KR970056217A - Connectionless server system with optional multicasting capability - Google Patents

Connectionless server system with optional multicasting capability Download PDF

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Publication number
KR970056217A
KR970056217A KR1019950053958A KR19950053958A KR970056217A KR 970056217 A KR970056217 A KR 970056217A KR 1019950053958 A KR1019950053958 A KR 1019950053958A KR 19950053958 A KR19950053958 A KR 19950053958A KR 970056217 A KR970056217 A KR 970056217A
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South Korea
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cell
address
vci
multicasting
cells
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KR1019950053958A
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Korean (ko)
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KR0150529B1 (en
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전병천
박천관
김영선
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양승택
한국전자통신연구원
이준
한국전기통신공사
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Priority to KR1019950053958A priority Critical patent/KR0150529B1/en
Priority to FR9615645A priority patent/FR2742958B1/en
Publication of KR970056217A publication Critical patent/KR970056217A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/30Peripheral units, e.g. input or output ports
    • H04L49/3081ATM peripheral units, e.g. policing, insertion or extraction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4604LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L12/4608LAN interconnection over ATM networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/20Support for services
    • H04L49/201Multicast operation; Broadcast operation
    • H04L49/203ATM switching fabrics with multicast or broadcast capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/30Peripheral units, e.g. input or output ports
    • H04L49/3009Header conversion, routing tables or routing tags
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5625Operations, administration and maintenance [OAM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L2012/5638Services, e.g. multimedia, GOS, QOS
    • H04L2012/5645Connectionless
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/20Support for services
    • H04L49/201Multicast operation; Broadcast operation

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

본 발명은 ATM(Asynchronous Transfer Mode) 망에서 비연결형 서버에서의 선택적인 멀티캐스팅 기능 구성에 관한 것으로, 입력된 셀을 데이터 셀과 OAM 셀 또는 제어 셀로 구분해 주는 셀 구분 수단; 그룹 주소값을 가진 멀티캐스팅 셀을 입력받아 멀티캐스팅 기능을 수행하는 셀 복사 수단; 상기 셀 구분 수단으로부터 입력된 OAM 셀을 처리하는 OAM 처리 수단; 상기 셀 구분 수단으로부터 입력된 제어 셀을 처리하는 연결 제어 수단; 상기 셀 구분 수단으로부터 입력되는 데이터 셀의 목적기 주소값(DA : Destination Address)에 따라 VIP/VCI/MID 값을 변환하여 상기 셀 복사 수단, OAM 처리수단 및 연결 제어 수단에 제공하는 헤더 변환 및 DA 처리 수단; 및 상기 셀 복사 수단, OAM 처리수단 및 연결 제어 수단의 출력을 입력받아 멀티캐스팅 셀을 분리하여 상기 셀 복사 수단으로 퀘환시키고 데이터 셀과 멀티캐스팅 및 제어 셀을 다중화하는 셀 구분 및 다중화 수단을 구비하는 것을 특징으로 하는 멀티캐스팅 기능을 선택적으로 가질 수 있다.The present invention relates to an optional multicasting function configuration in a connectionless server in an ATM (Asynchronous Transfer Mode) network, comprising: cell discrimination means for dividing an input cell into a data cell and an OAM cell or a control cell; Cell copying means for receiving a multicasting cell having a group address value and performing a multicasting function; OAM processing means for processing the OAM cell input from the cell discriminating means; Connection control means for processing a control cell input from said cell discriminating means; Header conversion and DA for converting the VIP / VCI / MID value according to the destination address (DA) of the data cell inputted from the cell discriminating means and providing it to the cell copying means, OAM processing means and connection control means. Processing means; And cell division and multiplexing means for receiving the outputs of the cell copying means, OAM processing means, and connection control means, separating the multicasting cells, converting them into the cell copying means, and multiplexing data cells with multicasting and control cells. It may optionally have a multicasting function characterized in that.

Description

선택적인 멀티캐스팅 기능을 가지는 비연결형 서버 시스템Connectionless server system with optional multicasting capability

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

제3도는 본 발명에 따른 비연결형 서버 시스템의 구성도,3 is a configuration diagram of a connectionless server system according to the present invention;

제5도는 본 발명에서의 그룹주소 및 그룹주소셀 처리를 설명하기 위한 도면,5 is a diagram for explaining group address and group address cell processing in the present invention;

제6도는 헤더 변환부의 출력 셀 형식을 나타낸 도면.6 is a diagram showing an output cell format of a header converter.

