Method and system for defending DDoS attack detection facing 5G network slicing

A technology of attack detection and 5g network, applied in the field of DDoS attack detection and attack defense, can solve the problem of low efficiency of defense against DDoS attacks

Active Publication Date: 2017-10-03
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing technology cannot target the sub-device under the node under the DDoS attack and cause the low efficiency of defending the DDoS attack in the later stage. The present invention provides a 5G network slicing based on SDN technology. DDoS attack detection and attack defense method and system of

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  • Method and system for defending DDoS attack detection facing 5G network slicing

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[0087] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0088] Combine below Figure 1-Figure 3 The present invention will be described in detail.

[0089] Embodiments of the present invention provide a method for detecting and defending against DDoS attacks from the perspective of OpenFlow flow tables in an SDN-based 5G network slice environment. The method mainly includes:

[0090] (1) The ne...

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Abstract

The invention discloses a method and a system for defending DDoS attack detection facing 5G network slicing, and aims to solve the problem that the later defense efficiency of DDoS attack is low caused by the fact that sub-equipment attacked by DDoS under nodes cannot be judged purposefully in the prior art. Accurate feature extraction is carried for flow table information, a Hash table using equipment as a bond is established for recording abnormal data flows of the equipment, and discarding and shielding treatment is carried out in later period, so that purposeful DDoS attack judgment is carried out on the sub-equipment under the nodes is realized, accurate and efficient DDoS detection defense is realized, the attack detection efficiency is improved, the attack relief efficiency after attack detection is improved simultaneously, and security assurance is provided for a 5G network with a great deal of SDN technology. The method and the system are applicable for related fields of network detection defense.

Description

technical field [0001] The invention belongs to the field of network security, and more specifically, relates to a DDoS attack detection and attack defense method and system for 5G network slicing based on SDN technology. Background technique [0002] In the field of mobile communications, from the initial 2G, 3G, to the now widely used 4G network, mobile networks mainly serve mobile phones, and generally only do some optimization for mobile phones. After entering 5G, the communication scenarios will become diversified and complex, and the communication between things will develop rapidly, greatly exceeding the communication needs between people. The traditional cellular network and the "one size fits all" model can no longer meet the different needs of all walks of life for the network in the 5G era. In the future 5G system, the network will be further abstracted into "network slicing" through SDN / NFV technology, thereby supporting the use of thousands of use cases, numero...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04W12/12
CPCH04L63/1458H04W12/12
Inventor 阳小龙孙晓宁陈媛孙奇福张敏
Owner UNIV OF SCI & TECH BEIJING
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