WO2012022147A1 - Method and system for protection switching of optical transport device - Google Patents
Method and system for protection switching of optical transport device Download PDFInfo
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- WO2012022147A1 WO2012022147A1 PCT/CN2011/071923 CN2011071923W WO2012022147A1 WO 2012022147 A1 WO2012022147 A1 WO 2012022147A1 CN 2011071923 W CN2011071923 W CN 2011071923W WO 2012022147 A1 WO2012022147 A1 WO 2012022147A1
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- board
- order cross
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- switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
Definitions
- the present invention relates to the field of optical communications in the communications industry, and in particular to a method and system for protection switching of optical transmission equipment.
- BACKGROUND OF THE INVENTION With the advancement of society, people have higher and higher requirements for communication reliability, and it has become unacceptable because of equipment failure causing long-term interruption of communication services.
- the service board is a synchronous digital system.
- board-level protection of service boards is a very effective and common protection measure, including 1+1 board level protection and 1: N board. Level protection.
- the 1+1 board-level protection is to protect a single service board by using one protection board.
- the configuration of the protection board is the same as that of the service board.
- N board level protection is to protect a N service order with a protection board. After the switchover occurs, the configuration of the protection board is the same as that of the failed service board.
- the method for reducing the interruption time of the 1:N board-level switching service is mainly to increase the switching excitation information, for example, by increasing the contact point state detection as the switching excitation information to trigger the switching, thereby shortening the 1:N working unit switching time.
- the time for configuring the low-order cross-protection board is greater than the time for configuring the high-order cross-board.
- a primary object of the present invention is to provide a method and system for protecting switching of an optical transmission device to solve the above-mentioned problem that the switching operation of the high-order cross-board and the cross-layer protection board is inconsistent, resulting in a service interruption.
- a method for protection switching of an optical transmission device including: transmitting, by the low-order cross protection board and the high-order cross-board, a switching ready signal to the opposite end after the configuration protection service is completed; After the configuration protection service is completed, either the low-order cross protection board and the high-order cross board enable the protection service of the configuration when receiving the switch ready signal from the peer.
- the service that enables the configuration of the low-order cross protection board and the high-order cross-layer board is: the low-end cross protection board and the high-order cross board are configured to be configured after the protection service is completed.
- the switch ready signal from the peer end is received within the threshold time to enable the configured protection service.
- any one of the low-order cross protection board and the high-order cross board does not receive the switching ready signal from the opposite end within a preset time after the configuration protection service is completed; the method further includes: After the configuration protection service is completed, the protection board and the high-end cross-connect board enable the services configured after the threshold time is reached.
- the threshold time is set according to the maximum time required for the high-order cross-board configuration service; for the high-order cross-board, the threshold time is required according to the low-order cross protection board configuration service. The longest time setting.
- the protection service is a switching service for the second-order cross protection board
- the protection service is a cross service for the high-order cross board.
- a system for protection switching of an optical transmission device including a high-order cross-board, a 1:N protection switching group, and a 1:N protection switching group including a cross-section protection board and its protection.
- the cross-over board, the high-order cross-board and the 1:N protection switching group are connected by a communication line, and the low-order cross protection board is set to perform the switching service configuration after receiving the signal for triggering the switching, and after completing the switching service configuration,
- the high-order cross-board sends the first switching ready signal; and when the second switching ready signal sent by the high-order cross-board is received, the switching service is enabled; the high-order cross-board is set to receive the signal after the trigger switching is performed.
- the cross-service configuration after completing the cross-service configuration, sends a second switch-ready signal to the low-order cross protection board; and when the first switch ready signal sent by the low-order cross protection board is received, the cross service is enabled.
- the low-order cross protection board is configured to enable the switching service when receiving the second switching ready signal within the first threshold time after completing the switching service configuration, otherwise, arrive at the first threshold time.
- the service is enabled, the service is switched.
- the first threshold time is set according to the maximum time of the cross-service configuration of the high-order cross-board.
- the high-order cross-board is configured to enable the cross-service when the first switching ready signal is received within the second threshold time after the completion of the cross-service configuration, otherwise, When the second threshold time arrives, the cross service is enabled.
- the second threshold time is set according to the longest time of the switching service configuration performed by the low-order cross protection board.
- the invention adopts a method in which the high-order cross-board and the protection board respectively wait for the progress of the configuration of the other party, and solves the problem that the business interruption is caused due to the inconsistent switching action of the high-order cross-board and the low-order cross-protection board, thereby achieving the improvement of the communication system.
- the beneficial effects of stability is provided.
- FIG. 1 is a flow chart of a method for protecting a protection of an optical transmission device according to an embodiment of the present invention
- FIG. 2 is a flowchart of a method for protecting a protection of an optical transmission device according to an embodiment of the present invention
- Method Embodiment 4 is a flowchart of a method for protecting a switching of an optical transmission device
- FIG. 4 is a flowchart of a method for protecting a switching of an optical transmission device according to an embodiment of the present invention
- FIG. 5 is a system for protecting a switching of an optical transmission device according to Embodiment 1 of the present invention
- this embodiment includes: Step S102, one end of the step protection board and the high-order cross board send a switch ready signal to the opposite end after the configuration protection service is completed; Step S104, one end of the rank cross protection board and the high order cross board After the configuration service is complete, the protection service configured by the peer is enabled when receiving the switch ready signal from the peer.
- the protection service is a switching service
- the protection service is a cross-service.
- the low-order cross protection board and the high-order cross board communicate with each other to know the configuration state of the other party, and after the configuration state of the other party is completed, the configured protection service is enabled, thereby solving the high-order crossover.
- Method Embodiment 2 Based on the first embodiment of the method, the threshold time is set on the high-order cross-board and the low-order cross protection board. After the threshold time is reached, the high-order cross board and the low-order cross protection board are obtained. Start the protection business by yourself. Specifically, if one end of the low-order cross protection board and the high-order cross board receives the switching ready signal from the opposite end within the threshold time after the configuration protection service is completed, one end of the low-order cross protection board and the high-order cross board Enable the protection service of the configuration.
- the threshold time can be set separately on the side of the cross-over protection board, or it can be set separately on the high-order cross board.
- the respective threshold times are respectively set in the low-order cross protection board and the high-order cross board.
- the threshold time is set according to the maximum time required for the high-order cross board configuration service; for the high-order cross board The threshold time is based on the minimum time required to configure the business for the low-order cross protection board. In this embodiment, the threshold time is preset, thereby avoiding the unrestricted waiting of the low-order cross protection board and the high-order cross board, thereby further saving time.
- Method embodiment three In this embodiment, a method for protecting the optical transmission device protection switching from the low-order cross protection board side will be described. 2 is a flow chart of a method for protecting and protecting a three-optical transmission device in the method of the present invention. As shown in FIG.
- Step S202 After receiving the signal for triggering the switching, the low-order cross protection board performs the switching service configuration; Step S204, after the switching service configuration of the second-order cross protection board completes the switching service configuration, the high-order intersection is performed.
