| 摘要 |
<p>The invention relates to a method and a system for congestion management in a Frame Relay network. The method comprises determining the virtual channel associated with a frame to be transmitted when it is received at a network node. In order for the relay capacity of the network to be equitably divided between all subscribers (a) data is buffered at the input boundary of the subscriber node to virtual-channel-specific buffers (621...62n), (b) congestion notifications (M) are transmitted in a backward direction from the network nodes to the subscriber node of the virtual channel whose frame is received at that particular moment, and (c) the amount of traffic supplied towards the network from the subscriber node buffer corresponding to said virtual channel during a certain interval having a predetermined length is controlled on the basis of the contents of congestion notifications (M) received from the network during said interval.</p> |
