equivalent bandwidth. Traffic shaping for VPC circuit is used to mold the user traffic to the ideal pattern. In ATM networks, if a source violates the traffic parameters, the probability of congestion increases. The network must control the source traffic stream and detect the violating cells.
