Service quality aware virtual network mapping method and device

A technology of virtual network mapping and virtual network, which is applied in data exchange networks, digital transmission systems, electrical components, etc., and can solve the problems of only considering delay, low request reception rate and resource utilization, and few QoS metrics.

Active Publication Date: 2020-04-10
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
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  • Claims
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Problems solved by technology

[0009] In practical applications, the inventors of the present invention have found that the above-mentioned existing QoS-aware VNE algorithms only consider delay, and the QoS metrics are too few; and all virtual network requests are treated uniformly, resulting in low request reception rate and resource utilization

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  • Service quality aware virtual network mapping method and device
  • Service quality aware virtual network mapping method and device
  • Service quality aware virtual network mapping method and device

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0054] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that when an element is referred to as being "connected" or "coupled" to another el...

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Abstract

The invention discloses a service quality aware virtual network mapping method and device, and the method comprises the steps: for each virtual node requested by a current to-be-mapped virtual network, outputting a node mapping result of the virtual node through a node mapping strategy network obtained through pre-training according to the resource state of a current underlying physical network; completing link mapping of the virtual network request based on node mapping results of all virtual nodes in the virtual network request, wherein the node mapping strategy network is obtained by takinga difference between a resource utilization rate U of a bottom layer physical network during training and a service quality loss L requested by the virtual network as award training. According to theinvention, the balance between various service quality measurement indexes and the improvement of the resource utilization rate can be realized.

Description

technical field [0001] The present invention relates to the technical field of virtual network mapping, in particular to a quality of service-aware virtual network mapping method and device. Background technique [0002] Network virtualization allows multiple virtual networks (VNs) to run concurrently on a shared underlying physical network (SN). The virtual network is composed of a group of virtual nodes and the virtual links connecting these virtual nodes, and the underlying physical network is composed of a group of physical nodes and the physical links connecting these physical nodes. Virtual network mapping (VNE) is one of the key technologies of network virtualization. The main goal of VNE is to map virtual network requests (VNRs) to SNs, thereby efficiently utilizing the resources of the underlying physical network. At present, a large number of heuristic VNE algorithms and machine learning-based VNE algorithms have been proposed. [0003] Among them, the heuristic...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/927H04L29/08H04L47/80
CPCH04L47/805H04L67/61
Inventor 卢美莲李蒙
Owner BEIJING UNIV OF POSTS & TELECOMM
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