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Method for remapping resource demand dynamic change based on virtual network

A technology for virtual network mapping and resource requirements, which is applied in the field of remapping based on dynamic changes in virtual network resource requirements, can solve problems such as mapping results that cannot meet new requirements, and achieve the goals of reducing computational complexity, minimizing resource consumption, and improving efficiency Effect

Active Publication Date: 2011-10-19
TSINGHUA UNIV
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Problems solved by technology

Both of these situations may cause the existing mapping results to fail to meet new requirements, and some virtual nodes and virtual links need to be remapped

Method used

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  • Method for remapping resource demand dynamic change based on virtual network
  • Method for remapping resource demand dynamic change based on virtual network
  • Method for remapping resource demand dynamic change based on virtual network

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Embodiment Construction

[0036] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] figure 1 It is a flow chart of the remapping method based on the dynamic change of virtual network resource requirements according to the embodiment of the present invention. Such as figure 1 As shown, the method shown includes the steps of:

[0038] S100: First, a physical network model, a virtual network model, a physical network available resource model, and an original virtual network mapping model need to be established.

[0039] Physical network model: abstract the physical network into a weighted first undirected graph G S =(N S ,E S ), where N S is the set of all physical nodes, E S is the set of all physical links. When describing resources in a ph...

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Abstract

The invention discloses a method for remapping resource demand dynamic change based on a virtual network, relating to the internet technical field. The method comprises the following steps of: establishing a physical network model, a virtual network model and a physical network available resource model; according to the physical network model and the virtual network model, establishing the original virtual network mapping model; according to the physical network model and the original virtual network mapping model, determining available physical network resources; for the resource demand dynamic change of the virtual network, clearly determining a virtual node and a virtual link to be remapped; determining an order for joining the remapping process of the virtual node to be remapped; according to the order, completing the node mapping and the relative link mapping to the virtual node to be remapped; and updating the available physical network resources. The method disclosed by the invention aims to achieve an optimization purpose of minimum resource consumption, and therefore, the resource cost of each virtual network in the remapping process can be minimized so as to accord with the actual situation.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a remapping method based on dynamic changes in virtual network resource requirements. Background technique [0002] Because of its advantages in network operation, deployment, and evolution, network virtualization has been highly valued by the research community and the industry. Network virtualization technology can support different types of parallel network experiments by building a large-scale experiment platform, thus providing a better solution for network innovation experiments supporting different architectures and services. In recent years, network virtualization, a key technology, has been widely used in the infrastructure construction of network innovation experiments in future network research programs, including the US GENI program (Global Environment for Network Innovations, Global Network Innovation Environment) , the European Union's FIRE (Future Internet Re...

Claims

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Application Information

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IPC IPC(8): H04L12/46
Inventor 曾烈光周烨李勇金德鹏苏厉
Owner TSINGHUA UNIV
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