- the board sends the first switching ready signal; in step S206, if the second switching ready signal sent by the high-order cross-board after the cross-service configuration is completed is received within the first threshold time, the low-order cross protection board enables the switching service; otherwise, The low-order cross protection board enables the switching service itself.
- the first threshold time is set according to the maximum time setting of the cross-service configuration according to the high-order cross-board.
- Method Embodiment 4 In this embodiment, a method for protecting and protecting an optical transmission device from a high-order cross-board side will be described.
- 3 is a flow chart of a method for protecting switching of four optical transmission devices according to an embodiment of the method of the present invention. As shown in FIG.
- Step S302 After receiving the signal for triggering the switching, the high-order cross-board performs cross-service configuration; Step S304, after the high-order cross-protection board completes the cross-service configuration, cross-protection to the rank The board sends a second switching ready signal. Step S306, if the first switching ready signal sent by the low-order cross protection board after the switching service configuration is completed is received within the second threshold time, the high-order cross-board enables the cross-service; otherwise, High-order cross boards enable cross-services themselves.
- the second threshold time is set according to the longest time of the switching service configuration performed by the low-order cross protection board.
- FIG. 4 is a flowchart of a method for protecting and protecting a five-optical transmission device in the method of the present invention. As shown in FIG.
- Step S402 When a switching occurs, a high-order cross-board protection switching protocol is configured to configure a cross-service; and in step S404, when a switching occurs, the low-order cross protection board is protected according to the protected low-order cross. Work board data, configuration switching service, because the low-order cross protection board needs to process more data information, this step takes a relatively long time; Step S406, after the high-order cross-board completes the service configuration, sends the first to the low-order cross protection board. If the service is configured, the service is disabled, and the service configuration is not effective. Step S408: After the service configuration is completed, the step-by-step protection board is configured. The high-order cross-board sends the first switching ready signal.
- Step S410 the high-order cross board waits for the low-order cross protection.
- the switch ready signal sent by the board ie, the first switching ready signal
- the process goes to step S414; otherwise, the process goes to step S418; wherein, the second threshold time T2, when the maximum data information is processed according to the low-order cross protection board, The time is set.
- the threshold time of the high-order cross-board can be set to 10 seconds.
- the low-order cross protection board waits for the high-order cross board to send. If the low-order cross protection board receives the "second switching ready signal" sent by the high-order cross-board in the first threshold time T1, then go to step S416; otherwise, go to step S420;
- the threshold time T 1 is set according to the occupied time when the high-order cross-board processes the most data information.
- the threshold time of the low-order cross protection board can be set to 5 seconds;
- the service is enabled, that is, the page turning (unlocking) operation is performed, and the service configured in step S402 is valid, and step S422 is performed.
- Step S416 after receiving the "first switching ready signal" sent by the high-order cross-board, the low-order cross protection board opens the service enable, that is, performs a page turning (unlocking) action, so that the service configured in the step 4 S404 takes effect.
- the step cross protection board jumps out and waits for the "replacement ready signal” action, and the service enable is enabled, that is, the page turning (unlocking) action is performed, the service configured in step S404 is valid, and step S424 is performed; step S422, the high-order cross-board clearing "switching ready"Signal"; Step S424, the low-order cross protection board clears the "switching ready signal".
- the timing of the first threshold time and the first threshold time is usually sent from the corresponding board software to the time difference of the configuration of the board software to the register. Because the situation of each board running is very complicated, the length of time for each service configuration is different. Therefore, the accuracy of timing is not very strict.
- the first threshold time can be set from the low-order cross protection board to configure the switching service.
- the second threshold time can be set from the high-order cross-board configuration cross-service. For simplicity, the first threshold time and the second threshold time can be set to be the same.
- the first threshold time can be set according to the maximum time setting of the cross-service configuration according to the high-order cross-board; the second threshold time is set according to the long-term setting of the switching service configuration by the low-order cross protection board.
- waiting for the "switching ready signal” limits the execution time of step S414 and step S416.
- the time of signal transmission between the high-order cross-board and the low-order cross-protection board can be approximately ignored, and the two are respectively "”
- the configuration enable time "can achieve a good synchronization in theory, so that the service interruption time caused by the 1:N board level switching is well controlled.
- the optical transmission equipment protection switching system of this embodiment includes: a high-order cross-board, and a 1:N protection switching group.
- the N protection switching group includes a graded cross protection board and a stepped cross board to be protected, and the high order cross board and the 1:N protection switching group are connected by a communication line.
- the low-order cross protection board is configured to perform the switching service configuration after receiving the signal for triggering the switching, and after the switching service configuration is completed, send the first switching ready signal to the high-order cross-board; When the second switching ready signal sent by the cross-board is enabled, the switching service is enabled.
- the high-order cross-connecting board is configured to perform cross-service configuration after receiving the trigger switching signal. After completing the cross-service configuration, the low-order cross protection is performed. The board sends a second switching ready signal; and when the first switching ready signal sent by the low-order cross protection board is received, the cross service is enabled.
- the method implemented in this embodiment can refer to the related descriptions of the method embodiments 1 to 5, and has the beneficial effects of the foregoing embodiments, and the details are not repeated in J3 ⁇ 4.
- System Embodiment 2 This embodiment will increase the threshold time limit on the basis of the second embodiment of the system, thereby saving time as much as possible while ensuring the configuration of the high-order cross-board and the cross-section protection board. Ensure the normal operation of the system.
- the low-order cross protection board is configured to enable the switching service after completing the switching service configuration and receiving the second switching ready signal within the first threshold time, otherwise, when the first threshold time arrives, Enable the switching business.
- the first threshold time is set according to the maximum time of the cross-service configuration of the high-order cross-board.
- the high-order cross-board is configured to enable the cross-service after the cross-service configuration is completed, and the first switch-ready signal is received within the second threshold time. Otherwise, when the second threshold time is reached, Can cross business.
- the second threshold time is set according to the longest time of the switching service configuration of the low-order cross protection board.
- the low-order cross protection board and the high-order cross board have sufficient time for the switching service configuration, and the switching operation of the high-order cross board and the low-order cross protection board is solved. Inconsistent, leading to the problem of business interruption, and thus the beneficial effect of improving the stability of the communication system.
- the method implemented in this embodiment can refer to the related descriptions of the method embodiments 1 to 5, and has all the beneficial effects of the foregoing embodiments, and is not repeated in J3 ⁇ 4.
- the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
- the program code is implemented so that they can be stored in the storage device by the computing device, and in some cases, the steps shown or described can be performed in a different order than here, or they can be separately produced.
- the individual integrated circuit modules are implemented, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.
