NEW PERFORMANCE-MEASURE AND OVERLOAD CONTROL FOR SWITCHING SYSTEMS WITH FOCUSED TRAFFIC

Narrow-band ISDN services may experience nonstationary traffic conditi ons. Therefore, switch design should take account of these conditions. We propose new performance measures for switching systems and describ e a traffic model, which is a mixture of stationary Poissonian traffic and momentarily focused traffic. On the basis of this model, performa nce measures are determined so as to satisfy grade of service requirem ents that are in effect during some short interval after the momentari ly focused traffic enters the system. We also propose an overload cont rol scheme that uses these new performance measures. Finally, we show practical and numerical examples for the performance measures and over load control scheme.