Resource allocation method and device for protecting failure risk perception in optical network

By introducing a protection failure risk perception mechanism in the optical network, optimizing service routing and bandwidth resource allocation, the problems of network failure management and flexible bandwidth resource allocation in the optical network are solved, and higher resource utilization and service protection success rate are achieved.

CN119697529APending Publication Date: 2025-03-25STATE GRID XINJIANG ELECTRIC POWER CORP +1
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Patent Information

Application Number
CN202411780705.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

In optical networks, it is difficult for the prior art to effectively manage network failures, especially in terms of flexible allocation of bandwidth resources and the inclusion of risk of protection failure, resulting in limitations in network resource utilization efficiency and service survival.

Method used

A resource allocation method for protection failure risk perception in optical networks is proposed. By obtaining business requests, traversing the network topology, building a virtual topology, using the KSP algorithm to calculate the shortest path, calculating the protection failure risk value of the path, and selecting the minimum risk path as the business work path and the sub-small risk path as the business protection path to allocate bandwidth resources.

Benefits of technology

This method optimizes service routing and bandwidth resource allocation by introducing a protection failure risk perception mechanism, reduces the overall protection failure risk, improves resource utilization and business protection success rate, and ensures the service and network resource load balancing of high-priority services.

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Abstract

The invention discloses a resource allocation method and device for protecting failure risk perception in an optical network, which comprehensively considers a service priority and a path available bandwidth resource proportion so as to ensure a service with a higher service priority and realize network resource load balancing. Under the condition of high service load, because each service is only allocated with a part of protection resources, the residual available bandwidth of a link may not be enough to support the bandwidth adjustment of all affected services. Bandwidth resources can be reasonably balanced by performing routing and resource allocation on the service according to the protection failure risk value, so that the overall protection failure risk probability of the network is reduced. Meanwhile, according to the method, the PFR value of each link is dynamically monitored, and when the PFR value exceeds a threshold value, part of services are rerouted so that the PFR values of all links can float within a reasonable range. Occupation of service bandwidth resources is effectively reduced, network resources are reasonably balanced, the link protection failure risk value is dynamically monitored and reasonably adjusted, and the purposes of improving the spectrum resource utilization rate and the service protection success rate are finally achieved.
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