Claims (6)

입력된 셀을 데이터 셀과 OAM 셀 또는 제어 셀로 구분해 주는 셀 구분 수단; 그룹 주소값을 가진 멀티캐스팅 셀을 입력받아 멀티캐스팅 기능을 수행하는 셀 복사 수단; 상기 셀 구분 수단으로부터 입력된 OAM 셀을 처리하는 OAM 처리수단; 상기 셀 구분 수단으로부터 입력된 제어 셀을 처리하는 연결 제어수단; 상기 셀 구분 수단으로부터 입력되는 데이터 셀의 목적기 주소값(DA : Destination Address)에 따라 VIP/VCI/MID 값을 변환하여 상기 셀 복사 수단, OAM 처리수단 및 연결 제어 수단에 제공하는 헤더 변환 및 DA 처리 수단; 및 상기 셀 복사 수단, OAM 처리수단 및 연결 제어 수단의 출력을 입력받아 멀티캐스팅 셀을 분리하여 상기 셀 복사 수단으로 궤환시키고 데이터 셀과 멀티캐스팅 및 제어 셀을 다중화하는 셀 구분 및 다중화 수단을 구비하는 것을 특징으로 하는 선택적인 멀미캐스팅 기능을 가지는 비연결형 서버 시스템.Cell discriminating means for distinguishing an input cell into a data cell and an OAM cell or a control cell; Cell copying means for receiving a multicasting cell having a group address value and performing a multicasting function; OAM processing means for processing the OAM cell input from the cell discriminating means; Connection control means for processing a control cell input from said cell discriminating means; Header conversion and DA for converting the VIP / VCI / MID value according to the destination address (DA) of the data cell inputted from the cell discriminating means and providing it to the cell copying means, OAM processing means and connection control means. Processing means; And cell division and multiplexing means for receiving the outputs of the cell copying means, the OAM processing means and the connection control means, separating the multicasting cells, returning them to the cell copying means, and multiplexing the data cells and the multicasting and control cells. Connectionless server system having an optional motion sickening function, characterized in that. 제1항에 있어서, 상기 헤더 변환 및 DA 처리 수단은, 셀 구분 수단으로부터 입력되는 BOM/SSM셀의 VPI(Virtual Path Identifier), VCI(Virtual Channel Identifier), MID(Multiplexing Identifier), 그리고 DA에 의해 얻어진 출력 VPIo/VCIo/MIDo/MIo를 헤더 맵핑 테이블(Header Mapping Table) (41)에 저장하는 DA 처리수단; 및 상기 헤더 맵핑 테이블(Header Mapping Table)을 검색하여 이에 대응된 VPIo/VCIo/MIDo/MIo 값을 읽어낸 후 이값으로 셀 헤더값을 대세시키는 헤더 변환 수단을 구비하는 것을 특징으로 하는 선택적인 멀티캐스팅 기능을 가지는 비연결형 서버 시스템.The method of claim 1, wherein the header conversion and DA processing means is performed by a Virtual Path Identifier (VPI), a Virtual Channel Identifier (VCI), a Multiplexing Identifier (MID), and a DA of a BOM / SSM cell inputted from a cell separator. DA processing means for storing the obtained output VPIo / VCIo / MIDo / MIo in a header mapping table 41; And a header converting means for searching the header mapping table, reading a VPIo / VCIo / MIDo / MIo value corresponding to the header mapping table, and then substituting the cell header value accordingly. Connectionless server system with features. 제2항에 있어서, 상기 헤더 변환 수단은, HEC의 소정 비트중 임의의 비트를 MI(Multicasting Indicationbit)로 하여 그룹주소임을 나타내는 것을 특징으로 하는 선택적인 멀미캐스팅 기능을 가지는 비연결형 서버 시스템.3. The connectionless server system according to claim 2, wherein the header converting means indicates a group address using any of the predetermined bits of the HEC as a multicasting indication bit (MI). 제1항에 있어서, 상기 셀 복사 수단은, 입력되는 멀티캐스팅 셀의 VCI 및 MID 값을 검사하는 읽기 버퍼; 하나의 CLNAP-PDU를 구성하는 모든 셀이 도착할 때까지 상기 VCI 및 MID 값에 따라 해당 위치에 셀을 일시적으로 저장하는 메세지 큐; 상기 메세지 큐로부터 동일하나 VCI/MID 값을 가진 셀들을 입력받아 쓰기 버퍼를 통해 출력하도록 하는 셀 복제부를 구비하는 것을 특징으로 하는 선택적인 멀미캐스팅 기능을 가지는 비연결형 서버 시스템.2. The apparatus of claim 1, wherein the cell copying means comprises: a read buffer for checking VCI and MID values of an input multicasting cell; A message queue for temporarily storing cells in corresponding positions according to the VCI and MID values until all cells constituting one CLNAP-PDU arrive; And a cell replication unit for receiving the same cells having the VCI / MID value from the message queue and outputting them through a write buffer. 