FIFO cache sharing router based on fiber delay lines and working method thereof

Abstract

The invention discloses a FIFO cache sharing router based on fiber delay lines and a working method of the FIFO cache sharing router. The cache sharing router allows sharing of N packets and structurally comprises a (N+M)*(N+M) non-blocking optical switching matrix, the M fiber delay lines and a logic control unit. By setting optical fiber delay line lengths (img file='23068dest_path_image002.TIF', wi='216', he='24'/) and adopting the packet scheduling algorithm based on sorting, the FIFO light cache sharing function can be simulated under the condition of the arrival of any packet by the FIFO cache sharing router based on the fiber delay lines according to the working method.

Description

technical field [0001] The invention relates to an optical FIFO shared buffer queue, which specifically utilizes an optical fiber delay line to realize optical packet dynamic buffering, realizes optical buffer sharing through a feedback structure, and then uses a sorting-based scheduling strategy to ensure packet FIFO scheduling and fully utilizes optical fiber delay line storage Resource, implements an all-optical FIFO shared buffer queue based on fiber delay line. Background technique [0002] In the optical transmission network, since there is no physical optical memory, at the network nodes that transmit information in a store-and-forward manner, people usually first convert the arriving optical signal into an electrical signal, and then pass it through the electrical memory ( Such as RAM) storage, and then converted into an optical signal and sent to the optical channel when the port is idle. However, this "optical-electrical-optical" conversion method severely limits ...

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Problems solved by technology

However, this "optical-electrical-optical" conversion method severely limits the speed o

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