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A method and system for traffic scheduling based on domain name

A technology of traffic scheduling and domain name, applied in the field of data communication, can solve the problem of heavy load of SDN controller and achieve the effect of high-efficiency learning

Active Publication Date: 2021-10-01
SHANGHAI COMMITTEE CHINA TELECOM GRP LABOR UNION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this technical solution, the SDN controller essentially becomes a DNS server. At the same time, it also undertakes various processing of the flow table and initiates a TCP connection to the IP address, etc., which makes the load on the SDN controller very heavy.

Method used

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  • A method and system for traffic scheduling based on domain name
  • A method and system for traffic scheduling based on domain name
  • A method and system for traffic scheduling based on domain name

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Embodiment Construction

[0081] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also belong to the scope of the present invention as long as they conform to the gist of the present invention.

[0082] In a preferred embodiment of the present invention, based on the above problems in the prior art, a traffic scheduling method based on a domain name is provided, which is applied to a software-defined network. The software-defined network includes a controller and a controller connected to the controller. A network device, the network device includes a switch and a domain name resolution proxy server connected to the switch;

[0083] The software-defined network is connected to the external client, and the client is connected to the network device;

[0084] Such as figure 1 As shown, the traffic scheduling method specifically includes the fol...

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Abstract

The invention provides a domain name-based application traffic scheduling method, which relates to the technical field of data communication, including: a network device hijacks a domain name resolution request message sent by a client, and forwards it to a domain name resolution proxy server; the domain name resolution proxy server according to The domain name resolution request message analyzes the domain name, generates a corresponding special message according to the analysis result and forwards it to the switch; the switch learns the special message according to the learning flow table generated and delivered by the controller in advance to obtain the corresponding forwarding flow table, And correspondingly forward the IP address corresponding to the domain name according to the forwarding flow table. The invention prevents the controller from becoming a domain name server, avoids the influence of frequent domain name resolution requests on the controller, maintains the control flexibility of the controller, and effectively reduces the load pressure of the controller.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a domain name-based flow scheduling method and system. Background technique [0002] With the continuous development of the Internet, businesses are diversified. Internet services have put forward higher and higher transmission quality requirements for the Internet, including large bandwidth, security assurance, flexible scheduling, and intelligent management. [0003] As a new network innovation architecture, Software Defined Network (SDN) is an implementation method of network virtualization. Its core idea is to decouple network devices through OpenFlow and realize the separation of control plane and data plane. In this way, the flexible control of network traffic is realized, and the network becomes more intelligent as a communication channel. As the core of the software-defined network, the SDN controller is responsible for the maintenance of the entire n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/803H04L29/06H04L29/08H04L29/12H04L45/74
CPCH04L69/22H04L47/125H04L45/745H04L61/4511H04L67/56H04L67/63
Inventor 夏俊汤力彭雨婷茅依露杨炳丰吴宏美
Owner SHANGHAI COMMITTEE CHINA TELECOM GRP LABOR UNION
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