Network function rapid capacity expansion method based on software-defined network

A software-defined network and network function technology, which is applied in the field of rapid expansion of network functions based on software-defined networks, and can solve problems such as slow convergence of management overloaded network functions, avoiding reconfiguration, solving slow convergence, and reducing convergence time.

Inactive Publication Date: 2020-10-13
FUZHOU UNIV
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a software-defined network-based network function rapid expansion method, which can effectively solve the problem of slow convergence in the management of overloaded network functions

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  • Network function rapid capacity expansion method based on software-defined network
  • Network function rapid capacity expansion method based on software-defined network
  • Network function rapid capacity expansion method based on software-defined network

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Embodiment Construction

[0021] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0022] The present invention provides a software-defined network-based rapid network function expansion method, including the following steps:

[0023] Step S1, the service function chain controller regularly collects the input rate of the network function, and detects the overloaded network function according to the threshold value of the processing capacity of the network function;

[0024] Step S2. When an overloaded network function is detected, model the overloaded network function and downstream network functions, and generate a capacity expansion plan for the entire service function chain at one time;

[0025] Step S3, modifying the service function chain structure according to the capacity expansion plan.

[0026] The following is the specific implementation process of the present invention.

[0027] Please refer to figure 1, t...

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Abstract

The invention relates to a network function rapid expansion method based on a software-defined network. When an overloaded network function is detected, modeling is carried out by considering the overloaded network function and a downstream network function at the same time, and the a problem of capacity expansion of the network function is solved in one step. Particularly, in order to solve the capacity expansion problem, the method disclosed in the invention provides two service function continuous capacity expansion algorithms with different targets. And finally, automatically calculating aA new threshold value is automatically calculated according to the total input rate and the service function chain topology. The capacity expansion plan of the whole service function chain is generated at a time through modeling, unnecessary reconfiguration can be effectively avoidedprevented, convergence time is shortened, and the problem that convergence is slow in the aspect of overload networkfunction management is effectively solved.

Description

technical field [0001] The invention relates to the field of software-defined networks, in particular to a method for rapidly expanding network functions based on software-defined networks. Background technique [0002] Network functions, such as firewalls, deep packet inspection, intrusion detection systems, load balancers, are often deployed as proprietary hardware middleboxes. However, with the increasing diversification of user needs and the rapid growth of Internet traffic, proprietary hardware middleboxes lead to high costs and loss of network management flexibility, both in terms of processing capacity and heterogeneity. The advent of software-defined networking and network functions virtualization offers a cost-effective and flexible solution to overcome these shortcomings. Network function virtualization decouples network functions from hardware, enabling functions such as network address translation, firewalls, intrusion detection, domain name services, and cachin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
CPCH04L41/08H04L41/0823H04L41/12
Inventor 张栋陈翔陈俞辛朱龙隆
Owner FUZHOU UNIV
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