Virtual network service chain deployment method based on superposition for improvement of availability

A virtual network and virtual network function technology, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of not fully considering the availability of NFVE, so as to improve availability and resource utilization, reduce resource overhead, high The effect of usability

Active Publication Date: 2019-04-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a virtual network service chain deployment method based on superposition to improve availability, solves the problem that existing methods fail to fully consider

Method used

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  • Virtual network service chain deployment method based on superposition for improvement of availability
  • Virtual network service chain deployment method based on superposition for improvement of availability
  • Virtual network service chain deployment method based on superposition for improvement of availability

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Embodiment

[0036] Such as figure 1 As shown, this embodiment proposes a virtual network service chain deployment method based on superposition to improve availability. The main steps are as follows: determine the impact of superposition on the NFVE problem, including the impact on SFC availability, link consumption and SFC dependency Impact; further analysis of the challenges of implementing stacking, including some constraints on stacking, link design, and availability calculations, and a deployment principle based on stacking; modeling the NFVE problem as a nonlinear 0-1 programming problem that allows stacking and will Resource consumption is minimized under availability constraints; a heuristic deployment algorithm is proposed to solve the NFVE problem. in,

[0037] 1) Determine the impact of superposition on SFC availability, link consumption and SFC dependence in NFVE problems, including:

[0038] A) usability

[0039] In NFVE problems, improving superposition can improve the us...

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Abstract

The invention discloses a virtual network service chain deployment method based on superposition for improvement of availability. The virtual network service chain deployment method comprises the steps of: determining influences of superposition on an NFVE problem, including influences on SFC availability, link consumption and SFC dependency; further analyzing challenges of implementing superposition, including some limitations on superposition, link design and availability calculation, and proposing a deployment principle based on superposition; modeling the NFVE problem as a nonlinear 0-1 planning problem for the deployment principle, wherein the nonlinear 0-1 planning problem allows superposition and minimizes resource consumption under availability constraints; and proposing a heuristic deployment algorithm to solve the NFVE problem. The virtual network service chain deployment method proposed by the invention greatly improves the availability and resource utilization of NFV.

Description

technical field [0001] The present invention relates to the field of network function virtualization research, in particular to a method for deploying a virtual network service chain based on superposition to improve availability. Background technique [0002] Network Functions Virtualization (NFV) is a promising approach to address traditional network bottlenecks, reducing CapEx and OpEx. NFV separates physical network devices from the network functions that run on them and implements these network functions in commodity hosts. The main idea of ​​NFV is to utilize virtualization technology to design, deploy and manage customized network services. Certain Virtual Network Functions (VNFs) process requests sequentially, known as Service Function Chaining (SFC). [0003] The main challenge in implementing NFV is the resource allocation of required network services in an NFV-based network infrastructure. In the present invention, the proposed method aims to solve the second s...

Claims

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Application Information

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IPC IPC(8): H04L12/24
CPCH04L41/00H04L41/145
Inventor 赵志为闵革勇张云桐江雨虹杨安琪
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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