Method and system for shortening the length of time gaps between data units in a data switching network

j x j j jx x A method for shortening the length of time gaps between data units in a data switching network; the method comprising: arranging a group of K data units received consecutively at an input of a first device in K time units, where K is a positive integer; sending the arranged K data units to the inputs of M devices, where M is a positive integer; transferring a group of Hdata units of the arranged K data units by a device j of the M devices from its inputs to its outputs within a time unit Tin the K unit time period, where His a positive integer and the sum of Hfor j=1, . . . M is equal to K, where HK; arranging the data units sent to the devices of the M devices transferring at time unit Tsuch that no two inputs of the devices of the M devices transferring at time unit Treceive the same data unit at any moment; and repeatedly combining and arranging the K data units from the outputs of the M devices by a second device such that the K data units appear at the output of the second device consecutively.