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Abstract
The present invention discloses a method and system for the protection switching of an optical transport device. The method includes: after finishing the configuration for protection services, either of a lower-order cross protection board and a high-order cross board sends a switch ready signal to the opposite end; after finishing the configuration for protection services, either of the lower-order cross protection board and the high-order cross board enables its configured protection services when receiving the switch ready signal from the opposite end. The present invention enables the lower-order cross protection board and the high-order cross board to communicate with each other, to obtain the configuration state of the opposite party, and enables the configured protection services when the configuration state of the opposite party is finished, thus resolving the problem that the service is interrupted instantly because the switch action of the high-order cross board is not consistent with the switch action of the lower-order cross protection board, and achieving the beneficial effect of improving the stability of telecommunication system.
Description
光传 殳^呆护倒换的方法及系统 技术领域 本发明涉及通信行业光通信领域， 具体而言， 涉及一种光传输设备保护 倒换的方法及系统。 背景技术 随着社会的进步， 人们对通讯可靠性的要求越来越高， 由于设备故障导 致通讯业务长时间中断变得难以接受。 业务单板是同步数字体系 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of optical communications in the communications industry, and in particular to a method and system for protection switching of optical transmission equipment. BACKGROUND OF THE INVENTION With the advancement of society, people have higher and higher requirements for communication reliability, and it has become unacceptable because of equipment failure causing long-term interruption of communication services. The service board is a synchronous digital system.
(Synchronous Digital Hierarchy, 简称 SDH ) /光纤同步网络 (Synchronous Optical Networking, 简称 SONET ) /光传输体系（ Optical Transport Hierarchy, 简称 OTH ) 的基本部件。 为了避免单板出现故障而导致业务长时间中断， 在通讯设备中， 对业务 单板进行板级保护是一种非常有效、 常见的保护措施， 主要包括 1+1板级保 护和 1 : N板级保护。 其中， 1+1板级保护为釆用一块保护单板保护一块业 务单板， 保护单板和业务单板的配置相同； 1 : N板级保护为釆用一块保护单 板保护 N块业务单板， 在发生倒换后， 保护单板和发生故障的业务单板的配 置相同。 目前， 减少 1： N板级倒换业务中断时间的方法主要为增加倒换激 励信息， 例如通过增加接触点状态检测作为倒换激励信息触发倒换， 从而缩 短 1 : N工作单元倒换时间。 增加倒换激励信息的方法在大容量传输设备中， 对于一些需要处理大量 数据信息的保护单板， 例如低阶交叉板， 数据板等， 在发生 1 : N保护倒换 过程中， 高阶交叉板和低阶交叉保护板处理数据量是不同的， 低阶交叉保护 板配置业务的时间要大于高阶交叉板配置业务的时间。 在实现本发明的过程 中， 发明人意识到现有技术存在如下缺陷： 由于高阶交叉板和低阶交叉保护 板处理数据量不同而引起倒换动作不一致， 从而导致业务产生瞬断。 发明内容 本发明的主要目的在于提供一种光传输设备保护倒换的方法及系统， 以 解决上述的由于高阶交叉板和氏阶交叉保护板倒换动作不一致， 导致业务瞬 断的问题。
根据本发明的一个方面，提供了一种光传输设备保护倒换的方法， 包括： 低阶交叉保护板与高阶交叉板中的任一端在配置保护业务完成后， 向对端发 送倒换就绪信号； 低阶交叉保护板与高阶交叉板中的任一端在配置保护业务 完成后， 在接收到来自对端的倒换就绪信号时， 使能其配置的保护业务。 优选地， 本技术方案中， 低阶交叉保护板与高阶交叉板中的任一端使能 其配置的业务包括： 低阶交叉保护板与高阶交叉板中的任一端在配置保护业 务完成后的门限时间内接收到来自对端的倒换就绪信号， 使能其配置的保护 业务。 优选地， 本技术方案中， 低阶交叉保护板与高阶交叉板中的任一端在配 置保护业务完成后的预设时间内没有接收到来自对端的倒换就绪信号； 方法 还包括： 氏阶交叉保护板与高阶交叉板中的任一端在配置保护业务完成后， 在门限时间到达后， 使能其配置的业务。 优选地， 本技术方案中， 对于低阶交叉保护板， 门限时间根据高阶交叉 板配置业务所需的最长时间设置； 对于高阶交叉板， 门限时间根据低阶交叉 保护板配置业务所需的最长时间设置。 优选地， 本技术方案中， 对于所述氏阶交叉保护板， 所述保护业务为倒 换业务； 对于所述高阶交叉板， 所述保护业务为交叉业务。 根据本发明的另一方面， 提供了一种光传输设备保护倒换的系统， 包括 高阶交叉板、 1 : N保护倒换组， 1 : N保护倒换组包括氏阶交叉保护板和其 需要保护的氏阶交叉板， 高阶交叉板和 1 : N保护倒换组通过通讯线相连， 低阶交叉保护板， 设置为在接收到触发倒换的信号后， 进行倒换业务配置， 完成倒换业务配置后， 向高阶交叉板发送第一倒换就绪信号； 并在收到高阶 交叉板发送的第二倒换就绪信号时， 使能倒换业务； 高阶交叉板， 设置为在 接收到触发倒换的信号后， 进行交叉业务配置， 在完成交叉业务配置后， 向 低阶交叉保护板发送第二倒换就绪信号； 并在收到低阶交叉保护板发送的第 一倒换就绪信号时， 使能交叉业务。 优选地， 本技术方案中， 低阶交叉保护板， 设置为在完成倒换业务配置 后的第一门限时间内收到第二倒换就绪信号时， 使能倒换业务， 否则， 在第 一门限时间到达时， 使能倒换业务。
优选地， 本技术方案中， 所述第一门限时间才艮据所述高阶交叉板进行交 叉业务配置的最长时间设置。 优选地， 本技术方案中， 所述高阶交叉板， 设置为在完成所述交叉业务 配置后的第二门限时间内收到第一倒换就绪信号时， 使能所述交叉业务， 否 则， 在所述第二门限时间到达时， 使能所述交叉业务。 优选地， 本技术方案中， 所述第二门限时间根据所述低阶交叉保护板进 行倒换业务配置的最长时间设置。 本发明釆用高阶交叉板和保护板分别等待对方配置的进展的方法， 解决 了由于高阶交叉板和低阶交叉保护板倒换动作不一致，导致业务瞬断的问题， 进而达到了提高通信系统稳定性的有益效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部 分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的 不当限定。 在附图中： 图 1为 居本发明方法实施例一光传输设备保护倒换方法的流程图； 图 2为 居本发明方法实施例三光传输设备保护倒换方法的流程图； 图 3为 居本发明方法实施例四光传输设备保护倒换方法的流程图； 图 4为 居本发明方法实施例五光传输设备保护倒换方法的流程图； 图 5为 居本发明系统实施例一光传输设备保护倒换系统的示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是， 在 不冲突的情况下， 本申请中的实施例及实施例中的特征可以相互组合。 方法实施例一： 图 1为 居本发明方法实施例一光传输设备保护倒换方法的流程图。 如 图 1所示， 本实施例包括：
步骤 S 102, 氏阶交叉保护板与高阶交叉板中的一端在配置保护业务完成 后， 向对端发送倒换就绪信号； 步骤 S 104, 氏阶交叉保护板与高阶交叉板中的一端在配置业务完成后， 在接收到来自对端的倒换就绪信号时， 使能其配置的保护业务。 对于低阶交叉保护板来讲，保护业务为倒换业务； 对于高阶交叉板来讲， 保护业务为交叉业务。 本实施例中， 通过低阶交叉保护板和高阶交叉板之间 互相通信， 从而得知对方的配置状态， 待对方配置状态完成后， 使能配置的 保护业务， 从而解决了由于高阶交叉板和氏阶交叉保护板倒换动作不一致， 导致业务瞬断的问题， 进而达到了提高通信系统稳定性的有益效果。 方法实施例二： 本实施例将在方法实施例一的基础上， 在高阶交叉板和低阶交叉保护板 设置门限时间， 在该门限时间到达后， 高阶交叉板和低阶交叉保护板自行启 动保护业务。 具体来讲， 如果低阶交叉保护板与高阶交叉板中的一端在配置保护业务 完成后的门限时间内接收到来自对端的倒换就绪信号， 低阶交叉保护板与高 阶交叉板中的一端使能其配置的保护业务； 如果低阶交叉保护板与高阶交叉 板中的一端在配置保护业务完成后的预设时间内没有接收到来自对端的倒换 就绪信号， 低阶交叉保护板与高阶交叉板中的一端在配置保护业务完成后， 在门限时间到达后， 使能其配置的业务。 其中， 门限时间可以单独在氐阶交叉保护板侧设置， 也可以单独在高阶 交叉板设置。 优选地， 在低阶交叉保护板和高阶交叉板分别设置各自的门限 时间， 对于低阶交叉保护板， 门限时间根据高阶交叉板配置业务所需的最长 时间设置； 对于高阶交叉板； 门限时间根据低阶交叉保护板配置业务所需的 最长时间设置。 本实施例通过预设门限时间， 从而避免了低阶交叉保护板和高阶交叉板 无限制的等待， 从而进一步节约了时间。 方法实施例三
本实施例将从低阶交叉保护板侧对光传输设备保护倒换方法进行说明。 图 2为 居本发明方法实施例三光传输设备保护倒换方法的流程图。 如图 2 所示， 本实施例包括： 步骤 S202, 低阶交叉保护板接收到触发倒换的信号后， 进行倒换业务配 置； 步骤 S204, 氏阶交叉保护板完成倒换业务配置后， 向高阶交叉板发送第 一倒换就绪信号； 步骤 S206,如果在第一门限时间内收到高阶交叉板在交叉业务配置完成 后发送的第二倒换就绪信号， 低阶交叉保护板使能倒换业务； 否则， 低阶交 叉保护板自行使能倒换业务。 本实施例中， 第一门限时间才艮据高阶交叉板进行交叉业务配置的最长时 间设置。 本实施例中， 由于等待了第一门限时间， 保证了高阶交叉板有足够的时 间进行交叉业务配置， 解决了由于高阶交叉板和低阶交叉保护板倒换动作不 一致， 导致业务瞬断的问题， 进而达到了提高通信系统稳定性的有益效果。 方法实施例四： 本实施例将从高阶交叉板侧对光传输设备保护倒换方法进行说明。 图 3 为根据本发明方法实施例四光传输设备保护倒换方法的流程图。如图 3所示， 本实施例包括： 步骤 S302, 高阶交叉板接收到触发倒换的信号后， 进行交叉业务配置； 步骤 S304, 高阶交叉保护板完成交叉业务配置后， 向氏阶交叉保护板发 送第二倒换就绪信号； 步骤 S306,如果在第二门限时间内收到低阶交叉保护板在倒换业务配置 完成后发送的第一倒换就绪信号， 高阶交叉板使能交叉业务； 否则， 高阶交 叉板自行使能交叉业务。 本实施例中， 第二门限时间根据低阶交叉保护板进行倒换业务配置的最 长时间设置。 本实施例中， 由于等待了第二门限时间， 保证了低阶交叉保护
板有足够的时间进行倒换业务配置， 解决了由于高阶交叉板和低阶交叉保护 板倒换动作不一致， 导致业务瞬断的问题， 进而达到了提高通信系统稳定性 的有益效果。 方法实施例五： 图 4为 居本发明方法实施例五光传输设备保护倒换方法的流程图。 如 图 4所示， 本实施例包括： 步骤 S402, 当倒换发生， 高阶交叉板 居保护倒换协议， 配置交叉业务； 步骤 S404, 当倒换发生， 低阶交叉保护板根据被保护的低阶交叉工作板 数据， 配置倒换业务， 由于低阶交叉保护板需要处理较多数据信息， 所以该 步骤花费时间相对较长； 步骤 S406, 高阶交叉板完成业务配置后， 向低阶交叉保护板发送第二倒 换就绪信号， 此时高阶交叉板完成业务配置， 但由于没有执行翻页 （解锁） 动作， 业务使能关闭， 业务配置未生效； 步骤 S408, 氏阶交叉保护板完成业务配置后， 向高阶交叉板发送第一倒 换就绪信号， 此时低阶交叉保护板完成业务配置， 但由于没有执行翻页 （解 锁） 动作， 业务使能关闭； 步骤 S410, 高阶交叉板等待低阶交叉保护板发送的倒换就绪信号（即第 一倒换就绪信号）， 如果高阶交叉板在第二门限时间 T2内收到低阶交叉保护 板发送的第一倒换就绪信号， 则转步骤 S414; 否则转步骤 S418; 其中， 第二门限时间 T2, 可以根据低阶交叉保护单板处理最多数据信息 时， 所占用时间进行设置， 例如， 低阶交叉保护板配置完业务所需要时间为 10秒,则高阶交叉板的门限时间可设置为 10秒； 步骤 S412, 低阶交叉保护板等待高阶交叉板发送的"倒换就绪信号"； 如 果低阶交叉保护板在第一门限时间 T1内收到高阶交叉板发送的"第二倒换就 绪信号"， 则转步骤 S416; 否则转步骤 S420; 其中， 第一门限时间 T 1 , 根据高阶交叉板处理最多数据信息时， 所占用 时间进行设置， 例如， 高阶交叉板配置满业务所需要时间为 5秒， 则低阶交 叉保护板的门限时间可设置为 5秒；
