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A method and device for generating a global flow table based on SDN

A flow table, global technology, applied in the field of communication, can solve the problems of inability to monitor and suppress data flow, inability to centrally control and control cross-device data flow restoration and analysis, SDN does not have the ability of global vision, etc., to improve security. Effect

Active Publication Date: 2018-12-11
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a brand-new network architecture system, although SDN has many advantages, due to the limitations of its structure, deployment and architecture, SDN-based does not have a global vision capability, and cannot perform centralized management and control and cross-device data flow. Complete restoration and analysis, only partial data can be detected
For example, when an SDN-based detection terminal detects a malicious data flow, it can only analyze the node data around the detection terminal, and cannot accurately monitor and suppress the data flow.

Method used

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  • A method and device for generating a global flow table based on SDN
  • A method and device for generating a global flow table based on SDN
  • A method and device for generating a global flow table based on SDN

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Embodiment Construction

[0043] In order to effectively improve the integrity of the network and control the data flow in the network, embodiments of the present invention provide a method and device for generating a global flow table based on SDN.

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0045] figure 1 An SDN-based global flow table generation process provided by an embodiment of the present invention includes the following steps:

[0046] S101: The network controller obtains the forwarding flow table ...

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Abstract

The embodiment of the invention discloses an SDN-based global flow table generation method and device, which are used to improve the integrity of the network and manage and control the data flow in the network. The method includes: the network device controller obtains the forwarding flow table stored on each switching device according to the set time interval, determines the set of information of the switching device with the same data flow identifier, and in each set according to the forwarding data flow Sequence, to determine the sequence of information of switching devices in the forwarding link. The embodiment of the invention also discloses a corresponding device. In the embodiment of the present invention, the switching devices belonging to the same forwarding link can be identified according to the forwarding flow table stored in the switching device, and the order of the switching devices in the forwarding link can be determined according to the order of forwarding data flows. Therefore, the information of each data flow in the current periodic network topology can be effectively obtained, so as to realize the management and control of the entire network data flow, contain malicious flows, and improve network security.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for generating a global flow table based on SDN. Background technique [0002] With the rapid development of Internet technology, many operational problems have appeared in large data centers, such as the lack of open interfaces for network equipment, poor interoperability between network equipment, and difficulty in expanding network scale. The development of Software-Defined Networking (SDN) has proposed possible solutions to the above problems. SDN reconstructs the existing network in the form of software, subverts the communication and management mode of the existing network, separates the control function from the network node, controls the flow in a programmable way, and builds a dynamic, open and controllable network environment . [0003] As a brand-new network architecture system, although SDN has many advantages, due to its structure, deplo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/947H04L12/751H04L45/02
CPCH04L45/02H04L49/252H04L63/0218H04L63/1408H04L63/1441
Inventor 任秋峥裘晓峰陈鹏程行盼宁赵瑞梁晓东苏静王维甲李晶宋艳
Owner BEIJING UNIV OF POSTS & TELECOMM
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