RECOGNITION APPARATUS OF FRAME CHECK SEQUENCE IN GENERIC FRAMING PROCEDURE PACKAGING PATTERN AND RELATED METHOD

摘要

The invention discloses a recognition method of frame check sequence in generic framing procedure-packaging pattern. The method includes: stripping Core Header from the GFP frame of the received GFP data stream; according to the stripped GFP data stream, generating delimit signals indicating whether the data about the Core Header, Core Ender or the frame data is the valid information, to delimit the GFP frame; according to the delimiting signal, extracting the PFI information from GFP frame, and stripping the GFP frame Payload Header; according to the PFI information, judging whether the GFP frame includes the FCS field, if it does, determing the FCS field start position and stripping the FCS field, or else ending the flow. The invention also discloses a recognition apparatus of frame check sequence in generic framing procedure packaging Pattern. The method and the recognition apparatus in the invention could completely reduce bit error rate, with high adaptability, and make the apparatus could flexible apply in many situations.