WO2012041061A1 - 光网络的保护方法和装置 - Google Patents

光网络的保护方法和装置 Download PDF

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Publication number
WO2012041061A1
WO2012041061A1 PCT/CN2011/073819 CN2011073819W WO2012041061A1 WO 2012041061 A1 WO2012041061 A1 WO 2012041061A1 CN 2011073819 W CN2011073819 W CN 2011073819W WO 2012041061 A1 WO2012041061 A1 WO 2012041061A1
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WIPO (PCT)
Prior art keywords
protection
module
information
service
control processing
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PCT/CN2011/073819
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English (en)
French (fr)
Inventor
李龙
程智刚
赵瑞锋
王奇峰
石昳娜
Original Assignee
中兴通讯股份有限公司
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Publication of WO2012041061A1 publication Critical patent/WO2012041061A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03Arrangements for fault recovery
    • H04B10/032Arrangements for fault recovery using working and protection systems

Definitions

  • the present invention relates to the field of optical network communication technologies, and in particular, to a method and an apparatus for protecting an optical network.
  • WDM Wavelength Division Multiplexing
  • the self-healing capability of an optical network refers to the ability of an optical network to maintain an acceptable level of service quality in the event of various failures. It is an important component of optical network integrity.
  • Protection switching refers to providing reserved protection resources for bearer services of optical networks. When the network fails, the affected services are scheduled to be transmitted to the pre-allocated protection path to recover the affected services.
  • the wavelength division optical network protection type can be divided into two types: multiplex section protection type and channel segment protection type.
  • its protection device is generally composed of detectors, actuators and controllers, and these devices are each implemented by different function boards, so that one protection device will require different functions. veneer.
  • the alarms such as Loss of Signal (LOS) and Loss of Frame (LOF) are detected by the detector of the protection device. Then, the detector will The alarms are reported to the controller, and the controller sends a switching command to the executor. The interaction between the signalings is communicated through the backplane bus in the network element.
  • LOS Loss of Signal
  • LEF Loss of Frame
  • the inventors have found that the above devices are independent of each other, and the switching time of the working line switching to the protection line is the sum of the corresponding execution time of each device and the time of signaling interaction between them, thus, to a large extent The time for protection switching is extended, and there may be cases where the service switching is not continuous.
  • the switching conditions to be performed by the multiplex section and the channel segment protection type are different (for example, when multiplex section protection and channel section configuration protection are used, when the optical power is used as a performance parameter, the optical power threshold to be configured is different. Therefore, the hardware device for performing whether the switching condition is satisfied is also different.
  • a primary object of the present invention is to provide a method and apparatus for protecting an optical network to at least solve the problem of prolonging the time of protection switching in the prior art.
  • a method for protecting an optical network including: a protection detection module transmitting the detected link failure information to a protection control processing module on a same board as the protection detection module;
  • the protection control processing module generates a protection execution command corresponding to the link failure information, and sends the protection execution command to the protection execution module;
  • the protection execution module transmits the service on the failed link indicated by the link failure information. Switch to the protection link indicated by the above protection execution command.
  • the protection execution module is located on the same board as the protection detection module and the protection control processing module.
  • the protection control processing module generates a protection execution command corresponding to the link failure information, where the protection control processing module acquires, from the protection information storage module, a service corresponding to the service on the faulty link indicated by the link failure information. Type and protection processing information; The protection control processing module generates the protection execution command according to the service type and the protection processing information.
  • the protection method of the optical network further includes: configuring each of the protection information storage modules The type of service and protection processing information corresponding to the service.
  • the above service types include one of the following: permanent connection service, soft permanent connection service.
  • the protection information storage module is located on the same board as the protection detection module and the protection control processing module.
  • a protection device for an optical network including: a protection execution module, a protection detection module and a protection control processing module on a same board, wherein the protection detection module is configured to The detected link failure information is sent to the protection control processing module; the protection control processing module is configured to generate a protection execution command corresponding to the link failure information, and send the protection execution command to the protection execution module; Execution module is set to The service on the failed link indicated by the link failure information described above is switched over to the protection link indicated by the above-mentioned protection execution command.
  • the protection execution module is located on the same board as the protection detection module and the protection control processing module.
  • the device further includes: a protection information storage module, configured to configure a service type and protection processing information corresponding to the various services, where the protection control processing module is further configured to obtain the link failure information indication from the protection information storage module The service type and the protection processing information corresponding to the service carried on the faulty link, and the foregoing protection type is generated by the foregoing service type and the protection processing information.
  • the protection information storage module is located on the same board as the protection detection module and the protection control processing module.
