ABSTRACT
SUMMARY A traffic engineering method has been developed to meet the requirements for efficient bandwidth dimensioning and for a practical and consolidated network design method. It characterizes the offered-traffic burstiness on a transit link by using time-series measurement of the aggregate traffic. It estimates future traffic characteristics based on the average traffic volume at that time which is easily derived from trend analysis, i.e., an x% increase in bandwidth each year and gives the required link capacity. Simulation showed that the parameters estimated using this method fit the actual behavior of a network well. This method enables an appropriate bandwidth to be allocated to a transit link without having to estimate the specific traffic characteristics for each connection over the link. Once the burstiness parameter and its trend have been identified based on this method, it is possible to use a simple traffic measurement method to detect changes in network traffic and feed them back to the engineering procedure.
