Abstract: A distributor with controlled switching elements (CSE) which simplifies hardware construction by distributing the function of a running adder into a reverse banyan network. The distributor comprises a CSE-based network using switching stages, each switching stage having control switching elements. A control signal input stage switches two packet input signal switching channels, each stage receiving each control signal from an output stage having switching elements. An active packet counter counts and generates an output signal which represents the number of active packets inputted to the CSE network. A tail-of-queue register is used for storing output vectors.