  • FIG. 1 is a structural block diagram of a protection apparatus for an optical network according to an embodiment of the present invention
  • FIG. 2 is a preferred flowchart of a method for protecting an optical network according to an embodiment of the present invention. Another preferred flowchart of the method for protecting an optical network according to an embodiment of the present invention;
  • FIG. 2 is a preferred flowchart of a method for protecting an optical network according to an embodiment of the present invention. Another preferred flowchart of the method for protecting an optical network according to an embodiment of the present invention;
  • FIG. 1 is a structural block diagram of a protection apparatus for an optical network according to an embodiment of the present invention
  • FIG. 2 is a preferred flowchart of a method for protecting an optical network according to an embodiment of the present invention
  • FIG. 1 is a structural block diagram of a protection apparatus for an optical network according to an embodiment of the present invention
  • FIG. 2 is a preferred flowchart of a method for
  • FIG. 4 is a preferred flowchart of steps performed by the network management module according to an embodiment of the present invention
  • FIG. 5 is an ASON module according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another preferred embodiment of the protection method of the optical network according to the embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a specific application scenario of the protection method according to the embodiment of the present invention;
  • FIG. 8 is a block diagram showing a preferred configuration of a protection device for an optical network according to an embodiment of the present invention.
  • the embodiment provides a protection device for an optical network.
  • the inspector, the controller, and the actuator of the protection device are integrated on a function board (also integrated on a chip), where
  • the function boards mainly include: a protection information storage module, a protection detection module, a protection control processing module, and a protection execution module.
  • There are two registers in the protection information storage module (including: Register 1 and Register 2).
  • the register 1 mainly stores various types of protections and related types of protection types when establishing a PC (Permanent Connection) service
  • the register 2 mainly stores when a SPC (Soft Permanent Connection) service is established.
  • PC Personal Computer Connection
  • SPC Soft Permanent Connection
  • the protection control processing module has a register 3 and a register 4, wherein the register 3 mainly stores an execution decision condition regarding protection processing when processing the PC service; and the register 4 mainly stores a protection processing execution decision condition regarding the SPC service.
  • the protection check module detects the relevant fault information on the relevant path, the detected information is notified to the protection control processing module, and after receiving the detection information, the protection control processing module reads the relevant service from the protection information storage module. Protection information at the time of establishment, relevant switching criteria for the protection, and related policy information for the protection.
  • the detection information from the top 4 is processed in conjunction with the relevant decision criteria in the protection control processing module.
  • the protection execution module performs the protection action, and reports the execution result to the ASON module or the network management module through the protection information storage module.
  • the network management module which is used to send the relevant service information and all the protection information of the service establishment to the relevant module when the PC service or the SPC service is established on the network management system. If the PC service is set up, the network management module sends the S1 interface packet through the S1 interface. The network management module sends the protection information to the protection information storage module in the protection function card. Does not pass the ASON module. Specifically, the network management module sends the relevant protection information to the register 1 in the protection information storage module. If the SPC service is established on the network management system, the sent message information is first sent to the ASON module through the S2 interface. Then, the information about the protection and the protection policy of the relevant SPC service are sent to the protection information storage module by the ASON module through the S3 port.
  • the protection information of the ASON service is delivered.
  • the information can be sent with the protection information of the SPC service. It can also be delivered by the ASON module when the protection function is configured on the board, or by other means. carry out).
  • the specific flowchart of the network management module is shown in FIG. 4 .
  • ASON module which mainly implements the function of the optical network control plane.
  • the module receives the relevant service information delivered by the network management system through the S2 interface, and simultaneously provides relevant protection information in the above information.
  • the protection policy information and the protection criteria information of the ASON service are sent to the protection information storage module in the protection function board through the S3 interface. Specifically, it is sent to register 2 in the protection information storage module.
  • the present invention mainly implements the protection information processing module and the protection information processing module in the protection function board in the intelligent switching optical network-ASON network.
  • the specific flowchart of the ASON module is shown in FIG. 5.
  • Protection detection module which is mainly responsible for detecting the alarm information and alarm type of the working line and related protection lines in the link.
  • the relevant alarm information can be determined by detecting the frame structure of the signal or other methods.
  • This module not only detects the link status of the working line but also detects the link status of the protection line, and notifies the protection control processing module and the protection information storage module about the alarm information.
  • Protection control processing module which is mainly responsible for reading relevant protection processing criteria from register 3 or register 4 according to different service types established when receiving the alarm information and link information reported by the protection detection module ( For example, setting certain thresholds, when the performance parameters (optical power, signal-to-noise ratio, etc.) of the service signals on the working path exceed these thresholds, and the protection path is normal, the service is switched) and the registers of the protection information storage module are 1 and the relevant service type and its corresponding protection policy information read in the register 2, and the related commands are issued to the protection execution module. At the same time as the command is issued, the relevant protection processing information is notified to the protection information storage module.
  • a specific flowchart of the protection control processing module is shown in FIG. 6.
