Store-and-forward communication networks with no effective means of flow control are subject to congestion under heavy load conditions. In this paper a distributed congestion control policy, called PF-C, with nodal buffer management strategy based on traffic priorities is proposed and analyzed. The limited number of buffers (limit value) at any node to be occupied by each class of packets are assigned. The mechanism of this policy is that a packet which arrived at a given node is rejected if the total number of allocated buffers exceeds a limit value corresponding to its class. Rejected packets are dropped from the network and considered as lost. This policy is analyzed in the context of symmetrical networks, whereby a queueing model is developed.
|Number of pages||8|
|Journal||Transactions of the Institute of Electronics and Communication Engineers of Japan. Section E|
|Publication status||Published - 1984 May|
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