WO2017118148A1 - 适用于时间同步网的快速部署系统及方法 - Google Patents

适用于时间同步网的快速部署系统及方法 Download PDF

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Publication number
WO2017118148A1
WO2017118148A1 PCT/CN2016/102811 CN2016102811W WO2017118148A1 WO 2017118148 A1 WO2017118148 A1 WO 2017118148A1 CN 2016102811 W CN2016102811 W CN 2016102811W WO 2017118148 A1 WO2017118148 A1 WO 2017118148A1
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synchronization
servo
port
time
unit
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PCT/CN2016/102811
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English (en)
French (fr)
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陈朝辉
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烽火通信科技股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/0635Clock or time synchronisation in a network
    • 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
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/10Active monitoring, e.g. heartbeat, ping or trace-route

Definitions

  • the present invention relates to the field of optical communication networks, and in particular, to a rapid deployment system and method suitable for a time synchronization network.
  • 1588v2 High-Precision Time Synchronization Protocol v2
  • GPS Global Positioning System
  • Time synchronization networks are becoming an important support network.
  • the size of the bearer network expands, the number of nodes in the time synchronization network is also increasing.
  • the nodes in the bearer network adopt the BC (Boundary Clock) clock model.
  • the active/standby time server injects time information into the bearer network, and the bearer network node selects the tracking time source and tracking direction through the BMC (Best Master Clock Algorithm).
  • BMC Best Master Clock Algorithm
  • the number of nodes in the local network often exceeds one thousand, and even reaches thousands of nodes.
  • the workload of manual deployment of time synchronization network is getting bigger and bigger, which is easy to make mistakes.
  • the configuration error of time synchronization network will directly affect the operation of terminal equipment, and it will bring greater pressure to the project opening, and directly lead to the deployment of time synchronization network engineering. Inefficient.
  • the object of the present invention is to overcome the deficiencies of the foregoing background, and to provide a rapid deployment system and method suitable for a time synchronization network, which can realize rapid deployment of a time synchronization network in a project, and significantly reduce the time synchronization of a large-scale deployment of a bearer network. Configuration workload, and Eliminate failures caused by configuration errors.
  • the present invention provides a rapid deployment system suitable for a time synchronization network, the system comprising a servo synchronization initialization unit, a servo synchronization port detection unit, a servo synchronization unit, and a servo synchronization management unit, wherein:
  • the servo synchronization initialization unit is configured to initialize and configure the time synchronization related hardware and chip when the node is powered on, so that after the normal operation, the external interface is initially configured to correctly receive or output the synchronization signal;
  • the 1588 application layer software operation mode is configured to initialize the data set used by the precise time protocol PTP and the BMC protocol stack; then, the servo synchronization port detection unit, the servo synchronization unit, the servo synchronization management unit, and the servo synchronization port detection unit are simultaneously activated. , servo synchronization unit, servo synchronization management unit cycle operation;
  • the servo synchronization port detecting unit is configured to: detect a working and connection state of the line interface, and update the synchronization interface list;
  • the servo synchronization unit includes an announcement message processing module, a servo timer, a synchronization module and a servo module.
  • the servo synchronization unit has two working modes: a servo mode and a synchronous mode, and which mode is determined by the servo timer; the servo synchronization The unit receives and transmits source time information, and performs a servo mode or a synchronization mode according to the source time information detected and received;
  • the servo synchronization management unit is configured to: receive configuration information, perform compensation data setting according to the configuration data, specify a working mode of the port, or stop the servo synchronization mode, enter a normal synchronous operation mode; and also be responsible for configuration response and performance during servo synchronization , status, and alarm reporting.
  • the servo mode is: the synchronization protocol is closed, the source time information is cleared, the external time source is not tracked, and the time information is not sent out; the internal time state is maintained, and the network source time information is maintained. Can quickly switch to the same Step mode.
  • the synchronization mode is: according to the received source time information, the time source and port synchronization status tracked by the node are determined by the best master clock algorithm BMC, and the source time information of the tracking is
  • the port synchronization status submits the advertisement packet processing module, and sends the information to the master port.
  • the node synchronizes the upstream port through the slave clock port. When the slave port does not receive the advertisement packet for a period of time, it will enter the servo mode.
  • the servo synchronization unit when receiving the information of the source clock, the servo synchronization unit enters the synchronous mode, runs the BMC algorithm and the PTP measurement protocol, synchronizes the upstream clock, and sends the source clock information and the time information downstream; If the clock information is lost and the threshold is exceeded, the servo mode is entered.
  • the servo mode belongs to the listening state of the source clock information. The local clock information is not sent out, the upstream clock is stopped, and the source clock information and time information are stopped.
  • the timeout flag is set to “0”, and the servo synchronization unit is notified to operate in the synchronous mode; if the servo timing If the source time information is not received by the device, the timeout flag is set to "1" and the servo synchronization unit is notified to operate in the servo mode.
  • the present invention also provides a rapid deployment method for a time synchronization network based on the above system, comprising the following steps:
  • the servo synchronization initialization unit When the node is powered on, the servo synchronization initialization unit initializes and configures the time synchronization related hardware and chip to make it work normally; initializes the external interface to correctly receive or output the synchronization signal; and runs the 1588 application layer software.
  • the mode is configured to initialize the data set used by the precise time protocol PTP and the BMC algorithm protocol stack; then simultaneously start the servo synchronization port detection unit, the servo synchronization unit, the servo synchronization management unit, the servo synchronization port detection unit, the servo synchronization unit, The servo synchronization management unit runs periodically;
  • the servo synchronization port detecting unit detects the working and connection state of the line interface, and updates the synchronization interface list:
  • the line interface When the line interface is enabled and the working and connection status is normal, if there is no alarm, the line interface is added to the synchronization port list.
  • the line interface runs the PTP protocol, and the slave clock slave synchronizes the tracking, and the master clock master sends the time information.
  • the line interface When the line interface is not enabled, or the working or connection status is abnormal, if there is an alarm, the line interface is deleted from the synchronization port list.
