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Method and system for network congestion management

A network congestion and network technology, applied in the field of data communication, can solve the problems of wasting network bandwidth and reducing data transmission rate, and achieve the effect of reducing bandwidth loss and waste and maximizing network bandwidth utilization.

Active Publication Date: 2009-11-18
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and system for network congestion management, which aims to solve the problem of wasting a large amount of network bandwidth when the data transmission rate is reduced when the network is congested in network congestion management without self-recovery in the prior art

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  • Method and system for network congestion management
  • Method and system for network congestion management
  • Method and system for network congestion management

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Embodiment Construction

[0024] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0025] In the embodiment of the present invention, when the core network entity detects that the network is congested, it sends congestion notification information to the upstream network entity; when the upstream network entity receives the congestion notification information, the data transmission rate is reduced; and a certain amount of data is sent at a certain time or After the data packet, the upstream network entity increases the data transmission rate. Therefore, after the congestion is lifted, the upstream network entity increases the data transmission rate, reducing the waste of bandw...

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Abstract

The invention is applicable to the field of data communication and provides a method and a system for network congestion management. The network comprises a core network entity with a congestion detection function and an upstream network entity capable of responding to congestion notification information. The invention is characterized in that the method comprises the following steps: the core network entity sends the congestion notification information to the upstream network entity when detecting the congestion situation; the upstream network entity reduces the data transmission rate by a certain step value according to the received congestion message information and resets a timer or a counter for counting the number of data packets; and the timer or the counter triggers the upstream network entity to enter a rate recovery stage when overflows. When the timer or the counter overflows, the upstream network entity increases the data transmission rate and reduces the waste of the network bandwidth.

Description

Technical field [0001] The invention belongs to the field of data communication, and in particular relates to a method and system for network congestion management. Background technique [0002] With the rapid development of Internet technology, the traffic of data services in the network is increasing, which has caused the problem of network congestion to become increasingly prominent. At the same time, users' requirements for network performance are getting higher and higher. The Ethernet of massive data transmission is facing a severe challenge of how to realize high-speed, low-latency packet forwarding. [0003] At present, there are many congestion management and flow control technologies used to solve network congestion problems. Such as: 802.3x (IEEE link layer flow control standard), RED (Random Early Detection) and ECN (Explicit Congestion Notification, display congestion indication) and so on. Among these technical solutions, the congestion management mechanism with the...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/26H04L1/00H04L47/30
CPCH04L41/0896H04L47/28H04L47/115H04L47/11Y02B60/31H04L47/263Y02D30/50H04L47/38
Inventor 宋晓丽
Owner ZTE CORP
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