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Virtual network mapping method and device

A technology of virtual network mapping and virtual network, which is applied in the field of virtual network mapping method and device, and can solve the problems that the SDN environment cannot be fully applied

Active Publication Date: 2016-06-15
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this cooperative node and link mapping algorithm is a traditional virtual network mapping algorithm and cannot be fully applied in the SDN environment.

Method used

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  • Virtual network mapping method and device
  • Virtual network mapping method and device

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] In order to facilitate the understanding of the virtual network mapping method provided by the embodiment of the present invention, the principle content on which the virtual network mapping method provided by the embodiment of the present invention is first introduced. The details are as follows:

[0058] The underlying physical network is represented by an undirected weighted graph, and G is used in the embodiment of the present invention S =(N S ,E S )...

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Abstract

The embodiment of the invention discloses a virtual network mapping method and a device, and the method comprises the steps: when a virtual network requirement arrives, according to candidate physical node range corresponding to each virtual node nV, all candidate physical node sets nV<*> corresponding to virtual nodes are aggregated; the candidate physical nodes nV<*> of bottom physical network are connected in the same way of bottom physical network; available physical links in the reconstituted bottom physical network are determined, the available physical links corresponding to virtual links lij form an available physical link set and calculate link availability of each physical link and link availability of each virtual link, and the links are sorted in descending according to the link availability; mapping is performed on the virtual network according to the sorted available physical link set and the virtual links. According to the invention, the embodiment of the invention is applied to realize virtual network mapping in SDN environment and reduce the mapping cost.

Description

technical field [0001] The invention relates to the technical field of network virtualization, in particular to a virtual network mapping method and device. Background technique [0002] Network virtualization technology is an important means of network resource sharing in the future network. This technology supports multiple heterogeneous virtual networks (VN, virtual network) to coexist in the same physical network isolated from each other, which is conducive to improving the flexibility of VN creation and the physical network. resource utilization. In a network virtualization environment, a virtual network provider (VNP, virtual network provider) is responsible for generating VN requests and renting physical resources according to the request; an infrastructure provider (InP, infrastructure provider) is responsible for providing physical resources for carrying VN. [0003] Due to the strong limitations of the traditional network architecture, a new network architecture i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/721H04L12/733H04L45/122
CPCH04L12/4641H04L45/122H04L45/123
Inventor 王颖李文璟钟旭霞芮兰兰
Owner BEIJING UNIV OF POSTS & TELECOMM
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