  • the servo synchronization port detection unit runs periodically, and the synchronization port list is updated in time;
  • the servo synchronization unit When receiving the information of the source clock, the servo synchronization unit enters the synchronous mode, runs the BMC algorithm and the PTP measurement protocol, synchronizes the upstream clock, and sends the source clock information and the time information downstream; if the source clock information is lost and exceeds the threshold, Enter the servo mode.
  • the servo mode belongs to the listening state of the source clock information. The local clock information is not sent out, the upstream clock is stopped, and the source clock information and time information are stopped.
  • the servo synchronization management unit is responsible for receiving the configuration information, setting the compensation data according to the configuration data, specifying the working mode of the port, or stopping the servo synchronization mode, entering the normal synchronous operation mode; and also being responsible for the configuration response, performance, and status during the servo synchronization. The alarm is reported.
  • the servo synchronization port detecting unit runs periodically, and polls each line port having a time synchronization function to determine whether it works normally and starts the time synchronization function.
  • the specific process is as follows:
  • node port list poll each line port with time synchronization function, check the status of one line port at a time, update the port number after the end, and detect the next port in the list until all ports in the list are Detection, end of detection, repeated detection in the next task cycle;
  • Update the synchronization port list In the synchronization port list, mark the line port that is detected as a synchronization port, and mark the failed line port as an asynchronous port; the synchronization port list is applied to the servo synchronization port detection unit and the servo synchronization unit. In the servo synchronization management unit, only the line ports labeled as synchronization ports can be synchronized.
  • the advertisement packet processing module transmits source time information by receiving and sending an advertisement packet, and the advertisement packet is used to obtain upstream source time information to determine whether to track and track the path;
  • the advertisement message is used to deliver source time information downstream, so that the time information can be transmitted node by node.
  • the process of sending and receiving an advertisement message by the advertisement packet processing module is as follows: when receiving the advertisement message, the advertisement message processing module first determines whether the advertisement message is source clock information, and if the advertisement message is an advertisement message. The source time information is forwarded to the synchronization module for processing. If the source time information is consistent with the current source clock and the receiving port is consistent, or the current working mode is in the servo mode, the servo timer is cleared; if the source clock information is If the source clock is not currently synchronized, the servo timer is not cleared. If the advertisement packet is the time information of the BC node, it is discarded and the servo timer is not operated. The advertisement packet processing module sends a notification. When the message is received, the source clock information provided by the synchronization module is sent from the primary clock port according to the synchronization port status information determined by the synchronization module.
  • the servo synchronization port detecting unit, the servo synchronization unit, and the servo synchronization management unit are turned off or restarted according to the configuration change.
  • the present invention analyzes and refines the engineering application model, and defines a new servo synchronization application mode, which can be configured freely or rarely configured, and the device can be powered on.
  • the node automatically completes the tracking; when the node accesses the network, it can automatically synchronize without configuration.
  • the time information is injected into the bearer network, and the time source source and the tracking direction of the bearer network node are selected by the BMC algorithm.
  • the present invention can not only meet the functional requirements of the fast deployment time synchronization of the bearer network, but also implement time.
  • the rapid deployment of the synchronous network in the project significantly reduces the configuration workload when the large-scale deployment time of the bearer network is synchronized, and eliminates the fault caused by the configuration error.
  • the servo synchronization port detecting unit in the present invention can automatically bind the working line port automatically without configuring the time synchronization working state of each port of the node, thereby realizing time synchronization and significantly reducing the configuration workload during deployment. At the same time, it can also avoid false alarms on the unsynchronized line ports caused by configuration errors on the time synchronization layer.
  • the present invention operates on a node and is simple to implement without the need to develop complex planning software and interfaces.
  • the servo synchronization unit in the present invention processes only the source time information, so that the configuration of the BC node parameters can be reduced and the nodes compatible with the regular synchronization mode can be reduced and the network can be supported under the requirements of the time synchronization network deployment function. Manual configuration for easy engineering applications.
  • FIG. 1 is a flow chart of servo synchronization initialization in an embodiment of the present invention.
  • FIG. 2 is a flow chart of servo synchronization port detection in an embodiment of the present invention.
  • FIG. 3 is a flow chart of servo synchronization in an embodiment of the present invention.
  • FIG. 4 is a flow chart of servo synchronization management in an embodiment of the present invention.
  • the embodiment of the invention provides a rapid deployment system suitable for a time synchronization network, comprising a servo synchronization initialization unit, a servo synchronization port detection unit, a servo synchronization unit, and a servo synchronization management unit, wherein:
  • the servo synchronization initialization unit is configured to initialize and configure the time synchronization related hardware and chip when the node is powered on, so that after the normal operation, the external interface is initially configured to correctly receive or output the synchronization signal;
  • the application layer software operation mode is configured to initialize the data set used by the precise time protocol PTP and the BMC protocol stack; then, the servo synchronization port detection unit, the servo synchronization unit, the servo synchronization management unit, the servo synchronization port detection unit, and the servo are simultaneously activated.
  • the synchronization unit and the servo synchronization management unit are periodically operated;
  • the servo synchronization port detecting unit is configured to: detect the working and connection status of the line interface, and update the synchronization interface list;
  • the servo synchronization unit includes an announcement message processing module, a servo timer, a synchronization module and a servo module.
  • the servo synchronization unit has two working modes: a servo mode and a synchronous mode, and which mode is determined by the servo timer;
  • the servo synchronization unit is configured to: receive and transmit source time information, and perform a servo mode or a synchronization mode according to the source time information detected and received;
  • Servo mode disables the synchronization protocol, clears the source time information, does not track the external time source, and does not send the time information outward; maintains the internal time state and keeps listening to the network source time letter. Interest, can quickly switch to synchronous mode;
  • Synchronization mode According to the received source time information, the BMC algorithm determines the time source and port synchronization status tracked by the node, and submits the tracked source time information and port synchronization status to the notification message processing module, and passes the information through the Master ( The master clock is sent by the port. The node synchronizes upstream through the slave port. When the slave port does not receive the advertisement packet for a period of time, it will enter the servo mode.
