NO20002884L - Method and apparatus for distributing timing information in a computer network - Google Patents

Method and apparatus for distributing timing information in a computer network

Info

Publication number
NO20002884L
NO20002884L NO20002884A NO20002884A NO20002884L NO 20002884 L NO20002884 L NO 20002884L NO 20002884 A NO20002884 A NO 20002884A NO 20002884 A NO20002884 A NO 20002884A NO 20002884 L NO20002884 L NO 20002884L
Authority
NO
Norway
Prior art keywords
time
network
network element
method
distributing
Prior art date
Application number
NO20002884A
Other languages
Norwegian (no)
Other versions
NO20002884D0 (en
Inventor
Oeyvind Holmeide
Lennart Liljestroem
Original Assignee
Ontime Networks As
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 Ontime Networks As filed Critical Ontime Networks As
Priority to NO20002884A priority Critical patent/NO20002884L/en
Publication of NO20002884D0 publication Critical patent/NO20002884D0/en
Publication of NO20002884L publication Critical patent/NO20002884L/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/0635Clock or time synchronisation in a network
    • H04J3/0638Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658Clock or time synchronisation among packet nodes
    • H04J3/0661Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/0635Clock or time synchronisation in a network
    • H04J3/0638Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658Clock or time synchronisation among packet nodes
    • H04J3/0673Clock 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

Abstract

Den foreliggende oppfinnelsen vedrører et integrert nettverkselement og tidsserver for distribusjon av tidsinformasjon i et datamaskinnettverk. The present invention relates to an integrated network element and the time server distributing time information in a computer network. Nettverkselementet omfatter midler for å rute datapakker mellom kommunikasjonsporter, såvel som en lokal klokke og midler for å generere tidsoppdateringsforespørselspakker og tidsoppdaterings- svarpakker. The network element includes means for routing data packets between communications ports, as well as a local clock and means for generating time update request packets and tidsoppdaterings- reply packets. Den tette integrasjon av kommunikasjonstjenester og tidstjenester setter det integrerte nettverkselementet og tidsserver i stand til å distribuere tidsoppdateringsinformasjon samtidig med at unøyaktigheter som resulterer fra svitsjing eller rutingsoperasjoner unngås. The tight integration of communication and time services puts the integrated network element and the time server capable of distributing time update information simultaneously with the inaccuracies resulting from switching or routing operations are avoided. Det er også beskrevet en fremgangsmåte for å synkronisere de lokale klokker for noder i et kommunikasjonsnettverk, som benytter seg av egenskapene for det integrerte nettverkselement og tidsserver. There is also disclosed a method for synchronizing the local clocks of nodes in a communication network, which uses the characteristics of the integrated network element and the time server. Fremgangsmåten tilveiebringer automatisk konfigurering av en tidsoppdateringsstruktur i nettverket, slik at tidsoppdateringsinformasjonen distribueres fra en eller flere master-tidsservere, med integrerte nettverkselementer og tidsservere virkende som slave-tidsservere som sender tidsoppdateringsinformasjonen videre gjennom nettverket. The method provides automatic configuration of a time update structure of the network, so that the time the update information distributed from one or more master time servers, with integrated network elements and time servers acting as slave time servers transmitting time update information on the network.
NO20002884A 2000-06-06 2000-06-06 Method and apparatus for distributing timing information in a computer network NO20002884L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20002884A NO20002884L (en) 2000-06-06 2000-06-06 Method and apparatus for distributing timing information in a computer network

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20002884A NO20002884L (en) 2000-06-06 2000-06-06 Method and apparatus for distributing timing information in a computer network
AU8268601A AU8268601A (en) 2000-06-06 2001-06-06 Distributing time information
PCT/NO2001/000234 WO2001095550A2 (en) 2000-06-06 2001-06-06 Distributing time information in a communication network

Publications (2)

Publication Number Publication Date
NO20002884D0 NO20002884D0 (en) 2000-06-06
NO20002884L true NO20002884L (en) 2001-12-07

