KR970056311A - Primitive Handling in LAPD for ISDN User-Network Connections - Google Patents

Primitive Handling in LAPD for ISDN User-Network Connections Download PDF

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Publication number
KR970056311A
KR970056311A KR1019950052767A KR19950052767A KR970056311A KR 970056311 A KR970056311 A KR 970056311A KR 1019950052767 A KR1019950052767 A KR 1019950052767A KR 19950052767 A KR19950052767 A KR 19950052767A KR 970056311 A KR970056311 A KR 970056311A
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South Korea
Prior art keywords
busy
primitive
lapd
flag
bit
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KR1019950052767A
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Korean (ko)
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정용길
이종대
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배순훈
대우전자 주식회사
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Priority to KR1019950052767A priority Critical patent/KR970056311A/en
Publication of KR970056311A publication Critical patent/KR970056311A/en

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Abstract

본 발명은 ISDN 사용자-망 접속의 LAPD에서 프리미티브 처리방법에 관한 것으로, 계층 2 내부에서 수신불가를 나타내기 위한 SET_OWN_BUSY 프리미티브를 수신하는 단계(201); 상기 수신된 프리미티브의 링크 앤티티를 식별하여 해당 링크 앤티티의 현재 상태를 판별하는 단계(202,203); 상기 판별결과 상태 7 혹은 8이고 자기 비지 플래그(own_busy_st)가 셋되어 있지 않으면, 자기 비지 플래그(own_busy_st)를 셋하고 P비트를 0으로, C/R비트를 응답으로 설정한 후 RNR을 상대측으로 전송하는 하는 단계(205~209); 및 어크놀리지 팬딩 플래그를 클리어하는 단계(210)로구성되어 처리절차를 단순화하여 처리시간을 단축할 수 있는 효과가 있다.The present invention relates to a primitive processing method in LAPD of an ISDN user-network connection, comprising: receiving (201) a SET_OWN_BUSY primitive to indicate that reception is not possible within Layer 2; Identifying (202,203) the current state of the link entity by identifying the link entity of the received primitive; If the determination result is state 7 or 8 and the self busy flag (own_busy_st) is not set, the self busy flag (own_busy_st) is set, the P bit is set to 0, and the C / R bit is set as a response, and the RNR is transmitted to the counterpart. Step 205 to 209 for making; And clearing the acknowledgment pending flag (210), thereby simplifying the processing procedure and reducing the processing time.

Description

ISDN 사용자-망 접속의 LAPD에서 프리미티브 처리방법Primitive Handling in LAPD for ISDN User-Network Connections

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

제6도는 본 발명에 따라 LAPD를 구현하는 하드웨어의 예를 도시한 도면.6 illustrates an example of hardware for implementing LAPD in accordance with the present invention.

제8도는 본 발명에 적용되는 계층2에서의 환경변수 테이블을 도시한 도면.8 is a diagram showing an environment variable table in Layer 2 applied to the present invention.

제10도는 본 발명에 따른 프리미티브 처리절차를 도시한 SDL 도면이다.10 is an SDL diagram illustrating a primitive processing procedure according to the present invention.

Claims (2)

종합정보통신망에서 ISDN단말기를 계층화된 프로토콜에 따라 망(Network)에 접속하기 위하여 LAPD를 구현하는 방법에 있어서, 계층 2 내부에서 수신불가를 나타내기 위한 SET_OWN_BUSY 프리미티브를 수신하는 단계(201); 상기 수신된 프리미티브의 링크 앤티티를 식별하여 해당 링크 앤티티의 현재 상태를 판별하는 단계(202,203); 상기 판별결과 상태 7 혹은 8이고 자기 비지 플래그(own_busy_st)가 셀되어 있지 않으면, 자기 비지 플래그(own_busy_st)를 셋하고 P비트를 0으로, C/R비트를 응답으로 설정한 후 RNR을 상대측으로 전송하는 하는 단계(205~209)를 포함하는 ISDN 사용자-망 접속의 LAPD에서 프리미티브 처리방법.CLAIMS 1. A method for implementing a LAPD to connect an ISDN terminal to a network according to a layered protocol in an integrated telecommunication network, the method comprising: receiving a SET_OWN_BUSY primitive for indicating that reception is not possible in Layer 2 (201); Identifying (202,203) the current state of the link entity by identifying the link entity of the received primitive; If the determination result is state 7 or 8 and the self busy flag (own_busy_st) is not counted, the self busy flag (own_busy_st) is set, the P bit is set to 0, and the C / R bit is set as a response, and the RNR is transmitted to the counterpart. Primitive processing method in the LAPD of the ISDN user-network connection comprising the step (205 ~ 209). 제1항에 있어서, 상기 처리방법은 어크놀리지 팬딩 플래그를 클리어하는 단계(210)를 더 구비한 것을 특징으로 하는 ISDN 사용자-망 접속의 LAPD에서 프리미티브 처리방법.2. The method of claim 1, further comprising the step of clearing an acknowledgment pending flag (210). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950052767A 1995-12-20 1995-12-20 Primitive Handling in LAPD for ISDN User-Network Connections KR970056311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950052767A KR970056311A (en) 1995-12-20 1995-12-20 Primitive Handling in LAPD for ISDN User-Network Connections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950052767A KR970056311A (en) 1995-12-20 1995-12-20 Primitive Handling in LAPD for ISDN User-Network Connections

Publications (1)

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KR970056311A true KR970056311A (en) 1997-07-31

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