  • the servo synchronization management unit is configured to: receive configuration information, perform compensation data setting according to the configuration data, specify a working mode of the port, or stop the servo synchronization mode, enter a normal synchronous operation mode; and also be responsible for configuration response, performance, and performance during servo synchronization. Status and alarm reporting.
  • the embodiment of the invention further provides a rapid deployment method for a time synchronization network based on the above system, comprising the following steps:
  • the servo synchronization initializing unit initializes and configures the time synchronization related hardware and chip to make it work normally; and initializes the external interface to correctly receive or output the synchronization signal; Configure the 1588 application layer software running mode, initialize the data set used by the PTP (Precision Time Protocal) protocol and the BMC algorithm protocol stack; then start the servo synchronization port detection unit, the servo synchronization unit, and the servo synchronization at the same time.
  • PTP Precision Time Protocal
  • the management unit, the servo synchronization port detecting unit, the servo synchronization unit and the servo synchronization management unit periodically operate, and automatically complete synchronization port selection, synchronization tracking and time information transmission according to the received source time information, servo synchronization port detection unit, servo synchronization unit,
  • the Servo Synchronization Management Unit can also be shut down or restarted depending on the configuration changes.
  • the servo synchronization initialization is performed by default, instead of the traditional synchronous initialization.
  • the traditional initialization needs to be started after the configuration synchronization function is enabled, and the initialization and configuration are completed.
  • the default startup servo is the same Step port detection unit, servo synchronization unit, and servo synchronization management unit.
  • the servo synchronization port detection unit detects the operation and connection status of the line interface, and updates the synchronization interface list:
  • the line interface can run PTP protocol, Slave (slave clock) for synchronous tracking, and Master (master clock) for time information. Send
  • the line interface When the line interface is not enabled, or the working or connection status is abnormal, if there is an alarm, the line interface is deleted from the synchronization port list.
  • the servo synchronization port detection unit runs periodically, and the synchronization port list is updated in time.
  • the servo synchronization port detection unit runs periodically, and polls each line port with time synchronization function to determine whether it works normally and starts time synchronization function.
  • the specific process is as follows:
  • node port list poll each line port with time synchronization function, check the status of one line port at a time, update the port number after the end, and detect the next port in the list until all ports in the list are Detection, end of detection, repeated detection in the next task cycle;
  • Update the synchronization port list In the synchronization port list, mark the line port that is detected as a synchronization port, and mark the failed line port as an asynchronous port; the synchronization port list is applied to the servo synchronization port detection unit and the servo synchronization unit. In the servo synchronization management unit, only the line ports labeled as synchronization ports can be synchronized.
  • the servo sync port detection unit does not need to work on the time synchronization of each port of the node. By configuring the state, you can automatically bind the working line ports to achieve time synchronization, which significantly reduces the configuration workload during deployment. It also avoids false alarms on unsynchronized line ports caused by configuration errors at the time synchronization level. .
  • the servo synchronization unit when receiving the information of the source clock, the servo synchronization unit enters the synchronous mode, runs the BMC algorithm and the PTP measurement protocol, synchronizes the upstream clock, and sends the source clock information and the time information downstream; if the source clock information is lost, When the threshold is exceeded, the servo mode is entered.
  • the servo mode belongs to the listening state of the source clock information. The local clock information is not sent out, the upstream clock is stopped, and the source clock information and time information are stopped.
  • the advertisement packet processing module can transmit the source time information by receiving and sending the advertisement packet, and can obtain the upstream source time information by receiving the advertisement packet to determine whether to track and track the path; and sending the advertisement packet can transmit the source time information to the downstream. Enable time information to be passed node by node.
  • the process of the notification packet processing module sending and receiving advertisement packets is as follows:
  • the advertisement packet processing module When the advertisement packet processing module receives the advertisement packet, it first determines whether the advertisement packet is the source clock information. If the advertisement packet is the source time information, it is forwarded to the synchronization module for processing. If the source time information is synchronized with the current source clock, If the receiving port is consistent, or the servo mode is currently working, the servo timer is cleared. If the source clock information is not the current source clock, the servo timer is not cleared. If the advertisement packet is BC The time information of the node is discarded and the servo timer is not operated.
  • the servo synchronization unit only processes the source time information, so that the configuration of the BC node parameters can be reduced and the nodes of the conventional synchronization mode can be compatible under the requirements of the time synchronization network deployment function.
  • the source clock information provided by the synchronization module is sent from the master (master clock) port according to the synchronization port status information determined by the synchronization module.
  • the servo timer monitors the reception of the source time information for synchronization and determines the operating mode of the servo synchronization unit accordingly.
  • Timeout period of the servo timer Synchronization source time information transmission period * Timeout factor.
  • the timeout factor can be configured as required. Generally, the default configuration is 3.
  • the synchronization module sets the timeout period of the servo timer. When the servo timer receives the synchronized source time information normally, the timeout flag is set to “0”, and the servo synchronization unit is notified to operate in the synchronous mode; if the source timer information is not received by the servo timer, the timeout flag is configured as “ 1", and inform the servo synchronization unit to operate in the servo mode.
  • the servo synchronization management unit is responsible for receiving the configuration information, setting the compensation data according to the configuration data, specifying the working mode of the port, or stopping the servo synchronization mode, and entering the normal synchronous operation mode; and also being responsible for the configuration during the servo synchronization.
  • the response, performance, status, and alarm reporting are described in detail below.
  • Servo synchronization configuration Servo synchronization mode, no configuration is required for default operation. However, it also supports the operation status of the synchronous port specified by the customer in the servo synchronization mode to meet the special networking requirements.
  • the compensation data can be configured through the network management system to eliminate the requirements for the project deployment.
  • the servo synchronization port detection unit, the servo synchronization unit, and the servo synchronization management unit can be turned off or turned on by the servo synchronization configuration to realize switching of different working modes.
  • Servo synchronization performance reporting collecting and reporting the performance of synchronous packet sending and receiving, time offset adjustment, time, average, peak and peak performance during servo synchronization, used for time synchronization network operation and maintenance management.
  • Servo synchronization status report Collect and report servo synchronization status information, including working mode, synchronization source clock information, port synchronization working status, and synchronous TOD (Time of Day) value, etc., used for time synchronization network operation and maintenance management.
