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Message service type identifying method and message service type identifying device based on data processing installation (DPI)

A business type and message technology, applied in the computer field, can solve problems such as unrecognizable non-public protocol messages

Active Publication Date: 2013-04-03
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0006] The present invention provides a DPI-based message service type identification method and device to solve the problem that the traditional DPI technology in the prior art cannot identify non-public protocol messages

Method used

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  • Message service type identifying method and message service type identifying device based on data processing installation (DPI)
  • Message service type identifying method and message service type identifying device based on data processing installation (DPI)
  • Message service type identifying method and message service type identifying device based on data processing installation (DPI)

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Embodiment Construction

[0020] In order to solve the problem that the traditional DPI technology in the prior art cannot identify non-public protocol messages, the present invention provides a method and device for identifying message service types based on DPI. In the technical solution of the embodiment of the present invention, according to the protocol Based on the identified session, the session record table and one or more N-group correlators (that is, the correlator record table) are dynamically set. When the subsequent message of the protocol session enters the DPI system , according to the query results of the session record table and N groups of correlators, the business type of the current session can be identified quickly, efficiently and accurately. That is to say, through the identification and matching of a very small part of the data flow of the non-public protocol (private protocol and encryption protocol), set the session record table related to the user, as well as the quintuple cor...

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Abstract

The invention discloses a message service type identifying method and a message service type identifying device based on a data processing installation (DPI). The method comprises the following steps of 1. matching session information of service messages with session records in a session record chart; acquiring the corresponding service types from the session record chart if the session information is successfully matched with certain one of the session records; executing a step 2 if the corresponding service types cannot be acquired from the session record chart; and building the corresponding session records in the session record chart if the session information is not successfully matched with certain one of the session records and executing the step 2; 2. matching the session information of the service message with relevant records in a relevant record chart; acquiring the service types corresponding to the relevant records from the relevant record chart if the session information is successfully matched with certain one of the relevant records; and executing a step 3 if the session information is not matched with certain one of the relevant records; and 3, performing deep load analysis on the session information of the service message to acquire the service types of the service messages.

Description

technical field [0001] The present invention relates to the field of computers, in particular to a message service type identification method and device based on Deep Packet Inspection (DPI for short). Background technique [0002] Currently, in Internet (Internet) services, services are based on Transmission Control Protocol / Internet Protocol (Transmission Control Protocol / Internet Protocol, TCP / IP for short). The traditional business identification method is based on the combination of the source address, destination address and protocol type of the Internet Protocol (Internet Protocol, referred to as IP) at the network layer and the source port and destination port of the transport layer, including Transmission Control Protocol (Transmission Control Protocol). Control Protocol, referred to as TCP) or User Datagram Protocol (User Datagram Protocol, referred to as UDP). For example, a TCP stream with a destination port of 80 in a session can be considered as HyperText Tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/08
Inventor 汪长勤孙宏跃李华光宋科
Owner ZTE CORP
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