Date Added: Feb 2011
ATM is representative of the connection-oriented resource provisioning class of protocols. The ATM network is expected to provide end-to-end QoS guarantees to connections in the form of bounds on delays, errors and/or losses. Performance management in ATM network depend upon different parameters. ABR flow control is one of the important parameter for performance management. In this paper, the authors shall focus on the ABR flow control. Available Bit Rate (ABR) service is becoming more and more important in Asynchronous Transfer Mode (ATM) networks because it can be used to fill in the bandwidth slack left by the scheduling traffic. Recently, two flow control scheme for ABR traffic were under active discussion. They are credit-based flow control scheme and rate-based flow control scheme.