  • servo synchronization status information including working mode, synchronization source clock information, port synchronization working status, and synchronous TOD (Time of Day) value, etc., used for time synchronization network operation and maintenance management.
  • Servo synchronization alarm reporting collecting and reporting the alarm information in the servo synchronization mode. Different from the normal mode: only the line interface detected in the synchronization port is detected. When the line is faulty and the communication is interrupted, the alarm is collected by the service level to avoid false alarms on the time synchronization level.

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Abstract

本发明公开了一种适用于时间同步网的快速部署系统及方法,涉及光通信网络领域。该系统包括伺服同步初始化单元、伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,节点上电时,对时间同步相关的硬件和芯片进行初始化和配置,同时启动伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,三个单元周期运行;伺服同步端口检测单元检测线路接口的工作和连接状态,更新同步接口列表;伺服同步单元接收、发送源时间信息,并根据检测和接收的源时间信息,执行伺服模式或同步模式。本发明能实现时间同步网在工程的快速部署,显著减少配置工作量,并杜绝配置错误造成的故障。

Description

适用于时间同步网的快速部署系统及方法 技术领域
本发明涉及光通信网络领域,具体是涉及一种适用于时间同步网的快速部署系统及方法。
背景技术
随着通信业务的发展,对时间同步提出的要求越来越高。1588v2(高精度时间同步协议v2版本)作为地面时间传送技术,与GPS(Global Positioning System,全球定位系统)等卫星同步技术比较,具有安全、故障率低、成本低、部署方便等优点。时间同步网正成为重要的支撑网络。随着承载网络规模的扩大,时间同步网络中的节点数目也越来越多。目前承载网中的节点采取的是BC(边界时钟)时钟模型。在实际工程应用中,由主备时间服务器向承载网注入时间信息,承载网节点通过BMC(Best Master Clock Algorithm,最佳主时钟算法)选择跟踪的时间源和跟踪方向。本地网络中的节点数目往往超过一千,甚至达到数千个节点。时间同步网人工部署的工作量越来越大,很容易出错,时间同步网的配置错误会直接影响终端设备的运行,也给工程开通带来比较大的压力,并且直接导致时间同步网工程部署的效率低下。
发明内容
本发明的目的是为了克服上述背景技术的不足,提供一种适用于时间同步网的快速部署系统及方法,能够实现时间同步网在工程的快速部署,显著减少承载网大规模部署时间同步时的配置工作量,并 杜绝配置错误造成的故障。
本发明提供一种适用于时间同步网的快速部署系统,该系统包括伺服同步初始化单元、伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,其中:
所述伺服同步初始化单元用于:在节点上电时,对时间同步相关的硬件和芯片进行初始化和配置,使之正常工作后,对外部接口进行初始化配置,使其正确接收或输出同步信号;对1588应用层软件运行模式进行配置,对精确时间协议PTP和BMC协议栈用到的数据集进行初始化;然后同时启动伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,伺服同步端口检测单元、伺服同步单元、伺服同步管理单元周期运行;
所述伺服同步端口检测单元用于:检测线路接口的工作和连接状态,更新同步接口列表;
所述伺服同步单元包括通告报文处理模块、伺服定时器、同步模块和伺服模块,伺服同步单元有两种工作模式:伺服模式和同步模式,工作在哪种模式由伺服定时器决定;伺服同步单元接收、发送源时间信息,并根据检测和接收的源时间信息,执行伺服模式或同步模式;
所述伺服同步管理单元用于:接收配置信息,根据配置数据进行补偿数据的设置,指定端口的工作模式,或者停止伺服同步模式,进入常规同步运行模式;还负责伺服同步时的配置响应、性能、状态、告警的上报。
在上述技术方案的基础上,所述伺服模式为:关闭同步协议,清除源时间信息,不跟踪外部时间源,也不向外发送时间信息;维持内部时间状态,保持侦听网络源时间信息,能快速切换到同 步模式。
在上述技术方案的基础上,所述同步模式为:根据收到的源时间信息,通过最佳主时钟算法BMC,决定节点所跟踪的时间源和端口同步状态,并将跟踪的源时间信息和端口同步状态提交通告报文处理模块,将信息通过主时钟Master端口发送,节点通过从时钟Slave端口同步上游,当Slave端口未收到通告报文一段时间,将转入伺服模式。
在上述技术方案的基础上,所述伺服同步单元接收到源时钟的信息时,进入同步模式,运行BMC算法和PTP测量协议,同步上游时钟,并向下游发送源时钟信息和时间信息;若源时钟信息丢失,超过门限,则进入伺服模式,伺服模式属于源时钟信息的侦听状态,不向外发送本地时钟信息,停止同步上游时钟,停止向下游发送源时钟信息和时间信息。
在上述技术方案的基础上,所述伺服定时器监测用于同步的源时间信息的接收情况,并据此决定伺服同步单元的工作模式;伺服定时器的超时时长=同步源时间信息发送周期*超时系数,由同步模块对伺服定时器的超时时长进行设置;伺服定时器正常接收同步的源时间信息时,将超时标志配置为“0”,并通知伺服同步单元运行于同步模式;若伺服定时器超时未收到源时间信息,则将超时标志配置为“1”,并通知伺服同步单元运行于伺服模式。
