Congestion control method and device

A technology of congestion control and congestion point, applied in the field of network communication, it can solve the problems of low priority transmission rate, inability to achieve fast forwarding, and reduction of reaction points, etc.

Active Publication Date: 2015-08-12
NEW H3C TECH CO LTD
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  • Abstract
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Problems solved by technology

[0003] However, the function of QCN is only to reduce the sending rate of the reaction point (Reaction Point, RP). The packet forwarding rate in the congestion point device (Congestion Point, CP), so it can only be used for some low-priority business traffic that does not require a high transmission rate, but for those temporary emergency business traffic, such as for For some temporary and urgent installer downloads, the effect of fast forwarding cannot be achieved

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  • Congestion control method and device
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[0030] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0031] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as use...

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Abstract

The invention provides a congestion control method and a device; the method comprises the following steps: detecting whether an output port queue with enabled quantification congestion notification has congestion or not; determining whether a first message of the output port queue carries an emergency label or not when the output port queue has congestion, wherein the emergency label represents a present business is emergent; increasing forwarding amount of the first message when the first message carries the emergency label. The method and device can realize fast forwarding of the message matched with the emergency business from a congestion point device to a data flow terminal.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a congestion control method and device. Background technique [0002] Quantized Congestion Notification (Quantized Congestion Notification, QCN) is a set of end-to-end congestion notification mechanism applied to the second layer. Through active reverse notification, it reduces the packet loss rate and delay in the network, thereby improving network performance. [0003] However, the function of QCN is only to reduce the sending rate of the reaction point (Reaction Point, RP). The packet forwarding rate in the congestion point device (Congestion Point, CP), so it can only be used for some low-priority business traffic that does not require a high transmission rate, but for those temporary emergency business traffic, such as for For some temporary and urgent installer downloads, the effect of fast forwarding cannot be achieved. Contents of the invention ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801
CPCH04L47/11H04L47/12
Inventor 戎衍博熊志鑫
Owner NEW H3C TECH CO LTD
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