Method and node for implementing optical outburst switching loop network

A technology of optical burst switching and nodes, which is applied in the direction of data switching network, ring network, and data switching through path configuration, etc. It can solve the problems of inability to realize access control and low bandwidth utilization rate, and improve bandwidth utilization rate , small access granularity, and efficient channel resources

Active Publication Date: 2008-07-02
HUAWEI TECH CO LTD +1
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Problems solved by technology

From the above prior art, it can be seen that since each node is assigned a dedicated wavelength to send data, flexible access control cannot be realized, and bandwidth utilization is low

Method used

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  • Method and node for implementing optical outburst switching loop network
  • Method and node for implementing optical outburst switching loop network
  • Method and node for implementing optical outburst switching loop network

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Embodiment Construction

[0016] The present invention provides a method and a node for realizing an optical burst switching ring network. The basic idea is to divide the data wavelength into fixed-length data burst time slots, and establish the correspondence between the burst control label and the data burst time slots. Relationship; the control of the data operation of the data burst time slot is realized through the burst control label.

[0017] Please refer to figure 1 , is a flow chart of the method of the present invention.

[0018] Step 101. Divide the data wavelength into fixed-length data burst time slots, and establish a corresponding relationship between the burst control label and the data burst time slots.

[0019] Step 102. When the node receives the burst control label, it performs a positioning operation on the data burst time slot corresponding to the burst control label.

[0020] Step 103. When the node detects that the data burst time slot arrives, it performs a data operation on ...

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Abstract

The invention discloses a method for realizing an optical burst exchange in a ring-network and a node. The core idea of the invention lies in that the data is divided into a data burst timeslot with a fixed length, and corresponding relation between the burst controlling label operated on a controlling wavelength and the data burst timeslot is built; when the node receives the burst controlling label, the node positions the data burst timeslot which is corresponding to the burst controlling label; when the node detects the arriving of the data burst timeslot, the node carries out data operation to the data burst timeslot according to the positioning operation. The invention can realize flexible access controlling and increase the utilization rate of the bandwidth.

Description

technical field [0001] The invention relates to optical burst switching technology, in particular to a method and a node for realizing an optical burst switching ring network. Background technique [0002] With the development and maturity of Wavelength Division Multiplex (WDM) technology, the original available bandwidth in optical fiber has increased to T bit (10 12 bit) level, using WDM technology for communication in the optical fiber ring network. Optical Burst Switching (OBS) is a packet switching and transmission method based on WDM technology. Applying OBS technology to an optical fiber ring network is called Optical Burst Ring (OBR). [0003] The implementation scheme of the existing optical burst switching ring network is as follows: there are N nodes on the ring, N+1 wavelengths, one of which is used as a control wavelength (or called a control channel), and other wavelengths are used as a data wavelength ( or data channel). The data wavelength is used to carry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/42H04Q11/00H04B10/12H04L45/50
Inventor 张毅姚明旿文爱军刘增基宁波毋丹芳
Owner HUAWEI TECH CO LTD
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