Patent ID: 6167027
Filing Date: 2000-12-26
Classification: H04L

Abstract:
A method for controlling X.25 data traffic at an access node of a packet switching network, said X.25 data traffic being provided from sources which continue to transmit traffic only where acknowledgments of previously-transmitted traffic are received on a predetermined basis, said access node implementing a leaky bucket admission control mechanism in which tokens are added to a pool at a predetermined rate, said method comprising the steps of:receiving and temporarily storing each incoming packet;testing the number of tokens available in the token pool against first and second thresholds having values greater than zero;where the test reveals the number of available tokens is less than the first threshold and packet acknowledgments are being provided to the packet source, discontinuing such acknowledgments;where the number of available tokens is greater than a second threshold and acknowledgments are not being provided to the packet source, resuming acknowledgments of received packets; andtransmitting the stored packet and decrementing the token pool.