A Wireless Virtual Network Mapping Method Based on Bottom Network Segmentation

Abstract

The invention discloses a wireless virtual network mapping method based on the segmentation of the underlying network. The method includes the following steps: (1) constructing an underlying network; (2) constructing a group of virtual networks; (3) constructing the underlying network Divide into M levels; (4) map a virtual network node to a small network on the currently mapped underlying network level that meets the node mapping conditions; (5) the underlying network whose nodes are successfully mapped, according to the mapped The underlying node searches for the shortest underlying path that needs to be mapped by the virtual link, and performs link mapping. The invention reduces the complexity of segmentation; can shorten the distance of the underlying path of link mapping, and reduce the mapping cost; the invention evenly distributes the virtual network on different underlying small networks, can balance the load of the underlying network, improve the utilization rate of the underlying network resources and the success of mapping rate, thereby increasing revenue.

Description

technical field [0001] The invention relates to a wireless virtual network mapping method, in particular to a wireless virtual network mapping method based on bottom network segmentation. Background technique [0002] Network virtualization technology has been a research focus for a long time. Its main idea is to separate the traditional network into two parts: the underlying network and the virtual network. Among them, the underlying network provides resources required for services, such as node computing resources, link bandwidth resources, etc.; virtual networks are used to provide services. When there is a service demand, the virtual network sends a request to the underlying network according to the resources required for the service, and the underlying network reasonably allocates its own resources to the virtual network according to the remaining resources. After the virtual network service ends, the resources occupied on the underlying network are released. In this ...

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Problems solved by technology

[0008] Purpose of the invention: In order to overcome the deficiencies of the prior art, the present invention provides a wireless virtual network mapping method based on underlying network segmentation, which reduces the complexity of network segmentation and solves the problems of long link mapping distance, high mapping cost, and low Unbalanced load and low mapping success rate

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