步骤 S414, 高阶交叉板收到低阶交叉保护板发送的"第二倒换就绪信号" 后， 打开业务使能， 即执行翻页 （解锁） 动作， 使步骤 S402配置的业务生 效， 执行步骤 S422; 步骤 S416, 低阶交叉保护板收到高阶交叉板发送的"第一倒换就绪信号" 后， 打开业务使能， 即执行翻页 （解锁） 动作， 使步 4聚 S404配置的业务生 效， 执行步骤 S424; 步骤 S418, 高阶交叉板跳出等待"倒换就绪信号 "动作， 打开业务使能， 即执行翻页 （解锁） 动作， 使步骤 S302配置的业务生效， 执行步骤 S422; 步骤 S420, 低阶交叉保护板跳出等待"倒换就绪信号"动作， 打开业务使 能， 即执行翻页（解锁）动作，使步骤 S404配置的业务生效，执行步骤 S424; 步骤 S422, 高阶交叉板清除"倒换就绪信号"； 步骤 S424, 低阶交叉保护板清除 "倒换就绪信号"。 本实施例中， 第一门限时间和第一门限时间的计时通常是从相应单板软 件接收到命令下发， 到单板软件对寄存器完成配置的时间差。 由于单板每次 运行的情况很复杂， 每次完成业务配置时间的长短也不一样， 因此， 计时的 精确度要求不是很严格。 第一门限时间， 可以从低阶交叉保护板配置倒换业 务开始计时； 第二门限时间， 可以从高阶交叉板配置交叉业务开始计时。 为 简便起见， 第一门限时间和第二门限时间可以设置为相同。 优选地， 第一门 限时间可以才艮据高阶交叉板进行交叉业务配置的最长时间设置； 第二门限时 间根据低阶交叉保护板进行倒换业务配置的最长时间设置。 本实施例中， 等待"倒换就绪信号 "限制了步骤 S414和步骤 S416的执行 时间， 同时， 高阶交叉板和低阶交叉保护板之间进行信号传输的时间可以近 似忽略， 两者各自的"配置使能时间 "可以在理论上达到很好的同步， 从而很 好的控制由于发生 1 :N板级倒换而引起的业务中断时间。 系统实施例一： 图 5为 居本发明系统实施例一光传输设备保护倒换系统的示意图。 如 图 5所示， 本实施例光传输设备保护倒换系统包括： 高阶交叉板、 1 : N保护 倒换组。 1 : N保护倒换组包括氏阶交叉保护板和其需要保护的氏阶交叉板， 高阶交叉板和 1 : N保护倒换组通过通讯线相连。
本实施例中， 低阶交叉保护板， 设置为在接收到触发倒换的信号后， 进 行倒换业务配置， 完成倒换业务配置后， 向高阶交叉板发送第一倒换就绪信 号； 并在收到高阶交叉板发送的第二倒换就绪信号时， 使能倒换业务； 高阶交叉板， 设置为在接收到触发倒换的信号后， 进行交叉业务配置， 在完成交叉业务配置后， 向低阶交叉保护板发送第二倒换就绪信号； 并在收 到低阶交叉保护板发送的第一倒换就绪信号时， 使能交叉业务。 本实施例实现的方法可以参照方法实施例一至五的相关说明， 并具有上 述实施例的有益效果， J¾处不再重述。 系统实施例二： 本实施例将在系统实施例二的基础上， 增加对门限时间的限定， 从而在 保证高阶交叉板和氏阶交叉保护板完成配置的前提下， 尽可能的节约时间， 保证系统的正常运行。 本实施例中， 低阶交叉保护板， 设置为在完成倒换业务配置后， 并且在 第一门限时间内收到第二倒换就绪信号时， 使能倒换业务， 否则在第一门限 时间到达时， 使能倒换业务。 其中， 第一门限时间根据高阶交叉板进行交叉 业务配置的最长时间设置。 本实施例中， 高阶交叉板， 设置为在完成交叉业务配置后， 并且在第二 门限时间内收到第一倒换就绪信号时， 使能交叉业务， 否则在第二门限时间 到达时， 使能交叉业务。 第二门限时间根据低阶交叉保护板进行倒换业务配 置的最长时间设置。 本实施例中， 由于等待了预设的门限时间， 保证了低阶交叉保护板和高 阶交叉板有足够的时间进行倒换业务配置， 解决了由于高阶交叉板和低阶交 叉保护板倒换动作不一致， 导致业务瞬断的问题， 进而达到了提高通信系统 稳定性的有益效果。 本实施例实现的方法可以参照方法实施例一至五的相关说明， 并具有上 述实施例的全部有益效果， J¾处不再重述。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布 在多个计算装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程
序代码来实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 并 且在某些情况下， 可以以不同于此处的顺序执行所示出或描述的步骤， 或者 将它们分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制作 成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬件和软件 结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的^"神和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护 范围之内。
(Synchronous Digital Hierarchy, referred to as SDH) / Synchronous Optical Networking (SONET) / Optical Transport Hierarchy (OTH) basic components. In the communication device, board-level protection of service boards is a very effective and common protection measure, including 1+1 board level protection and 1: N board. Level protection. The 1+1 board-level protection is to protect a single service board by using one protection board. The configuration of the protection board is the same as that of the service board. 1 : N board level protection is to protect a N service order with a protection board. After the switchover occurs, the configuration of the protection board is the same as that of the failed service board. Currently, the method for reducing the interruption time of the 1:N board-level switching service is mainly to increase the switching excitation information, for example, by increasing the contact point state detection as the switching excitation information to trigger the switching, thereby shortening the 1:N working unit switching time. A method for adding switching information to a large-capacity transmission device, for some protection boards that need to process a large amount of data information, such as a low-order cross-board, a data board, etc., during a 1:N protection switching process, a high-order cross-board and The amount of data processed by the low-order cross-protection board is different. The time for configuring the low-order cross-protection board is greater than the time for configuring the high-order cross-board. In the process of implementing the present invention, the inventors have realized that the prior art has the following drawbacks: Due to the difference in the amount of data processed by the high-order cross-board and the low-order cross-protection board, the switching action is inconsistent, resulting in a business interruption. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a method and system for protecting switching of an optical transmission device to solve the above-mentioned problem that the switching operation of the high-order cross-board and the cross-layer protection board is inconsistent, resulting in a service interruption. According to an aspect of the present invention, a method for protection switching of an optical transmission device is provided, including: transmitting, by the low-order cross protection board and the high-order cross-board, a switching ready signal to the opposite end after the configuration protection service is completed; After the configuration protection service is completed, either the low-order cross protection board and the high-order cross board enable the protection service of the configuration when receiving the switch ready signal from the peer. Preferably, in the technical solution, the service that enables the configuration of the low-order cross protection board and the high-order cross-layer board is: the low-end cross protection board and the high-order cross board are configured to be configured after the protection service is completed. The switch ready signal from the peer end is received within the threshold time to enable the configured protection service. Preferably, in the technical solution, any one of the low-order cross protection board and the high-order cross board does not receive the switching ready signal from the opposite end within a preset time after the configuration protection service is completed; the method further includes: After the configuration protection service is completed, the protection board and the high-end cross-connect board enable the services configured after the threshold time is reached. Preferably, in the technical solution, for the low-order cross protection board, the threshold time is set according to the maximum time required for the high-order cross-board configuration service; for the high-order cross-board, the threshold time is required according to the low-order cross protection board configuration service. The longest time setting. Preferably, in the technical solution, the protection service is a switching service for the second-order cross protection board, and the protection service is a cross service for the high-order cross board. According to another aspect of the present invention, a system for protection switching of an optical transmission device is provided, including a high-order cross-board, a 