A method for congestion control in atm networks using peak rate throttling

Abstract

AbstractThis paper presents a technique, called peak rate throttling, for congestion control of controllable, variable bit rate traffic in ATM (asynchronous transfer mode) networks. It is much less conservative than techniques that have already been proposed. This is because techniques already proposed take no account of the load that is actually being carried by the network. Techniques already proposed assign a predetermined share of network capacity to connections regardless of what is actually being used. The technique proposed here works by throttling the peak bit rate that a user is allowed to send on a connection when the network detects a rising network load that may increase the cell loss rate of connections to greater than an acceptable limit. Users are still permitted to send whatever average bit rate they require, however. The technique relies on the assumption that the load offered to network links is stationary for a long enough period so that controlling action does not need to be performed too often or too quickly.It is feasible to achieve congestion control of a network using peak bit rate throttling alone and no other technique apart from connection control.