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Optical burst switch network self-adaptive converging method and device thereof

An optical burst switching and self-adaptive technology, applied in the field of all-optical communication, achieves the effect of simple implementation and strong adaptability

Inactive Publication Date: 2008-04-16
PEKING UNIV
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Problems solved by technology

This encapsulation method cannot be adaptively changed as the load changes dynamically

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  • Optical burst switch network self-adaptive converging method and device thereof
  • Optical burst switch network self-adaptive converging method and device thereof
  • Optical burst switch network self-adaptive converging method and device thereof

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings, but the scope of the present invention is not limited in any way.

[0024] The simplified structural block diagram of the burst data packet produced by the self-adaptive convergence adaptation method proposed by the present invention is as follows: figure 1 shown. figure 1 The simplified structure shown is composed of service classifier, aggregation adaptation module, aggregation adaptation control module, burst data packet and burst control packet generator, scheduling module, optical transmission module, optical wavelength division multiplexer and storage burst control packet Composed of ERAM with burst data packets. The convergence adaptation module is composed of a memory, a timer, a data length recorder and the like.

[0025] Among them, the service classifier is mainly used to classify the data from the access network according to the destination address and ...

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Abstract

The invention provides an adaptive convergence method for the optical bursting network and the device belonging to the technical field of fully optical communication. The data from the access network enters an operation sorter of an OBS node and the sorter sorts the data according to the destination address and QoS requirement and submits the data to a convergence creation module; the convergence creation module is responsible for recording the data length in the convergence queue and the latency time of the data package which is the first in the queue and calculates the sum or product of the data; if the sum or product reaches the preset threshold value, a producer of the bursting data package of convergence adaptive controlled module orders packages the data in queue into a bursting data package and an optical transmitting module delivers the data package into a link through a light wave division multiplexer. The invention is every adaptive to the dynamic changes of the network load and can equalize the end-to-end time delay function of the network.

Description

technical field [0001] The invention relates to the technical field of all-optical communication, in particular to a service self-adaptive convergence adaptation method of an Optical Burst Switching (Optical Burst Switching) network. Background technique [0002] Wavelength division multiplexing (WDM) technology provides massive transmission bandwidth for optical communication. One optical fiber carries hundreds of wavelength channels, and the transmission bandwidth reaches tens to hundreds of terabits per second. Currently, the core routers used to receive high-speed optical Signals are processed in parallel after optical / electrical conversion, and then multiplexed into high-speed optical signals for forward transmission through electrical / optical conversion. In order to maintain wire-speed packet forwarding, the core router not only needs a large number of optical / electrical / optical conversion devices and a large number of parallel processing, but also requires a large num...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04L12/56H04J14/02H04B10/12H04L12/861
Inventor 袁驰李正斌徐安士
Owner PEKING UNIV
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