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Bandwidth guarantee type virtual network function (VNF) deployment method

A virtual network function and bandwidth technology, applied in the field of virtual machine deployment, can solve the problems of wasting bandwidth and aggravating network overhead, and achieve the effect of reducing bandwidth consumption and ensuring bandwidth requirements.

Inactive Publication Date: 2017-02-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poor placement causes traffic to take a longer path, thus potentially wasting more bandwidth
Second, the elastic expansion strategy will lead to more virtual machine operation overhead, including virtual machine startup, termination, migration, and state synchronization.
The variable traffic load of the data center will lead to frequent expansion and migration of virtual machines, which inevitably increases network overhead

Method used

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  • Bandwidth guarantee type virtual network function (VNF) deployment method
  • Bandwidth guarantee type virtual network function (VNF) deployment method
  • Bandwidth guarantee type virtual network function (VNF) deployment method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0040] The present invention mainly proposes an SFC request model based on bandwidth guarantee and a corresponding VNF placement scheme in a data center network, with the purpose of saving network bandwidth resources and reducing virtual machine overhead. Data center tenants request SFC and specify the total bandwidth requirements. We guarantee the bandwidth requirements of tenants and decide how to deploy their SFC requests to the data center network, which not only guarantees the performance of tenants, but also saves global bandwidth.

[0041] Such as figure 1 As shown, three dotted boxes represent three VNFs (virtual network functions), and boxes 1-9 represent different VNF ​​instances, and different virtual network functions require different numbers of VNF instances. Arrows and marked numbers indicate the network traffic that different VNFs need to load. When a te...

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Abstract

The invention belongs to the technical field of network function virtualization and bandwidth guarantee type virtual machine deployment, and in particular relates to a bandwidth guarantee type virtual network function (VNF) deployment method. The method comprises the following steps of: (1), establishing a VNF example communication diagram according to SFC and bandwidth requirements; and (2), on the basis of the generated VNF example communication diagram, establishing a corresponding bandwidth guarantee type VNF example deployment scheme. According to the bandwidth guarantee type VNF deployment method disclosed by the invention, a bandwidth guarantee type VNF deployment strategy is adopted; according to bandwidth information provided by users, better globally optimized VNF deployment can be made in combination with a current global resource use condition; by means of a VNF example communication model and a VNF deployment algorithm of a heuristic algorithm, on one hand, bandwidth requirements of users are ensured; on the other hand, virtual machines of users can be placed in a centralized manner; therefore, unnecessary bandwidth loss can be reduced; more examples can be accepted.

Description

technical field [0001] The invention belongs to the technical field of virtual machine deployment of network function virtualization and bandwidth guarantee, and in particular relates to a virtual network function deployment method of bandwidth guarantee. Background technique [0002] The public cloud data center provides tenants with computing resources, storage resources and network resources to meet their needs, and the rise of cloud computing and NFV (Network Function Virtualization, that is, network function virtualization) also makes enterprises use their virtual network functions (VNF ) are deployed in cloud data centers to reduce costs and increase efficiency. In the NFV scenario, the tenant's request is usually SFC (Service Function Chaining, that is, the service function chain). How to deploy the tenant's SFC request with reasonable bandwidth guarantee is an important research issue in current network research. [0003] Existing VNF deployment methods mostly adopt...

Claims

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Application Information

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IPC IPC(8): H04L12/46
CPCH04L12/4641Y02D30/50
Inventor 李丹王方鑫
Owner TSINGHUA UNIV
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