제4항에 있어서, 상기 메세지 큐는, 새로운 CLNAP-PDU를 구성하는 BOM 셀이 도착하면 새로운 큐에 연속하여 입력되는 동안 동일한 VCI/MID 값을 가진 셀들을 저장하며 EOM 셀이 도착하면 모든 셀들을 셀 복제부로 전달하는 것을 특징으로 하는 선택적인 멀미캐스팅 기능을 가지는 비연결형 서버 시스템.5. The message queue of claim 4, wherein the message queue stores cells having the same VCI / MID value while successively entering the new queue when the BOM cell constituting the new CLNAP-PDU arrives and all cells when the EOM cell arrives. Connectionless server system having an optional motion sickening function, characterized in that the transfer to the cell replica. 제4항에 있어서, 상기 셀 복제부는, GA_ID(VCI)가 인덱스 테이블과 그룹 맵핑 테이블를 구성되고, GA_ID를 인덱스로 하여 GA 인덱스 테이블을 읽어 GA 테이블 주소를 얻고, GA 테이블 주소에 따라 그룹 맵핑 테이블에서 따른 주소에 따라 그룹주소 셀이 GA 결과 개별 주소 단말로 전해지는 셀을 구성된 복사 레지스터으로 저장하며, MID에 특정 값으로 셋트되고, GA 테이블이 가가 GA에 대해 그 GA에 속한 모든 단말의 개별주소값과 그 주소에 대응하는 VPI/VCI 값을 가지고 있어서 GA 테이블의 시작번지에 있는 첫번째 입력부터 VPI/VCI 값과 IA 값을 읽어 복사 레지스터의 VPI/VCI 부 및 어드레스 부에 쓰기한 후 복사 레지스터에 있는 셀을 전송하고, 셀 복제가 그룹 맵핑 테이블의 마지막 엔트리까지 반복되는데, VPI/VCI가 셀 타입에 관계없이 쓰기되나 주소 값을 셀타입이 BOM/SSM인 경우에만 쓰기되고, 그외의 경우에는 쓰기되지 않는 것을 특징으로 하는 선택적인 멀미캐스팅 기능을 가지는 비연결형 서버 시스템.The method according to claim 4, wherein the cell replicating unit has a GA_ID (VCI) configured as an index table and a group mapping table, and obtains a GA table address by reading a GA index table using GA_ID as an index, and obtaining a GA table address according to the GA table address. According to the address, the group address cell stores the cell transmitted to the individual address terminal as a result of GA, and is set to a specific value in the MID, and the GA table is the individual address value of all terminals belonging to the GA for GA. And the VPI / VCI value corresponding to the address, so that the VPI / VCI value and IA value are read from the first input at the start address of the GA table and written to the VPI / VCI part and the address part of the copy register, and then The cell is transferred, and cell replication is repeated until the last entry in the group mapping table. VPI / VCI is written regardless of the cell type, but the address value is set to B. Connectionless server system with an optional motion casting function, characterized in that it is written only in the case of OM / SSM, and not otherwise. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950053958A 1995-12-22 1995-12-22 Communicationless server system having selective multicasting function KR0150529B1 (en)

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KR1019950053958A KR0150529B1 (en) 1995-12-22 1995-12-22 Communicationless server system having selective multicasting function
FR9615645A FR2742958B1 (en) 1995-12-22 1996-12-19 CONNECTIONLESS SERVER SYSTEM HAVING SELECTIVE MULTICAST FUNCTION

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KR1019950053958A KR0150529B1 (en) 1995-12-22 1995-12-22 Communicationless server system having selective multicasting function

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KR0150529B1 KR0150529B1 (en) 1998-11-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100549476B1 (en) * 2003-04-10 2006-02-08 가부시키가이샤 덴소 Transmitter for remote control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100549476B1 (en) * 2003-04-10 2006-02-08 가부시키가이샤 덴소 Transmitter for remote control system

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KR0150529B1 (en) 1998-11-02
FR2742958A1 (en) 1997-06-27
FR2742958B1 (en) 1998-04-17

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