Optical burst exchange network dispatching method and module based on wavelength reserved resource bank

A technology for optical burst switching and resource reservation, which is applied in the field of optical burst switching network scheduling function and scheduling module, which can solve the problems of poor real-time performance, no mature method for hardware design and implementation, and slow speed, etc., to achieve low error, The effect of improving node throughput and high time accuracy

Inactive Publication Date: 2006-05-24
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The difficulty in the design of the control module is the design of the resource scheduling part. The software simulation of the resource scheduling algorithm already exists, but due to the inherent shortcomings of the software system such as slow speed and poor real-time performance, it must be implemented in the actual resource scheduling in the node unit. It is implemented with a hardware system, and there is currently no mature method for its hardware design and implementation

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  • Optical burst exchange network dispatching method and module based on wavelength reserved resource bank
  • Optical burst exchange network dispatching method and module based on wavelength reserved resource bank
  • Optical burst exchange network dispatching method and module based on wavelength reserved resource bank

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Embodiment Construction

[0026] The implementation method of the present invention will be described in further detail below in conjunction with the diagrams and examples.

[0027] Referring to Fig. 1, the optical burst switching network scheduling module 14 in the first embodiment of the present invention is located in the node control module, and is electrically connected with the routing forwarding module 13, the burst control packet transmission module 15 and the switching control module 17, including The following components:

[0028] A control unit 141 for establishing a linked list-based wavelength reservation resource library corresponding to each wavelength in ascending order of data packet start time, and performing operations for receiving, accessing, and modifying a new control packet;

[0029] It is used to store a wavelength reservation resource library based on the hardware linked list for each wavelength established according to the start time of the burst data packet; and the control ...

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Abstract

The invention relates to a measuring system for data setting time of tunable optical outburst receiving system that comprises a data source, an electro / optical conversion unit, a coupler, a tunable receiving unit, an optical / electro conversion unit, a series / parallel shift conversion unit, a data receiving module and a control module. The measuring method thereof is also disclosed. Advantages: limited used implement and accurate measuring.

Description

technical field [0001] The invention belongs to the category of network technology, and is a method for realizing the dispatching function of optical burst switching network based on wavelength reservation resource library. The invention also relates to a scheduling module in the node control module in the optical burst switching network. Background technique [0002] Optical Burst Switching (OBS) technology combines the advantages of Optical Circuit Switching (OCS) and Optical Packet Switching (OPS), while avoiding their shortcomings, so it becomes one of the effective ways to realize IP over WDM. OBS reserves the resources needed for delayed and larger optical bursts through early and small control packets, and dynamically, flexibly and timely establishes a connectionless, transparent and appropriate time segment link. Thus, bandwidth resources are effectively utilized. [0003] The OBS core node control module is the most important and intelligent functional unit in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00
Inventor 纪越峰孙娜王宏祥
Owner BEIJING UNIV OF POSTS & TELECOMM
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