Methods and systems as well as the frame synchronization method and system for that data stream to detect a frame boundary of the received data stream in Forward Error Correction layer in the Ethernet

摘要

A method and system for detecting the frame boundary of the received data stream with forward error correction layer of the present invention relates in Ethernet. [SOLUTION] and to intercept the data having a length of one frame from the data stream, the method, the FEC check for the data with the length of one frame from the start position of the data having a length of one frame and to validate, when the FEC check for the data with the length of one frame is not correct, the bit following the end position of the data having a length of one frame, the next data frame to be intercepted In been to assume the data stream position jumping sbn bits as the start position of, sbn is larger than the pipeline delay of the hardware circuit in FEC layer in the Ethernet in, under over the length of the frame and that it is some integer, and that it returns to the intercepting step, if the FEC check for the data with the length of one frame is correct, the start position of the data having a length of one frame is frame boundary position of the data stream and a result of it being determined at. The present invention may be without additional hardware overhead, and increase the speed of frame synchronization and the speed of frame boundary detection. [Selection Figure Figure 5