Parallel routing optimization algorithm under elastic optical network

An elastic optical network and optimization algorithm technology, applied in the field of elastic optical network, can solve the problem of long computing time, and achieve the effect of accelerating computing, reducing the occupation of spectrum resources, and fast routing optimization.

Inactive Publication Date: 2019-08-06
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

[0007] The invention provides a parallel routing optimization algorithm under the elastic optical network, which solves the problem of long calculation time of the existing serial routing optimization algorithm under the elastic optical network, fully utilizes the powerful parallel computing capability of the GPU, and improves the routing optimization Calculation speed of the algorithm

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  • Parallel routing optimization algorithm under elastic optical network
  • Parallel routing optimization algorithm under elastic optical network
  • Parallel routing optimization algorithm under elastic optical network

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Embodiment Construction

[0023] The invention provides a parallel routing optimization algorithm under the elastic optical network, which solves the problem of long calculation time of the existing serial routing optimization algorithm, fully utilizes the powerful parallel computing capability of the GPU, and improves the calculation speed of the routing optimization algorithm.

[0024] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0025] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented i...

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Abstract

The invention discloses a parallel routing optimization algorithm under an elastic optical network, and the algorithm comprises the steps: step 1, after a batch of services arrive at the network, using a GPU to solve a shortest path on an available hierarchical graph of each service as an alternative path; step 2, after calculating an alternative path, selecting a route for the service by using aroute selection algorithm; step 3, judging whether the services can be added into the network, if so, ending the algorithm, and if not, performing the step 4; step 4, judging whether the services which are not added are blocked services or not, if yes, ending an algorithm, outputting a path selected for the services, if not, re-calculating a route for the services which are not added, and returning to the step 1. According to the method, the powerful parallel computing capability of the GPU is fully utilized, and the computing speed of the routing optimization algorithm is increased.

Description

technical field [0001] The present invention relates to the technical field of elastic optical network, in particular to a parallel routing optimization algorithm under elastic optical network. Background technique [0002] In order to deal with the low agility and spectrum waste of WDM networks, in recent years, the architecture of Elastic Optical Network (EON) has been proposed. In the EON architecture, there are fine-grained bandwidth gaps (for example, 12.5GHZ). He compares The granularity of the ITU-T bandwidth gap (50GHZ or 100GHZ) followed by the WDM network is much smaller, and these bandwidth gaps can be combined as needed to provide wider channels to flexibly adapt to services of various rates and improve Spectrum utilization. [0003] In order to save the use of network resources in the network, we need to select a reasonable route for the business, which is called the route optimization problem. In order to add services to the EON network, the control plane mus...

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Application Information

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IPC IPC(8): H04L12/725H04L12/733H04L45/122
CPCH04L45/30H04L45/122
Inventor 王雄张骞任婧徐世中王晟
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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