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Improved multi-joint and multi-path transmission method

A transmission method and multi-path technology, applied in the field of computer networks

Inactive Publication Date: 2010-06-02
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And it can solve the problem of path failure in the process of data transmission and switch the transmission path in time

Method used

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  • Improved multi-joint and multi-path transmission method
  • Improved multi-joint and multi-path transmission method
  • Improved multi-joint and multi-path transmission method

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Embodiment Construction

[0032]Compared with the traditional SCTP protocol, the data transmission mechanism of the new transmission method is based on the path, that is, each effective path between the source and the destination has an independent data transmission mechanism. In the SCTP protocol, each data packet header has a TSN identification number, and the order of the received data packets is determined according to the size of the TSN number. This is no problem in traditional single-path transmission, but in multi-path transmission, due to the differences in bandwidth, delay, and packet loss rate of each path, the data packets sent by the sender in sequence cannot be transmitted in sequence. is received by the receiving end, so that the TSN growth mechanism of the receiving end cannot grow normally, and the retransmission process is frequently started, which greatly reduces the transmission efficiency. In the new transmission method suitable for multi-connection and multi-path, a path-based PSN...

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Abstract

The invention relates to an improved multi-joint and multi-path transmission method, which comprises the following steps that: a host machine A is connected with a host machine B on the network through two network ports, application data to be transmitted between the host machine A and the host machine B are divided into a plurality of logically-independent data streams; each data stream between the host machine A and the host machine B is bound on a specific path to be transmitted; when continuous congestion packet loss and fault paths do not happen, path switching of the data stream transmission is not allowed; when the continuous congestion packet loss and the fault paths happen, a transmitting terminal starts switching mechanism of the path, and all the data on the fault paths are transferred to new paths to be transmitted; and the host machine A detects the new available paths and deletes the old fault paths, and transmits dynamic addresses to the hose machine B to add and delete the data blocks so as to dynamically add the new paths and delete the old paths. The method is used for establishing and realizing multi-joint and multi-path data transmission.

Description

technical field [0001] The invention relates to the technical field of computer networks, and is an improved transmission method applicable to multiple connections and multiple paths. The present invention is a stream control transmission protocol (Stream Control Transmission Protocol, hereinafter referred to as SCTP), which is used to establish and realize multi-connection and multi-path data transmission. Background technique [0002] In recent years, many research institutions have been studying how to improve the TCP protocol to make full use of multi-path routing for data transmission. Representative protocols include parallel TCP, cmp TCP, etc. However, there are obvious problems in applying the TCP protocol to multi-path transmission. The TCP protocol itself does not consider the support for multi-path routing, and it is difficult to expand multi-path routing. At the same time, the TCP protocol does not support multi-flow and multi-path Good support from hometown et...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 秦雅娟王博张宏科熊轲李世勇罗洪斌董平张思东
Owner BEIJING JIAOTONG UNIV
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