METHOD OF CONTROLLING THE TRAFFIC IN A COMMUNICATIONS NETWORK

摘要

A method of controlling the traffic in a network, which includes at least one local exchange connected by one or more routes to one or more parent trunk exchanges, each parent trunk exchange being one of a plurality of trunk exchanges interconnected by trunk routes. The method consists in that controls are applied: (a) whenever the Percentage Overflow (OFL) for one or more traffic routes from a parent exchange to the local exchange has stayed above a first threshold for the duration of a measurement period; and (b) whenever the All Circuits Engaged (ACE) parameter for one or more traffic routes from a far-end trunk exchange to a parent exchange of the local exchange has increased from above a second threshold to above a third threshold greater than the second threshold during a measurement period. The control which is applied when condition (a) is met and the said OFL has stayed above the first threshold as required is route gapping to affect the relevant traffic route or routes. The control which is applied when condition (b) is met and the ACE parameter for a traffic route has remained above the third threshold as required is call gapping for the number range of the local exchange and the control is applied at the relevant far end trunk exchange or exchanges.