Virtual network mapping method based on function block

A technology of virtual network mapping and virtual network, which is applied in the direction of network interconnection and data exchange through path configuration, which can solve the problem of not involving logic processing resources, and achieve the effect of saving mapping overhead

Active Publication Date: 2014-04-30
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The current virtual network mapping research is based on the user's business needs, only considering abstract resources such as CPU, bandwidth, space, etc., and does not involve logical processing resources

Method used

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  • Virtual network mapping method based on function block
  • Virtual network mapping method based on function block
  • Virtual network mapping method based on function block

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Embodiment

[0035]The video conferencing service is taken as an example below to describe the process of the virtual network mapping method based on function blocks. For example, if the video conference required by the user requires an image resolution of 640*480, 25 frames per second, and a delay of less than 1 second, the management platform will inform the controller of the business requirements. The controller converts the service requirements into performance requirements for the service network, for example, a virtual service network with IPv4 2M bandwidth and a delay lower than 0.2ms is required to meet the above services. At the same time, the controller completes the mapping of the service requirements to the relevant logic function blocks. If it is necessary to configure resource reservation logic function blocks, reserve 2M bandwidth, and configure classification / scheduling logic function blocks to ensure that the data forwarding priority is the highest. In this way, a virtual ...

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Abstract

The invention discloses a virtual network mapping method based on a function block. The method includes the steps that virtual nodes in a virtual network request are arranged according to CPU demand values in an ascending mode; the unmapped virtual node with the minimum CPU demand value is selected, and alternative physical node sets meeting CPU demands of the virtual nodes and position demands of the virtual nodes are sought for in a bottom-layer physical network; if the situation that the logic function block required by the virtual node is rented by the alternative physical nodes exists, the physical node, with the largest shared benefits, of the logic function block is selected to be used as a mapping node; otherwise, the physical node with the most abundant CPUs is selected from the alternative physical nodes to be used for mapping. According to the method, the logic function block concept is introduced in the virtual network mapping process, and distribution of virtual processing resources is considered. According to the method, a logic function block resource sharing scheme is provided, and mapping overhead is saved in the mapping process.

Description

technical field [0001] The present invention relates to the field of SDN (Software Defined Network, software defined network) network virtualization, in particular to a virtual network mapping method based on function blocks. Background technique [0002] Network virtualization is the independent operation of multiple VNs (Virtual Network, virtual network) on a physical network, which makes each user as if they have exclusive use of the physical network. It provides services to users by selectively scheduling resources through abstraction, allocation, and isolation mechanisms to maximize the utilization of physical network resources. Network virtualization is an important technology for building a new generation of Internet architecture, and it is also one of the core technologies of SDN research. SDN network virtualization mainly supports the following two features of SDN: three-layer separation of application layer, control layer and forwarding layer in the network, and n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46
Inventor 董黎刚王伟明李莹屈建平张华飞
Owner ZHEJIANG GONGSHANG UNIVERSITY
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