CN110073632A - 对网络设备进行同步的方法以及网络设备 - Google Patents

对网络设备进行同步的方法以及网络设备 Download PDF

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Publication number
CN110073632A
CN110073632A CN201780062950.9A CN201780062950A CN110073632A CN 110073632 A CN110073632 A CN 110073632A CN 201780062950 A CN201780062950 A CN 201780062950A CN 110073632 A CN110073632 A CN 110073632A
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China
Prior art keywords
ssm
clock
value
code
network equipment
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CN201780062950.9A
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CN110073632B (zh
Inventor
吕京飞
张亚伟
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/12—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • 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
    • H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

提供了一种对网络设备进行同步的方法。所述方法包括：网络设备接收第一SSM和第二SSM，所述第一SSM携带用于指示第一时钟源的质量等级的第一SSM码以及用于指示所述第一时钟源的质量等级的第一eSSM码，所述第二SSM携带用于指示第二时钟源的质量等级的第二SSM码，所述第二SSM缺少用于指示所述第二时钟源的质量等级的eSSM码，所述第一SSM码的值等于所述第二SSM码的值。当所述第一eSSM码的值小于0xFF时，所述网络设备根据所述第一时钟源的定时信号校准所述网络设备的频率。此外，还提供网络设备以及计算机程序产品。上述方案可以使得网络设备选择出时钟同步精度较高的同步源。

Description

PCT国内申请，说明书已公开。

Claims (13)

  1. PCT国内申请，权利要求书已公开。
CN201780062950.9A 2017-11-24 2017-11-24 对网络设备进行同步的方法以及网络设备 Active CN110073632B (zh)

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PCT/CN2017/112914 WO2019100336A1 (zh) 2017-11-24 2017-11-24 对网络设备进行同步的方法以及网络设备

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CN110073632A true CN110073632A (zh) 2019-07-30
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US (2) US11272003B2 (zh)
EP (1) EP3703303A4 (zh)
CN (1) CN110073632B (zh)
WO (1) WO2019100336A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111163027B (zh) * 2019-12-26 2022-05-31 哈尔滨海能达科技有限公司 同步检测方法及装置
CN113518420B (zh) * 2020-04-09 2023-04-07 华为技术有限公司 通信方法以及通信装置
WO2021253339A1 (en) * 2020-06-18 2021-12-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for synchronization source selection
CN112713956B (zh) * 2020-12-31 2022-12-02 广东大普通信技术股份有限公司 一种同步以太网的频率选择方法、装置、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101641889A (zh) * 2007-03-20 2010-02-03 马维尔国际贸易有限公司 同步网络设备
CN102208958A (zh) * 2011-07-04 2011-10-05 瑞斯康达科技发展股份有限公司 同步以太网的时钟同步及同步信息收发方法、装置和设备
CN102714559A (zh) * 2009-11-19 2012-10-03 瑞典爱立信有限公司 同步网络的配置
CN105471537A (zh) * 2014-09-05 2016-04-06 北京华为数字技术有限公司 一种时钟隔离的方法和装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6574245B1 (en) * 1997-12-26 2003-06-03 Lucent Technologies Inc. Enhanced synchronization status messaging
EP1052793B8 (en) * 1999-05-11 2009-04-01 Canon Kabushiki Kaisha Method and device for synchronisation between two networks
GB2355898B (en) * 1999-10-26 2002-07-03 Marconi Comm Ltd Communications system
US7660332B2 (en) * 2002-02-05 2010-02-09 Symmetricom, Inc. Supporting synchronization status messages on building integrated timing supply synchronization supply unit remote shelves
EP2131530A4 (en) * 2007-03-29 2014-03-26 Fujitsu Ltd NETWORK ELEMENT
CN101286835B (zh) * 2007-04-11 2013-03-20 华为技术有限公司 一种时钟跟踪的方法、装置及网元设备
US9112629B2 (en) * 2009-12-17 2015-08-18 Telefonaktiebolaget L M Ericsson (Publ) Configuration of synchronisation network having synchronization trails for time sync and frequency sync
CN102130766B (zh) * 2010-01-15 2013-12-04 华为技术有限公司 一种同步以太网时钟跟踪的方法、设备及系统
CN102006158B (zh) * 2010-11-29 2016-03-30 中兴通讯股份有限公司 时钟同步方法及系统
CN102368696B (zh) 2011-09-14 2014-07-30 杭州华三通信技术有限公司 一种选择同步时钟源的方法及装置
CN103716106B (zh) * 2012-09-28 2017-08-29 华为技术有限公司 时钟同步方法、系统及设备
US9154292B2 (en) * 2012-11-28 2015-10-06 Mitsubishi Electric Corporation Communication apparatus, communication system, and time synchronization method
CN103916423A (zh) 2012-12-31 2014-07-09 华为技术有限公司 数据同步方法及设备
WO2014169458A1 (en) * 2013-04-18 2014-10-23 Telefonaktiebolaget L M Ericsson (Publ) Node and method for selecting synchronization source
CN104426645A (zh) * 2013-09-02 2015-03-18 华为技术有限公司 确定以太时钟源的方法和装置
JP6326907B2 (ja) * 2014-03-27 2018-05-23 富士通株式会社 伝送システム、伝送装置及びクロック同期方法
US9608751B2 (en) * 2015-03-18 2017-03-28 Accedian Networks Inc. Simplified synchronized Ethernet implementation
CN106656387B (zh) * 2015-10-30 2018-09-07 华为技术有限公司 用于检测时钟同步路径的方法、节点及系统
RU2019112760A (ru) * 2016-09-30 2020-10-30 Телефонактиеболагет Лм Эрикссон (Пабл) Адаптация между синхронным и асинхронным режимами работы на основе нумерологии
CN110651446B (zh) * 2017-06-02 2022-09-20 索尼公司 无线装置和无线装置处理方法
US11411666B2 (en) * 2020-05-19 2022-08-09 Juniper Networks, Inc. Clock fault detection and correction between synchronized network devices

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101641889A (zh) * 2007-03-20 2010-02-03 马维尔国际贸易有限公司 同步网络设备
CN102714559A (zh) * 2009-11-19 2012-10-03 瑞典爱立信有限公司 同步网络的配置
CN102208958A (zh) * 2011-07-04 2011-10-05 瑞斯康达科技发展股份有限公司 同步以太网的时钟同步及同步信息收发方法、装置和设备
CN105471537A (zh) * 2014-09-05 2016-04-06 北京华为数字技术有限公司 一种时钟隔离的方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INTERNATIONAL COMMUNICATION UNION: "Distribution of timing information through packet networks", 《ITU-T 》 *

Also Published As

Publication number Publication date
US20220174113A1 (en) 2022-06-02
CN110073632B (zh) 2021-05-04
US11750698B2 (en) 2023-09-05
EP3703303A4 (en) 2020-12-02
WO2019100336A1 (zh) 2019-05-31
US20200287969A1 (en) 2020-09-10
US11272003B2 (en) 2022-03-08
EP3703303A1 (en) 2020-09-02

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