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Method and device for sending video surveillance service messages in link aggregation network

A technology of video surveillance and link aggregation, applied in the field of communication, can solve the problems of inability to watch the picture, the quality of the live picture is reduced, and the single port is congested, so as to avoid the effect of reducing the picture quality.

Active Publication Date: 2013-01-09
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] If the traditional tail drop technology is used, single-port congestion has already occurred, and packet loss cannot be avoided
If the random early detection mechanism is used, random discarding of monitoring packets before congestion occurs can avoid congestion, but the quality of live images flowing through the port will be reduced, and even the images cannot be viewed.

Method used

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  • Method and device for sending video surveillance service messages in link aggregation network
  • Method and device for sending video surveillance service messages in link aggregation network
  • Method and device for sending video surveillance service messages in link aggregation network

Examples

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Embodiment Construction

[0042] The core idea of ​​the present invention is: the message forwarding device sets the idle cache corresponding to the aggregation link; when the average queue length of the member port of the aggregation link exceeds the packet loss lower limit, the message forwarding device discards the message to be discarded to Idle cache: The packet forwarding device puts the packets stored in the idle cache into the cache queue of the member port of the aggregation link whose average queue length does not reach the lower limit of packet loss according to the preset policy.

[0043] The present invention provides a method for sending video surveillance service messages in a link aggregation network, which is applied to such as figure 1 In the message forwarding device shown in S1, S1 is set with an aggregation link, and the member ports of the aggregation link include P1, P2 and P3, and the monitoring messages received from the camera device are sent to the monitoring client through P1...

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Abstract

The invention discloses a method and device for sending video surveillance service messages in a link aggregation network, and the method comprises: when the average queue length of a member port exceeds the lower limit of packet loss, a message forwarding device is used for randomly discarding the surveillance messages of a buffer queue, which reach the member port subsequently, to an idle buffer; and the message forwarding device is further used for placing the surveillance messages stored in the idle buffer into the buffer queues of the member ports with the average queue length which doesnot reach the lower limit of the packet loss for forwarding. In the invention, when the traffic of one member port in an aggregated link is greater, the load balancing is carried out through other member ports, thereby effectively avoiding the problem that the quality of live pictures is reduced due to loss of the messages.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and equipment for sending video surveillance service messages in a link aggregation network. Background technique [0002] Video surveillance is a very important part of security. After several years of continuous advancement of the national "Safe City" project, video surveillance has been valued by all walks of life, and video surveillance technology has also made considerable progress with the wide application and in-depth development. rapid development. [0003] A monitoring system usually includes a camera device, a message forwarding device, and a monitoring client. The monitoring message sent by the camera device is sent to the monitoring client through the message forwarding device. Due to the traffic load sharing function of link aggregation, link aggregation is often used in the prior art to transmit monitoring service packets. Link aggregation is the combination of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/823H04L12/861H04N7/18H04L47/32
Inventor 顾雷雷王军林鹏程孙策陈乾业
Owner ZHEJIANG UNIVIEW TECH CO LTD
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