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Device and method for realizing abnormal flow control

A technology of abnormal flow and flow control, applied in the field of data communication, can solve problems such as difficulty in implementation, low practical value, and complexity, and achieve the effect of ensuring forwarding performance

Inactive Publication Date: 2006-10-25
ZTE CORP
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Problems solved by technology

However, due to the lack of a unified classification standard, and this method is too complicated, it is actually difficult to implement. Even if it is used, it will have too much impact on the forwarding performance due to the real-time analysis in the forwarding engine, and the practical value is not high.
[0010] In summary, the existing methods are either difficult to achieve real-time analysis and control of abnormal traffic in the network, or cannot maintain the forwarding performance of the forwarding device, so it is necessary to improve

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  • Device and method for realizing abnormal flow control
  • Device and method for realizing abnormal flow control
  • Device and method for realizing abnormal flow control

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Embodiment Construction

[0047] The device of the present invention is composed of two functional modules. The forwarding engine is responsible for data forwarding and actual traffic detection and control processing. The traffic analysis unit performs statistical analysis according to the packets sent by the forwarding engine, and uses the analysis results to set the forwarding engine. Controls the behavior of the forwarding engine. The real-time analysis in the method adopts a sampling method, that is, to analyze short packets within a certain period of time, rather than continuous dynamic analysis, which greatly reduces the processing workload.

[0048] The method for abnormal flow control in the data forwarding device according to the present invention is as follows:

[0049] 1. The forwarding engine monitors network traffic, starts sampling when the traffic exceeds the control threshold, and sends short packets to the traffic analysis unit for analysis;

[0050] 2. The traffic analysis unit analy...

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Abstract

The invention relates to a device and method for realizing abnormal flow control, in particular to a processing method for controlling abnormal flow in communication data forwarding equipment. The present invention consists of two functional modules. The forwarding engine is responsible for data forwarding and actual traffic detection and control processing. The traffic analysis unit performs statistical analysis according to the packets sent by the forwarding engine, and uses the analysis results to set the forwarding engine and control the forwarding engine. the behavior of. The real-time analysis in the method adopts a sampling method, that is, to analyze short packets within a certain period of time, rather than continuously and dynamically analyzing them. The invention greatly reduces the processing workload, and ensures the forwarding performance of the forwarding engine, can control the most common abnormal flow in the existing network environment, and has strong practical value in the field of data communication.

Description

technical field [0001] The invention relates to a device and method for realizing abnormal flow control, in particular to a processing method for controlling abnormal flow in communication data forwarding equipment. The invention has strong practical value in the field of data communication. Background technique [0002] In the work of data communication forwarding equipment such as switches and routers, if the traffic passing through the forwarding equipment exceeds the processing capacity of the equipment at a certain time, it will cause congestion. At this time, the throughput will decrease with the increase of load, and the communication performance will decrease. . [0003] DOS (Denial of Service) attack is an important reason that affects network security and performance. It sends a large number of attack data packets to the attacked device to consume the limited resources of the attacked object. If the forwarding device itself is the attacked target, it may lose Norm...

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Application Information

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IPC IPC(8): H04L12/24H04L12/08H04L12/26H04L29/02
Inventor 童登金李浩江吴捷
Owner ZTE CORP
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