本发明还提供一种基于上述系统的适用于时间同步网的快速部署方法,包括以下步骤:
在节点上电时,伺服同步初始化单元对时间同步相关的硬件和芯片进行初始化和配置,使之正常工作;对外部接口进行初始化配置,使其正确接收或输出同步信号;对1588应用层软件运行 模式进行配置,对精确时间协议PTP和BMC算法协议栈用到的数据集进行初始化;然后同时启动伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,伺服同步端口检测单元、伺服同步单元、伺服同步管理单元周期运行;
所述伺服同步端口检测单元检测线路接口的工作和连接状态,更新同步接口列表:
当线路接口开启,且工作和连接状态正常,无告警时,将该线路接口加入同步端口列表,该线路接口运行PTP协议,从时钟Slave进行同步跟踪,主时钟Master进行时间信息的发送;
当线路接口未开启,或工作、连接状态异常,存在告警时,则从同步端口列表中删除该线路接口;
伺服同步端口检测单元周期运行,对同步端口列表及时更新;
所述伺服同步单元接收到源时钟的信息时,进入同步模式,运行BMC算法和PTP测量协议,同步上游时钟,并向下游发送源时钟信息和时间信息;若源时钟信息丢失,超过门限,则进入伺服模式,伺服模式属于源时钟信息的侦听状态,不向外发送本地时钟信息,停止同步上游时钟,停止向下游发送源时钟信息和时间信息;
所述伺服同步管理单元负责接收配置信息,根据配置数据进行补偿数据的设置,指定端口的工作模式,或者停止伺服同步模式,进入常规同步运行模式;还负责伺服同步时的配置响应、性能、状态、告警的上报。
在上述技术方案的基础上,所述伺服同步端口检测单元周期运行,轮询节点每个具有时间同步功能的线路端口,以判断其是否正常工作而开启时间同步功能,具体流程如下:
根据节点端口列表,对每个具有时间同步功能的线路端口进行轮询,每次检测一个线路端口的状态,结束后再更新端口号,检测列表中的下一个端口,直到列表中所有端口都被检测,检测结束,下一任务周期再重复进行检测;
检测线路端口是否开启,没有开启的端口无法完成时间同步功能;检测线路端口连接是否正常,没有连接、单通的端口无需开启时间同步功能;检测线路端口工作状态是否正常,端口速率没有配备、收发异常、告警等情况,无法完成时间同步功能;
更新同步端口列表:在同步端口列表中,将检测通过的线路端口标注为同步端口,将检测未通过的线路端口标注为非同步端口;该同步端口列表应用在伺服同步端口检测单元、伺服同步单元、伺服同步管理单元中,只有标注为同步端口的线路端口才能进行同步。
在上述技术方案的基础上,所述通告报文处理模块通过接收和发送通告报文来传递源时间信息,接收通告报文用于获取上游源时间信息,以决定是否跟踪和跟踪的路径;发送通告报文用于向下游传递源时间信息,使时间信息得以逐节点传递。
在上述技术方案的基础上,所述通告报文处理模块收发通告报文的流程如下:通告报文处理模块接收到通告报文时,首先判断通告报文是否为源时钟信息,如果通告报文为源时间信息,转发给同步模块处理,该源时间信息如果与当前同步的源时钟,并且接收端口一致,或者当前工作在伺服模式,则对伺服定时器进行清零操作;如果该源时钟信息非当前同步的源时钟,则不对伺服定时器进行清零操作;如果通告报文为BC节点的时间信息,则丢弃,且不对伺服定时器进行操作;通告报文处理模块发送通告 报文时,将同步模块提供的源时钟信息,根据同步模块决断的同步端口状态信息,从主时钟端口发送。
在上述技术方案的基础上,所述伺服同步端口检测单元、伺服同步单元、伺服同步管理单元根据配置的改变而关闭或重启。
与现有技术相比,本发明的优点如下:
(1)本发明根据承载网中时间同步网部署的特点,对工程应用模型进行分析提炼,定义了一种新的伺服同步应用模式,能够做到免配置或极少配置,设备上电即可运行,当时间源接入承载网时,节点自动完成跟踪;当节点接入网络时,无需配置即可自动同步。与目前的主备时间服务器向承载网注入时间信息,承载网节点通过BMC算法选择跟踪的时间源和跟踪方向相比,本发明不仅能够满足承载网快速部署时间同步的功能要求,而且能够实现时间同步网在工程的快速部署,显著减少承载网大规模部署时间同步时的配置工作量,并杜绝配置错误造成的故障。
(2)本发明中的伺服同步端口检测单元无需对节点每个端口的时间同步工作状态进行配置,就能自动绑定工作正常的线路端口,实现时间的同步,显著减少部署时的配置工作量,同时也能够避免时间同步层面由于配置错误导致的对未开启的线路端口的误告警。
(3)本发明运行于节点,实现简单,无需开发复杂的规划软件和接口。
(4)本发明中的伺服同步单元只对源时间信息进行处理,这样在满足时间同步网部署功能要求下,能够减少对BC节点参数的配置工作,并且能够兼容常规同步模式的节点,支持网络的人工配置,方便工程应用。
附图说明
图1是本发明实施例中伺服同步初始化的流程图。
图2是本发明实施例中伺服同步端口检测的流程图。
图3是本发明实施例中伺服同步的流程图。
图4是本发明实施例中伺服同步管理的流程图。
具体实施方式
下面结合附图及具体实施例对本发明作进一步的详细描述。
本发明实施例提供一种适用于时间同步网的快速部署系统,包括伺服同步初始化单元、伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,其中:
伺服同步初始化单元用于:在节点上电时,对时间同步相关的硬件和芯片进行初始化和配置,使之正常工作后,对外部接口进行初始化配置,使其正确接收或输出同步信号;对1588应用层软件运行模式进行配置,对精确时间协议PTP和BMC协议栈用到的数据集进行初始化;然后同时启动伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,伺服同步端口检测单元、伺服同步单元、伺服同步管理单元周期运行;
伺服同步端口检测单元用于:检测线路接口的工作和连接状态,更新同步接口列表;
伺服同步单元包括通告报文处理模块、伺服定时器、同步模块和伺服模块,伺服同步单元有两种工作模式:伺服模式和同步模式,工作在哪种模式由伺服定时器决定;
伺服同步单元用于:接收、发送源时间信息,并根据检测和接收的源时间信息,执行伺服模式或同步模式;
伺服模式:关闭同步协议,清除源时间信息,不跟踪外部时间源,也不向外发送时间信息;维持内部时间状态,保持侦听网络源时间信 息,能够快速切换到同步模式;
同步模式:根据收到的源时间信息,通过BMC算法,决定节点所跟踪的时间源和端口同步状态,并将跟踪的源时间信息和端口同步状态提交通告报文处理模块,将信息通过Master(主时钟)端口发送,节点通过Slave(从时钟)端口同步上游,当Slave端口未收到通告报文一段时间,将转入伺服模式;
