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Explicit congestion control method improved on the basis of conventional transmission control protocol

A transmission control protocol and congestion control technology, applied in transmission systems, digital transmission systems, electrical components, etc., to solve problems such as increasing overhead

Inactive Publication Date: 2014-09-10
JIANGSU DATATECH INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while improving the effectiveness of network congestion judgment, too many intermediate nodes participating in the congestion detection process will definitely increase the overall overhead

Method used

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  • Explicit congestion control method improved on the basis of conventional transmission control protocol
  • Explicit congestion control method improved on the basis of conventional transmission control protocol

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Use the two bits of the IP header based on the explicit congestion notification (ECN) field to reflect the current network congestion status information, so that the source can execute different congestion control algorithms in real time according to different situations. In the implementation, only IP The existing ECN in the packet header does not need to modify the IP packet structure for explicit feedback. Feedback the load status of the current network through the router, and divide the load status of the network into four categories: mild non-congestion, severe non-congestion, mild congestion, and severe congestion. The source adjusts the size of the sending window according to the received load status flag to control the sending rate. The steps are: first initialize the router, and specify three queue lengths, Q min , Q avgg , Q max ; Calculate the ave...

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Abstract

The invention discloses an explicit congestion control method improved on the basis of a conventional transmission control protocol. With rapid development of a network, network traffic increases sharply year by year with a consequent problem of increasingly serious congestion. The method is put forward on the basis of the conventional transmission control protocol. The current network congestion state is reflected by utilizing an IP header explicit mark performed by a router node. Data transmission rate adjustment can be performed in real time by a source end according to a message. Utilization rate and stability of available bandwidth in the network can be effectively enhanced.

Description

technical field [0001] The invention belongs to the technical field of information network communication and relates to an explicit congestion control method. Background technique [0002] With the rapid development of computer network technology, the number of Internet users continues to increase, and the data traffic on the network also increases sharply year by year. At the same time, it has also brought about increasingly serious network congestion problems. Researching and designing a more reasonable network congestion mechanism is a powerful guarantee for improving user quality, ensuring network stability, and improving network robustness. Therefore, network congestion has become a hot issue in current network research. [0003] There is a reason for network congestion—the resources required by users exceed the existing resource capacity and processing capabilities of the network. Existing network resources are limited, and user demands are constantly changing, so co...

Claims

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Application Information

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IPC IPC(8): H04L12/807H04L47/27
Inventor 洪智
Owner JIANGSU DATATECH INFORMATION TECH