AN ARRANGEMENT AND A METHOD RELATING TO FLOW OF PACKETS IN COMMUNICATION SYSTEMS

摘要

The present invention relates to an arrangement comprising means for handling switching of data packets or flows of data packets in a communication system supporting communication of packet data to functional units or processing arrangements for performing operations on the data packets. It comprises core processing means (10) with classifying means (13) for classifying packets/packet flows and defining the processing flow sequences applicable for the packets/packet flows, distributing means (12;19;22) for distributing or switching the packets/packet flows to the appropriate functional units or processing arrangements according to the applicable flow sequence, indication providing means for indicating the current position of the respective packets/packet flows in the respective applicable processing flow sequence and means (11) for detecting or retrieving packet flow sequence information such that re-classification of already classified packets can be avoided.