伺服同步管理单元用于:接收配置信息,根据配置数据进行补偿数据的设置,指定端口的工作模式,或者停止伺服同步模式,进入常规同步运行模式;另外还负责伺服同步时的配置响应、性能、状态、告警的上报。
本发明实施例还提供一种基于上述系统的适用于时间同步网的快速部署方法,包括以下步骤:
参见图1所示,在节点上电时,伺服同步初始化单元对时间同步相关的硬件和芯片进行初始化和配置,使之正常工作;对外部接口进行初始化配置,使其正确接收或输出同步信号;对1588应用层软件运行模式进行配置,对PTP(Precision Time Protocal,精确时间协议)协议和BMC算法协议栈用到的数据集进行初始化;然后同时启动伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,伺服同步端口检测单元、伺服同步单元、伺服同步管理单元周期运行,自动根据接收的源时间信息完成同步端口选择、同步跟踪和时间信息的发送,伺服同步端口检测单元、伺服同步单元、伺服同步管理单元还可以根据配置的改变而关闭或重启。
本发明实施例在节点上电时,默认进行伺服同步初始化,替代传统的同步初始化;与传统的初始化需在配置同步功能使能后才启动相应任务不同,本发明实施例在初始化和配置完成后,默认启动伺服同 步端口检测单元、伺服同步单元、伺服同步管理单元。
参见图2所示,伺服同步端口检测单元检测线路接口的工作和连接状态,更新同步接口列表:
当线路接口开启,且工作和连接状态正常,无告警时,将该线路接口加入同步端口列表,该线路接口能够运行PTP协议,Slave(从时钟)进行同步跟踪,Master(主时钟)进行时间信息的发送;
当线路接口未开启,或工作、连接状态异常,存在告警时,则从同步端口列表中删除该线路接口;
伺服同步端口检测单元周期运行,对同步端口列表及时更新。
伺服同步端口检测单元周期运行,轮询节点每个具有时间同步功能的线路端口,以判断其是否正常工作而开启时间同步功能,具体流程如下:
根据节点端口列表,对每个具有时间同步功能的线路端口进行轮询,每次检测一个线路端口的状态,结束后再更新端口号,检测列表中的下一个端口,直到列表中所有端口都被检测,检测结束,下一任务周期再重复进行检测;
检测线路端口是否开启,没有开启的端口无法完成时间同步功能;检测线路端口连接是否正常,没有连接、单通的端口无需开启时间同步功能;检测线路端口工作状态是否正常,端口速率没有配备、收发异常、告警等情况,无法完成时间同步功能;
更新同步端口列表:在同步端口列表中,将检测通过的线路端口标注为同步端口,将检测未通过的线路端口标注为非同步端口;该同步端口列表应用在伺服同步端口检测单元、伺服同步单元、伺服同步管理单元中,只有标注为同步端口的线路端口才能进行同步。
伺服同步端口检测单元无需对节点每个端口的时间同步工作状 态进行配置,就能自动绑定工作正常的线路端口,实现时间的同步,显著减少部署时的配置工作量,同时也能够避免时间同步层面由于配置错误导致的对未开启的线路端口的误告警。
参见图3所示,伺服同步单元接收到源时钟的信息时,进入同步模式,运行BMC算法和PTP测量协议,同步上游时钟,并向下游发送源时钟信息和时间信息;若源时钟信息丢失,超过门限,则进入伺服模式,伺服模式属于源时钟信息的侦听状态,不向外发送本地时钟信息,停止同步上游时钟,停止向下游发送源时钟信息和时间信息。
通告报文处理模块通过接收和发送通告报文来传递源时间信息,接收通告报文能够获取上游源时间信息,以决定是否跟踪和跟踪的路径;发送通告报文能够向下游传递源时间信息,使时间信息能够得以逐节点传递。
参见图3所示,通告报文处理模块收发通告报文的流程如下:
通告报文处理模块接收到通告报文时,首先判断通告报文是否为源时钟信息,如果通告报文为源时间信息,转发给同步模块处理,该源时间信息如果与当前同步的源时钟,并且接收端口一致,或者当前工作在伺服模式,则对伺服定时器进行清零操作;如果该源时钟信息非当前同步的源时钟,则不对伺服定时器进行清零操作;如果通告报文为BC节点的时间信息,则丢弃,且不对伺服定时器进行操作。
伺服同步单元只对源时间信息进行处理,这样在满足时间同步网部署功能要求下,能够减少对BC节点参数的配置工作,并且能够兼容常规同步模式的节点。
通告报文处理模块发送通告报文时,将同步模块提供的源时钟信息,根据同步模块决断的同步端口状态信息,从Master(主时钟)端口发送。
伺服定时器监测用于同步的源时间信息的接收情况,并据此决定伺服同步单元的工作模式。伺服定时器的超时时长=同步源时间信息发送周期*超时系数,超时系数可根据需要进行配置,一般默认配置为3,由同步模块对伺服定时器的超时时长进行设置。伺服定时器正常接收同步的源时间信息时,将超时标志配置为“0”,并通知伺服同步单元运行于同步模式;若伺服定时器超时未收到源时间信息,则将超时标志配置为“1”,并通知伺服同步单元运行于伺服模式。
参见图4所示,伺服同步管理单元负责接收配置信息,根据配置数据进行补偿数据的设置,指定端口的工作模式,或者停止伺服同步模式,进入常规同步运行模式;另外还负责伺服同步时的配置响应、性能、状态、告警的上报,下面分别进行详细说明。
伺服同步配置:伺服同步模式,默认运行是无需进行配置。但也支持对客户在伺服同步模式下指定同步端口的工作状态,以满足特殊组网要求。当线路存在不对称延时或存在线缆延时,也能够通过网管配置补偿数据,进行消除,满足工程部署的需要。当客户配置其它工作模式,通过伺服同步配置,可以关闭或开启伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,实现不同工作模式的切换。
伺服同步性能上报:采集和上报伺服同步时同步报文的收发计数、时间偏差调整及时、平均、峰峰等性能数据,用于时间同步网运行维护管理。
伺服同步状态上报:采集和上报伺服同步状态信息,包括工作模式、同步源时钟信息、端口同步工作状态、同步TOD(Time of Day,日时间)值等,用于时间同步网运行维护管理。
伺服同步告警上报:采集和上报伺服同步模式运行时的告警信息,与常规模式不同的是:只有被检测列入同步端口的线路接口,才 会采集报文接收超时等告警;当线路发生故障,造成通信中断时,告警由业务层面采集,避免时间同步层面出现误告。
本领域的技术人员可以对本发明实施例进行各种修改和变型,倘若这些修改和变型在本发明权利要求及其等同技术的范围之内,则这些修改和变型也在本发明的保护范围之内。