Family

ID=19911231

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002884A NO20002884L (en) 2000-06-06 2000-06-06 Method and apparatus for distributing timing information in a computer network

Country Status (3)

Country Link
AU (1) AU8268601A (en)
NO (1) NO20002884L (en)
WO (1) WO2001095550A2 (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7196660B2 (en) * 2000-11-17 2007-03-27 Global Locate, Inc Method and system for determining time in a satellite positioning system
US6937187B2 (en) 2000-11-17 2005-08-30 Global Locate, Inc. Method and apparatus for forming a dynamic model to locate position of a satellite receiver
US7058149B2 (en) 2001-12-14 2006-06-06 Freescale Semiconductor, Inc. System for providing a calibrated clock and methods thereof
US7251199B2 (en) 2001-12-24 2007-07-31 Agilent Technologies, Inc. Distributed system time synchronization including a timing signal path
AT411948B (en) 2002-06-13 2004-07-26 Fts Computertechnik Gmbh Communication method and apparatus for transmitting time-controlled and event-driven news ethernet
DE10249296A1 (en) * 2002-10-22 2004-05-06 Jetter Ag Method for synchronizing users of a network
DE10260807B4 (en) * 2002-12-23 2007-07-05 Siemens Ag A transmission method for a time reference via a transmission medium, and hereby corresponding timer block
DE102004012207B3 (en) * 2004-03-12 2005-10-06 Siemens Ag Synchronization of base stations over a network
JP4161936B2 (en) 2004-04-27 2008-10-08 ソニー株式会社 Time setting system, time setting method
US7633870B2 (en) 2005-04-18 2009-12-15 Symmetricom, Inc. Network forwarding device and method that forward timing packets through the device with a constant delay
US8938671B2 (en) 2005-12-16 2015-01-20 The 41St Parameter, Inc. Methods and apparatus for securely displaying digital images
US8315274B2 (en) 2006-03-29 2012-11-20 Honeywell International Inc. System and method for supporting synchronous system communications and operations
US8151327B2 (en) 2006-03-31 2012-04-03 The 41St Parameter, Inc. Systems and methods for detection of session tampering and fraud prevention
US7899894B2 (en) 2006-08-30 2011-03-01 International Business Machines Corporation Coordinated timing network configuration parameter update procedure
EP1931101A1 (en) 2006-12-05 2008-06-11 Abb Research Ltd. Time synchronisation in a computer based process control system
US7783913B2 (en) 2007-01-31 2010-08-24 International Business Machines Corporation Facilitating recovery in a coordinated timing network
US7689718B2 (en) 2007-01-31 2010-03-30 International Business Machines Corporation Channel subsystem server time protocol commands and system therefor
US8738792B2 (en) 2007-01-31 2014-05-27 International Business Machines Corporation Server time protocol messages and methods
US9112626B2 (en) 2007-01-31 2015-08-18 International Business Machines Corporation Employing configuration information to determine the role of a server in a coordinated timing network
US7797414B2 (en) 2007-01-31 2010-09-14 International Business Machines Corporation Establishing a logical path between servers in a coordinated timing network
US7783736B2 (en) 2007-01-31 2010-08-24 International Business Machines Corporation Definition of an active stratum-1 server in a coordinated timing network
US9060012B2 (en) 2007-09-26 2015-06-16 The 41St Parameter, Inc. Methods and apparatus for detecting fraud with time based computer tags
GB2454937A (en) * 2007-11-23 2009-05-27 Ubiquisys Ltd Acquiring time references for a telecommunications basestation from a time server
US7925916B2 (en) 2008-04-10 2011-04-12 International Business Machines Corporation Failsafe recovery facility in a coordinated timing network
US8416811B2 (en) 2008-04-10 2013-04-09 International Business Machines Corporation Coordinated timing network having servers of different capabilities
US9390384B2 (en) 2008-07-01 2016-07-12 The 41 St Parameter, Inc. Systems and methods of sharing information through a tagless device consortium
US7873862B2 (en) 2008-10-21 2011-01-18 International Business Machines Corporation Maintaining a primary time server as the current time server in response to failure of time code receivers of the primary time server
US9112850B1 (en) 2009-03-25 2015-08-18 The 41St Parameter, Inc. Systems and methods of sharing information through a tag-based consortium
DK2497211T3 (en) * 2009-10-29 2017-03-06 ERICSSON TELEFON AB L M (publ) Method and device for optimizing the transport of a synchronization packet
WO2012054646A2 (en) 2010-10-19 2012-04-26 The 41St Parameter, Inc. Variable risk engine
US9633201B1 (en) 2012-03-01 2017-04-25 The 41St Parameter, Inc. Methods and systems for fraud containment
US9521551B2 (en) 2012-03-22 2016-12-13 The 41St Parameter, Inc. Methods and systems for persistent cross-application mobile device identification
WO2014078569A1 (en) 2012-11-14 2014-05-22 The 41St Parameter, Inc. Systems and methods of global identification
US9910419B2 (en) 2013-09-09 2018-03-06 Harnischfeger Technologies, Inc. System and method of synchronizing time between multiple systems
US10091312B1 (en) 2014-10-14 2018-10-02 The 41St Parameter, Inc. Data structures for intelligently resolving deterministic and probabilistic device identifiers to device profiles and/or groups
US20180109369A1 (en) * 2016-10-14 2018-04-19 General Electric Technology Gmbh Systems and methods for synchronizing time sources within a protection zone of a digital power substation

