DE69933594T2 - Verbesserungen der Zeitsynchronisierung in verteilten Systemen - Google Patents

Verbesserungen der Zeitsynchronisierung in verteilten Systemen Download PDF

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Publication number
DE69933594T2
DE69933594T2 DE69933594T DE69933594T DE69933594T2 DE 69933594 T2 DE69933594 T2 DE 69933594T2 DE 69933594 T DE69933594 T DE 69933594T DE 69933594 T DE69933594 T DE 69933594T DE 69933594 T2 DE69933594 T2 DE 69933594T2
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DE
Germany
Prior art keywords
timing data
data packet
local
circuit
node
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.)
Expired - Fee Related
Application number
DE69933594T
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German (de)
English (en)
Other versions
DE69933594D1 (de
Inventor
John C. Eidson
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Agilent Technologies Inc
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Agilent Technologies Inc
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 Agilent Technologies Inc filed Critical Agilent Technologies Inc
Publication of DE69933594D1 publication Critical patent/DE69933594D1/de
Application granted granted Critical
Publication of DE69933594T2 publication Critical patent/DE69933594T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/14—Time supervision arrangements, e.g. real time clock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0664—Clock or time synchronisation among packet nodes using timestamps unidirectional timestamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0673—Clock or time synchronisation among packet nodes using intermediate nodes, e.g. modification of a received timestamp before further transmission to the next packet node, e.g. including internal delay time or residence time into the packet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
    • H04J3/0697—Synchronisation in a packet node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
DE69933594T 1998-09-10 1999-06-10 Verbesserungen der Zeitsynchronisierung in verteilten Systemen Expired - Fee Related DE69933594T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US151017 1998-09-10
US09/151,017 US6278710B1 (en) 1998-09-10 1998-09-10 Enhancements to time synchronization in distributed systems

Publications (2)

Publication Number Publication Date
DE69933594D1 DE69933594D1 (de) 2006-11-23
DE69933594T2 true DE69933594T2 (de) 2007-02-01

Family

ID=22536990

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69933594T Expired - Fee Related DE69933594T2 (de) 1998-09-10 1999-06-10 Verbesserungen der Zeitsynchronisierung in verteilten Systemen
DE69930806T Expired - Fee Related DE69930806T2 (de) 1998-09-10 1999-06-10 Verbesserungen der Zeitsynchronisierung in verteilten Systemen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69930806T Expired - Fee Related DE69930806T2 (de) 1998-09-10 1999-06-10 Verbesserungen der Zeitsynchronisierung in verteilten Systemen

Country Status (4)

Country Link
US (1) US6278710B1 (enExample)
EP (2) EP1564919B1 (enExample)
JP (1) JP2000099485A (enExample)
DE (2) DE69933594T2 (enExample)

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US20040008973A1 (en) * 2002-07-12 2004-01-15 Marshall Robert Alexander Method and system for synchronizing operation of remote timer with centeral control control unit
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US7315791B2 (en) * 2004-02-18 2008-01-01 National Instruments Corporation Application programming interface for synchronizing multiple instrumentation devices
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US7990887B2 (en) * 2006-02-22 2011-08-02 Cisco Technology, Inc. Sampling test of network performance
US20080031283A1 (en) * 2006-08-07 2008-02-07 Martin Curran-Gray Time synchronization for network aware devices
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EP2034642B1 (de) * 2007-09-07 2011-10-26 Siemens Aktiengesellschaft Verfahren zur Übertragung von Synchronisationsnachrichten in einem Kommunikationsnetz
US8559412B1 (en) 2007-12-31 2013-10-15 Rockstar Consortium Us Lp Communication time information in a network to enable synchronization
WO2009098757A1 (ja) * 2008-02-05 2009-08-13 Fujitsu Limited フレームロス測定方法、システムおよび装置
US8073976B2 (en) 2008-03-27 2011-12-06 Microsoft Corporation Synchronizing clocks in an asynchronous distributed system
JP5370870B2 (ja) 2008-06-02 2013-12-18 ティティーテフ コンピュータテクニーク アクティエンゲゼルシャフト 分散形コンピュータネットワーク内のローカルクロックに同期させるための方法
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US9756153B2 (en) 2011-06-01 2017-09-05 Finite State Research Llc Method for improving accuracy in computation of one-way transfer time for network time synchronization
US8665884B2 (en) 2011-08-25 2014-03-04 Honeywell International Inc. Embedded end-to-end delay information for data networks
US9628209B2 (en) 2013-01-17 2017-04-18 Viavi Solutions Inc. Time synchronization in distributed network testing equipment
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US9723610B2 (en) * 2015-04-07 2017-08-01 Qualcomm Incorporated Multi-layer timing synchronization framework
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Also Published As

Publication number Publication date
JP2000099485A (ja) 2000-04-07
DE69933594D1 (de) 2006-11-23
EP0986202B1 (en) 2006-04-12
EP0986202A3 (en) 2005-02-09
EP0986202A2 (en) 2000-03-15
DE69930806T2 (de) 2006-08-31
EP1564919B1 (en) 2006-10-11
DE69930806D1 (de) 2006-05-24
US6278710B1 (en) 2001-08-21
EP1564919A1 (en) 2005-08-17

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: AGILENT TECHNOLOGIES, INC. (N.D.GES.D. STAATES, US

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee