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Parallel channel scheduler in the optical burst switching

An optical burst switching and scheduler technology, applied in the field of optical communication, can solve the problems of slow processing speed and uncertain scheduling time of the scheduler, and achieve the effects of shortening processing time, improving performance and improving efficiency

Inactive Publication Date: 2007-09-12
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Since the serial method is used when searching for the available time interval and selecting the optimal channel, the processing speed of the scheduler is relatively slow, and the scheduling time is uncertain, which will increase with the increase of the channel and the increase of the idle time interval on the channel

Method used

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  • Parallel channel scheduler in the optical burst switching
  • Parallel channel scheduler in the optical burst switching
  • Parallel channel scheduler in the optical burst switching

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments of the LAUC-VF algorithm.

[0024] The following embodiments and the illustrated drawings are used to provide further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention.

[0025] FIG. 1 is a schematic structural diagram of an OBS core node control card applicable to the present invention. It consists of a receiving module, a cross matrix, a request queue, a scheduler, a sending module, and an optical cross matrix control module. The receiving module is used to receive data packets from the control channel, perform photoelectric conversion, and process data link layer and network layer. The cross matrix is ​​used to switch the ...

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Abstract

A kind of channel parallel scheduling device in optical burst switching, realizes optical burst switching channel scheduling of LAUC-VF type, composes of the main control module, a number of single-channel processing module and channel choice modules. The main control module receives control packets of the sudden, analysis the time requested in accordance with data packets unexpected, and sends the time information to all the single-channel processing module at the same time, all the single-channel processing module search time interval in parallel, if there can be time interval, makes the related data transmit to the channel option module, channel choices module compares with the parallel channel levels and find the optimal channel, and then returns to the main control module, the main control module updates according to the scheduling results, complete scheduling process. This invention achieves a channel parallel processing, searches the idle time of channel spacing parallel at the same time, as well as selects the optimal parallel channel, shorten the processing time of control packet in OBS nodes, and upgrade OBS network performance.

Description

technical field [0001] The present invention relates to a channel parallel scheduler in optical burst switching, more specifically, relates to a device for channel parallel processing in optical burst switching scheduling and improving the channel allocation efficiency of optical burst switching. It belongs to the technical field of optical communication. Background technique [0002] The continuous growth of IP services puts forward new and higher demands on transmission and switching technologies. OBS (Optical Burst Switching) combines the advantages of both optical circuit switching and optical packet switching, and overcomes the shortcomings of both. Multiplexing) optical network implementation scheme has become a research hotspot in the field of optical network recently (CA.Brackett, et al, "Densewavelength division multiplexing networks: Principles and applications", IEEEJ.Selecz.Areas Commun., voI.8, pp947 -964). In optical burst switching, the ingress edge node en...

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Application Information

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IPC IPC(8): H04Q11/00H04L12/56H04J14/02H04L12/869
Inventor 朱黎明吴龟灵陈建平李新碗田巍
Owner SHANGHAI JIAO TONG UNIV
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