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Data transmission method, device and system

A technology of a data transmission system and a data transmission method, which is applied in the field of computer communication and can solve problems such as the inability to form an MPTCP link

Inactive Publication Date: 2019-11-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a data transmission method, device and system, which can solve the problem that the MPTCP link may not be formed in the related art

Method used

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

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Embodiment Construction

[0113] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0114] A data transfer system usually includes a client and a destination server. Wherein, the client has multiple ports (ports), and the client can select one of the multiple ports as the source port, and establish a TCP link with the target server through the source port, and then realize the connection with the target server through the TCP link. Single-path data transfer between servers. However, the bandwidth performance between the client and target server is limited by this single path, and this TCP link is not highly available.

[0115] With the rise of mobile Internet communications, clients usually support data transmission over multiple links. For example, the various links may include a TCP link based on LTE technol...

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Abstract

The invention discloses a data transmission method, device and system, and belongs to the field of computer communication. The method comprises the steps that a first target server sends indication information of a first initial server to a client; the client sends a secondary TCP request for establishing a secondary TCP link to a second initial server according to the indication information, wherein the secondary TCP request carries the indication information; when the second initial server is different from the first initial server indicated by the indication information, the second initialserver forwards the second TCP request to the first initial server; the first initial server forwards the secondary TCP request to a first target server; and the first target server sends a response of the secondary TCP request to the client based on the received secondary TCP request. According to the invention, the establishment of the MPTCP link is ensured.

Description

technical field [0001] The present application relates to the field of computer communication, in particular to a data transmission method, device and system. Background technique [0002] With the rise of mobile Internet communications, clients usually support data transmission over multiple links. For example, the various links may include a link based on a long term evolution (long term evolution, LTE) technology, a link based on a wireless fidelity (wirelessfidelity, WIFI) technology, and the like. Therefore, in order to reasonably utilize the various links, a multipath transport control protocol (multipath transport control, MPTCP) that uses multiple paths to transmit data concurrently emerges as the times require. Since the load balance (LB) technology is widely used in communication, MPTCP based on the LB technology also rises accordingly. [0003] In the current MPTCP based on the four-layer LB technology, the data transmission system usually includes: a client, mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04L45/24
CPCH04L69/16H04L63/0807H04L63/06H04L67/1001H04L67/63
Inventor 李俊武申思
Owner HUAWEI TECH CO LTD
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