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Conference Paper


Flow Control Models in Computer Networks


A packet-switched network can be considered as a distributed pool of productive resources whose capacity must be shared dynamically by a community of competing users. Key advantages of dynamic sharing compared to the more traditional circuit switching approach are related to greater speed, flexibility, and more efficient use of network resources. These are, however, also drawbacks, as, for instance, the danger of an occurrence of congestion effects, if the demands are allowed to exceed the system capacity. Special types of control, called 'flow control' procedures, are used to avoid the occurrence of such effects. Flow control can be exercised at various levels in a packed network. The present investigation is mainly concerned with transport level flow control, that is, the flow control applied to individual user connections. The purpose of transport flow control is to regulate the flow on each connection so as to avoid congestion of network and end user buffers.


Information & Date

In IMACS Congress on System Simulation, Montreal, Canada, August. 1982


Mario Gerla