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Ring network protection method and device

A ring protection and ring network technology, applied in the field of communication, can solve the problems of occupying additional transmission resources, long service transmission paths, and increased service transmission delay, and achieve the goal of reducing resource occupation, transmission delay, and switching time Effect

Inactive Publication Date: 2016-04-13
NO 722 RES INST OF CHINA SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the traditional Wrapping ring network protection mechanism, the service transmission path is long, resulting in an increase in service transmission delay and occupying additional transmission resources. At the same time, due to the fault, the two adjacent nodes need to complete the switchover, which increases the switching of the ring network protection. Complete time

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  • Ring network protection method and device

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Embodiment Construction

[0042] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0043] figure 1 It is a flowchart of a ring network protection method provided by an embodiment of the present invention. The method can be executed by a node in the PTN ring network, or a module or device on the node, see figure 1 , The method includes:

[0044] Step 101: The ring network node detects whether the ring working channel has a fault.

[0045] Among them, ring working channel failures mainly include node failures and inter-node link failures.

[0046] Step 102: When it is detected that there is a fault in the ring working channel, and the ring network node is the faulty upstream node in the ring working channel, the ring network node switches the service from the failed ring working channel to the ring protection channel for transmissi...

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Abstract

The invention discloses a ring network protection method, and belongs to the field of communication. The method comprises the steps that: a ring network node detects whether a ring working channel has a fault; when detecting that the ring working channel has a fault, and when the ring network node is an upstream node of the fault in the ring working channel, the ring network node switches a service from the faulty ring working channel to a ring protection channel for transmission, and the directions of the ring working channel and the ring protection channel are opposite, so that a service message can be directly transmitted to a lower ring node by the ring protection channel, a very long transmission path is not generated just like in the prior art, the transmission delay of the service message is shortened, the resource occupancy is reduced, and meanwhile, the abovementioned method can be used for shortening the switching time of ring network protection.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a ring network protection method and device. Background technique [0002] PTN (Packet Transport Network) ring network protection based on MPLS-TP (MultiProtocol Label Switching-Transport Profile, multi-protocol label switching transmission standard) technology is mainly divided into Wrapping and Steering ring network protection. [0003] Among them, when the traditional Wrapping ring network protection mechanism detects a failure, the upstream node of the failure (node ​​failure or link failure) (the adjacent upstream node at the failure location) switches the carried service from the working channel to the reverse protection channel, and the failure When the downstream node (the neighboring downstream node at the fault location) receives the bearer service transmitted by the faulty upstream node through the reverse protection channel, it switches the reverse protection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437H04L12/711H04L45/247
CPCH04L12/437H04L45/22
Inventor 郑波张亮叶耀文范颖王玲杨博林闵清潘鹏郝田周婷祁小龙陈昊
Owner NO 722 RES INST OF CHINA SHIPBUILDING IND
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