Fast replacing method of elastic group loop network

An elastic packet ring network and fast technology, applied in the field of data transmission, can solve the problems of slow response speed, data loss, long response time, etc., and achieve the effect of low packet loss rate, excellent network performance, and network bandwidth saving.

Inactive Publication Date: 2004-03-03
HUAWEI TECH CO LTD
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Problems solved by technology

The advantage of the boot switching method is that it will not waste bandwidth, but its response speed is slow. It takes a while for the fault information of nodes 5 and 6 to be transmitted to node 4, and then node 4 changes the data flow direction. The overall response time is longer, and in this All data sent within the time period will be lost

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  • Fast replacing method of elastic group loop network
  • Fast replacing method of elastic group loop network
  • Fast replacing method of elastic group loop network

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Embodiment Construction

[0027] In the fast switching method of the elastic packet ring network proposed by the present invention, after an optical fiber fails, the two nodes at both ends of the faulty optical fiber enter the surround mode, and the outer ring data stream reaching the nodes at both ends of the faulty optical fiber enters the inner ring, and the inner ring data stream enters the At the same time, nodes at both ends of the faulty optical fiber send broadcast packets to other nodes in the outer ring and inner ring to notify other nodes of the location of the fault. After other nodes on the ring network receive the broadcast packet containing fault information, The location reselects the sending direction of the data stream.

[0028] In the above method, the process of reselecting the sending direction of the data stream is: after the non-faulty node receives the fault information broadcast packet, the node judges the fault information, and if the data stream to be sent does not pass throug...

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Abstract

After malfunction happens on optic fiber, two nodes of two ends of defective optic fiber enter into bypass mode. Meanwhile, the said nodes send broadcast packets to other nodes through outer ring and inner ring to inform other nodes where failure occurs. With broadcast packet containing defective information being received, other nodes on ring net reselect direction for sending data stream based on failure location on ring net. The invention combines advantages of bypass rearrangement mode and guiding rearrangement mode so as to assure fast automatic capacity for rearrangement, save network bandwidth and low rate of losing packet.

Description

technical field [0001] The invention relates to a fast switching method of an elastic packet ring network, which belongs to the technical field of data transmission. Background technique [0002] Resilient Packet Ring (hereinafter referred to as RPR ring network) adopts the optical fiber transmission technology based on packet transmission, which can realize multi-service access, and has the advantages of large optical fiber network bandwidth and fast self-healing. Provide high-performance and cost-effective services on the existing optical fiber network. An important feature of the RPR ring network is its self-healing capability. That is to say, on the RPR ring network, if a node or a certain fiber fails, the ring network can automatically use a certain mechanism to quickly and appropriately respond to the corresponding event. response to ensure uninterrupted services on the ring network. The existing RPR ring network self-healing technologies include wrapping and steerin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/74
Inventor 高游
Owner HUAWEI TECH CO LTD
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