A flow control method, device and system

Abstract

The invention discloses a flow control method, device and system. The method includes, in the current time domain, parsing the input message to obtain the length value of each input message; reading the cached message information about the memory in the internal register; according to the length value of each input message and the cached message information, obtaining Input the total flow value; if the input total flow value is less than the preset flow valve register value, then judge whether there is a message stored in the memory, if there is a message stored in the memory, then take out the stored message and output it together with the subsequent input flow to At the same time, the server updates the start address of the message read in the cached message information and the length value of the pre-read first message; if it is greater than or equal to the value of the flow valve register, the subsequent input flow is stored in the memory, and the cache is updated at the same time The message storage end address in the message information. The invention has the beneficial effect of maintaining the integrity of the message by sacrificing the timeliness of some messages without adding servers and complicated operations.

Description

technical field [0001] The present invention relates to the technical field of network security, in particular to a flow control method, device and system. Background technique [0002] With the continuous improvement of the transmission link rate and the continuous growth of network traffic, the transmission of traffic is often not uniform, and there are sudden situations. That is, the flow reaches a high peak in a certain period of time, but the flow drops to a lower point in the next period of time, and the fluctuation changes greatly. Huge burst traffic often exceeds the storage space and processing capabilities of the backend server, causing the server to discard some packets. Therefore, in addition to the aggregation and distribution of traffic, the front-end equipment can monitor the burst traffic in real time, cache the burst traffic, and output it smoothly after shaping to ensure that the processing capacity of the back-end server is not exceeded. [0003] The exi...

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Problems solved by technology

[0008] Based on the above reasons, the object of the present invention is to provide a flow control method, device and system, which is used to solve the problem that the port storage space of the server in the existing method is very limited and cannot cope with the temporary storage requirements of burst traffic, and the method does not need to increase transmission The number of lines and back-end servers can ensure the integrity of message flow

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