The application relates to a system comprising at least two processing nodes (1), wherein the nodes (1) comprise an execution environment (2) and a processing component (3), wherein each execution environment (2) includes an establisher configured to establish a communication channel (4) between an outgoing port of the processing component (3) and an inbound port of a different processing component (3), and wherein the system is configured to determine whether the communication channel (4) traverses a boundary of a node (1), and to determine whether an encoding/decoding of data to be transferred through the communication channel (4) is required.