Flow management method

A traffic management and traffic technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as adjustment, service traffic conditions, starvation, etc., to avoid starvation, improve priority service quality, and increase bandwidth. The effect of utilization

Active Publication Date: 2016-05-11
NO 32 RES INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Because PQ may starve to death for low-priority packets; the more commonly used WFQ algorithm can provide services with different priorities according to the configured weights, but it cannot adjust the service in real time according to the traffic conditions of each queue.

Method used

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Embodiment Construction

[0068]The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0069] Specifically, such as figure 1 As shown, it is divided into several queues, which are used to represent different types of services, and are uniformly scheduled by WDRR (weighteddeficitroundrobin weighted difference round-robin algorithm), and the priority parameters are set according to the business conditions. The priority parameters are as follows:

[0070] Wc represents the guaranteed weight, which is a positive integer. When the traffic of a certain queue is at the guaranteed rate, the ...

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Abstract

The invention discloses a flow management method, comprising steps of setting a priority parameter according to the business condition in the queue, distributing data frames to the queues of various numbers according to the service types corresponding to the data, establishing an independent algorithm for each queue, executing the corresponding operation after determining the values of weight determining parameter and overquato weight parameter in the queue needed to be scheduled, and placing the frame which is dispatched from the queue into the queues with various priorities to wait to be dispatched. The invention can avoid the algorithm starvation phenomenon of the absolute priority algorithm, can compensate the fact that the weight value of the WFQ algorithm cannot be changed and the queue dispatching cannot be performed according to the practical condition, and improves the priority service quality.

Description

technical field [0001] The invention relates to the technical field of digital communication, in particular to an algorithm of a flow management module in a network processor, aiming at the queuing problem of different priority queues. Background technique [0002] Early networks only provided best-effort services, and all service flows (video, images, or data) entering the network were served in a first-come, first-served manner. Constrained pure data services (such as FTP and E-mail transmission). However, the subsequent integrated digital network provides new applications including not only text data information, but also multimedia information such as voice, graphics, images, videos, animations, etc., so new requirements are put forward for the network, such as distributed multimedia applications, not only There are high bandwidth requirements on the network, and information transmission is required to be low-latency and low-jitter. At the same time, most of these appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/813H04L12/863H04L47/20
CPCH04L47/20H04L47/50
Inventor 卢珊李苗周治国
Owner NO 32 RES INST OF CHINA ELECTRONICS TECH GRP
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