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Realization method of looped network protection, and looped network protection system

An implementation method and a technology for protecting the system, applied in the field of communication, can solve problems such as business packet loss, user experience degradation, degradation, etc., to achieve the effect of reducing packet loss rate and improving user experience

Active Publication Date: 2019-04-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the existing network, SF (Signal Fail, signal failure) and SD (Signal Degradation, signal degradation) are the most common reasons for triggering ring network or shared ring switching. Currently, the relevant protocol G.8132 of the ring network protection method stipulates the priority of SF It is greater than SD. The specific state machine does not specify how to deal with SF and SD. If it is handled according to the rule that the priority of SF is greater than SD, when SF and SD appear on the same ring at the same time, the final switching path may pass through the SD link. , eventually leading to a large amount of packet loss for services. For those services that require high transmission quality, this is a serious error and will cause adverse consequences such as user experience degradation. Therefore, there is a lack of a mechanism in the prior art. When SF and SD exist at the same time, make the business go on the normal path of the link, and try to ensure that the business does not lose packets

Method used

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  • Realization method of looped network protection, and looped network protection system
  • Realization method of looped network protection, and looped network protection system
  • Realization method of looped network protection, and looped network protection system

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Embodiment 1

[0034] The implementation method of ring network protection in this embodiment, in the case of different types of faults that can cause packet loss in the ring network at the same time, can respond to these faults that cause packet loss, so that the final path of the business There are no above-mentioned faults that lead to packet loss, which improves path reliability, improves service transmission quality, and improves user experience.

[0035] Combine below figure 1 , the implementation method of the ring network protection in this embodiment will be described. It can be understood that the method of the present invention is applicable to various types of ring networks, including but not limited to wrapping ring networks and steering ring networks.

[0036] The implementation method of the ring network protection in this embodiment includes:

[0037] S101. Detect whether there is one of multiple preset fault states in the link segment between each node on the ring network;...

Embodiment 2

[0079] see Figure 18 , this embodiment shows a ring network protection system, including:

[0080] The detection module 181 is used to detect whether there is one of multiple preset fault states in the link segment between each node on the ring network; wherein, the preset fault state indicates that the packet loss or bit error rate generated by the link segment meets the predetermined set conditions;

[0081] A protection switching processing module 182, configured to perform protection switching processing on all services on link segments with preset fault states during service transmission if two or more different types of preset fault states exist on the ring network at the same time ; Wherein, after the protection switching, there is no preset fault state on the service transmission path.

[0082] In this embodiment, the bit error rate and packet loss can be used as indicators to measure the path quality. When it is detected that the packet loss rate or bit error rate ...

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Abstract

The invention discloses a realization method of looped network protection, and a looped network protection system. The method comprises the following steps: detecting whether one of multiple preset fault states is existent at a link section among various nodes on the looped network, thereby immediately discovering whether a link on the looped network is in fault; when the two or more than two different types of preset fault states are existent in the looped network at the same time, performing protection switching processing on the service on the link section with the preset fault state, wherein the link section with the preset fault state is inexistent on the path for service transmission after the protection switching, and the quality of the service transmission quality is relatively high. The service packet loss occurrence rate is effectively controlled, the packet loss rate presenting to the user by the service is reduced, the user experience is improved, and a demand of the service with strict requirement on the packet loss rate is satisfied.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for realizing ring network protection and a ring network protection system. Background technique [0002] At present, in the G.8132 protocol, depending on the switching mode, it includes at least the steering ring network and the wrapping ring network. If the ring network uses the wrapping protection method, when a link or a node fails, the adjacent node When protection switching occurs, the service flow is detoured back to the reverse protection path. This method can ensure a fast switching of 50 ms, and is a commonly used ring network protection method. [0003] In order to effectively reduce switching actions, a shared ring is derived from the ring network protection method. The shared ring protection method includes a shared ring ring network tunnel and a service tunnel. The service tunnel is carried on the ring network tunnel. When a link on the ring network o...

Claims

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Application Information

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IPC IPC(8): H04L12/437H04L12/26
CPCH04L12/437H04L43/0829
Inventor 翟宇
Owner ZTE CORP