Performance simulation of congestion control mechanisms for intelligent networks

Some congestion control aspects of intelligent networks (IN) are being investigated by simulation of simple network models. In particular the overload caused by mass-calling events driven by mass-media programs is studied under the activation of two control mechanisms. ACG (Automatic Call Gapping) prevents the IN service node from being overloaded by traffic directed towards it. FDOC (Focused Destination Overload Control) protects the public switched telephone network from calls all directed to specific subscriber codes.<<ETX>>