Virtual network function deployment method of service function chain

A technology of virtual network function and service function chain, applied in the field of virtual network function deployment, can solve the problem of consuming large resources, and achieve the effect of reducing deployment time, saving path search time, and improving deployment efficiency

Inactive Publication Date: 2018-02-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the first method can guarantee the reliability of users, the backup protection mechanism it proposes will consume a lot of resources to provide and maintain backup VNFs; the second algorithm is to ensure the reliability of NFV after it is deployed. evaluation, and does not provide reliability guarantees for deployment algorithms

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  • Virtual network function deployment method of service function chain
  • Virtual network function deployment method of service function chain
  • Virtual network function deployment method of service function chain

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Embodiment Construction

[0046] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0047] refer to figure 1 , figure 1 A flowchart showing an embodiment of a method for deploying a virtual network function of a service function chain; figure 1 As shown, the method includes steps 101 to 108.

[0048] In step 101, the topological diagram of the service function chain and the underlying network is obtained; Figure 4 where a is the service function chain, b is the underlying network topology, such as Fi...

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Abstract

The invention discloses a virtual network function deployment method of a service function chain. The method comprises steps of successively selecting un-deployed VNFs in the service function chain; when the current VNF is not the last VNF, calculating the reliability value from each top point in a top point set to a source point s; when a non-target top point meets a preset constraint, using thereliability value from the top point to the source point s to update the preset reliability value of the top point; selecting a non-target top point corresponding to the biggest top point reliabilityvalue to deploy the current VNF; when the current VNF is the last VNF in the service function chain, calculating a first calculation value; when the top point meets a preset condition, using the ratioof the first calculation value of the current top point to an attribute reliability value of the current top point to update a preset threshold of the current top point; and when all the top points in the top point set are traversed, selecting the top point corresponding to the biggest set threshold in all the top points to deploy the last VNF, and outputting a deployment scheme.

Description

technical field [0001] The invention relates to a virtual network function deployment technology in a network function virtualization network topology, in particular to a virtual network function deployment method of a service function chain. Background technique [0002] In recent years, as user demands become more and more variable and diverse, communication service providers (TSPs) are increasingly required to find a more flexible and lower-cost way to deploy network services. In this regard, the emergence of NFV makes it possible to flexibly and effectively deploy service function chains dynamically without changing special equipment; since the European Telecommunications Standards Institute (ETSI) proposed the standard description structure of NFV, the architecture of NFV has become a hot topic of many scholars. subject of research. [0003] figure 1 describes a simple NFV architecture, image 3 The middle virtualization layer includes all virtual machines, and the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
CPCH04L41/145
Inventor 孙健李瑶孙罡廖丹
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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