Method and system for monitoring DDOS (distributed denial of service) attacks in small flow
A monitoring system and small traffic technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of inability to detect low-rate DDoS attacks, high implementation costs, low ease of use, etc., to prevent denial of service attacks. , make up for the high deployment cost and improve the security level
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[0029] The present invention performs baseline analysis, component analysis, and traffic similarity analysis, and once a threshold alarm occurs after matching the above three models, it is determined that a DDOS attack has occurred. After a DDOS attack occurs, AAA can also perform PPP disconnection on the mobile terminal with the corresponding IMSI number according to the source address, so as to prevent the attack in a timely and effective manner and release the resources on the wireless side. A detailed description will be given below in conjunction with the accompanying drawings.
[0030] figure 1 It is a schematic structural diagram of a system for monitoring small traffic DDOS attacks in the present invention, and the DDOS monitoring system is deployed at the egress of a metropolitan area network.
[0031] The specific structure of the system is as follows figure 2 Shown, including baseline analysis filter, component analysis filter and similarity analysis filter. in:...
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