The role of location of traffic control in internetwork gateways

Summary form only given. An evaluation of window-based gateway-to-gateway-level congestion control in an interconnected network environment is reported. Two dynamic control algorithms proposed by the author are intended to operate the system below the critical internetwork load that gives rise to congestion at gateways and connected networks. In one of the algorithms, source gateways regulate the traffic flow, whereas in the other, destination gateways provide the control. The algorithms provide further control to static window protocol by adjusting the window size in accordance with the availability of network resources at the destination. A comparison of the two algorithms has shown that controlling the internetwork messages at the destination gateway produces better performance results than control at the source gateway

Dynamic congestion control in interconnected computer networks

In interconnected networks, the performance of a network is affected heavily by the traffic transmitted from other networks. A network may become subject to congestion when the internetwork traffic increases rapidly. It is well known that congestion gives rise to a degradation in network performance. In this paper, we evaluate window-based congestion control mechanism in an internetwork environment. We also propose and study two dynamic window congestion control algorithms. These algorithms provide further control to window mechanism by adjusting the window size in accordance with the availability of the network resources at the destination. Dynamic algorithms are evaluated as compared with fixed window control by means of computer simulation. NW:Netvork GN:G.leWay Figur

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