  • the protection execution module which mainly performs the protection command execution after receiving the protection execution command issued by the protection control processing module (for example: the general protection execution module is the traditional optical switch, but the protection execution module is also It can be a device module for port assignment, etc.).
  • the protection control processing module for example: the general protection execution module is the traditional optical switch, but the protection execution module is also It can be a device module for port assignment, etc.
  • the protection execution module When the working path fails and the protection path is normal, the service is switched to protection. Or when the work path failure disappears, the traffic is switched to the original working path. Or perform corresponding actions according to other protection policies or protection methods (such as linear M:N protection, different service levels, and a protection path works).
  • the protection information storage module which mainly stores all the application information about the protection of the PC service or the SPC service.
  • the information may be sent to the protection information storage module by the network management system or the AS ON module before the service is established, or may be When the service is established, the application information is sent to the protection information storage module along with the protection information when the service is established. When a service related to a PC or an SPC is established, the protection information of the service is sent to the protection information storage module through different protection packet information.
  • the protection information about the service for example, the configuration parameters of the protection group, the threshold of the service signal performance parameter, the switching condition of the protection switching, etc.
  • the protection information storage module for example, the configuration parameters of the protection group, the threshold of the service signal performance parameter, the switching condition of the protection switching, etc.
  • the protection control processing module so that when the protection detection module detects the alarm, the protection control processing module directly reads the relevant protection information from the register 1 in the protection information storage module, and executes according to the switching stored in the register 3 of the self module.
  • the rules and other issues are issued with the relevant protection execution commands, and then the related processing information is reported to the network management system.
  • the signaling of the service establishment on the network management interface is sent to the ASON module through the S2 interface, and the ASON module will provide information about the protection requirements of the service and the protection policies corresponding to various SPC services.
  • the protection information storage module and the protection control processing module are sent to the protection function board through the S3 interface. If the protection detection module detects that there is a fault on the working path, the protection control processing module directly reads information about the service type and the corresponding service policy from the register 2 in the protection information storage module, and then processes the information by itself, and does not need to pay ASON again. The module performs processing, and notifies the protection information storage module when the processing is sent to the protection execution module.
  • FIG. 2 is a preferred flowchart of a method for protecting an optical network according to an embodiment of the present invention, which includes:
  • the protection detection module sends the detected link fault information to a protection control processing module that is located on the same board as the protection detection module.
  • FIG. 3 is another preferred flowchart of a method for protecting an optical network according to an embodiment of the present invention, including:
  • the protection detection module sends the detected link fault information to a protection control processing module that is located on the same board as the protection detection module.
  • the protection control processing module acquires, from the protection information storage module, a service type and protection processing information corresponding to the service carried on the fault link indicated by the link fault information; and then, the protection control processing module is configured according to the service type and the foregoing
  • the protection processing information generates the above-mentioned protection execution command, and transmits the above-mentioned protection execution command to the protection execution module.
  • the foregoing protection execution module switches the service on the failed link indicated by the link fault information to the protection link indicated by the protection execution command.
  • the protection control processing module can perform service switching on different types of services, so that the protection method in this embodiment can be applied to different services at the same time.
  • the service type includes one of the following: a PC service and an SPC service.
  • the protection method can refer to the flow shown in FIG. 6.
  • the method before the protection detection module sends the detected link failure information to the protection control processing module on the same board as the protection detection module, the method further includes: configuring each of the protection information storage modules The type of service and protection processing information corresponding to the service.
  • the process of establishing a service by the network management module includes: S402: Establish a related service on the network management interface.
  • S404 determining whether the service is an SPC service; if yes, proceeding to S406; if not, proceeding to S408;
  • S406 The service information established by the network management system is sent to the ASON module through the S2 interface.
  • S408, the network management module sends the protection information about the PC service to the protection information storage module through the S1 interface.
  • various services are set up on the NMS, and various services have corresponding protection types (for services without protection type, you can set the protection type to be empty).
  • protection types for services without protection type, you can set the protection type to be empty.
  • information about the settings of various protection types, the configuration of the protection group, and the decision criteria for the protection execution can be sent to the protection information storage module and the protection control processing module of the protection function board through the S1 interface.
  • the above information may be sent when the service is established, or may be separately sent to the protection information storage module and the protection control processing module written to the protection function board (the above protection information is issued once when the service is first established, If there is no change in the future, you do not need to send it again. If there is any change, you only need to send the change information.
  • the SPC service information and the related service protection type information are sent to the ASON module through the S2 interface.
  • the ASON module passes the protection information about the service.
  • the S3 interface is sent to the protection function board.
  • the information about the protection type, the protection processing criteria, the protection policy, and the protection execution conditions of the various service levels of the SPC are sent to the protection information storage module through the S3 interface.
