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Method of identifing VOIP flow based on SIP protocol process performance

A SIP protocol and feature recognition technology, applied in the baseband system, transmission control/equalization, communication between multiple stations, etc., can solve the problem of not meeting the needs of fine-grained business differentiation, and not suitable for the duration of SIP data flow Acquisition and other issues to achieve the effect of high recognition rate

Inactive Publication Date: 2009-03-04
G CLOUD TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

These make it impossible for the existing coarse-grained classification methods to meet the requirements of fine-grained service differentiation if QoS guarantee is provided for specific VoIP services.
[0008] In addition, because in the VoIP conversation system, the SIP data flow does not exist from the beginning to the end. Generally speaking, it is generated because the SIP control flow is specified in its payload, so traditional methods such as port identification are not suitable. For further acquisition of parameters such as the duration of the SIP data stream

Method used

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  • Method of identifing VOIP flow based on SIP protocol process performance
  • Method of identifing VOIP flow based on SIP protocol process performance

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[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0046] Such as figure 1 as shown, figure 1 The flow chart of realizing the overall technical scheme of identifying VoIP traffic based on the SIP protocol process feature provided by the present invention, the method comprises the following steps:

[0047] Step 101: establish the identification rules for the request message and the response message of the SIP protocol through keyword matching, and identify the data packets related to the control session in the SIP protocol;

[0048] Step 102: By analyzing the keyword features in the data packets related to the control session, extract the judgment information of the dynamic session flow to be generated, identify the data packets related to the dynamic session in the voice...

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Abstract

This invention discloses a method for identifying VOIP flows based on the SIP protocol process character including: A, identifying the data packet in the SIP control session by matching key words and setting up identifying rule to required messages and response messages, B, analyzing the character of key words determined in the data packet relating to control session to pick up the judgement information of the being generated dynamic session flow to identify the data packets relating to the dynamic session in the phone session process to realize the complete idenfication of VOIP flow based on the SIP.

Description

technical field [0001] The present invention relates to the technical fields of computer network traffic monitoring, traffic shaping, traffic control, network quality of service (QoS) and network performance analysis, and in particular to a VoIP (Voice Over Internet Protocol, VoIP) process feature recognition based on Session Initiation Protocol (SIP). Or Internet telephony protocol, which refers to the transmission of voice signals in the form of data packets in the IP network environment after compressing and packetizing the analog sound signal. Generally speaking, it is Internet telephony, Internet telephony or IP telephony for short. meaning) flow method. Background technique [0002] Application layer traffic identification is one of the important prerequisites for analyzing the traffic composition, distribution, and changing rules of various application layer services carried by the network, understanding service performance, locating network bottlenecks, and ensuring ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/06H04L12/26H04L12/56G06F17/30H04N7/173G06F11/10G06F15/00G06F21/24G09C1/00G11B20/10G11B20/14G11B20/18G11B20/22H03L7/091H03M13/03H03M13/13H03M13/23H03M13/29H04B1/707H04B7/005H04B7/24H04B7/26H04B14/00H04H60/72H04J13/00H04J13/16H04L1/00H04L9/08H04L9/10H04L9/32H04L25/03H04L25/497H04L47/20H04M1/66H04M1/72415H04N7/26H04N7/52H04W4/06H04W4/12H04W4/14H04W8/02H04W8/16H04W8/20H04W8/24H04W8/26H04W12/06H04W12/10H04W24/00H04W40/22H04W72/04H04W76/02H04W80/06H04W84/12H04W88/02
CPCH03M13/6362H04N19/00151H04L1/0066H04L9/304H04L63/126H04M1/72533H04W4/14Y10S370/906G06F21/74H04W8/26H04L25/03038H04B10/25754H03M13/6356H03M13/2903H03L7/091H04N19/00951G11B20/22G06F2221/2115G06F21/6209H04N19/00812H03M7/4006H04N19/00036H04L25/497H03M13/2993H04L9/085H04L65/1043H04W88/085H04L51/04H04W12/10H04J13/0077H04L51/38Y10S370/907H04J13/16G06F2221/2105G11B20/10009H04W72/042H04M3/42221H03M13/23G06F21/305G06F21/88H04B7/2628H04W52/30G11B20/10425H04W4/12H04L51/28H04W8/245H04L65/1006H04M7/1295H04L1/0068H04W76/022H04L65/1016H04N19/139H04N19/109H04N19/91H04N19/625H04W76/12H04M1/72415H04L51/48H04L51/58H04L65/1104H04W72/23
Inventor 陈敏张广兴李士达杨建华谢高岗
Owner G CLOUD TECH
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