Method and device for detecting and processing link failure in RRPP (Rapid Ring Protect Protocol) ring network

Abstract

The invention provides a method for detecting and processing a link failure in a RRPP (Rapid Ring Protect Protocol) ring network. The method comprises the following steps: if a slave port of a main node does not receive a ring-circuit state detection message within timing time of an invalidation timer, the main node transmits a single-pass ring circuit detection message through the slave port and starts the invalidation timer of a main port; if the main port of the main node receives the single-pass ring circuit detection message within the timing time of the invalidation timer of the main port, the main node maintains the block state of the slave port and reports single-pass ring circuit warning information; and if the main port of the main node does not receive the single-pass ring circuit detection message, the main node removes the block state of the slave port and transmits a data message through the slave port. The embodiment of the invention also provides the main node in the RRPP ring network. According to the method provided by the invention, the slave port is continuously blocked when the link failure is discovered to be a unidirectional failure, so that the storm of the data message, generated in a reverse ring circuit, is avoided, the warning information is timely reported and the stability of a ring circuit service is increased.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of network communication, and in particular to a link failure detection and processing method and device in a RRPP (Rapid Ring Protect Protocol, Rapid Ring Protection Protocol) ring network. Background technique [0002] In the RRPP ring network, the master node periodically sends a ring status detection message through its master port. If the slave port of the master node receives the ring status detection message, it means that the RRPP ring network is complete, and the master node blocks the above slave port. To prevent data loops. Data packets in the RRPP ring network are forwarded on the link formed by the master port of the master node and the transit node. [0003] When the above link fails, the slave port of the master node does not receive the loop status detection message within the time limit of the failure timer, the master node will open the slave port, and enable the The...

AI Technical Summary

Problems solved by technology

[0005] When the link fault is a one-way fault, opening the slave port of the master node will generate a reverse loop, and the data packets in the loop will generate a storm, resulting in abnormal loop business

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