  • the information may be sent to the protection information storage module of the protection function board separately when the service is established.
  • the protection information about the SPC services is implemented for the first time. If there is no future If there is a change, it does not need to be issued again, until the protection information changes, and only the relevant information of the change is issued.
  • the protection information storage module and the protection detection module and the protection control processing module are located on the same board. Thereby, the protection switching time can be further shortened.
  • the protection function boards 1 and 2 each include the following hardware parts: a protection detection module, a protection control processing module, a protection execution module, a protection information storage module, and the like.
  • the network management module and the ASON module are also included.
  • a PC service is established.
  • the network management module sends the information about the protection type of the PC service, the configuration of the protection group, and the decision criteria of the protection to the protection function of the protection function board 1 and the protection function board 2 through the S1 port.
  • the module and protection control processing module then the establishment of the business.
  • the link corresponding to the optical forwarding unit 1 and the optical forwarding unit 3 establishes a working service path
  • the link corresponding to the optical forwarding unit 2 and the optical forwarding unit 4 establishes a protection service path.
  • the service can be received by using dual-issue or dual-transmitting.
  • the protection detection module in the protection function board 2 receives a forward alarm information through the R1_I1 interface of the board.
  • the protection function board 1 receives a reverse alarm message through the R1_I1 port of the board.
  • the protection control processing module After the information detection module in the protection function board of the two ends detects the alarm, it notifies the protection control processing module of the board. The alarm information is also notified to the protection information storage module (to form the following protection information packet). Use). Then, the protection control processing module reads related protection information (for example, protection group ID, switching type, waiting recovery time, protection execution condition, etc.) from the register 1 of the protection information storage module and stores it according to the register 3 in the own module.
  • the protection execution conditions and related criteria for example, the protection line corresponding to the working line and the optical forwarding unit 2 and the optical forwarding unit 4 corresponding to the optical forwarding unit 1 and the optical forwarding unit 3 are found to belong to one protection group, and the working line is faulty.
  • the protection line is normal, and the performance parameter value of the service signal exceeds the previously set threshold.
  • the protection execution module is sent to the protection execution module of the card to switch the service traffic to the optical forwarding unit 2 and the optical forwarding unit 4.
  • This protection line The protection execution module in the protection function board 1 and the protection function board 2 processes the service flow line after receiving the protection execution command issued by the protection control processing module (for example, if the protection execution module is a conventional optical switch, Then switch the optical switch to the protection line. If the protection execution module is a wavelength selection device or other module, perform port assignment and work traffic switching. And the result of the protection execution is notified to the protection information storage module.
  • the protection information storage module After receiving the execution result information reported by the protection execution module, the protection information storage module is encapsulated into the protection information data packet together with the original detection information and the protection control processing information.
  • the protection information storage module reports the protection information packet to the network management module through the S1 port, and the network management module displays the related information in the protection information data packet in a certain manner (for example, by using a graphic or a data table).
  • the protection method of the optical network includes the following steps: The service establishment request is initiated on the network management interface.
  • the service establishment request is sent to the ASON module through the S2 interface.
  • the ASON module establishes services based on its connection policy, routing policy, and protection policy. If the service is a service with a protection type, for example, the established service is a service between the protection function board 1 and the protection function board 2, and the service is provided with a protection attribute.
  • the ASON module is based on the related policy. For example, the calculated working path is the link corresponding to the optical forwarding unit 1 and the optical forwarding unit 3.
  • the protection path is the link corresponding to the optical forwarding unit 2 and the optical forwarding unit 4.
  • information about the protection type, protection policy, and protection execution conditions of the ASON service is delivered to the protection information storage module and the protection control processing module of the protection function board through the S3 interface (the information can be in the service). It is sent to the protection information storage module along with the protection information of the service, or it can be configured by the upper point configuration before the service is established.
  • the information about the service protection when the service is established is forwarded to the protection function board through the S3 interface after the ASON module receives the service establishment request information sent by the network management system.
  • the protection detecting module in the protection function board 2 receives a positive alarm information through the R1_I1 port.
  • the protection function board 1 also receives a reverse alarm message through the R1_I1 port of the board.
  • the detection method of these alarm information can be implemented by existing mature technologies.
  • the protection detection module will detect the path alarm information (for example, the working path corresponding to the optical forwarding unit 1 and the optical forwarding unit 3 is faulty, and the protection path corresponding to the optical forwarding unit 2 and the optical forwarding unit 4 is good, etc.
  • the protection control processing module and the protection information storage module are reported to the protection function board. After receiving the path alarm information, the protection control processing module first reads the type of the service and the call request in the register 2 of the protection information storage module.
  • Relevant protection information for example, the network management now initiates the protection of the function board 1 to the diamond function of the protection function board 2, the protection type of the diamond level service is the 1+1 protection type, etc.
