A buffering structure for sectioned share optical loop switching network

Abstract

The invention protects a sectional type shared packet switching network buffering structure and relates to optical communication technology field. The invention provides a novel optical packet switching network buffering structure, aiming at the property of the current optical packet switching network buffering structure about low optical fiber operating factor and high cost. The buffering structure adopts optical fiber sectional type share mechanism and consists of a plurality of optical fiber delay units with the same time delay. Except for the next level of delay optical fiber is directly connected with the optical packet switching matrix, two inlets of other optical delay unit on each level are connected with the outlet of the next level of delay optical fiber and are directly connected with the outlet of the optical packet switching matrix. The optical packet data packet in need of time delay chooses different delay optical fiber inlet, according to the time difference of the optical packet switching matrix outlet. The structure can fully improve the operating factor of the optical fiber delay line, reduce the core node cost and solve the interface competition problem of optical packet switching network.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to the structure of an optical packet switching network. Background technique [0002] Wavelength Division Multiplexing (WDM) technology brings great changes to network design. Optical Packet Switching (OPS) is a technology that introduces optical switching technology on the basis of optical wavelength division multiplexing to realize high-throughput and high-speed data transmission. It not only has the characteristics of wavelength routing being transparent to data rate and format, but also has the advantage of flexible and adjustable granularity in packet switching, and can effectively solve the "electronic bottleneck" problem currently existing on switching nodes of communication networks. It is one of the most promising supporting technologies in the future high-speed broadband data network. [0003] Normally, optical packet switching can be divided into two modes: synch...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: Aiming at the shortcomings of low fiber utilization and high cost of the existing optical packet switching network buffer structure, the present invention proposes a new optical packet switching network buffer structure, which adopts optical fiber segmentation The sharing mechanism fully improves the utilization rate of the optical delay line, reduces the cost of the core node, and solves the problem of port competition in the optical packet switching network.

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