KR960016257A - How real-time traffic occurs - Google Patents

How real-time traffic occurs Download PDF

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Publication number
KR960016257A
KR960016257A KR1019940028029A KR19940028029A KR960016257A KR 960016257 A KR960016257 A KR 960016257A KR 1019940028029 A KR1019940028029 A KR 1019940028029A KR 19940028029 A KR19940028029 A KR 19940028029A KR 960016257 A KR960016257 A KR 960016257A
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KR
South Korea
Prior art keywords
cell
value
storing
cells
discharged
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Application number
KR1019940028029A
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Korean (ko)
Other versions
KR0123062B1 (en
Inventor
김덕경
장승기
성단근
이윤복
전만영
Original Assignee
양승택
재단법인 한국전자통신연구소
조백제
한국전기통신공사
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Priority to KR1019940028029A priority Critical patent/KR0123062B1/en
Publication of KR960016257A publication Critical patent/KR960016257A/en
Application granted granted Critical
Publication of KR0123062B1 publication Critical patent/KR0123062B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2416—Real-time traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/801—Real time traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5678—Traffic aspects, e.g. arbitration, load balancing, smoothing, buffer management

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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 B-ISDN에서 사용하는 비동기 전송모드(ATM)의 실시간 트래픽 발생 방법에 관한 것으로, 가상 채널에 임의의 갯수의 셀을 발생시키는 제1단계; 저장된 초기셀을 이용하여 임의의 타임슬롯에 셀의 방출 여부와 셀의 종류를 결정하는 제2단계; 방출된 셀에 필요한 정보를 삽입하여 발생기 외부로 방출하여 방출된 셀이 사용자 셀인가를 판단하는 제3단계; 및 방출된 셀이 사용자 셀이면 다음셀 발생부에서 방출된 다음셀을 계산하여 다중화부에 저장하며, 사용자셀이 아니면 저장된 초기셀을 이용하는 단계로 복귀하는 제4단계로 이루어지는 것을 특징으로 하는 실시간 트래픽 발생 방법을 포함하고 있다.The present invention relates to a method for generating real-time traffic in an asynchronous transmission mode (ATM) used in B-ISDN, comprising: a first step of generating an arbitrary number of cells in a virtual channel; A second step of determining whether the cell is released in a certain timeslot and the type of the cell by using the stored initial cell; Inserting necessary information into the discharged cells to release them outside the generator to determine whether the discharged cells are user cells; And when the emitted cell is a user cell, calculates the next cell emitted from the next cell generator and stores the next cell, and stores the multiplexed unit in the multiplexing unit. It includes generation method.

Description

실시간 트래픽 발생 방법How real-time traffic occurs

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명이 적용되는 개략적인 구성도,1 is a schematic configuration diagram to which the present invention is applied;

제2도는 본 발명에 따른 전체 흐름을 개략적으로 나타낸 처리흐름도,2 is a process flow diagram schematically showing the overall flow according to the present invention,

제3도는 다음셀 발생부의 룩업데이블 구성도,3 is a lookuptable configuration diagram of the next cell generation unit,

제4도는 다음셀 발생시간 계산 방법의 처리 흐름도.4 is a flowchart illustrating a method of calculating a next cell generation time.

Claims (5)