  • the protection policy, protection criteria, and protection execution conditions of the ASON diamond-level service directly process the path alarm information, and notify the protection information storage module and the protection execution module at the same time. If the processing information received by the protection execution module includes an execution command, the protection execution module performs the corresponding action, and if not, does not perform any action.
  • the protection control processing module in the protection function board receives the work link failure alarm
  • the protection control processing module at both ends will move to the protection execution module according to the failure of the diamond-level service work and the business traffic being switched to the protection path.
  • the command to perform the switching is performed, and the traffic corresponding to the optical forwarding unit 1 and the optical forwarding unit 3 is switched to the path corresponding to the optical forwarding unit 2 and the optical forwarding unit 4.
  • the protection execution module notifies the protection information storage module (the protection information storage module encapsulates the protection information data packet).
  • the protection information storage module encapsulates the detection information reported by the protection detection module and the control processing information reported by the protection control processing module and the execution result information reported by the protection execution module into a protection information data packet.
  • the ASON module is reported to the ASON module for processing by the ASON module.
  • the ASON module reports the information to the NMS to query the NMS.
  • the degree of integration of the detector, controller, and actuator of the protection device is improved as compared with the prior art.
  • the present invention determines whether the protection of the channel layer or the multiplex section layer is performed by detecting the structure of the service signal (for example, a frame structure of the signal, or the like) or by using the relevant protection level information read from the protection information storage module. Protection, that is, the invention is applicable to both optical network protection of channel segments and multiplex segments.
  • the present invention can be used for both PC service protection and SPC service protection type through different message formats.
  • FIG. 8 is a block diagram of a preferred structure of a protection device for an optical network according to an embodiment of the present invention, including: a protection execution module 802, a protection detection module 804 and a protection control processing module 806 on the same board.
  • the protection execution module 802, the protection control processing module 806, and the protection detection module 804 are sequentially connected.
