Method for recognizing overload situations in subscriber line modules of a communication system

A method for recognizing overload situations of subscriber line modules, the subscriber line modules having communication ports connected to communication terminal equipment and connected to a central controller of a communication system, each of the subscriber line modules having a microprocessor system for processing switching and operating processes organized in tasks, comprising the steps of:

• forming, in a respective subscriber line module of the subscriber line modules, signaling messages to be communicated to connected communication terminal equipment units and sending the signaling messages via signaling channels individually associated to a communication port of the respective subscriber line module;
• temporarily allocating memory elements from a memory element pool in the respective subscriber line module to processes for inter-process communication and for resource management;
• measuring in the respective subscriber line module a workload of the microprocessor system, a workload of all signaling channels, and a workload of the memory element pool;
• and
• respectively comparing in the respective subscriber line module the measured workloads to predetermined workload limits and recognizing an overload of the respective subscriber line module dependent on results of the comparisons.