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Method for enhancing convergence performance of elastic packet ring

A resilient packet ring and performance technology, applied in the communication field, can solve the problems of increasing RPR convergence time and achieve the effects of reducing convergence time, improving convergence performance, and rapid protection upgrade

Inactive Publication Date: 2010-05-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The problem to be solved by the present invention is to provide a method for improving RPR convergence performance, so as to overcome the defects of increasing the convergence time of RPR due to sending and receiving redundant messages in the prior art

Method used

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  • Method for enhancing convergence performance of elastic packet ring
  • Method for enhancing convergence performance of elastic packet ring
  • Method for enhancing convergence performance of elastic packet ring

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Experimental program
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Embodiment Construction

[0033] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail:

[0034] A RPR structure such as figure 1 As shown, four nodes including A, B, C, and D are included. Among them, in the clockwise direction, the data flow from node A to node B, then from node B to node C, then from node C to node D, and finally from node D to node A constitutes a ring 0; in the counterclockwise direction, from The data flow from node A to node D, then from node D to node C, then from node C to node B, and finally from node B to node A constitutes a ring.

[0035] When an embodiment of the present invention adopts figure 1 In the shown RPR structure, if node A detects that an FS failure occurs on the 1 ring on the side where the node is connected to node B, then node A first sends a TP message with both TTL and TTL-BASE as 1 on the edge side , and then Node B receives the message, and finally Node B performs...

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Abstract

The present invention discloses a method for improving the elasticity grouping circle astringency performance, which relates to the communication technical field and resolves the prior art defect thatthe astringency time of RPR is increased for transmitting and receiving redundant message. In the present invention, the original node is first at a topology and protective message that the transmitting living time and the original value of living time are all 1, then an aim node receives the message, and finally the aim node conducts protective upgrade. The present invention can decrease the TPmessage which is need to be transmitted and received on RPR, thereby reducing the astringency time of RPR; moreover, the present invention can predict and make rapid protective upgrades to the protective upgrade state of the node after side, thereby improving the astringency performance of RPR.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for improving the convergence performance of an elastic packet ring. Background technique [0002] RPR (Resilient Packet Ring, Resilient Packet Ring) is an optical fiber ring network based on high scalability and elastic technology, which can effectively transmit packet-based service traffic. The technology is suitable for data, voice and video applications. RPR uses a fair control algorithm to enable each node on the ring network to automatically complete bandwidth coordination; each node has a ring network topology, and can send data to the fiber sub-ring and send it to the destination node. In order to prevent link interruption caused by fiber or node failure, this technology uses protection algorithms to eliminate the corresponding faulty segment. [0003] Both sub-rings of the RPR can be used as working channels, which can save fiber resources. In addition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/22H04L12/56H04L12/70
Inventor 张丽军张义龙
Owner HUAWEI TECH CO LTD