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Method and device for mapping virtual network

A technology of virtual network mapping and virtual network, applied in network interconnection, data exchange network, data exchange through path configuration, etc., can solve the problem of low robustness and achieve good robustness

Inactive Publication Date: 2013-01-30
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a virtual link mapping method, which solves the problem of low robustness in the existing virtual network construction method

Method used

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  • Method and device for mapping virtual network
  • Method and device for mapping virtual network
  • Method and device for mapping virtual network

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] For achieving the above object, technical scheme of the present invention is achieved in that way:

[0027] figure 1 It is a flowchart of a virtual network mapping method in the present invention, and the method is applicable to the process of mapping a virtual network to an actual network. Such as figure 1 said,

[0028] Step 101, receiving a virtual network request message from a user for mapping a virtual network to an actual network, where the virtual network request message carries virtual node requirements and virtual link requirements.

[0029] Step 102, according to the resources required by the virtual node in the virtual node requirements, select a physical node from the actual network, and map the virtual node to t...

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Abstract

The invention discloses a method and a device for mapping a virtual network. The method comprises the steps of receiving a virtual network request message of a user for mapping the virtual network to an actual network, wherein virtual node demands and virtual link demands are carried in the virtual network request message; selecting physical nodes from the actual network according to the resource needed by the virtual nodes in the virtual node demands; mapping the virtual nodes to the selected physical nodes; calculating the link expenditure of a physical link between the two physical nodes corresponding to the virtual nodes at the two ends of the virtual link according to the corresponding relation between the network criticality and the link expenditure; selecting the physical link meeting the virtual link demands of the virtual link and having the lowest link expenditure; and mapping the virtual link to the selected physical link. According to the technical scheme provided by the invention, the problem that the existing method for building the virtual network is low in robustness is solved.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a virtual network mapping method and device. Background technique [0002] Network virtualization is a key technology to realize the future network architecture. It allows multiple heterogeneous virtual networks to coexist on the shared underlying physical infrastructure, making the two functional entities of network infrastructure providers and service providers logically separated from each other. Among them, each virtual network is a resource slice of the underlying network, which consists of virtual nodes and virtual links. In addition, using the programmability of the underlying network, the virtual network can run IP or non-IP protocols in a selected topology. Therefore, without changing the network infrastructure, the network virtualization technology can enable various innovative network technologies to run in their respective virtual networks without interfering w...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/725
Inventor 寿国础陈欢彦胡怡红郭志刚
Owner BEIJING UNIV OF POSTS & TELECOMM
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