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High-speed network flow sampling method and device based on compressed sensing

A compressed sensing and high-speed network technology, applied in the field of network communication technology and network communication facilities research, can solve problems such as slow acquisition rate, limited acquisition range, and impact on network equipment performance, so as to facilitate storage and transmission and increase sampling speed , the effect of comprehensive collection

Inactive Publication Date: 2019-08-20
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above technologies can realize the task of collecting traffic in different scenarios, there are problems such as insufficiently rich and accurate information collection, limited collection range, impact on network device performance, or slow collection rate. For example, Netflow does not include MAC For address information, Sniffer generally only targets rates below 1000M and focuses on traffic analysis of a single link

Method used

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  • High-speed network flow sampling method and device based on compressed sensing
  • High-speed network flow sampling method and device based on compressed sensing
  • High-speed network flow sampling method and device based on compressed sensing

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Embodiment 1

[0040] This embodiment provides a high-speed network traffic sampling method, which is mainly to effectively collect the traffic on the router based on the compressed sensing method. The following is combined with the attached figure 1 , 2 The method steps are described in detail.

[0041] S1: Traffic identification.

[0042]For the consideration of improving the follow-up sampling speed, the method described in this embodiment will not collect all traffic on the router, but mainly collect traffic data such as network attacks, malicious traffic, and dark web access transmitted through specific protocols. For example, network attacks often The TCP / IP protocol used, the MTProto protocol used by the darknet communication software Telegram, etc., so before sampling the network traffic, first set the specific protocol for the focus, and only identify the traffic of the specific protocol. During the collection process, It is judged whether the traffic belongs to the traffic data t...

Embodiment 2

[0057] This embodiment provides a high-speed network traffic sampling device based on compressed sensing, such as image 3 As shown, the sampling device includes:

[0058] A traffic identification unit, configured to identify traffic input by the router;

[0059] A traffic cache unit, configured to cache traffic on the router;

[0060] A traffic collection unit, configured to collect cached traffic based on a compressed sensing method;

[0061] The traffic sending unit is configured to send the collected traffic to a remote data analysis server.

[0062] In this embodiment, the traffic identification unit and the traffic cache unit can be regarded as a traffic identification component, and the traffic collection unit and the traffic sending unit can be regarded as a traffic collection component. After the traffic flows into the traffic identification component, it is finally sent to the remote data analysis server.

[0063] In this embodiment, the traffic identification un...

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Abstract

The invention discloses a high-speed network flow sampling method based on compressed sensing. The high-speed network flow sampling method comprises the following steps: caching flow on a router; collecting the cached flow based on a compressed sensing method; and sending the collected flow to a remote data analysis server. The high-speed network flow sampling device based on compressed sensing comprises a flow caching unit used for carrying out flow caching on flow on a router; and a flow acquisition unit used for acquiring cached flow based on a compressed sensing method; and a flow sendingunit used for sending the collected flow to a remote data analysis server. The invention also provides a scheme for carrying out compressed sampling on the flow data transmitted by the specific protocol. According to the high-speed network flow sampling method based on compressed sensing, the storage space and the transmission bandwidth of flow processing can be effectively reduced, so that the sampling speed is greatly increased.

Description

technical field [0001] The invention relates to the field of network communication technology and network communication facilities research, in particular to a method and device for sampling high-speed network traffic based on compressed sensing. Background technique [0002] With the popularization of the Internet and the rapid growth of Internet users and devices, network data and traffic have shown a blowout growth. In addition to the traffic generated by the normal activities of users and devices, these traffic data are also mixed with numerous network attacks, Malicious traffic, dark web access traffic, and other malicious behavior data that may threaten the safety of people's property and cyberspace security, so it is necessary to collect such traffic data at high speed and accurately for further analysis, so as to prevent and control people's property safety and network security in a timely manner. Illegal and criminal acts in space security. [0003] Traditional met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L29/06
CPCH04L43/04H04L43/0876H04L43/50H04L63/1408H04L63/1416H04L63/1425
Inventor 谭庆丰崔翔陈小龙谭润楠张宇
Owner GUANGZHOU UNIVERSITY
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