Wireless virtual network mapping method based on underlying network segmentation

Abstract

The invention discloses a wireless virtual network mapping method based on underlying network segmentation. The method comprises the following steps: (1) constructing an underlying network; (2) constructing a group of virtual networks; (3) dividing the constructed underlying network into M levels; (4) mapping a virtual network node to a small network on the current mapping underlying network levelmeeting the node mapping condition; and (5) searching the shortest underlying path needing to be mapped by the virtual link according to the mapped underlying node of the underlying network with thesuccessfully mapped node, and carrying out link mapping. The segmentation complexity is reduced. The bottom path distance of link mapping can be shortened, and the mapping cost is reduced. The virtualnetworks are uniformly distributed on different underlying small networks, the underlying network load can be balanced, the underlying network resource utilization rate and the mapping success rate are improved, and the income is increased.

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 layer network segmentation. Background technique [0002] Network virtualization technology has long been a research focus, and 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.; the virtual network is 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 by it on the underlying network are released. I...

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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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