Prescribed calculation that works parallel an iterative for the avoidance of data packets

摘要

A packet switching device has several input- and output-ports and at least one switching unit (switch card) (3-5) consisting of a coupling matrix and a division/distribution unit (9) for controlling the coupling matrix (8), in which the division/distribution unit is provided for generating a state-matrix (11) whose rows each correspond to an input port, and whose columns each correspond to an output port. The state-matrix contains elements which each represent a weighting of a linkage between an input port and an output port. The division/distribution unit (9) is provided with a parallel working calculation instruction on the basis of one or more groups of columns of the state-matrix for building a first decision matrix, which consists of several accepted linkages. Independent claims are for given for the following: (1) A switching unit for a packet switching device, (2) A division or distribution unit for controlling the coupling matrix, (3) A switching method for a packet switching device.