Elastic optical network based resource distribution method in virtual network mapping

Abstract

The invention provides an elastic optical network based resource distribution method in virtual network mapping and mainly solves a problem of resource distribution based on an electric optical network in virtual network mapping. The specific steps include: 1, forming a virtual network; 2, performing general initiation; 3, performing local initiation; 4, mapping virtual network nodes; 5, calculating virtual network node fitness; 6, recording a mapping result; 7, judging whether the number of ants of each generation is 0 or not; 8, updating an information prime matrix; 9, judging whether the ant generation number is 0 or not; 10, obtaining a final mapping result of the virtual network nodes; 11, mapping a virtual network link. According to the invention, by adopting an adaptive method and a continuous contiguity method, influence on physical network nodes by the virtual network link is evaluated comprehensively, network mapping jam rate and the amount of physical network link resource occupied by the virtual network are reduced, and physical network link load balance is improved.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a resource allocation method based on an elastic optical network in virtual network mapping in the technical field of wired communication. The present invention can be applied in the elastic optical network of the data center to allocate resources in the elastic optical network of the data center for virtual network requests. Background technique [0002] In recent years, the Internet's demand for bandwidth has greatly promoted the development of high-bandwidth, scalable communication and network technologies. The high bandwidth capacity of the optical fiber communication network has been highly valued by the academic and industrial circles, and is considered to be an important part of the core and backbone network in the future network system. However, the existing optical communication technology can only achieve relatively rough allocation and scheduling of optica...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the method performs a mapping of the virtual network mapping once, resulting in a high blocking rate; because the selection of the virtual network link path does not consider the node resources, resulting in misjudgment of the impact, which also causes the virtual network mapping blocking rate higher

The disadvantage of this method is that the mapping of the virtual network does not consider the load of the physical network, which will cause the allocation of mapping resources to be concentrated locally and the virtual network to occupy a large amount of physical network link resources.

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