Patent ID: 6226266
Filing Date: 2001-05-01
Classification: H04L,H04Q

Abstract:
A network arrangement in a communication network for packet switched communication for estimating an end to end delay of a path comprising N nodes from an origin node to a destination node, the communication network node having at least one input and at least one output with a queuing delay associated with passage of a packet from one input to one output, the network arrangement comprising:(a) means for computing for each node (i) of N nodes along said path an estimated queuing delay Tqp(i) where Tqp(i) is a delay value for which a probability distribution to observe in node(i), a delay greater than said delay value is equal to probability P(b) means for combining for each node (i) of the path said estimated queuing delay Tqp(i) with the propagation time (P(i)) of the link that connects said each node (i) to the next node (i+1) of said path to provide a second delay value associated with said each node (i);(c) means for combining all said second delay values to provide an estimation of the end-to-end delay (Tquant) of said path.