Patent ID: 6831927
Filing Date: 2004-12-14
Classification: H04Q

Abstract:
A method for routing signals in a switch of a telecommunications network, comprising the steps of:(a) receiving an incoming signal at the switch; (b) slicing data in the received incoming signal into a plurality of sub-signals, wherein the plurality of sub-signals are processed in parallel by, for each sub-signal: (i) dividing the sub-signal into one or more subsets of data; (ii) applying a checksum function to each subset of data to generate a checkbit for the subset; (iii) adding the checkbit for each subset to the sub-signal to generate an augmented sub-signal; (iv) by routing at least two copies of the augmented sub-signal in parallel through redundant portions of a distributed switch fabric of the switch to generate at least two routed sub-signals for the sub-signal, wherein the distributed switch fabric has multiple switch components adapted to route different portions of each of a plurality of incoming signals in parallel; (v) performing a checksum analysis on at least one of the routed sub-signals; and (vi) selecting one of the routed sub-signals in accordance with the checksum analysis; and (c) combining data from the selected routed sub-signals corresponding to the plurality of sub-signals to generate an outgoing signal.