1:N protection switching group, and a 1:N protection switching group including a cross-section protection board and its protection. The cross-over board, the high-order cross-board and the 1:N protection switching group are connected by a communication line, and the low-order cross protection board is set to perform the switching service configuration after receiving the signal for triggering the switching, and after completing the switching service configuration, The high-order cross-board sends the first switching ready signal; and when the second switching ready signal sent by the high-order cross-board is received, the switching service is enabled; the high-order cross-board is set to receive the signal after the trigger switching is performed. The cross-service configuration, after completing the cross-service configuration, sends a second switch-ready signal to the low-order cross protection board; and when the first switch ready signal sent by the low-order cross protection board is received, the cross service is enabled. Preferably, in the technical solution, the low-order cross protection board is configured to enable the switching service when receiving the second switching ready signal within the first threshold time after completing the switching service configuration, otherwise, arrive at the first threshold time. When the service is enabled, the service is switched. Preferably, in the technical solution, the first threshold time is set according to the maximum time of the cross-service configuration of the high-order cross-board. Preferably, in the technical solution, the high-order cross-board is configured to enable the cross-service when the first switching ready signal is received within the second threshold time after the completion of the cross-service configuration, otherwise, When the second threshold time arrives, the cross service is enabled. Preferably, in the technical solution, the second threshold time is set according to the longest time of the switching service configuration performed by the low-order cross protection board. The invention adopts a method in which the high-order cross-board and the protection board respectively wait for the progress of the configuration of the other party, and solves the problem that the business interruption is caused due to the inconsistent switching action of the high-order cross-board and the low-order cross-protection board, thereby achieving the improvement of the communication system. The beneficial effects of stability. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a method for protecting a protection of an optical transmission device according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for protecting a protection of an optical transmission device according to an embodiment of the present invention; Method Embodiment 4 is a flowchart of a method for protecting a switching of an optical transmission device; FIG. 4 is a flowchart of a method for protecting a switching of an optical transmission device according to an embodiment of the present invention; FIG. 5 is a system for protecting a switching of an optical transmission device according to Embodiment 1 of the present invention; Schematic diagram. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. Method Embodiment 1 FIG. 1 is a flowchart of a method for protecting a protection of an optical transmission device according to Embodiment 1 of the present invention. As shown in FIG. 1, this embodiment includes: Step S102, one end of the step protection board and the high-order cross board send a switch ready signal to the opposite end after the configuration protection service is completed; Step S104, one end of the rank cross protection board and the high order cross board After the configuration service is complete, the protection service configured by the peer is enabled when receiving the switch ready signal from the peer. For a low-order cross-protection board, the protection service is a switching service; for a high-order cross-board, the protection service is a cross-service. In this embodiment, the low-order cross protection board and the high-order cross board communicate with each other to know the configuration state of the other party, and after the configuration state of the other party is completed, the configured protection service is enabled, thereby solving the high-order crossover. The board and the cross-over protection board have inconsistent switching actions, which leads to the problem of business interruption, and thus achieves the beneficial effect of improving the stability of the communication system. Method Embodiment 2: Based on the first embodiment of the method, the threshold time is set on the high-order cross-board and the low-order cross protection board. After the threshold time is reached, the high-order cross board and the low-order cross protection board are obtained. Start the protection business by yourself. Specifically, if one end of the low-order cross protection board and the high-order cross board receives the switching ready signal from the opposite end within the threshold time after the configuration protection service is completed, one end of the low-order cross protection board and the high-order cross board Enable the protection service of the configuration. If one end of the low-order cross protection board and the high-order cross board does not receive the switching ready signal from the peer within the preset time after the configuration protection service is completed, the low-order cross protection board and the high After the configuration protection service is completed, one end of the configuration board enables the configured services after the threshold time is reached. The threshold time can be set separately on the side of the cross-over protection board, or it can be set separately on the high-order cross board. Preferably, the respective threshold times are respectively set in the low-order cross protection board and the high-order cross board. For the low-order cross protection board, the threshold time is set according to the maximum time required for the high-order cross board configuration service; for the high-order cross board The threshold time is based on the minimum time required to configure the business for the low-order cross protection board. In this embodiment, the threshold time is preset, thereby avoiding the unrestricted waiting of the low-order cross protection board and the high-order cross board, thereby further saving time. Method embodiment three In this embodiment, a method for protecting the optical transmission device protection switching from the low-order cross protection board side will be described. 