| 摘要 |
<p>Provided is a scanning method, terminal and system. The method includes: during the process wherein a framer carries out general forward error correction (GFEC) decoding on an OTU4 frame signal, if the correction error code information is not obtained after the frame is located successfully, sending to the line side optical module the information about the quantity of uncorrectable blocks (UCB) generated during the process of GFEC decoding; the line side optical module performing delay line interference adjustment according to the received quantity information about the UCBs; thereby a scan of the GFEC blind zone in a 100G system is achieved. By way of the present invention, the effective data required by delay line interference (DLI) adjustment can be provided to the line side optical module when the system error code rate is in the GFEC blind zone.</p> |
