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Active detection based SIP (session initiation protocol) network overload control system and method

An overload control and active detection technology, applied in the transmission system, electrical components, etc., can solve the problems of consuming server processing resources, server throughput reduction, and consumption, and achieve high responsiveness and high throughput.

Inactive Publication Date: 2012-10-17
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, when using the 503 response to reject a newly received call request, since the rejection of the call request still consumes the processing resources of the server, when a large number of call requests are received, all the resources of the server will be consumed in rejecting the call request, resulting in server failure Throughput drops

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  • Active detection based SIP (session initiation protocol) network overload control system and method
  • Active detection based SIP (session initiation protocol) network overload control system and method
  • Active detection based SIP (session initiation protocol) network overload control system and method

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] see figure 2 , figure 2 The thick solid line of the one-way arrow in the figure represents the data flow, and the thin solid line of the two-way arrow represents the control flow. The SIP network overload control system based on active detection proposed by the present invention is deployed on the edge server of the SIP network, and includes the following four functional modules,

[0049] The measurement module, the function of the measurement module is that after the call reaches the edge server, the measurement module forwards the call to the restriction module; at the same time, it measures the time interval between adjacent calls, and calculates the average time interval between call arrivals and the call arrival time interval according to the set ca...

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Abstract

The invention discloses an active detection based SIP (session initiation protocol) network overload control system, wherein the overload control system is arranged on an edge server of an SIP network and comprises four function modules consisting of a measuring module, a limiting module, a detecting module and a control decision module; the measuring module transfers the call to the limiting module after the call reaches the edge server, and then calculates the average call arrival time interval and average call arrival rate; the limiting module limits the arrived call by a call threshold; the detecting module actively detects the SIP load situation by periodically sending SIP messages; and the control decision module periodically executes a rate adaptive method and calculates the call admittance rate. The invention further provides an active detection based SIP network overload control method; SIP network overload is effectively and timely controlled by arranging the overload control system on the edge server and actively detecting the load variation situation of the SIP network.

Description

technical field [0001] The invention relates to a SIP network overload control system and method based on active detection, and belongs to the technical field of computer communication networks, in particular to the technical field of SIP networks. Background technique [0002] In a SIP (Session Initiation Protocol, Session Initiation Protocol) network, when the rate of received messages is greater than the processing capacity, the SIP server will be overloaded. When overload occurs, the throughput rate of the SIP server will be significantly reduced, and the response time will also increase so that it cannot meet the requirements of real-time multimedia calls. In addition, due to the retransmission mechanism in the SIP protocol, when a SIP server is overloaded, the adjacent server cannot receive a response in time after sending the request, which causes the adjacent server to generate a large number of retransmission messages. These retransmission messages not only worsen ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 廖建新王晶李彤红王敬宇王金柱张磊戚琦樊利民
Owner BEIJING UNIV OF POSTS & TELECOMM
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