2 is a flow chart of a method for protecting and protecting a three-optical transmission device in the method of the present invention. As shown in FIG. 2, the embodiment includes: Step S202: After receiving the signal for triggering the switching, the low-order cross protection board performs the switching service configuration; Step S204, after the switching service configuration of the second-order cross protection board completes the switching service configuration, the high-order intersection is performed. The board sends the first switching ready signal; in step S206, if the second switching ready signal sent by the high-order cross-board after the cross-service configuration is completed is received within the first threshold time, the low-order cross protection board enables the switching service; otherwise, The low-order cross protection board enables the switching service itself. In this embodiment, the first threshold time is set according to the maximum time setting of the cross-service configuration according to the high-order cross-board. In this embodiment, since the first threshold time is awaited, the high-order cross-board has sufficient time for the cross-service configuration, and the service interruption is caused due to the inconsistent switching action of the high-order cross-board and the low-order cross-protection board. The problem, in turn, achieves the beneficial effect of improving the stability of the communication system. Method Embodiment 4: In this embodiment, a method for protecting and protecting an optical transmission device from a high-order cross-board side will be described. 3 is a flow chart of a method for protecting switching of four optical transmission devices according to an embodiment of the method of the present invention. As shown in FIG. 3, the embodiment includes: Step S302: After receiving the signal for triggering the switching, the high-order cross-board performs cross-service configuration; Step S304, after the high-order cross-protection board completes the cross-service configuration, cross-protection to the rank The board sends a second switching ready signal. Step S306, if the first switching ready signal sent by the low-order cross protection board after the switching service configuration is completed is received within the second threshold time, the high-order cross-board enables the cross-service; otherwise, High-order cross boards enable cross-services themselves. In this embodiment, the second threshold time is set according to the longest time of the switching service configuration performed by the low-order cross protection board. In this embodiment, since the second threshold time is waited for, the low-order cross protection is ensured. The board has enough time to perform the switching service configuration, and solves the problem that the high-order cross board and the low-order cross protection board are inconsistent in switching operations, resulting in a service interruption, thereby achieving the beneficial effect of improving the stability of the communication system. Method Embodiment 5: FIG. 4 is a flowchart of a method for protecting and protecting a five-optical transmission device in the method of the present invention. As shown in FIG. 4, this embodiment includes: Step S402: When a switching occurs, a high-order cross-board protection switching protocol is configured to configure a cross-service; and in step S404, when a switching occurs, the low-order cross protection board is protected according to the protected low-order cross. Work board data, configuration switching service, because the low-order cross protection board needs to process more data information, this step takes a relatively long time; Step S406, after the high-order cross-board completes the service configuration, sends the first to the low-order cross protection board. If the service is configured, the service is disabled, and the service configuration is not effective. Step S408: After the service configuration is completed, the step-by-step protection board is configured. The high-order cross-board sends the first switching ready signal. At this time, the low-order cross protection board completes the service configuration, but the service is turned off because the page turning (unlocking) action is not performed. Step S410, the high-order cross board waits for the low-order cross protection. The switch ready signal sent by the board (ie, the first switching ready signal), if the high-order cross board is at the second threshold time If the first switching ready signal sent by the low-order cross protection board is received in T2, the process goes to step S414; otherwise, the process goes to step S418; wherein, the second threshold time T2, when the maximum data information is processed according to the low-order cross protection board, The time is set. For example, if the time required for the low-order cross protection board to configure the service is 10 seconds, the threshold time of the high-order cross-board can be set to 10 seconds. In step S412, the low-order cross protection board waits for the high-order cross board to send. If the low-order cross protection board receives the "second switching ready signal" sent by the high-order cross-board in the first threshold time T1, then go to step S416; otherwise, go to step S420; The threshold time T 1 is set according to the occupied time when the high-order cross-board processes the most data information. For example, if the time required for the high-order cross-board to configure the full service is 5 seconds, the threshold time of the low-order cross protection board can be set to 5 seconds; In step S414, after the high-order cross-board receives the "second switching ready signal" sent by the low-order cross protection board, the service is enabled, that is, the page turning (unlocking) operation is performed, and the service configured in step S402 is valid, and step S422 is performed. Step S416, after receiving the "first switching ready signal" sent by the high-order cross-board, the low-order cross protection board opens the service enable, that is, performs a page turning (unlocking) action, so that the service configured in the step 4 S404 takes effect. Step S424; Step S418, the high-order cross-board jumps out and waits for the "replacement ready signal" action, and the service enable is enabled, that