TDX-10패킷 교환기능중 X.25의 실현

Implementation of X.25 for the TDX-10 Packet Switching

ISDN 교환기에서 패킷서비스를 제공하기 위하여 CCITT X.31이 권고되었으며, 사용자와 패킷처리간 B 채널 혹은 D 채널로 서비스된다. ISDN용으로 개발되는 TDX-10에 패킷교환기능을 제공하기 위해 X.31에 근거를 두며, DTE와 DCE 접속용으로 권고된 X.25 프로토콜의 팻킷레벨처리를 TDX-10 ISDN 환경에 적합하도록 설계하였다.

This paper presents how X.25 state machines are defined and procedures are implemented Into the TDI-10 switching system, which Is being developed as an ISDN exchange in Korea.Packet switching is an in important aspect of I SDN. Packet swichedd services in ISDN are defined by X.:31, which provides for the use X.f,j over ISDN B and D-channels between a user and an X.25packet handler. To implement X.2E into an ISDN exchange which Includes a packet handler, X.25state machines and procedures should be adj usted within the ISDN exchange.