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Identification method and device for protocol type

A protocol type and identification method technology, applied in the field of protocol type identification methods and devices, can solve the problems of not using data flow correlation, unable to realize business control, and low data flow identification performance.

Active Publication Date: 2014-07-09
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the flow-based identification method is: the flow-based identification method realizes identification and protocol classification by scanning the message content in the data flow within the range of each flow, and does not take advantage of the correlation between data flows. The performance of data flow identification is low and precise business control based on user units cannot be realized

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  • Identification method and device for protocol type
  • Identification method and device for protocol type
  • Identification method and device for protocol type

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Embodiment Construction

[0062] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0063] The method for identifying the protocol type provided by the embodiment of the present invention can be used as a new protocol identification method in practical application in business scenarios such as network optimization and application flow control. When a network device, such as a service gateway, router, etc., receives a data message for a newly created connection, it can analyze the protocol type of the service data message based on the user multidimensional information table, so that the embodiment of the present invention can realize user-based Service control, combining the two methods of protocol type identification based on user multi-dimensional information and protocol type identification based on data flow, can improve the identification accuracy of the DPI system and improve the performance of pr...

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Abstract

The invention relates to an identification method and device for a protocol type. The method comprises the steps of obtaining a data message transmitted through the connection built between a user terminal and a server; searching a multi-dimensional user information table for multi-dimensional user information corresponding to the user terminal, wherein the multifunctional user information is used for showing information of all connections currently built by the user terminal; if the multi-dimensional user information corresponding to the user terminal is found, conducting protocol type identification based on the multi-dimensional user information on the connection where the data message exists according to the information of all the connections currently built by the user terminal, wherein the information is identified by the obtained multi-dimensional user information; if the multi-dimensional user information corresponding to the user terminal is not found, conducting protocol type identification based on a data flow on the connection where the data message exists according to message features of the data message. According to the identification method and device for the protocol type, protocol identification based on the multi-dimensional user information is achieved, and then service control based on the user is achieved.

Description

technical field [0001] The invention relates to network traffic management technology, in particular to a protocol type identification method and device. Background technique [0002] Deep Packet Inspection (DPI) technology can deeply analyze the message to identify the message, DPI in addition to the content of the message L2 (data link layer), L3 (network layer), L4 (transport layer) In addition to the analysis, the analysis of L7 (application layer) content is also added, which can identify various real applications and their content, and then be used in application scenarios such as network optimization and flow control. [0003] Under the existing technology, DPI usually identifies packets based on data flow, that is, DPI processes a single data flow as an object. After searching the data flow through the flow table, various identification methods are used, such as feature recognition and port classification. , statistical methods, etc., scan the packets in the data fl...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/06
CPCH04L69/16H04L67/02H04L67/303H04L69/22H04L67/535H04L9/40H04L67/01H04L47/2483
Inventor 潘能毅
Owner HUAWEI TECH CO LTD
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