is, the page turning (unlocking) action is performed, the service configured in step S302 is valid, and step S422 is performed; The step cross protection board jumps out and waits for the "replacement ready signal" action, and the service enable is enabled, that is, the page turning (unlocking) action is performed, the service configured in step S404 is valid, and step S424 is performed; step S422, the high-order cross-board clearing "switching ready"Signal"; Step S424, the low-order cross protection board clears the "switching ready signal". In this embodiment, the timing of the first threshold time and the first threshold time is usually sent from the corresponding board software to the time difference of the configuration of the board software to the register. Because the situation of each board running is very complicated, the length of time for each service configuration is different. Therefore, the accuracy of timing is not very strict. The first threshold time can be set from the low-order cross protection board to configure the switching service. The second threshold time can be set from the high-order cross-board configuration cross-service. For simplicity, the first threshold time and the second threshold time can be set to be the same. Preferably, the first threshold time can be set according to the maximum time setting of the cross-service configuration according to the high-order cross-board; the second threshold time is set according to the long-term setting of the switching service configuration by the low-order cross protection board. In this embodiment, waiting for the "switching ready signal" limits the execution time of step S414 and step S416. Meanwhile, the time of signal transmission between the high-order cross-board and the low-order cross-protection board can be approximately ignored, and the two are respectively "" The configuration enable time "can achieve a good synchronization in theory, so that the service interruption time caused by the 1:N board level switching is well controlled. System Embodiment 1 FIG. 5 is a schematic diagram of a system for protecting a switching of an optical transmission device according to Embodiment 1 of the present invention. As shown in FIG. 5, the optical transmission equipment protection switching system of this embodiment includes: a high-order cross-board, and a 1:N protection switching group. 1 : The N protection switching group includes a graded cross protection board and a stepped cross board to be protected, and the high order cross board and the 1:N protection switching group are connected by a communication line. In this embodiment, the low-order cross protection board is configured to perform the switching service configuration after receiving the signal for triggering the switching, and after the switching service configuration is completed, send the first switching ready signal to the high-order cross-board; When the second switching ready signal sent by the cross-board is enabled, the switching service is enabled. The high-order cross-connecting board is configured to perform cross-service configuration after receiving the trigger switching signal. After completing the cross-service configuration, the low-order cross protection is performed. The board sends a second switching ready signal; and when the first switching ready signal sent by the low-order cross protection board is received, the cross service is enabled. The method implemented in this embodiment can refer to the related descriptions of the method embodiments 1 to 5, and has the beneficial effects of the foregoing embodiments, and the details are not repeated in J3⁄4. System Embodiment 2: This embodiment will increase the threshold time limit on the basis of the second embodiment of the system, thereby saving time as much as possible while ensuring the configuration of the high-order cross-board and the cross-section protection board. Ensure the normal operation of the system. In this embodiment, the low-order cross protection board is configured to enable the switching service after completing the switching service configuration and receiving the second switching ready signal within the first threshold time, otherwise, when the first threshold time arrives, Enable the switching business. The first threshold time is set according to the maximum time of the cross-service configuration of the high-order cross-board. In this embodiment, the high-order cross-board is configured to enable the cross-service after the cross-service configuration is completed, and the first switch-ready signal is received within the second threshold time. Otherwise, when the second threshold time is reached, Can cross business. The second threshold time is set according to the longest time of the switching service configuration of the low-order cross protection board. In this embodiment, since the preset threshold time is awaited, the low-order cross protection board and the high-order cross board have sufficient time for the switching service configuration, and the switching operation of the high-order cross board and the low-order cross protection board is solved. Inconsistent, leading to the problem of business interruption, and thus the beneficial effect of improving the stability of the communication system. The method implemented in this embodiment can refer to the related descriptions of the method embodiments 1 to 5, and has all the beneficial effects of the foregoing embodiments, and is not repeated in J3⁄4. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be executed by a computing device The program code is implemented so that they can be stored in the storage device by the computing device, and in some cases, the steps shown or described can be performed in a different order than here, or they can be separately produced. The individual integrated circuit modules are implemented, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.
Claims
1. 一种光传输设备保护倒换的方法， 包括： A method for protecting switching of an optical transmission device, comprising:
低阶交叉保护板与高阶交叉板中的任一端在配置保护业务完成 后， 向对端发送倒换就绪信号； After the configuration protection service is completed, the low-order cross protection board and the high-order cross board send a switching ready signal to the opposite end;
所述低阶交叉保护板与高阶交叉板中的任一端在配置保护业务完 成后， 在接收到来自对端的倒换就绪信号时， 使能其配置的保护业务。 After the configuration protection service is completed, the low-order cross protection board and the high-order cross board enable the protection service of the configuration when receiving the switching ready signal from the opposite end.
