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traffic management method

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

Active Publication Date: 2019-01-29
NO 32 RES INST OF CHINA ELECTRONICS TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 (weighted deficit round robin 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, t...

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Abstract

The invention provides a traffic management method, including step 1: setting priority parameters according to the business conditions in the queue; step 2: assigning data frames to queues of different numbers according to the service type corresponding to the data frame, and generating an independent queue for each queue. algorithm; step 3: determine the value of the guaranteed weight parameter and the value of the excess weight parameter in all queues that need to be scheduled, and then perform corresponding operations; step 4: the frame that is scheduled from the queue is based on the Configurations are put into different priority queues until called out. The method provided by the invention can not only avoid the starvation phenomenon of the absolute priority algorithm, but also can make up for the shortcoming that the weight value of the WFQ algorithm cannot be changed so that queue scheduling cannot be performed according to specific conditions, and the priority service quality is improved.

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 Patents(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