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Method and device for calculating preset recovery route

A routing and preset technology, applied in the field of communication, can solve the problem of low recovery success of multiple services of the same attribute at the same time, and achieve the effect of improving the recovery success rate and service quality.

Active Publication Date: 2012-11-14
南通东湖国际旅行社有限公司
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method and device for calculating preset recovery routes, which solves the problem of low success in simultaneous recovery of multiple services with the same attribute in the existing preset recovery routing technology

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  • Method and device for calculating preset recovery route
  • Method and device for calculating preset recovery route

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Embodiment Construction

[0034] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] refer to figure 1 , propose an embodiment of the method for calculating the preset recovery route of the present invention, including:

[0036] Step S10, obtaining the preset rate of the links in the entire network; the preset rate is the ratio of the bandwidth of each link that can be used for preset recovery routes to the total bandwidth of the link;

[0037] First obtain the preset rate of each link of each network element in the network; since the preset rate represents the proportion of the bandwidth of the corresponding link that can be used for preset recovery routes to the total bandwidth of the link, the preset The rate can show whether the link can be the preset recovery route and how many services can be the preset recovery route at the same time.

[0038] Step S11, when the default preset recovery...

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Abstract

The invention discloses a method for calculating a preset recovery route, comprising the following steps of: acquiring a preset rate of links of the whole network, wherein the preset rate is a ratio of bandwidth of each link used for a preset recover route to the bandwidth of the link; and calculating the preset recovery route of a service according to the preset rate when a default preset recovery route of the service is invalid. The invention also provides a corresponding device. By adopting the method and device for calculating the preset recovery route, disclosed by the invention, the preset rate is introduced, thus a control plane calculates the preset recovery route for the service according to the preset rate, recovery success rate can be greatly improved when multiple services have a fault at the same time, the problem that multiple services with the same attribute can not be successfully recovered at the same time in the existing preset recovery route technique is solved, and service quality of the service is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for calculating a preset restoration route. Background technique [0002] In order to ensure the service quality, the management plane in the automatic switching optical network can pre-set the service recovery route, that is, the default preset recovery route. Once the service connection fails and needs to be restored, the default preset recovery route will be used first. If the default preset recovery route fails, the control plane will create another available preset recovery route for this service, that is, the preset recovery route calculated by the control plane. [0003] The preset recovery route calculated by the control plane improves the efficiency of service recovery and ensures the quality of service, but this technology has defects in the scenario where multiple services fail at the same time, for example: for multiple same-source addresses, same...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L45/28
Inventor 刘华
Owner 南通东湖国际旅行社有限公司
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