This feature provides the functionality to bypass error indication to the PCS layer when Forward Error Correction (FEC) is in operation for an interface. Depending on the PHY implementation, there can be one or multiple FEC decoders when an error correction encoding is in use. Upon receiving a codeword, FEC decoders will attempt to test and see if the codeword can be decoded. If there were errors in the codeword

The FEC (Forward Error Correction) traffic analyzer is designed to estimate the performance of the FEC layer, identify error statistics, and the source of correlated errors on physical interfaces.