Ring network fault recovery method and device

Abstract

The invention is applicable to the technical field of communication, and provides a failure recovery method and device of a ring network. The failure recovery method is applied in devices forming the ring network. The method comprises following steps of sending first detection messages to other devices in the ring network by ring ports at two sides when a local device is in an intermediate state; receiving the first detection messages sent by the other devices for master station election; setting the current state from the intermediate state to a slave station if the local device receives negative response messages sent by the other devices in the master station election process; setting the current state from the intermediate state to a master station if the local device does not receive the negative response messages sent by the other devices, thus managing the ring network. Through adoption of the method and the device, when a failure appears in the ring network, the new master station can be elected again, the network failure is recovered by establishing a new network topology, and the problem that in the prior art, the network failure cannot be processed and recovered when the failure appears in the master station.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a ring network failure recovery method and device. Background technique [0002] The existing ring network composed of Ethernet switches mainly adopts a topology-based network fault recovery protocol, and improves network availability through network redundancy. When a single fault occurs in a ring network switch or a link inside the switch, the network function can be restored within a certain period of time. However, the existing network fault detection usually uses a master station to send a fault detection message to detect and handle the fault of the slave station; when the master station itself fails, it often cannot handle and realize the recovery of the network fault. Contents of the invention [0003] In view of this, the embodiments of the present invention provide a ring network failure recovery method and device to solve the problem that the exist...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a ring network fault recovery method and device to solve the problem that the existing technology cannot handle and realize network fault recovery when the master station fails

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