Multi-channel fiber self-healing method

Abstract

The invention provides a multi-channel fiber self-healing method which is applied to a four-channel dual-fiber self-healing ring. The four-channel dual-fiber self-healing ring is connected to form a closed loop through a master network element node and n slave network element nodes. The master network element node is in communication with a communication manager. All the salve network element nodes are connected with corresponding slave communication devices. The master network element node and the n slave network element nodes are self-healing optical transceivers. The self-healing optical transceivers comprise TX1 optical sending ports, RX1 optical receiving ports, TX2 optical sending ports, RX2 optical receiving ports, port state detection modules, control chips and cut-down switches. The master network element network node or the slave network element nodes process communication data, and in combination with link detection judgment, a state transition model, conflict avoidance and a ring network data filtering mechanism, four types of self-healing loops are obtained. Compared with a traditional method, channel recovery efficiency is greatly enhanced, performance is more reliable and stable, the adapting capacity is high, and application prospects are broad.

Description

technical field [0001] The invention belongs to the technical field of optical transceivers, and in particular relates to a multi-channel optical fiber self-healing method. Background technique [0002] In order to improve the security and reliability of network transmission, the network needs to have a high survivability, thus the concept of self-healing network was born. The self-healing network means that without human intervention, the network can automatically restore the services it carries from failures in a very short period of time, so that users do not feel that there has been a problem with the network. The basic principle is: through line protection switching, when the main channel of the network is interrupted or other unexpected failures occur, the communication line system can automatically switch to the backup channel in a short period of time, thereby automatically restoring business and ensuring normal communication. Therefore, it has been widely used in h...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the self-healing network only has two double-loop self-healing modes, the inner ring and the outer ring, and the self-healing ring has only two available channels, which has limited survivability in extreme network conditions.

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