KR970019242A

KR970019242A - APPARATUS FOR SUPPORTING FAST ATM CONNECTION

Info

Publication number: KR970019242A
Application number: KR1019950029188A
Authority: KR
Inventors: 노권형; 신수정
Original assignee: 이우복; 사단법인 고등기술연구원 연구조합
Priority date: 1995-09-06
Filing date: 1995-09-06
Publication date: 1997-04-30

Abstract

본 발명은 CAM을 이용하여 고속 ATM 접속을 유지하는 고속 ATM 접속을 유지하는 장치에 관한 것으로서, 종래에는 인터페이스부의 프로세서에 의한 정보 테이블 탐색은 접속이 유지되는 동안 빈번히 발생함으로써 접속 정보 테이블을 램에 유지할 경우 데이터의 전송이 있을 때 마다 탐색 작업을 수행해야 하는데, 이러한 부담은 전체 시스템의 성능 저하를 유발하며, 또한 동시에 유지되고 있는 접속의 수가 많아서 각각의 접속에 대한 속도가 데이터 수신의 속도를 쫓아가지 못하게 될 경우 패킷 메모리에서 데이터 손실이 발생되는 결점이 있었으나, 본 발명에서는 기존의 고속 통신망 인터페이스 시스템에서 나타나는 접속 정보 테이블(30)을 CAM으로 구함으로써 탐색작업의 부담을 제거할 수 있으므로 상기 결점을 개선시킬 수 있는 것이다.The present invention relates to a device for maintaining a fast ATM connection for maintaining a fast ATM connection using a CAM. In the related art, an information table search by a processor of an interface unit frequently occurs while a connection is maintained, thereby maintaining the connection information table in RAM. In this case, the search should be performed whenever there is data transmission. This burden causes the performance of the entire system, and the number of connections maintained at the same time prevents the speed for each connection from following the speed of data reception. If there is a drawback that the data loss occurs in the packet memory, but the present invention can eliminate the burden of the search operation by obtaining the connection information table 30 that appears in the existing high-speed network interface system by CAM to improve the defects It can be.

Description

APPARATUS FOR SUPPORTING FAST ATM CONNECTION

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

제1도는 일반적인 패킷 통신망을 설명하기 위해 각 계층을 나타낸 도면.1 is a diagram illustrating each layer to explain a general packet communication network.

제2도는 CAM 으로 구현된 접속 정보 테이블을 나타낸 도면.2 is a diagram showing a connection information table implemented in CAM.

제3도는 본 발명에 따른 고속 에이티엠 접속을 유지하는 장치의 일실시예를 나타낸 블럭도.3 is a block diagram illustrating one embodiment of an apparatus for maintaining a fast AT connection in accordance with the present invention.

Claims

A user system processor (10) for controlling connection establishment and reading and writing; An interface processor (20) which communicates with the system processor (10) to perform mapping operations for signaling and maintaining connection; A connection information table (30) which is implemented as a CAM and communicates with the interface processor (20) to temporarily store and output connection information; An ATM / AAL processor 40 which communicates with the interface processor 20 to convert a user packet into an ATM cell, transmits the same, and performs the reverse process; A packet storage device (50) which communicates with the interface processor (20) and the ATM / AAL processing unit (40) to temporarily store and output user packets transmitted / received; A user system storage device 70 that stores and outputs the corresponding user system information; Data is stored in the user system storage device 70 and the packet storage device 50 in a DMA transfer mode under the control of the interface processor 20 between the user system storage device 70 and the packet storage device 50. And a DMA controller (60) configured to perform a call forwarding so that the reception buffer is filled.

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