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Dynamic time-division exchanger and exchanging method

A time-division exchange and dynamic technology, applied in the field of data exchange, to avoid bus conflicts, realize dynamic configuration, and improve utilization

Active Publication Date: 2008-10-22
CHINA POTEVIO INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the above time-division multiplexing bus method, the present invention provides a device for dynamic time-division switching, which can dynamically and fairly allocate each time slot of the bus to the ports that need to perform cell exchange, which can solve the problem of bus Conflict issues, but also improve the utilization of the bus

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0046] The invention provides a device for realizing dynamic time-division switching of a bus-type switching system, the structure of which is as follows: figure 1 As shown, it mainly includes: more than one input / output port module 10 connected by the bus 31, used to write the cells input from the outside into the bus 31 and / or read the cells from the bus 31 and output; and be connected to each input The switching control module 20 of the output port module 10 is used to inquire whether each input and output port module 10 has a cell input, and obtains the source port routing information of the input cell input by the input and output port module 10 of the cell input, according to the stored The corresponding relationship between the source port routing inform...

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Abstract

The apparatus comprises: more than one input and output port module, connected with bus, for use in writing the cell inputted from outside into the bus or reading the cell from the bus and outputting it; and a switch control module, connected to each input and output port module, for use in enquiring whether or not there is cell inputted, recording the routing information from the input and output module, and according to corresponding relation between the source port routing information and the destination port information getting the exchange message of each inputted cell and buffering them, and then according to the buffered exchange message sequentially controlling the exchange of each cell on the bus.

Description

technical field [0001] The invention relates to data exchange technology, in particular to a device and method for realizing dynamic time-division exchange in a bus type exchange system. Background technique [0002] In a bus-type switching system in which multiple ports share a bus, how to solve the conflict of each port's occupation of the bus is one of the key issues to be solved urgently. At present, the method of time-division multiplexing the bus of each port is usually used to solve the above-mentioned bus conflict problem. [0003] In the traditional time-division multiplexing bus method, the bus resource is divided into more than one time slot, and each port is assigned a fixed time slot to transmit cells. In this way, each port can send its own buffered cells within the assigned time slot, thereby effectively avoiding bus conflicts. However, in the above method, the corresponding relationship between each port and the allocated time slot is determined, and each p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/413
Inventor 邢益海闫丽新
Owner CHINA POTEVIO INFORMATION IND