Data transmission method, device and system

A data transmission and data technology, applied in the field of data transmission, can solve the problems of increased consumption of port resources and system resources, and achieve the effect of saving port resources and system resources

Active Publication Date: 2016-02-17
CHINANETCENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method, device and system for data transmission, to at least solve the problem of port resources and system resources in the process of data transmission caused by the need to monitor multiple data ports in the process of multiple data connections in the related art. technical problems with increased consumption of

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system

Examples

Experimental program
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Embodiment 1

[0022] According to an embodiment of the present invention, a method embodiment of a data transmission method is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0023] figure 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0024] Step S102, receiving the first data packet sent by the client;

[0025] The data transmission method provided by the embodiment of the present application can be applied to the file transfer process of the file transfer protocol (ftp for short).

[0026] Specifically, on the relay server side, when the clien...

Embodiment 2

[0090] According to an embodiment of the present application, an embodiment of an apparatus for implementing the above method embodiment is also provided, image 3 is a schematic structural diagram of a device for data transmission according to an embodiment of the present application. like image 3 As shown, the device includes: a first receiving module 32, a matching module 34, a port redirection module 36, a first encapsulation module 38 and a first sending module 40, wherein,

[0091] The first receiving module 32 is configured to receive the first data packet sent by the client;

[0092] The matching module 34 is used to match whether the port information in the first packet is identical to the pre-stored port information, and the port information includes: client port, client address, server port and server address;

[0093] The port redirection module 36 is used for redirecting the server port to the designated port of the transit server under the same matching result...

Embodiment 3

[0121] According to an embodiment of the present application, a data transmission system is also provided, Figure 8 is a schematic structural diagram of a data transmission system according to an embodiment of the present application. Such as Figure 8 As shown, the system includes: a server 81, a transfer server 82, and a client 83. The server 81 communicates with the client 83 through the transfer server 82, wherein the transfer server 82 is the above-mentioned data transmission device.

[0122] The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

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Abstract

The invention discloses a data transmission method, device and system. The method comprises the steps of receiving a first data packet sent by a client; judging whether port information in the first data packet is identical to pre-stored port information through matching, wherein the port information includes a client port, a client address, a server port and a server address; redirecting the server port to a designated port of a transit server under the condition that the matching result is identical; regarding the client port and the client address in the port information as a source port and a source address and encapsulating the first data packet with the server port and the server address being a destination port and a destination address; sending the encapsulated first data packet to the server through pre-established data connection. The data transmission method, device and system solve the technical problem that in a related technology, consumption of port resources and system resources is increased in the data transmission process because multiple data ports need to be monitored in multiple data connection processes.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method, device and system for data transmission. Background technique [0002] File Transfer Protocol (File Transfer Protocol, referred to as FTP) In the process of data transmission, two connections need to be established between the FTP client and server, namely, a control connection and a data connection, wherein the control connection is used on both sides of the client and the server. Specify the destination transmission port and transmission address, and the data connection is used for data transmission after specifying the destination transmission port and transmission address. When performing remote cross-network FTP file transfers, for example, when transferring files and data between domestic and foreign countries, in order to improve the speed and reliability of file transfers, it is necessary to establish a transfer station and a transfer netwo...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/08
CPCH04L43/0876H04L67/025H04L67/06H04L67/562Y02D30/50
Inventor 洪珂石光辉
Owner CHINANETCENT TECH
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