说明书中未详细描述的内容为本领域技术人员公知的现有技术。

Claims (10)

  1. 一种适用于时间同步网的快速部署系统,其特征在于,该系统包括伺服同步初始化单元、伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,其中:
    所述伺服同步初始化单元用于:在节点上电时,对时间同步相关的硬件和芯片进行初始化和配置,使之正常工作后,对外部接口进行初始化配置,使其正确接收或输出同步信号;对1588应用层软件运行模式进行配置,对精确时间协议PTP和BMC协议栈用到的数据集进行初始化;然后同时启动伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,伺服同步端口检测单元、伺服同步单元、伺服同步管理单元周期运行;
    所述伺服同步端口检测单元用于:检测线路接口的工作和连接状态,更新同步接口列表;
    所述伺服同步单元包括通告报文处理模块、伺服定时器、同步模块和伺服模块,伺服同步单元有两种工作模式:伺服模式和同步模式,工作在哪种模式由伺服定时器决定;伺服同步单元接收、发送源时间信息,并根据检测和接收的源时间信息,执行伺服模式或同步模式;
    所述伺服同步管理单元用于:接收配置信息,根据配置数据进行补偿数据的设置,指定端口的工作模式,或者停止伺服同步模式,进入常规同步运行模式;还负责伺服同步时的配置响应、性能、状态、告警的上报。
  2. 如权利要求1所述的适用于时间同步网的快速部署系统,其特征在于,所述伺服模式为:关闭同步协议,清除源时间信息,不跟踪外部时间源,也不向外发送时间信息;维持内部时间状态,保持侦听网络源时间信息,能快速切换到同步模式。
  3. 如权利要求1所述的适用于时间同步网的快速部署系统,其特征在于,所述同步模式为:根据收到的源时间信息,通过最佳主时钟算法BMC,决定节点所跟踪的时间源和端口同步状态,并将跟踪的源时间信息和端口同步状态提交通告报文处理模块,将信息通过主时钟Master端口发送,节点通过从时钟Slave端口同步上游,当Slave端口未收到通告报文一段时间,将转入伺服模式。
  4. 如权利要求1所述的适用于时间同步网的快速部署系统,其特征在于:所述伺服同步单元接收到源时钟的信息时,进入同步模式,运行BMC算法和PTP测量协议,同步上游时钟,并向下游发送源时钟信息和时间信息;若源时钟信息丢失,超过门限,则进入伺服模式,伺服模式属于源时钟信息的侦听状态,不向外发送本地时钟信息,停止同步上游时钟,停止向下游发送源时钟信息和时间信息。
  5. 如权利要求1所述的适用于时间同步网的快速部署系统,其特征在于:所述伺服定时器监测用于同步的源时间信息的接收情况,并据此决定伺服同步单元的工作模式;伺服定时器的超时时长=同步源时间信息发送周期*超时系数,由同步模块对伺服定时器的超时时长进行设置;伺服定时器正常接收同步的源时间信息时,将超时标志配置为“0”,并通知伺服同步单元运行于同步模式;若伺服定时器超时未收到源时间信息,则将超时标志配置为“1”,并通知伺服同步单元运行于伺服模式。
  6. 一种基于权利要求1所述系统的适用于时间同步网的快速部署方法,其特征在于,包括以下步骤:
    在节点上电时,伺服同步初始化单元对时间同步相关的硬件和芯片进行初始化和配置,使之正常工作;对外部接口进行初始化配置,使其正确接收或输出同步信号;对1588应用层软件运行模式进行配 置,对精确时间协议PTP和BMC算法协议栈用到的数据集进行初始化;然后同时启动伺服同步端口检测单元、伺服同步单元、伺服同步管理单元,伺服同步端口检测单元、伺服同步单元、伺服同步管理单元周期运行;
    所述伺服同步端口检测单元检测线路接口的工作和连接状态,更新同步接口列表:
    当线路接口开启,且工作和连接状态正常,无告警时,将该线路接口加入同步端口列表,该线路接口运行PTP协议,从时钟Slave进行同步跟踪,主时钟Master进行时间信息的发送;
    当线路接口未开启,或工作、连接状态异常,存在告警时,则从同步端口列表中删除该线路接口;
    伺服同步端口检测单元周期运行,对同步端口列表及时更新;
    所述伺服同步单元接收到源时钟的信息时,进入同步模式,运行BMC算法和PTP测量协议,同步上游时钟,并向下游发送源时钟信息和时间信息;若源时钟信息丢失,超过门限,则进入伺服模式,伺服模式属于源时钟信息的侦听状态,不向外发送本地时钟信息,停止同步上游时钟,停止向下游发送源时钟信息和时间信息;
    所述伺服同步管理单元负责接收配置信息,根据配置数据进行补偿数据的设置,指定端口的工作模式,或者停止伺服同步模式,进入常规同步运行模式;还负责伺服同步时的配置响应、性能、状态、告警的上报。
  7. 如权利要求6所述的适用于时间同步网的快速部署方法,其特征在于:所述伺服同步端口检测单元周期运行,轮询节点每个具有时间同步功能的线路端口,以判断其是否正常工作而开启时间同步功能,具体流程如下:
    根据节点端口列表,对每个具有时间同步功能的线路端口进行轮询,每次检测一个线路端口的状态,结束后再更新端口号,检测列表中的下一个端口,直到列表中所有端口都被检测,检测结束,下一任务周期再重复进行检测;
    检测线路端口是否开启,没有开启的端口无法完成时间同步功能;检测线路端口连接是否正常,没有连接、单通的端口无需开启时间同步功能;检测线路端口工作状态是否正常,端口速率没有配备、收发异常、告警等情况,无法完成时间同步功能;
    更新同步端口列表:在同步端口列表中,将检测通过的线路端口标注为同步端口,将检测未通过的线路端口标注为非同步端口;该同步端口列表应用在伺服同步端口检测单元、伺服同步单元、伺服同步管理单元中,只有标注为同步端口的线路端口才能进行同步。
  8. 如权利要求6所述的适用于时间同步网的快速部署方法,其特征在于:所述通告报文处理模块通过接收和发送通告报文来传递源时间信息,接收通告报文用于获取上游源时间信息,以决定是否跟踪和跟踪的路径;发送通告报文用于向下游传递源时间信息,使时间信息得以逐节点传递。
  9. 如权利要求8所述的适用于时间同步网的快速部署方法,其特征在于:所述通告报文处理模块收发通告报文的流程如下:通告报文处理模块接收到通告报文时,首先判断通告报文是否为源时钟信息,如果通告报文为源时间信息,转发给同步模块处理,该源时间信息如果与当前同步的源时钟,并且接收端口一致,或者当前工作在伺服模式,则对伺服定时器进行清零操作;如果该源时钟信息非当前同步的源时钟,则不对伺服定时器进行清零操作;如果通告报文为BC节点的时间信息,则丢弃,且不对伺服定时器进行操作;通告报文处 理模块发送通告报文时,将同步模块提供的源时钟信息,根据同步模块决断的同步端口状态信息,从主时钟端口发送。