2. 根据权利要求 1所述的方法， 其中， 所述低阶交叉保护板与高阶交叉 板中的任一端使能其配置的业务包括： 2. The method according to claim 1, wherein the services enabled by any one of the low-order cross protection board and the high-order cross board are configured to:
所述低阶交叉保护板与高阶交叉板中的任一端在配置保护业务完 成后的门限时间内接收到来自对端的倒换就绪信号， 使能其配置的保 护业务。 The low-order cross protection board and the high-order cross board receive the switching ready signal from the peer end within the threshold time after the configuration protection service is completed, and enable the configured protection service.
3. 根据权利要求 2所述的方法， 其中， 所述低阶交叉保护板与高阶交叉 板中的任一端在配置保护业务完成后的所述预设时间内没有接收到来 自对端的倒换就绪信号； 所述方法还包括： The method according to claim 2, wherein the low-order cross protection board and the high-order cross board do not receive the switching from the opposite end within the preset time after the configuration protection service is completed. Signal; the method further includes:
所述低阶交叉保护板与高阶交叉板中的任一端在配置保护业务完 成后， 在所述门限时间到达后， 使能其配置的业务。 After the configuration protection service is completed, the low-order cross protection board and the high-order cross-layer board enable the configured service after the threshold time is reached.
4. 根据权利要求 2或 3所述的方法， 其中， 4. The method according to claim 2 or 3, wherein
对于所述氐阶交叉保护板， 所述门限时间才艮据所述高阶交叉板配 置业务所需的最长时间设置； For the step-edge cross protection board, the threshold time is set according to the maximum time required for the high-order cross-board configuration service;
对于所述高阶交叉板， 所述门限时间根据所述低阶交叉保护板配 置业务所需的最长时间设置。 For the high-order cross-board, the threshold time is set according to the longest time required for the low-order cross protection board to configure the service.
5. 根据权利要求 4所述的方法， 其中， 对于所述低阶交叉保护板， 所述 保护业务为倒换业务； 对于所述高阶交叉板， 所述保护业务为交叉业 务。 The method according to claim 4, wherein, for the low-order cross protection board, the protection service is a switching service; and for the high-order cross board, the protection service is a cross service.
6. —种光传输设备保护倒换的系统， 包括高阶交叉板、 1： N保护倒换组, 所述 1 : N保护倒换组包括低阶交叉保护板和其需要保护的低阶交叉 板， 所述高阶交叉板和 1 : N保护倒换组通过通讯线相连， 所述低阶交叉保护板， 设置为在接收到触发倒换的信号后， 进行 倒换业务配置， 完成所述倒换业务配置后， 向所述高阶交叉板发送第 一倒换就绪信号； 并在收到所述高阶交叉板发送的第二倒换就绪信号 时， 使能所述倒换业务； 6. A system for protecting and switching optical transmission equipment, comprising a high-order cross-board, a 1:N protection switching group, the 1:N protection switching group comprising a low-order cross protection board and a low-order cross board to be protected, The high-order cross board and the 1:N protection switching group are connected by a communication line. The low-order cross protection board is configured to perform a switching service configuration after receiving the triggering switching signal, and after completing the switching service configuration, send a first switching ready signal to the high-order cross-board; and receive When the second switching ready signal is sent by the high-order cross-board, the switching service is enabled;
所述高阶交叉板， 设置为在接收到触发倒换的信号后， 进行交叉 业务配置， 在完成所述交叉业务配置后， 向所述氏阶交叉保护板发送 所述第二倒换就绪信号； 并在收到所述低阶交叉保护板发送的所述第 一倒换就绪信号时， 使能所述交叉业务。 The high-order cross-connecting board is configured to perform a cross-service configuration after receiving the signal for triggering the switching, and after the completing the cross-service configuration, send the second switching ready signal to the second-order cross protection board; And when the first switching ready signal sent by the low-order cross protection board is received, the cross service is enabled.
7. 根据权利要求 6所述的系统， 其中， 所述低阶交叉保护板， 设置为在 完成所述倒换业务配置后的第一门限时间内收到第二倒换就绪信号 时， 使能所述倒换业务， 否则， 在所述第一门限时间到达时， 使能所 述倒换业务。 The system according to claim 6, wherein the low-order cross protection board is configured to enable the second switching ready signal when receiving the second switching ready signal within the first threshold time after the switching service configuration is completed. The service is switched, otherwise, when the first threshold time arrives, the switching service is enabled.
8. 根据权利要求 7所述的系统， 其中， 所述第一门限时间根据所述高阶 交叉板进行交叉业务配置的最长时间设置。 8. The system according to claim 7, wherein the first threshold time is set according to a maximum time of the cross-service configuration of the high-order cross-board.
9. 根据权利要求 6所述的系统， 其中， 所述高阶交叉板， 设置为在完成 所述交叉业务配置后的第二门限时间内收到第一倒换就绪信号时， 使 能所述交叉业务， 否则， 在所述第二门限时间到达时， 使能所述交叉 业务。 9. The system according to claim 6, wherein the high-order cross-board is configured to enable the cross when a first switching ready signal is received within a second threshold time after completing the cross-service configuration. Traffic, otherwise, when the second threshold time arrives, the cross service is enabled.
10. 根据权利要求 9所述的系统， 其中， 所述第二门限时间根据所述低阶 交叉保护板进行倒换业务配置的最长时间设置。 10. The system according to claim 9, wherein the second threshold time is set according to the longest time of the switching service configuration of the low-order cross protection board.
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| CN201010256260.7 | 2010-08-17 | ||
| CN201010256260.7A CN101908931B (en) | 2010-08-17 | 2010-08-17 | The method and system of protection switching of optical transmission equipment |
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| CN101908931B (en) * | 2010-08-17 | 2015-08-12 | 中兴通讯股份有限公司 | The method and system of protection switching of optical transmission equipment |
| WO2011157162A2 (en) * | 2011-06-01 | 2011-12-22 | 华为技术有限公司 | Protection switching method and apparatus |
| CN107483103A (en) * | 2017-10-11 | 2017-12-15 | 深圳市新格林耐特通信技术有限公司 | OLT device and OLT device redundancy protected method |
| CN111131935B (en) * | 2019-12-27 | 2022-03-29 | 上海欣诺通信技术股份有限公司 | OTN switching method, device, equipment and storage medium |
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2010
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558638A (en) * | 2004-01-18 | 2004-12-29 | 中兴通讯股份有限公司 | An inter-processor communication method based on message |
| CN1984503A (en) * | 2006-04-07 | 2007-06-20 | 华为技术有限公司 | System and method for crossed scheduling |
| CN101145869A (en) * | 2007-08-02 | 2008-03-19 | 中兴通讯股份有限公司 | Switching method |
| CN101969583A (en) * | 2009-07-28 | 2011-02-09 | 中兴通讯股份有限公司 | Total service cross configuration method and device for optical transmission system |
| CN101908931A (en) * | 2010-08-17 | 2010-12-08 | 中兴通讯股份有限公司 | Method and system of protection switching of optical transmission equipment |
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| Publication number | Publication date |
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| CN101908931B (en) | 2015-08-12 |
| CN101908931A (en) | 2010-12-08 |
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