Method for realizing shared guard ring misconnecting susppression for multiplexing section and system thereof

Abstract

In multiplexing segment shared guard ring, after one or multiple nodes complete operation configuration, multiplexing segment inhibition tables of whole ring is recalculated in concentration once through SDH network management system, and multiplexing segment inhibition table for each node through network management system and interface between communication devices is sent to relevant node. Thus, according to new multiplexing segment inhibition table, each node realizes mistake connection inhibition of multiplexing segment shared guard ring. Advantages are: simple, high efficiency, rapid calculation, and supporting devices made from different manufacturers. The invention guarantees safe and reliable calculating and refurbishing procedure.

Description

technical field [0001] The invention relates to the technical field of network communication, and in particular, to a method and a system for realizing the suppression of multiplex section shared protection loop staggered connections. Background technique [0002] In communication networks, especially SDH (Synchronous Digital Hierarchy) optical transport networks, network survivability is an important indicator to measure the quality of the network. Usually, for a communication network with good survivability, in the event of a device or link failure, the network can find an alternative route in a very short period of time, and automatically recover the carried services from the failure, so that users cannot feel it. The failure of the network has occurred, that is, it does not affect the normal business development of the user. [0003] Currently, in the SDH optical transport network, the most commonly used ways to improve network survivability include channel protection a...

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Problems solved by technology

[0013] However, the above method also has insurmountable shortcomings, including: because the multiplex section suppression protocol is not standard, each equipment manufacturer implements it differently. The suppression protocol cannot be used, so it cannot support the mixing of equipment from different manufacturers to form a multiplex section shared protection ring

Moreover, since the above method is a distributed algorithm, it is impossible to obtain the suppression table of all nodes in the multiplex section at one time, which leads to the unreliable realization of the misconnection suppression of the shared protection ring of the multiplex section.

At the same time, the multiplex section suppression protocol itself is insecure and has loopholes. Therefore, if it occurs in the multiplex section shared protection ring, a large number of services are configured in a short period of time, or there are many code errors in the multiplex section shared protection ring, or the multiplex section One or more isolated nodes have appeared in the shared protection ring, and the multiplex section suppression protocol itself is not safe, and even cannot calculate and refresh the multiplex section suppression table of the entire ring in time

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