  • the protection detection module 804 is configured to send the detected link failure information to the protection control processing module 806; the protection control processing module 806 is configured to generate a protection execution command corresponding to the link failure information, and execute the protection The command is sent to the protection execution module 802; the protection execution module 802 is arranged to switch the traffic on the failed link indicated by the link failure information described above to the protection link indicated by the protection execution command.
  • the protection device is integrated on a single board, thereby solving the problem that the protection switching time is extended in the prior art, thereby achieving the effect of shortening the protection switching time.
  • the protection execution module 802 is located on the same board as the protection detection module 804 and the protection control processing module 806.
  • the protection device may further include a protection information storage module 808 connected to the protection control processing module 806, configured to save the service type and protection processing information corresponding to the configured various services. Interest.
  • the protection control processing module 804 can obtain, from the protection information storage module 808, the service type and protection processing information corresponding to the service uploaded by the fault link indicated by the link failure information, and according to the service type and the foregoing The protection processing information generates the protection execution command.
  • the protection control processing module can perform service switching on different types of services, so that the protection device in this embodiment can be applied to different services at the same time.
  • the protection information storage module 808 is located on the same board as the protection detection module 804 and the protection control processing module 806. In this way, the protection switching time can be further shortened.
  • the foregoing service type includes one of the following: a PC service and an SPC service.
  • 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 implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Optical Communication System (AREA)

Description

光网络的保护方法和装置 技术领域 本发明涉及光网络通信技术领域, 尤其涉及一种光网络的保护方法和装 置。 背景技术 随着光通信技术的迅速发展, 光网络的自愈保护能力也越来越重要, 基于 波分复用 ( Wavelength Division Multiplexing, 简称为 WDM ) 技术的光通信也 是如此。 光网络的保护自愈能力是指光网络在遇到各种故障时仍能够维持可接 受的业务质量等级的能力, 它是光网络完整性的重要组成部分。 保护倒换是指为光网络的承载业务提供预留的保护资源。 当网络发生故障 时, 受影响的业务被安排到预先分配好的保护路径上进行传输, 以此来恢复受 影响的业务。 目前, 波分光网络保护类型可以分为两种: 复用段保护类型和通 道段保护类型。 不管是何种形式的保护类型, 它的保护装置一般由检测器、 执行器和控制 器组成, 并且这些器件都会分别由不同的功能单板来实现, 这样, 一个保护装 置就会需要不同的功能单板。在工作过程中,工作线路信号的信号丢失(Loss of Signal, 简称为 LOS )、 帧丢失( Loss of Frame, 简称为 LOF )等告警是由保护 装置的检测器来检测的, 然后, 检测器将这些告警上报给控制器, 控制器再给 执行器下发倒换命令, 这些信令之间的交互是通过网元内的背板总线进行通信 的。 