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Method and system for carrying out data transmission by means of multicast

A data transmission method and broadcasting system technology, applied in the direction of digital transmission system, transmission system, data exchange details, etc., can solve problems such as network load increase, reduce load, reduce construction cost and subsequent maintenance cost, and reduce transmission data packets volume effect

Inactive Publication Date: 2006-01-18
QUANTA COMPUTER INC
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  • Claims
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AI Technical Summary

Problems solved by technology

[0007] Therefore, there is a need for an improved multi-target broadcast system data transmission method. When the user machine requests the server to download the same data at different times, the server will not repeatedly send the same data packet, causing the network load to increase.

Method used

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  • Method and system for carrying out data transmission by means of multicast
  • Method and system for carrying out data transmission by means of multicast
  • Method and system for carrying out data transmission by means of multicast

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Embodiment Construction

[0030] figure 2 It shows the flow chart of the multi-target broadcasting system data transmission method according to the present invention. The multi-target broadcast system includes a server for sending data sequences, a switch supporting multi-target broadcast groups, and multiple client machines. When the user machine intends to download the data sequence from the server, it joins the multi-objective broadcast group that it wants to receive data, so as to receive the data sequence forwarded by the switch.

[0031] According to the data transmission method of the present invention, first, the server generates a multi-target broadcast group required for multi-target broadcast data transmission (step 202). Next, the server sequentially and repeatedly sends a plurality of data packets constituting the data sequence (step 204 ). That is, the server repeatedly sends the data packets of the data sequence in a cyclic manner.

[0032] Subsequently, when a user machine at a time...

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Abstract

This invention relates to a data transmitting method of a multiply object broadcasting system. The multiply object broadcasting system comprises a server, an exchanger supporting multiply object broadcasting group and several user machines; the user machine joins to a multiply object broadcasting group to receive the data sequence transmitted by the exchanger. The method comprises: a) the server will send several data pack repeatedly; b) when a user machine will receive the data sequence, joining to that multiply broadcasting group to receive the data pack from the exchanger; c) the user will receive and record the data pack from the server from that moment, generating a receive recording; d) stopping receiving the data pack according to the receive record until received all data pack.

Description

technical field [0001] The present invention relates to a data transmission method, and more particularly, to a multicast data transmission method. Background technique [0002] When the multi-objective broadcasting method is used for data transmission between the server and the client, if different client machines request to download the same data from the server, they join a multi-objective broadcasting group through a switch. The data sent by the server is forwarded to the user machines joining the multi-target broadcast group through the switch, and all the user machines joining the multi-target broadcast group can receive the same data. [0003] However, the data transmission in the multi-target broadcast mode is only limited to when the client machines in the same multi-target broadcast group all request the server to download the same data at the same time. If at a different time later, another user machine wants to request the server to download the same data, it ca...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/18
Inventor 徐顺隆符和贵
Owner QUANTA COMPUTER INC
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