Transmission control method for multimedia data in network equipment

A technology for multimedia data and network equipment, applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve the problems of output ports preempting cache, unable to respond in time, unable to adapt to network scenarios, etc., to improve transmission quality and improve transmission. performance, the effect of ensuring transmission quality

Active Publication Date: 2011-10-19
武汉长江计算科技有限公司
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Problems solved by technology

[0010] However, the two mechanisms of global control and queue control are essential. If only the global threshold is set, it is easy to cause a certain output port to preempt a large number of caches, and the fairness of the devic

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  • Transmission control method for multimedia data in network equipment

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Embodiment Construction

[0030] The method of the present invention will be further described in detail below in conjunction with the drawings and the embodiments of the present invention.

[0031] The basic idea of ​​the present invention is: by adopting a dual dynamic threshold scheduling mechanism, starting from the global threshold and port queue threshold, that is, the dual dynamic threshold, the global and queue data buffers are scheduled and controlled to ensure and control multimedia network transmission delay and packet loss rate. The dynamic threshold scheduling mechanism is a dual dynamic threshold control based on the transmission level in voice quality measurement, which is adjusted and set simultaneously from the two aspects of the global threshold and the port threshold. Among them, the global threshold control is used to judge different transmission scenarios; the queue threshold control is used to divide and adjust the threshold based on the transmission level parameters in the voice qua...

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Abstract

The invention discloses a transmission control method for multimedia data in network equipment. In the transmission control method, the buffer memory of exchange equipment is effectively managed; the buffer management of the exchange equipment is divided into a global control part and a queue control part by combining the sensitive characteristics of multimedia data to time delay and packet loss rate and utilizing dynamic threshold control of the transmission level based on voice quality measurement; in the global control part, the threshold is controlled by judging different transmission scenes to guarantee the transmission property under different transmission scenes; in the queue control part, the threshold is divided and regulated based on the transmission level parameters in the voice quality measurement to guarantee the transmission quality of multimedia; and in the dynamic regulation of the threshold, the regulation is performed by adopting a method for controlling according to proportions, and the network multimedia transmission quality is improved by effectively controlling the buffer resources of the exchange equipment.

Description

Technical field [0001] The invention relates to network multimedia communication technology, in particular to a method for controlling multimedia data transmission in network equipment. Background technique [0002] With the development of communication technology and the growth of Internet transmission capacity, the application of real-time multimedia technology has been applied more and more in the past few years. However, the application of real-time multimedia technology requires the introduction of business guarantee. The existing methods to achieve business guarantee mainly include There are two kinds of switching equipment scheduling and buffer management. In the switching device scheduling mode, the scheduler controls the transmission resources; in the buffer management mode, the storage resources are mainly controlled. For the quality of service of real-time multimedia services, the way of buffer management is more important. [0003] Data transmission in a switching dev...

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L45/28
Inventor 汪学舜郭太祺
Owner 武汉长江计算科技有限公司
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