가상채널에 임의의 갯수의 셀을 발생시키는 제1단계; 저장된 초기셀을 이용하여 임의의 타임슬롯에 셀의 방출 여부와 셀의 종류를 결정하는 제2단계; 방출된 셀에 필요한 정보를 삽입하여 발생기 외부로 방출하여 방출된 셀이 사용자 셀인가를 판단하는 제3단계; 및 방출된 셀이 사용자 셀이면 다음셀 발생부에서 방출된 다음셀을 계산하여 다중화부에 저장하며, 사용자셀이 아니면 저장된 초기셀을 이용하는 단계로 복귀하는 제4단계로 이루어지는 것을 특징으로 하는 실시간 트래픽 발생 방법.Generating a predetermined number of cells in the virtual channel; A second step of determining whether the cell is released in a certain timeslot and the type of the cell by using the stored initial cell; Inserting necessary information into the discharged cells to release them outside the generator to determine whether the discharged cells are user cells; And when the emitted cell is a user cell, calculates the next cell emitted from the next cell generator and stores the next cell, and stores the multiplexed unit in the multiplexing unit. How it happens. 제1항에 있어서, 다음셀 시간 계산 과정은, 다중화 메모리에서 방출된 소정의 셀에 균일 분포를 갖는 난수를 발생하는 단계; 룩업 테이블 참조주소를 계산하여 다음셀 발생 간격을 계산하는 단계; 및 새로이 계산된 값으로 과거 메모리를 갱신하여 다중화메모리에 새로운 셀을 입력하는 단계를 포함하는 것을 특징으로 하는 실시간 트래픽 발생 방법.The method of claim 1, wherein the next cell time calculation process comprises: generating a random number having a uniform distribution in a predetermined cell emitted from the multiplexed memory; Calculating a next cell generation interval by calculating a lookup table reference address; And updating the old memory with a newly calculated value to input a new cell into the multiplexed memory. 제1항에 있어서, 셀의 방출 과정은, 방출된 셀이 있는가에 따라 방출된 셀이 없으면 끝내고 방출된 셀이 있으면 해당 출력리스트 헤드를 읽어 포인터부에 저장하는 단계; 새로운 출력리스트 헤드를 프리리스트테일에 대입하여 다음 값을 갱신하여 방출된 셀에 정보를 삽입하고 종료하는 단계를 포함하는 것을 특징으로 하는 실시간 트래픽 발생 방법.The method of claim 1, wherein the discharging process of the cell comprises: if no cell is discharged according to whether the cell is discharged, and if the cell is discharged, reading the corresponding output list head and storing it in the pointer unit; And inserting information into the released cell by updating a next value by inserting a new output list head into the pre-listed tail and ending the real-time traffic generation method. 제1항에 있어서, 다음셀을 저장하는 과정은, 렌다에서 테일에 위치한 캘린더 헤드와 테일값을 읽어 이전에 저장된 값이 있었는가를 판단하는 단계; 이전에 저장된 값이 없으면 주소가 저장되어 있는 값을 프리리스트 헤드에 저장하고 다음 값을 계산하여 갱신한 후 종료하는 단계; 이전에 저장된 값이 있으면 캘린더헤드와 테일에 프리리스트 헤드값을 저장하고 다음값을 계산하여 갱신한 후 종료하는 단계를 포함하는 것을 특징으로 하는 실시간 트래픽 발생 방법.The method of claim 1, wherein the storing of the next cell comprises: reading a calendar head and a tail value located at a tail from a renderer to determine whether a previously stored value exists; If there is no previously stored value, storing the value in which the address is stored in the prelist head, calculating and updating the next value, and then ending; If there is a previously stored value, storing the freelist head value in the calendar head and tail, calculating and updating the next value, and then terminating. 제1항에 있어서, 초기 셀 발생 과정은, 가상채널의 초기에 발생시켜야 할 갯수를 읽어 메모리에 저장하는 단계; 다음셀 발생시간 계산과정을 수행하는 단계; 다음셀 저장 과정을 수행하는 단계; 발생시켜야할 갯수를 순차로 감소시기면서 초기셀을 발생시키는 단계; 를 포함하는 것을 특징으로 하는 실시간 트래픽 발생 방법.The method of claim 1, wherein the initial cell generation process comprises: reading a number to be generated at an initial stage of the virtual channel and storing the number in a memory; Performing a next cell generation time calculation process; Performing a next cell storing process; Generating an initial cell while sequentially decreasing the number to be generated; Real-time traffic generation method comprising a. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940028029A 1994-10-28 1994-10-28 Real time traffic generation method KR0123062B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940028029A KR0123062B1 (en) 1994-10-28 1994-10-28 Real time traffic generation method

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Application Number Priority Date Filing Date Title
KR1019940028029A KR0123062B1 (en) 1994-10-28 1994-10-28 Real time traffic generation method

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KR960016257A true KR960016257A (en) 1996-05-22
KR0123062B1 KR0123062B1 (en) 1997-11-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100338961B1 (en) * 1999-04-21 2002-05-30 최종하 Method of asynchronous transfer mode cell generator with constant cell rate
KR20020053344A (en) * 2000-12-27 2002-07-05 이계안 Repairing system and repairing method for the probability strengthen learning algorism
KR20190051465A (en) * 2017-11-07 2019-05-15 현대모비스 주식회사 Diagnostic apparatus and method for air conditioning noise of vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100338961B1 (en) * 1999-04-21 2002-05-30 최종하 Method of asynchronous transfer mode cell generator with constant cell rate
KR20020053344A (en) * 2000-12-27 2002-07-05 이계안 Repairing system and repairing method for the probability strengthen learning algorism
KR20190051465A (en) * 2017-11-07 2019-05-15 현대모비스 주식회사 Diagnostic apparatus and method for air conditioning noise of vehicle

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Publication number Publication date
KR0123062B1 (en) 1997-11-24

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