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System and method for node band width equitable distribution on elastic grouping ring

A flexible packet ring and node technology, applied in transmission systems, digital transmission systems, ring networks, etc., to achieve the effect of reducing sensitivity, good stability and scalability, and improving the ability to resist external interference

Inactive Publication Date: 2008-07-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a method for realizing bandwidth fair distribution by nodes on an elastic packet ring, which can overcome the shortcomings of the existing RPR node bandwidth distribution fair algorithm, and effectively solve the problem of fair bandwidth distribution in the ring network

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  • System and method for node band width equitable distribution on elastic grouping ring
  • System and method for node band width equitable distribution on elastic grouping ring
  • System and method for node band width equitable distribution on elastic grouping ring

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Embodiment Construction

[0036] The method for realizing bandwidth fair distribution by nodes on the elastic packet ring of the present invention comprises the following steps:

[0037] Nodes on the RPR count the number of service flows arriving at the blocked node according to the congestion status, and confirm the fair rate value of each service flow arriving at the blocked node in turn according to the number, and accordingly allocate each service flow fairly from the current remaining bandwidth of the system Bandwidth, the blocked node also needs to encapsulate the confirmed fair rate value in a Multi-Choke Fair Frame (MCFF, Multi-Choke Fair Frame) and send it to its upstream node.

[0038] If the node is a blocking node, for each service flow arriving at the blocking node, calculate the fair rate value of the current service flow, which is equal to the weight of the current remaining bandwidth of the system in the distribution weight of the service flow; according to the service flow sent by the d...

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Abstract

The invention relates to a method for achieving the purpose of fairly allocating the band width of the upper node of an elastic packet ring, which comprises the following steps: calculating the elastic packet ring EPR to reach the total number k of business flow of blocking node, assuring each fair speed value of each business flow which gets to the blocking node in turn according to the k, and allocating band width for each business stream from current residual band width of the system according to fair speed value which is assured, utilizing the blocking node to seal the fair speed value of the business flow which is assured in a multiple blocking points fair frame MCFF to send to the upper node. The invention improves the capability of a system to resist external disturbance, lowers sensitivity of a system to the internal parameter variation, achieves a goal of dynamically and fairly allocating band width, leads all the nodes to fairly occupy band width according to weight value of local node, and meanwhile, leads the utilization ration of band width to be maximized.

Description

technical field [0001] The invention relates to a technology for fair distribution of network resources of a resilient packet ring (RPR, Resilient Packet Ring) in a metropolitan area network, in particular to a method for realizing a fair distribution of bandwidth for each node on the RPR. Background technique [0002] RPR is a new metropolitan area network technology that can optimize packet data service transmission on the current metropolitan area network. The elastic packet ring network technology combines the economy, flexibility and scalability of Gigabit Ethernet, and also absorbs the synchronous digital system (SDH, Synchronous Digital Hierarchy) or synchronous optical network (SONET, Synchronous Optical Network) 50ms Advantages of quick protection. [0003] RPR researches a new media access control (MAC, Media Access Control) protocol optimized for metropolitan area network data transmission, which has the characteristics of shared media transmission, automatic top...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/42H04L12/56H04L47/76
Inventor 郁志勇张治中程方
Owner ZTE CORP
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