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Network service function chain mapping method

A technology of service function chain and mapping method, applied in the field of network service function chain mapping, can solve the problem of NFV resource allocation without considering the optimal construction of virtual network function deployment of service function chain, etc., to achieve small link load and high service acceptance rate Effect

Inactive Publication Date: 2018-09-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] In order to solve the problems existing in the prior art, the present invention provides a network service function chain mapping method, which solves the problem of NFV resource allocation in the scene where the VNF order is unknown, does not consider the optimal construction of the service function chain and the virtual network Deployment issues with features on work paths

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Embodiment Construction

[0038] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] 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.

[0040] Such as figure 1 As shown, a network service function chain mapping method, the method includes the following steps:

[0041] Step A1: Initialize the program, read the current network topology and service request;

[0042] Step A2: Construct a service function chain according to the VNFs ba...

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Abstract

The invention discloses a network service function chain mapping method. The method comprises the following steps of: SA1: initializing a program, and reading a current network topology and a servicerequest; SA2: constructing a service function chain according to a VNFs (Virtual Network Functions) bandwidth changing factor and a dependency relationship; and SA3: judging whether a met path is found according to a path planning algorithm, if yes, proceeding to the step SA4, or proceeding to the step SA5, and simultaneously, initializing K, wherein K represents the number of short paths and K isenabled to be 1. The network service function chain mapping method solves a problem of NFV resource allocation in a scene in which a VNF sequence is unknown and a problem of no consideration to optimal construction of the service function chain and deployment of the VNFs on a working path.

Description

technical field [0001] The invention relates to the field of network service chains, in particular to a network service function chain mapping method. Background technique [0002] The traditional network structure lacks flexibility and needs to deploy a series of dedicated hardware devices such as firewalls and deep packet inspections to provide services. The use of network function virtualization requires general-purpose hardware to carry the software processing of many functions. By decoupling software and hardware Realize flexible sharing of underlying resources. In NFV networks, corresponding to current telecom services, virtual network functions are software implementations of specific network functions on virtual resources. [0003] The existing method has a coordinator heuristic mapping algorithm CoordVNF. The simulation results show that the algorithm runs much faster than the existing algorithm in the scene with small VNFs. The disadvantage is the evaluation work i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/08
CPCH04L41/0893H04L41/12H04L67/60
Inventor 章小宁李自华王云青宋雪
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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