Also Published As

Publication number Publication date
WO2001095550A2 (en) 2001-12-13
WO2001095550A3 (en) 2002-05-02
AU8268601A (en) 2001-12-17
NO20002884D0 (en) 2000-06-06

Similar Documents

Publication Publication Date Title
CN1211963C (en) Telecommunication network synchronisation
US7079554B2 (en) System and method for synchronizing between communication terminals of asynchronous packets networks
US8014423B2 (en) Reference time distribution over a network
EP0245765B1 (en) Data transfer control system
CN100488087C (en) Master/slave synchronisation method in a bluetooth system
US7689854B2 (en) Method and apparatus for establishing IEEE 1588 clock synchronization across a network element comprising first and second cooperating smart interface converters wrapping the network element
CN100388646C (en) Apparatus and an associated method for facilitating synchronization in a wireless mesh network
KR100720216B1 (en) Method providing distribution means for reference clocks across packetized networks
US6438702B1 (en) Method for providing a precise network time service
US6243388B1 (en) Broadband video switch that performs program merging and method therefor
JP4987346B2 (en) Time synchronization system and method over the network
CN1211953C (en) Method and device for synchronizing base stations of mobile communication network
Moreira et al. White rabbit: Sub-nanosecond timing distribution over ethernet
US7372846B2 (en) Method for transmitting time information via a data packet network
CN102577194B (en) System and method of synchronizing clocks in a distributed network
KR100462477B1 (en) Apparatus of multipoint control protocol processing in Ethernet PON
JP4084196B2 (en) Method and apparatus for synchronizing multiple ttcan- bus cycle time and corresponding bus system
US7602815B2 (en) Using network time protocol in voice over packet transmission
US5923902A (en) System for synchronizing a plurality of nodes to concurrently generate output signals by adjusting relative timelags based on a maximum estimated timelag
US8660152B2 (en) Multi-frame network clock synchronization
US7483450B1 (en) Method and system for link-based clock synchronization in asynchronous networks
US20130051407A1 (en) Inter-Packet Gap Network Clock Synchronization
EP1274213B1 (en) Synchronizing clocks across sub-nets
KR20000075817A (en) Method and apparatus for distributing a cycle clock to a plurality of bus nodes in a bus bridge
KR20070070299A (en) Time synchronous method in residential ethernet system

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application