Dynamic bandwidth allocation for B-ISDN based on end-to-end delay estimates

A novel dynamic bandwidth allocation procedure that combines the desirable attributes of bandwidth advertising and techniques based on only responding to source queue threshold violations is described. The proposed methodology uses end-to-end delay estimates to infer the available unused bandwidth along the virtual path connecting the source to the destination. Bursts of traffic exceeding the negotiated rate from the source are violation tagged and allowed to enter the network if unused bandwidth increases the confidence that the tagged cells will be delivered. Negotiated bandwidth request and release procedures are based on estimates of the traffic flow. The performance results for this scheme are presented