Method and arrangement for process based message handling in a communication system

The present invention relates to a message distribution device and a communication system comprising such message distribution device, and to a method for managing messages. The apparatus comprises a central distributing unit for routing of messages, as well as means for forming a variable, local data structure for arranging data on nodes capable of or permitted to send messages, a database for providing the data structure with information regarding originating nodes as well as updating means for updating the data structure. In addition, means for identifying the origin of the messages are provided and it is checked whether for an incoming message from a given originating node, a process is executed for any message originating from the same node, in which case the message is routed to said process. If not, a new process will be initiated.