在现有技术中, 发明人发现上述器件是相互独立的, 工作线路倒换到保护 线路的倒换时间是各个器件的相应执行动作时间和它们之间信令交互的时间 之和, 这样, 很大程度上延长了保护倒换的时间, 可能存在业务倒换不连续的 情况。 此外, 由于复用段和通道段保护类型所要执行的倒换条件不同 (比如, 为复用段保护和通道段配置保护的时候, 当釆用光功率作为性能参数时, 要配 置的光功率阈值不同), 所以, 用于执行是否满足倒换条件的硬件装置也不同, 现有技术中的保护装置无法同时适用于复用段光网络保护和通道段光网络保 护; 另夕卜, 随着自动交换光网络 ( Automatic Switched Optical Network , 简称为 ASON ) 的出现, 其保护类型的运行机制和传统的保护类型亦不相同, 这样, 现有技术中的保护装置也无法同时保护传统的光网络和具有控制平面的自动 交换光网络。 发明内容 本发明的主要目的在于提供一种光网络的保护方法和装置, 以至少解决现 有技术中延长了保护倒换的时间的问题。 根据本发明的一个方面, 提供了一种光网络的保护方法, 其包括: 保护检 测模块将检测到的链路故障信息发送到与上述保护检测模块位于同一块单板 上的保护控制处理模块; 上述保护控制处理模块生成与上述链路故障信息对应 的保护执行命令, 并将上述保护执行命令发送给保护执行模块; 上述保护执行 模块将由上述链路故障信息指示的出现故障的链路上的业务倒换到由上述保 护执行命令指示的保护链路上。 上述保护执行模块与上述保护检测模块和上述保护控制处理模块位于上 述同一块单板上。 上述保护控制处理模块生成与上述链路故障信息对应的保护执行命令包 括: 上述保护控制处理模块从保护信息存储模块中获取与上述链路故障信息指 示的故障链路上 7 载的业务对应的业务类型和保护处理信息; 上述保护控制处 理模块根据上述业务类型和上述保护处理信息生成上述保护执行命令。 在保护检测模块将检测到的链路故障信息发送到与上述保护检测模块位 于同一块单板上的保护控制处理模块之前, 光网络的保护方法还包括: 在上述 保护信息存储模块中分别配置各种业务所对应的业务类型和保护处理信息。 上述业务类型包括以下之一: 永久性连接业务、 软永久性连接业务。 上述保护信息存储模块与上述保护检测模块和上述保护控制处理模块位 于上述同一块单板上。 根据本发明的另一方面, 提供了一种光网络的保护装置, 其包括: 保护执 行模块, 位于同一块单板上的保护检测模块和保护控制处理模块, 其中, 上述 保护检测模块设置为将检测到的链路故障信息发送到上述保护控制处理模块; 上述保护控制处理模块设置为生成与上述链路故障信息对应的保护执行命令, 并将上述保护执行命令发送给上述保护执行模块; 上述保护执行模块设置为将 由上述链路故障信息指示的出现故障的链路上的业务倒换到由上述保护执行 命令指示的保护链路上。 上述保护执行模块与上述保护检测模块和上述保护控制处理模块位于上 述同一单板上。 上述装置还包括: 保护信息存储模块, 设置为配置各种业务对应的业务类 型和保护处理信息, 其中, 上述保护控制处理模块还设置为从上述保护信息存 储模块中获取与上述链路故障信息指示的故障链路上承载的业务对应的业务 类型和保护处理信息, 并 居上述业务类型和上述保护处理信息生成上述保护 执行命令。 上述保护信息存储模块与上述保护检测模块和上述保护控制处理模块位 于上述同一块单板上。 通过本发明, 釆用将保护装置集成在一个单板上的方式, 解决了现有技术 中延长了保护倒换的时间的问题, 进而达到了缩短保护倒换时间的效果。 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 是才艮据本发明实施例的光网络的保护装置的结构框图; 图 2是 居本发明实施例的光网络的保护方法的一种优选流程图; 图 3是 居本发明实施例的光网络的保护方法的另一种优选流程图; 图 4是根据本发明实施例的网管模块所执行的步骤的优选流程图; 图 5 是根据本发明实施例的 ASON模块所执行的步骤的优选流程图; 图 6是 居本发明实施例的光网络的保护方法的另一种优选流程图; 图 7 是才艮据本发明实施例的保护方法的具体应用场景的示意图; 图 8 是才艮据本发明实施例的光网络的保护装置的优选结构框图。 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。 本实施例提供了一种光网络的保护装置, 如图 1所示, 将保护装置的检查 器, 控制器, 执行器集成到一块功能单板上 (也可集成到一块芯片上), 其中, 功能单板主要包括: 保护信息存储模块、 保护检测模块、 保护控制处理模块和 保护执行模块。 保护信息存储模块中具有两个寄存器 (包括: 寄存器 1和寄存 器 2 )。 其中, 寄存器 1主要存储建立 PC ( Permanent Connection, 永久性连接 ) 业务时的各种保护类型及有关保护类型的各种配置; 寄存器 2 主要存储建立 SPC ( Soft Permanent Connection, 软永久性连接) 业务时的各种业务保护类型 及相关的保护策略、 保护类型、 保护处理信息等。 保护控制处理模块中具有寄 存器 3和寄存器 4, 其中, 寄存器 3主要存储有关处理 PC业务时的保护处理 的执行判决条件; 寄存器 4主要存储有关 SPC业务的保护处理执行判决条件。 在保护检查模块检测到相关路径上的有关故障信息后, 就会将检测到的信 息通知给保护控制处理模块, 保护控制处理模块收到检测信息后, 就从保护信 息存储模块中读取有关业务建立时的保护信息、 该保护的相关倒换准则、 该保 护的相关策略信息等。 此外, 结合保护控制处理模块中的有关判决准则对上 4艮 过来的检测信息进行处理。 然后给保护执行模块下发相应的执行动作, 并将上 述的处理结果信息通过保护信息存储模块上报给 ASON模块或网管模块。保护 执行模块收到下发的执行命令后, 进行保护动作的执行, 并且将上述的执行结 果也通过保护信息存储模块上报给 ASON模块或网管模块。 为了更好的理解本发明, 这里将对上述模块所执行的功能分别进行描述:
1 ) 网管模块, 该模块用于在网管上建立 PC业务或 SPC业务时, 将业务 建立时的有关业务信息及所有的保护信息下发给相关的模块。 建立业务时, 如 果建立的是 PC业务, 则网管模块通过 S 1 口下发 S 1 口报文, 网管模块将有关 的保护信息下发给保护功能单板中的保护信息存储模块, 报文信息不经过 ASON模块。 具体地, 网管模块将有关的保护信息下发到保护信息存储模块中 的寄存器 1中; 如果在网管上建立的是 SPC业务, 则下发的报文信息首先通过 S2口下发给 ASON模块, 然后再由 ASON模块通过 S3 口将有关的 SPC业务 中有关保护方面的信息以及保护策略等信息下发给保护信息存储模块。 具体地 说, 是下发到保护信息存储模块中的寄存器 2中, 另外, 寄存器 2中还存储有 关 ASON的各种业务所对应的保护信息 (这些信息可以随 SPC业务的保护信 息一起下发, 也可以是在保护功能单板上电配置时, 由 ASON模块下发完成, 或通过其他方式来完成)。 优选的, 本网管模块具体的流程图如图 4所示。
