A data flow identification method and export device

Abstract

Embodiments of the present invention provide a data flow identification method and an egress device. Obtain the latest service application library from the server to the local as the local service application library; receive the first message of the newly created flow, and when the first message does not have a valid record in the local service application library, the newly created Subsequent packets of the flow are identified by application. When any packet in the subsequent packets of the newly created flow matches any rule in the record of the feature rule library through the application identification, it will be established in the record of the local service application library. To create new records to update the local service application library; from the perspective of the application service provider, rely on the cooperation of the server and the export device in the network, and dynamically build the service port and application in the network by integrating the identification information between multiple devices on the server The corresponding relationship between types improves the first packet rate of application identification, improves the identification speed, and reduces the performance consumption of application identification as a whole.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data flow identification method and an export device. Background technique [0002] With the development of the network, most companies or network application places seldom use a single line as the export. If there are multiple lines, it means that there are quality problems among the lines. For example, the quality of optical fiber lines is better than that of ADSL lines. The following scenarios may occur: [0003] A certain company has two lines, the main optical fiber and the ADSL line. It is hoped that video conferencing, company OA, web page access, etc. will use the main optical fiber, and other services will use ADSL; [0004] In a certain Internet cafe, the main optical fiber is small (because it is expensive), and there are multiple ADSLs (cheap). I hope that only the game will use the main optical fiber, and the others will use ADSL; [0005] The server of...

AI Technical Summary

Problems solved by technology

However, the recognition efficiency of these two methods is generally low, the first packet recognition rate is low, and a large amount of CPU is required to process, and the performance is likely to become a bottleneck

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