JPS57106259A - Control system for transmission of confirmation packet on loop transmission line - Google Patents

Control system for transmission of confirmation packet on loop transmission line

Info

Publication number
JPS57106259A
JPS57106259A JP55182190A JP18219080A JPS57106259A JP S57106259 A JPS57106259 A JP S57106259A JP 55182190 A JP55182190 A JP 55182190A JP 18219080 A JP18219080 A JP 18219080A JP S57106259 A JPS57106259 A JP S57106259A
Authority
JP
Japan
Prior art keywords
confirmation packet
transmission
time
transmission line
confirmation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55182190A
Other languages
Japanese (ja)
Other versions
JPS6361813B2 (en
Inventor
Mitsuru Ueda
Ryozo Sakai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
KDDI Corp
Original Assignee
Fujitsu Ltd
Kokusai Denshin Denwa KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd, Kokusai Denshin Denwa KK filed Critical Fujitsu Ltd
Priority to JP55182190A priority Critical patent/JPS57106259A/en
Publication of JPS57106259A publication Critical patent/JPS57106259A/en
Publication of JPS6361813B2 publication Critical patent/JPS6361813B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To improve the use efficiency of a loop transmission line, by controlling the transmission time of a confirmation packet. CONSTITUTION:When a CPU3 designates a destination and requests a communication control device 4 to transmit a confirmation packet, a destination discriminating processing part 6 of the device 4 inspects the type of a subsystem to which the confirmation packet should be transmitted, and the inspection result is sent to a confirmation packet transmission time calculating part 7. The calculating part 7 calculates a time from the data packet transmission to the confirmation packet transmission on a basis of destination discrimination information, and after the calculated time from the time of the data packet transmission, the calculating part 7 requests a confirmation packet output part 8 to transmit the confirmation packet. The confirmation packet from the output part 8 is transmitted onto a loop transmission line 2 through a highway control part 9.
JP55182190A 1980-12-22 1980-12-22 Control system for transmission of confirmation packet on loop transmission line Granted JPS57106259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55182190A JPS57106259A (en) 1980-12-22 1980-12-22 Control system for transmission of confirmation packet on loop transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55182190A JPS57106259A (en) 1980-12-22 1980-12-22 Control system for transmission of confirmation packet on loop transmission line

Publications (2)

Publication Number Publication Date
JPS57106259A true JPS57106259A (en) 1982-07-02
JPS6361813B2 JPS6361813B2 (en) 1988-11-30

Family

ID=16113903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55182190A Granted JPS57106259A (en) 1980-12-22 1980-12-22 Control system for transmission of confirmation packet on loop transmission line

Country Status (1)

Country Link
JP (1) JPS57106259A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510594A (en) * 1983-03-31 1985-04-09 At&T Bell Laboratories Loop-around testing facilities for a multiline protocol controller
US4536877A (en) * 1983-01-21 1985-08-20 E-Systems, Inc. Tack-on acknowledgment in computer networks
US4584679A (en) * 1983-01-21 1986-04-22 E-Systems, Inc. Tack-on acknowledgement in computer networks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342602A (en) * 1976-09-30 1978-04-18 Fujitsu Ltd Transmission control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342602A (en) * 1976-09-30 1978-04-18 Fujitsu Ltd Transmission control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536877A (en) * 1983-01-21 1985-08-20 E-Systems, Inc. Tack-on acknowledgment in computer networks
US4584679A (en) * 1983-01-21 1986-04-22 E-Systems, Inc. Tack-on acknowledgement in computer networks
US4510594A (en) * 1983-03-31 1985-04-09 At&T Bell Laboratories Loop-around testing facilities for a multiline protocol controller

Also Published As

Publication number Publication date
JPS6361813B2 (en) 1988-11-30

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