Multipath cocurrent transmission method based on SCTP (Stream Control Transmission Protocol)

A transmission method and multi-path technology, applied in the field of Internet transmission, can solve problems such as inability to ensure data grouping, achieve sufficient line bandwidth, increase data transmission paths, and achieve the effect of good practical application value

Inactive Publication Date: 2010-09-22
TSINGHUA UNIV
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Problems solved by technology

The present invention implements the code based on the Linux system. Aiming at the problem that the traditional routing system cannot ensure that the data packets can be sent from the physical interface corresponding to the specifie

Method used

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  • Multipath cocurrent transmission method based on SCTP (Stream Control Transmission Protocol)
  • Multipath cocurrent transmission method based on SCTP (Stream Control Transmission Protocol)
  • Multipath cocurrent transmission method based on SCTP (Stream Control Transmission Protocol)

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Embodiment Construction

[0024] The present invention comprises the following steps, described with Client / Server model:

[0025] Step 1. During the SCTP four-step handshake association establishment process, an available path list is established between the communication parties, and the number of available paths is maximized.

[0026] Step 1.1, the client sends an initialization INIT message to a known IP address addr-S0 of the server (specified by the application), and the source address is specified as the IP address list used by the client for this association, the first one with the destination address The local address of the same IP protocol type (IPv4 / IPv6), set as addr-C0'. The INIT message contains the IP protocol type supported by the client and all the client IP addresses of this type (the IP address that can be used can also be specified by the application, and the default is all used below).

[0027] Step 1.2, after the Server end receives the INIT message, it determines the common IP ...

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Abstract

The invention relates to a multipath cocurrent transmission method based on an SCTP (Stream Control Transmission Protocol), relating to data transmission and communication among multiaddress host computers. The method is characterized in that multipath reachable paths are simultaneously utilized to carry out end-to-end data transmission by expanding a main standby path mechanism of the standard SCTP in the same SCTP relationship and adopting certain path detection and path selection strategies; meanwhile, distinguishing from the only correspondence mechanism of the path and the target address in the realization of the traditional SCTP protocol, the invention utilizes a (an original address and a target address) binary unit to define the path together so that the number of the available paths in the relationship to be maximal and the basis for realizing more complex paths is provided; finally, the invention is based on a Linux system to carry out code realization, and the data groups are sent strictly according to the designated original address and the target address under the condition of multiple available paths. The invention efficiently improves the throughput of end-to-end data transmission on the basis of keeping the advantage of strong fault tolerance of the standard SCTP protocol.

Description

technical field [0001] The SCTP-based multi-path concurrent transmission method belongs to the technical field of Internet transmission, and mainly involves data transmission and communication between multi-address hosts. Background technique [0002] In recent years, due to the coexistence of GSM, GPRS, 3G, Wifi, Wimax and other communication technology standards with different technical characteristics and the reduction of the cost of communication modules brought about by large-scale industrial production, smart mobile terminals are developing in the direction of multi-Radio. If the end systems have multiple simultaneously available heterogeneous radios, or multiple Ethernet interfaces, there will be multiple simultaneously available links between the end systems. It is a subject of great research value to study end-to-end multi-path data transmission protocols in heterogeneous networks, so as to effectively utilize various network resources and provide better support for...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L1/16H04L45/74H04L45/741
Inventor 吴茜张文涛阳旺李贺武李风华
Owner TSINGHUA UNIV
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