Patent ID: 7716560
Filing Date: 2010-05-11
Classification: H04J,H04L

Abstract:
1. A network protection switching system, comprising: a transmitter coupled to bridge a client signal onto a multi-path network and the client signal being encoded using forward error correction (“FEC”); a plurality of signal paths, within the multi-path network, communicatively connecting the transmitter to a receiver that receives and decodes the FEC encoded signal; a first set of intermediary nodes, coupled within a first path in the plurality of signal paths, that define a first set of concatenated spans in the first path and identify a first set of FEC errors associated with first path; a second set of intermediary nodes, coupled within a second path in the plurality of signal paths, that define a second set of concatenated spans in the second path and identify a second set of FEC errors associated with the second path; and a selector, communicatively coupled to the first and second intermediary nodes, that receives information related to the first and second sets of FEC errors and defines a preferred path within the plurality of signal paths.