KR970031579A

KR970031579A - Automatic initialization device in limited common memory ATM switch

Info

Publication number: KR970031579A
Application number: KR1019950039427A
Authority: KR
Inventors: 최은창; 이정희; 박권철
Original assignee: 양승택; 한국전자통신연구원; 이준; 한국전기통신공사
Priority date: 1995-11-02
Filing date: 1995-11-02
Publication date: 1997-06-26
Also published as: KR0168943B1

Abstract

본 발명은 ATM 스위치 내부의 셀을 저장하는 공통메모리, 공통메모리의 번지를 저장하는 FIFO, 공통메모리의 번지를 발생시키는 휴지 번지부 등에서 에러갈 발생하여 셀의 손실이 증가하거나 전체적인 스위치의 성능이 저하될 때, 스위치 제어기에서 자체적으로 장애 상태를 감시하여 초기화를 자동적으로 실현할 수 있는 장치를 제공하는데 그 목적이 있다.According to the present invention, an error occurs in a common memory storing a cell inside an ATM switch, a FIFO storing a common memory address, and an idle address generating a common memory address, resulting in an increase in cell loss or a decrease in overall switch performance. It is an object of the present invention to provide a device capable of automatically realizing an initialization by monitoring a failure state by itself in a switch controller.

상기의 목적을 달성하기 위하여 본 발명은 FIFO 읽기 제어부(21), 휴지 어드레스 에러 검증부(22), 스위치 에러 경보 발생부(23), FIFO 엠프티 경보 발생부(24), 자동 초기화 선택부(25)를 구비하며, 제한적 공통메모리형 스위치의 초기화 조건을 선택할 수 있어 스위치 내부의 셀을 저장하는 공통메모리, 공통메모리의 번지를 저장하는 FIFO,-공통메모리의 번지를 발생시키는 휴지 번지부 등에서 에러가 발생하여 스위치 내부에서 셀의 손실이 증가하거나 전체적인 스위치의 성능이 저하될 때, 스위치 제어기에서 자체적으로 장애 상태를 감시하여 초기화를 자동적으로 실현하며, 또한 스위치 제어계의 경보가 발생하지 않아도 유휴(IDLE)셀이 계속 입력되어 스위치 내부의 버퍼가 비어 있는 경우에도 자동으로 초기화를 수행하는 특유의 효과가 있다.In order to achieve the above object, the present invention provides a FIFO read control unit 21, an idle address error verification unit 22, a switch error alarm generation unit 23, a FIFO empty alarm generation unit 24, an automatic initialization selection unit ( 25), the initialization condition of the limited common memory type switch can be selected so that the common memory for storing the cells inside the switch, the FIFO for storing the address of the common memory, and the idle address for generating the address of the common memory, etc. Occurs, the loss of cells inside the switch increases or the overall switch's performance decreases, the switch controller monitors the fault condition by itself and realizes initialization automatically, and idles without an alarm of the switch control system. Even if the cell is continuously input and the buffer inside the switch is empty, there is a unique effect of automatically initializing.

Description

Automatic initialization device in limited common memory ATM switch

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 제한적 공통메모리 스위치의 자동 초기화 장치의 블럭 구성도.2 is a block diagram of an automatic initialization device of a limited common memory switch according to the present invention.

Claims

FIFO read control means 21 for generating FIFO error information and common memory error alert, idle address error verification means 22 for generating idle address error alert, and FIFO error that is output from the FIFO read control means 21 Switch error alarm generating means (23) which combines information, a common memory error alarm and a pause address error alarm output from the idle address error verification means (22) and generates a switch error alarm signal if any one of the alarm signals is generated; And a switch error which is an output of the FIFO empty alarm generating means 24 which generates a FIFO empty flag signal when there is no cell in the address buffer of the FIFO part, and the switch error alarm generating means 23. The excitation of the switch error alarm generating means 23 is inputted with the occurrence alarm and the FIFO empty flag EMPTY FLAG which is the output of the FIFO empty alarm generating means 24 as input. A mode for initializing when an alarm signal is generated or an excited alarm signal of the FIFO empty alarm generating means 24 occurs, a mode for initializing only when an excited alarm signal of the switch error alarm generating means 23 occurs, the FIFO In the ATM switch, characterized in that it is provided with an automatic initialization selection means 25 for generating an initialization signal by setting a mode to initialize only when the excited alarm signal of the empty alarm generating means 24 occurs. Auto initialization device.

※ Note: The disclosure is based on the initial application.