  10. 如权利要求6至9中任一项所述的适用于时间同步网的快速部署方法,其特征在于:所述伺服同步端口检测单元、伺服同步单元、伺服同步管理单元根据配置的改变而关闭或重启。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114205066A (zh) * 2021-11-23 2022-03-18 青岛鼎信通讯股份有限公司 一种基于采集终端b码对时的时间同步检测方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105703867B (zh) * 2016-01-07 2018-05-08 烽火通信科技股份有限公司 适用于时间同步网的快速部署系统及方法
CN108021430B (zh) * 2016-10-31 2021-11-05 杭州海康威视数字技术股份有限公司 一种分布式任务处理方法及装置
CN106647573B (zh) * 2016-11-01 2020-06-19 清能德创电气技术(北京)有限公司 一种伺服驱动器同步控制系统
FR3062204B1 (fr) * 2017-01-26 2019-04-05 Thales Passerelle electronique de communication, installation avionique de communication comprenant une telle passerelle, procede de traitement d'informations et programme d'ordinateur associes
CN110928892B (zh) * 2019-10-15 2023-06-27 中国直升机设计研究所 一种数据信息扫描同步系统及方法
CN113162813B (zh) * 2020-01-22 2022-06-03 烽火通信科技股份有限公司 一种ptp报文丢失检测分析方法和装置
CN111308937B (zh) * 2020-02-28 2020-11-24 浙江禾川科技股份有限公司 总线型伺服电机网络启动方法、装置、设备及存储介质
CN112002069A (zh) * 2020-08-19 2020-11-27 成都川衡科技有限公司 一种基于物联网的共享手机充电设备及其充电方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399655A (zh) * 2007-09-27 2009-04-01 华为技术有限公司 穿通时钟设备同步端口的确定方法及装置
CN101447861A (zh) * 2008-12-29 2009-06-03 中兴通讯股份有限公司 Ieee 1588时间同步系统及其实现方法
CN102843205A (zh) * 2012-09-03 2012-12-26 杭州华三通信技术有限公司 一种基于精确时间协议的时间同步收敛的方法和装置
CN102904706A (zh) * 2012-09-26 2013-01-30 烽火通信科技股份有限公司 分组传送网络中的系统频率同步装置及方法
CN105024798A (zh) * 2014-04-28 2015-11-04 中兴通讯股份有限公司 一种时间同步的方法及装置
CN105703867A (zh) * 2016-01-07 2016-06-22 烽火通信科技股份有限公司 适用于时间同步网的快速部署系统及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1825836B (zh) * 2006-04-04 2010-06-23 中兴通讯股份有限公司 避免网络设备拥塞的系统和方法
US8165168B2 (en) * 2007-10-01 2012-04-24 Altair Semiconductor Ltd. Zone synchronization in wireless communication networks
CN101170373A (zh) * 2007-11-27 2008-04-30 上海自动化仪表股份有限公司 环网中时钟同步的实现方法
CN102056285A (zh) * 2011-01-18 2011-05-11 大唐移动通信设备有限公司 时钟同步方法、系统和设备
CN105024841B (zh) * 2014-04-23 2019-08-27 南京中兴软件有限责任公司 一种时钟和时间同步网络的同步故障处理方法和系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399655A (zh) * 2007-09-27 2009-04-01 华为技术有限公司 穿通时钟设备同步端口的确定方法及装置
CN101447861A (zh) * 2008-12-29 2009-06-03 中兴通讯股份有限公司 Ieee 1588时间同步系统及其实现方法
CN102843205A (zh) * 2012-09-03 2012-12-26 杭州华三通信技术有限公司 一种基于精确时间协议的时间同步收敛的方法和装置
CN102904706A (zh) * 2012-09-26 2013-01-30 烽火通信科技股份有限公司 分组传送网络中的系统频率同步装置及方法
CN105024798A (zh) * 2014-04-28 2015-11-04 中兴通讯股份有限公司 一种时间同步的方法及装置
CN105703867A (zh) * 2016-01-07 2016-06-22 烽火通信科技股份有限公司 适用于时间同步网的快速部署系统及方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114205066A (zh) * 2021-11-23 2022-03-18 青岛鼎信通讯股份有限公司 一种基于采集终端b码对时的时间同步检测方法
CN114205066B (zh) * 2021-11-23 2023-10-24 青岛鼎信通讯股份有限公司 一种基于采集终端b码对时的时间同步检测方法

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