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

摘要

the present invention is the whole framing procedure (Generic Framing Procedure, GFP) encapsulation mode in the frame check sequence (Frame Check discloses a method of recognizing the Sequence, FCS). The method of the present invention, removing the core header field of the GFP frame from the received GFP data stream, is associated with the removed data stream, the head of the frame (head), the end of the frame (end), and the frame generating signals representing the limits determined whether each of the effective data; Extracting the PFI information from GFP frame according to the threshold determination signal, and remove the payload header of the GFP frame; And the extracted GFP frame according to the PFI information, including the determination whether the FCS field, and determines if it contains the start position of the FCS field, and removing the FCS field, or else directly outputs the data stream GFP and a step of completing the current process. The invention also discloses a device for recognizing the FCS in the GFP encapsulation mode. The apparatus and method of the present invention can eliminate the error code, the number of applications can be used flexibly with high adaptability.