On congestion control in ATM networks

The origin of congestion control problems in asynchronous transfer mode (ATM) networks is described. The main overall congestion control strategies that have been proposed are summarized. The set of mechanisms that constitute a general framework for congestion control consists of admission control, usage parameter control, relative cell delay/loss priority, and flow/reactive control mechanisms. Depending on their service scenarios, the overall congestion control schemes of different networks may consist of different combinations of these mechanisms. Furthermore, different networks may realize the same mechanism through the use of different algorithms and implementations. The basic techniques that could be used in implementing the overall congestion control of an ATM network are discussed.<>