Efficient energy-saving virtual network node mapping model and algorithm
A node mapping and virtual network technology, applied in the direction of network interconnection, data exchange through path configuration, etc., can solve the problem that the mapping energy consumption cost cannot be guaranteed, and reduce the energy consumption cost of node mapping, reduce node energy consumption, Mapping energy-optimized effects
Active Publication Date: 2015-08-05
HUZHOU TEACHERS COLLEGE
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[0010] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a high-efficiency energy-saving virtual network node mapping model and algorithm, which aims to solve the technical problem that the virtual network mapping algorithm in the prior art cannot guarantee the least mapping energy consumption cost
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[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0047] refer to figure 1 , the embodiment of the present invention provides a high-efficiency energy-saving virtual network node mapping model. The initial value of the node mapping model is: there are m underlying network nodes, and the underlying node with CPU resources is A i (i=1,2,...,m), the amount of CPU resources is respectively a i (i=1,2,...,m); there are n virtual network nodes, and the vir...
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The invention is suitable for the technical field of node mapping methods suitable for virtual networks, and discloses an efficient energy-saving virtual network node mapping model. xij is set as the CPU (Central Processing Unit) resource quantity allocated to Bi by Ai; the energy consumption cost on allocation of unit CPU resources from Ai to Bj is Cij; calculation is performed according to a formula shown in the description; and the output values of the node mapping model are Aimin and Bjmax. According to the efficient energy-saving virtual network node mapping model, bottom layer nodes with maximum current CPU resource quantities and virtual nodes with minimum CPU demand quantities can be calculated according to the energy consumption characteristic of virtual network node mapping on the basis of a minimum element method, and the virtual nodes are mapped to corresponding to bottom layer nodes, so that optimization of virtual network mapping energy consumption is realized, and the CPU utilization ratio is increased. Meanwhile, the bottom layer nodes can be mapped to activated nodes as much as possible, and the node mapping energy consumption cost is lowered greatly, so that the node energy consumption is lowered remarkably. The efficient energy-saving virtual network node mapping model is particularly suitable for a large-scale virtual network mapping scene.
Description
【Technical field】 [0001] The invention relates to a virtual network node mapping method, in particular to a high-efficiency energy-saving virtual network node mapping model and algorithm. 【Background technique】 [0002] The current network is designed for peak loads. The oversupply of network resources ensures the normal operation of the network, but it also leads to low resource utilization. Network virtualization is an important technology for the future Internet, cloud computing and software-defined networks. It manages the underlying network infrastructure and implements virtual network resource allocation, making it possible to deploy intelligent energy-aware networks. Virtual network mapping is a key issue in network resource virtualization. Most of the current mapping algorithms are virtual network mapping based on energy consumption, that is, mapping virtual network requests with the minimum underlying resource cost, so as to obtain more underlying physical resourc...
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Inventor 蒋云良李春芝陈晓华申情
Owner HUZHOU TEACHERS COLLEGE