Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamic buffer memory management ATM switching arrangement and switching method thereof

A technology of dynamic caching and switching devices, applied in the field of ATM, can solve problems such as ATM switching logic congestion, and achieve the effect of solving cell queue head congestion

Inactive Publication Date: 2008-06-18
HUAWEI TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the above-mentioned defects of the prior art, and solves the problem of possible blockage in the existing ATM switching logic, so as to effectively utilize the storage space and ensure the effective transmission of ATM cells

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic buffer memory management ATM switching arrangement and switching method thereof
  • Dynamic buffer memory management ATM switching arrangement and switching method thereof
  • Dynamic buffer memory management ATM switching arrangement and switching method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] As shown in Figure 2, in the present embodiment, ATM switching logic at first uses the sending UTOPIA port of all external equipment as the input of oneself, promptly receives UTOPIA interface 21; And receives the UTOPIA port of all external equipment as self output, promptly sends UTOPIA Interface 22. In this way, the full switching function of ATM logic can be completed by sharing one switching channel.

[0030] Secondly, a module for dynamic buffer management is added behind the receiving asynchronous FIFO module 1, including an idle queue module 7, a cell header + idle pointer module 8, and a receiving cell DPRAM buffer module 9. in:

[0031] The idle queue module 7 is used to store the idle cell address pointer, to indicate which or which storage addresses of the receiving cell DPRAM cache module 9 are currently idle;

[0032] Cell header + idle pointer module 8 holds the figure 1 The function of the cell header queue module 3 in the cell header is used to store...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of ATM aimed at solving the queue header block up problem existing in the conventional ATM exchange logic, an ATM exchange device for dynamic buffer management and exchange method thereof are provided, by adding reception information element DPRAM buffer module, the corresponding idle queue module, an information header + idle pointer module to the prior art technology, because the information element data in the DPRAM buffer module need not be accessed in the first-in-first-out mode, the problem of information element queue header blocking up can be solved by the invention.

Description

technical field [0001] The present invention relates to the technical field of ATM (Asynchronous Transfer Mode, that is, asynchronous transfer mode), and more specifically, relates to an ATM switching device for dynamic buffer management and a switching method thereof. Background technique [0002] ATM is a cell-based switching and multiplexing technology, and the basic carrier for transmitting information is the ATM cell. The common practice of realizing ATM switching logic in the prior art is as follows: figure 1 As shown, its modular unit includes receiving asynchronous FIFO (First-in First-out) module 1, receiving cell distribution module 2, cell header queue module 3, lookup table module 4 and multiple sending asynchronous FIFOs Module 5; wherein, receiving asynchronous FIFO module 1 is connected with UTOPIA (Universal Test and Operation Interface for Asynchronous, asynchronous general test operation interface) interface 21 to receive cell, and sending asynchronous FIF...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/26H04L12/24H04Q3/00
Inventor 张耀文周彬李宗伟
Owner HUAWEI TECH CO LTD