A parallel-processing computer system is provided for parallel processing of data packets conveyed in a communication network. The system comprises: a memory; a plurality of processing elements; and a program stored at the memory for execution by the plurality of processing elements. The at least one program comprises instructions for: receiving one or more data packets comprising operational instructions from an application; establishing a pipeline element for carrying out a service process, which comprises a plurality of sub-pipelines, each associated with a respective task required for carrying out the service process and wherein each of the plurality of processing elements is operative for carrying out tasks associated with a respective sub-pipeline belonging to the plurality of sub-pipelines; and executing simultaneously by the plurality of processing elements, tasks associated with the plurality of sub-pipelines, wherein the plurality of processing elements is implementing a parallel processing of each data packet.