A protection switching method and a protection switching device

A protection switching and switching point technology, applied in the field of communication, can solve the problems of affecting the number of protection groups, time-consuming, etc., and achieve the effect of reducing work

Active Publication Date: 2018-12-25
RAISECOM TECH
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  • Summary
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  • Claims
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Problems solved by technology

[0004] The above three linear protection switching methods take a long time to complete the switching operation, which directly affects the number of protection groups whose simultaneous switching meets 50ms
Through experimental tests, it is found that the protection switching method of deleting one forwarding path and creating another forwarding path can only support several pairs of protection group switching within 50ms, the protection switching method of modifying the forwarding path to change it into another forwarding path, and creating a backup in advance Path, the protection switching method of modifying the index between entries can only support simultaneous switching of 32 pairs of protection groups within 50ms

Method used

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  • A protection switching method and a protection switching device
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  • A protection switching method and a protection switching device

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example 1

[0070] Example 1: When step S101 in the above method provided by the embodiment of the present invention is executed to obtain the first control information corresponding to the switching point between the active path and the backup path before the protected service is forwarded, as follows: Figure 4 As shown, specifically, the following steps may be included:

[0071] S401. According to the main path identifier and backup path identifier corresponding to the switching point between the primary path and the backup path before the protected service is forwarded, and the pre-established primary path identifier, backup path identifier and protection path identifier at the switching point Correspondence between group identifiers, obtaining the protection group identifier corresponding to the switching point;

[0072]S402. Acquire the first control information corresponding to the switching point according to the acquired protection group identifier corresponding to the switching ...

example 2

[0082] Example 2: When step S101 in the above method provided by the embodiment of the present invention is executed to obtain the first control information corresponding to the switching point between the active path and the backup path before the protected service is forwarded, as follows: Figure 5 As shown, specifically, the following steps may be included:

[0083] S501. According to the main path identifier and backup path identifier corresponding to the switching point between the primary path and the backup path before the protected service is forwarded, and the pre-established primary path identifier, backup path identifier and protection path identifier at the switching point Correspondence between group identifiers, obtaining the protection group identifier corresponding to the switching point;

[0084] S502. Acquire the first sub-control information corresponding to the switching point according to the acquired protection group identifier corresponding to the switc...

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Abstract

The invention discloses a protection switching method and a protection switching device. The method includes: obtaining first control information corresponding to a switching point between a main path and a standby path before the protected service is forwarded; according to the obtained switching The first control information corresponding to the point controls the protected service to select the main path or the backup path to send at the switching point; in this way, when the main path or the backup path fails and path switching is required, only the first control information needs to be modified The protection switching operation can be completed, so that the work in the protection switching operation can be reduced, and the protection switching operation can be guaranteed to be simple and efficient.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a protection switching method and a protection switching device. Background technique [0002] According to the network to be protected, it can be divided into linear topology network and ring topology network. The protection mechanism of the linear topology network is N:1 or N+1, and the protection mechanism of the ring topology network is ring network protection. Network protection refers to pre-designating a backup path for the primary path in the network, and switching from the primary path to the backup path when the primary path fails, so as to realize rapid recovery of the network. [0003] The existing linear protection switching methods usually have the following three methods: delete one forwarding path, and then create another forwarding path; modify the forwarding path so that it becomes another forwarding path; create a backup path in advance, and modi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/711H04L45/247
CPCH04L45/22
Inventor 邢家茂王海龙乔强国郭瑞
Owner RAISECOM TECH
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