Large-capacity and high-performance overlapped switching method

Abstract

The invention discloses a high capacity, high performance lamination exchange method, relating to a high speed and high capacity core exchange technology in the communication field. The invention takes the processing of N ways of input data as one exchange layer, and the exchanged N ways of data output as the other layer, wherein the two layers correlate through N*N interchange factors, and the invention realizes unblocked high capacity and high speed exchange by controlling the two layers and interchange factors. The invention further has the advantages of: large exchange capacity up to above 100G; no external blocking and internal blocking; the clock rate of the exchange clock being equal to that of the port clock, with no need to accelerate; Short exchange delay; fully supporting multicasting and collective-casting; supporting priority exchange; being able to be realized by a hardware circuit monolithic chip; and convenience for cascade connection and extension. The invention is suitable for high speed exchange of ATM networks, high speed exchange of IP networks, high speed exchange of optical fiber interconnected networks, and other locations requiring high speed exchange and high speed multiplexing / separate connection, especially suitable for the core exchange of new generation high capacity and high speed Wide Band.

Description

technical field [0001] The invention relates to a large-capacity and high-performance layer switching method in the communication field. The present invention is suitable for high-speed switching of ATM network, high-speed switching of IP network, high-speed switching of optical fiber Internet network and other occasions requiring high-speed switching, high-speed multiplexing / division, etc., and is especially suitable for core switching of a new generation of large-capacity high-speed broadband network. Background technique [0002] With the development and progress of technology, there are more and more high-speed switching networks, such as ATM network, IP network, optical fiber interconnection network and other high-speed networks, all of which require a large-capacity, high-speed, high-performance core switching structure to exchange and process data. [0003] Traditional switching structures are generally divided into two categories: time-division structure and space-di...

AI Technical Summary

Problems solved by technology

[0004] The shared memory structure requires the processing clock to be N times the port rate, and the input buffer + CROSSBAR switching structure has blocking and limitations in single-port transmission

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