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Band wide redistribution method for band width changing link layering sharing and management zone

A management domain, redistribution technology, applied in digital transmission systems, electrical components, error prevention, etc., can solve problems such as crowding bandwidth, structural damage to link sharing bandwidth ratio, etc., and achieve the effect of satisfying service quality requirements

Inactive Publication Date: 2006-06-14
杭州九麒科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since CBQ uses a priority-based packet scheduling mechanism, when the bandwidth drops, the estimator still calculates the overrun according to the original bandwidth, so that the high-priority will occupy the low-priority allocated bandwidth, and the original link shares The bandwidth scale structure is broken

Method used

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  • Band wide redistribution method for band width changing link layering sharing and management zone
  • Band wide redistribution method for band width changing link layering sharing and management zone
  • Band wide redistribution method for band width changing link layering sharing and management zone

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Experimental program
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Embodiment Construction

[0069] figure 1The link bandwidth is first shared among different organizations, and each organization further divides its bandwidth into different traffic types and data flows.

[0070] figure 2 It is a schematic diagram of the constituent modules of CBQ, which includes a classifier, a buffer queue, a regular scheduler, a traffic estimator and a link sharing scheduler.

[0071] image 3 It is a schematic diagram of a link sharing method suitable for bandwidth changes. The method is to estimate the queue length of the output cache and its changes according to the dequeue rate of the package in the output cache; the specific method is to calculate the dequeue rate of the package when the package leaves the cache queue, and use EWMA to calculate the dequeue rate of the package Estimate, when the packet arrives at the queue of the output buffer, calculate the change rate of the queue length, and multiply the change rate by the set coefficient plus the current downlink rate as...

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Abstract

This invention relates to a method for carrying out hierarchy management to variable bandwidth links in the network, which outputs the outgoing rate of a buffer measurement packet and the length of the buffer queue to compute the current actual effective bandwidth and informs a dispatcher to adjust the outbound rate based on said effective bandwidth so as to control the length in a certain sphere and adjust the proportion of various bandwidths of a hierarchy shared tree to meet the needs of service quality of users.

Description

technical field [0001] The invention relates to the technical field of computer network communication, and is a method for hierarchically managing links with varying bandwidths in the network, and provides service quality assurance for data streams. Background technique [0002] With the continuous development of communication technology, especially the rapid development of IP technology and the Internet, the original network that only transmits one type of data flow, such as the traditional telephone network that only transmits voice, gradually becomes capable of carrying various traffic types of data. Packet-switched network transfer of streams. In order to ensure the service quality requirements of different data streams, it is necessary to allocate and manage the bandwidth of each link in the network. Different requirements for link sharing lead to the need for hierarchical link-sharing. The link sharing structure is a tree structure, the root is the total bandwidth of ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L47/76
Inventor 史立鲁士文
Owner 杭州九麒科技有限公司
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