Multi-stage hierarchical bandwidth management method

A bandwidth management and hierarchical technology, applied in digital transmission systems, electrical components, transmission systems, etc., to achieve the effects of convenient network management configuration, saving hardware costs, and simple bandwidth allocation algorithms

Active Publication Date: 2014-04-30
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to solve the existing problems of hierarchical bandwidth management through hardware, high equipment cost, inflexible upgrade and application

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Embodiment Construction

[0023] The present invention will be described in detail below by taking the L2VPN dual-pipe service model as an example.

[0024] figure 1 It is a schematic diagram of the L2VPN dual-pipe business model and bandwidth allocation. The input packets of the three users correspond to flow1, flow2, and flow3 respectively. CIR=10Mbps and PIR=50Mbps are allocated to each user. This level realizes traffic shaping of the user's small pipe (traffic shaping); three users are multiplexed into VP0 (VP, virtual port, virtual port), and the bandwidth of VP0 is fixed at PIR=50Mbps. This level realizes traffic shaping of large pipes.

[0025] The focus of the present invention is to implement hierarchical bandwidth management to service nodes at all levels. As we all know, three algorithms, srTCM, trTCM and MEF, can be used for traffic evaluation, the srTCM (A Single Rate Three Color Marker) algorithm suggested by RFC2697 and the algorithm proposed by RFC2698 Both the trTCM (A Two Rate Three ...

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Abstract

The invention discloses a multi-stage hierarchical bandwidth management method, which comprises the following steps of: A10, configuring CIR (Committed Information Rate) and PIR (peak Information Rate) (or EIR (Excess Information Rate)) of each stage of scheduling node according to a business model, wherein the CIR of the node is set according to the bandwidth purchased by a user in the first stage, the bandwidth distribution principle of each node from the second stage of scheduling is shown in the description, EIRni=PIRni-CIRni, and n is not less than 2; and A20, respectively marking messages as green, yellow or red by using MEF (Managed Extensibility Framework), RFC2697 (Request for Comments 2697) or RFC2698 algorithms in the first stage, configuring each node into a color sensitive mode and a coupling mode from the second stage, and shaping the traffic according to the MEF algorithm. By using the invention, the multi-stage hierarchical bandwidth management is realized on an exchanging chip supporting the MEF Traffic Shaping algorithm without need of special ASIC (Application Specific Integrated Circuits) or hardware; and the requirements are satisfied through updating software under the situation of changing or updating the business so that considerable hardware cost is saved; and the bandwidth distribution algorithm of the hierarchical business model is simple and convenient for web masters to configure.

Description

technical field [0001] The invention relates to network bandwidth management, in particular to a multi-level hierarchical bandwidth management method. Background technique [0002] Network development is changing with each passing day. With the continuous emergence of new applications on the IP network, new requirements are placed on the service quality of the IP network. For example, real-time services such as VoIP have higher requirements on the transmission delay of packets. If the delay is too long, it will be unacceptable to users (relatively speaking, E-Mail and FTP services are not sensitive to time delay). In order to support voice, video and data services with different service requirements, differentiate them, and provide corresponding services, QoS (Quality of Service) technology is widely used. QoS technology mainly adopts srTCM (srTCM) recommended by RFC2697 A Single Rate Three Color Marker) algorithm and the trTCM (A Two Rate Three Color Marker) algorithm sugg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L47/22H04L47/76
Inventor 周万涛徐剑辉饶冀
Owner FENGHUO COMM SCI & TECH CO LTD
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