2 ) ASON 模块, 该模块主要实现的是光网络控制平面的功能, 在网管上 建立 SPC业务时, 该模块通过 S2口接收网管下发的有关业务信息, 同时将上 述信息中的有关保护信息和 ASON的各种业务的保护策略信息、保护准则信息 等通过 S3 口下发给保护功能单板中的保护信息存储模块。 具体地说, 是下发 到保护信息存储模块中的寄存器 2 中。 本发明主要是将智能交换光网络 —ASON网络中的有关保护处理信息、 保护执行信息等交由保护功能单板中的 保护信息存储模块和保护信息处理模块等来完成。 优选的, 本 ASON模块的具 体流程图如图 5所示。
3 ) 保护检测模块, 该模块主要负责检测链路中工作线路及有关的保护线 路的有关告警信息、 告警类型等。 可以通过检测信号的帧结构或其他方法来确 定相关的告警信息。 本模块不但检测工作线路的链路情况同时也检测保护线路 的链路情况, 并将有关的告警信息通知给保护控制处理模块和保护信息存储模 块。
4 ) 保护控制处理模块, 该模块主要负责当收到保护检测模块上报过来的 告警信息及链路信息时, 根据建立的不同业务类型分别从寄存器 3或寄存器 4 中读取有关的保护处理准则 (比如, 设定某些阈值, 当工作路径上业务信号的 性能参数(光功率、 信噪比等)超过这些阈值, 并且保护路径正常时, 就进行 业务的倒换)和从保护信息存储模块的寄存器 1和寄存器 2中读取到的有关业 务类型及其对应的保护策略信息等, 向保护执行模块下发有关的命令。 在下发 命令的同时, 将有关的保护处理信息通知给保护信息存储模块。 优选的, 本保 护控制处理模块的具体流程图如图 6所示。 5 ) 保护执行模块, 该模块主要是当收到保护控制处理模块下发的保护执 行命令后, 进行保护命令的执行(比如: 一般的保护执行模块即是传统的光开 关, 但保护执行模块也可以是进行端口指配的器件模块等)。 当工作路径出现 故障, 保护路径正常时, 将业务切换到保护。 或者当工作路径故障消失时, 业 务流量再切换到原来的工作路径上去。 或者依据其它的保护策略或保护方法执 行相应的动作(比如线性的 M:N保护, 居不同的业务等级, 某条保护路径起 作用)。 6 ) 保护信息存储模块, 该模块主要存储有关 PC业务或 SPC业务关于保 护方面的所有应用信息(这些信息可以是在建立业务前由网管或 AS ON模块下 发到保护信息存储模块, 也可以是在建立业务的时候, 这些应用信息随同建立 业务时的保护信息一起下发到保护信息存储模块)。 在建立有关 PC或 SPC业 务时, 对于带有保护类型的各种业务, 这些业务的保护信息会通过不同的保护 报文信息下发给保护信息存储模块。 比如, 对于 PC业务而言, 有关业务的保 护信息 (比如, 保护组的配置参数, 业务信号性能参数的阈值, 保护倒换的倒 换条件等) 通过 S 1 口报文下发给保护信息存储模块和保护控制处理模块, 以 便在保护检测模块检测到告警时, 保护控制处理模块直接从保护信息存储模块 中的寄存器 1中读取有关的保护信息, 并且根据自身模块中寄存器 3中所存储 的倒换执行准则等下发有关的保护执行命令, 然后再将相关处理信息上报给网 管。 如果建立的业务是 SPC业务, 则网管界面上业务建立的信令会通过 S2口 下发给 ASON模块, 而 ASON模块会将业务的有关保护要求信息及各种 SPC 业务所对应的保护策略等信息通过 S3 口下发给保护功能单板的保护信息存储 模块和保护控制处理模块。 如果保护检测模块检测到工作路径上有故障, 则保 护控制处理模块直接从保护信息存储模块中寄存器 2处读取有关的业务类型及 对应的业务策略等信息, 然后自行处理, 勿需再交 ASON模块进行处理, 在向 保护执行模块下发处理的同时, 将此处理信息也通知给保护信息存储模块。 在 保护执行模块将执行结果也上报给保护信息存储模块后, 保护信息存储模块将 保护检测模块上报上来的链路告警等信息和保护处理模块上报过来的处理信 息, 以及保护执行模块所执行的结果信息封装成一个保护信息数据包, 上报给 网管模块或 ASON模块, 以便系统维护和信息查询之用。 下面将结合附图来描述图 1所示的保护装置所釆用的光网络的保护方法的 各种优选的实施例。 实施例 1 图 2是才艮据本发明实施例的光网络的保护方法的一种优选流程图,其包括:
S202, 保护检测模块将检测到的链路故障信息发送到与上述保护检测模块 位于同一块单板上的保护控制处理模块;
S204, 上述保护控制处理模块生成与上述链路故障信息对应的保护执行命 令, 并将上述保护执行命令发送给保护执行模块; S206, 上述保护执行模块将由上述链路故障信息指示的出现故障的链路上 的业务倒换到由上述保护执行命令指示的保护链路上。 在上述实施例中, 将保护装置集成在一个单板上的方式, 这样, 解决了现 有技术中延长了保护倒换的时间的问题, 进而达到了缩短保护倒换时间的效 果。 优选的, 所述保护执行模块与所述保护检测模块和所述保护控制处理模块 位于所述同一块单板上。 这样, 可以进一步缩短保护倒换时间。 实施例 2 图 3是 居本发明实施例的光网络的保护方法的另一种优选流程图, 其包 括:
S302, 保护检测模块将检测到的链路故障信息发送到与上述保护检测模块 位于同一块单板上的保护控制处理模块;
S304 , 保护控制处理模块从保护信息存储模块中获取与上述链路故障信息 指示的故障链路上承载的业务对应的业务类型和保护处理信息; 然后, 上述保 护控制处理模块根据上述业务类型和上述保护处理信息生成上述保护执行命 令, 并将上述保护执行命令发送给保护执行模块。
S306, 上述保护执行模块将由上述链路故障信息指示的出现故障的链路上 的业务倒换到由上述保护执行命令指示的保护链路上。 才艮据上述实施例, 保护控制处理模块可以对不同的类型的业务进行业务倒 换, 从而使得本实施例中的保护方法可以同时适用于不同的业务。 优选的, 所述业务类型包括以下之一: PC 业务、 SPC 业务。 在这种情况 下, 保护方法可以参照如图 6所示的流程。 优选的, 在保护检测模块将检测到的链路故障信息发送到与所述保护检测 模块位于同一块单板上的保护控制处理模块之前, 还包括: 在所述保护信息存 储模块中分别配置各种业务所对应的业务类型和保护处理信息。 与上述存储方法对应的是, 网管模块对业务的建立过程, 如图 4所示, 其 包括: S402, 网管界面上建立相关的业务;
S404, 判断该业务是否为 SPC业务; 若是, 则转至 S406; 若否, 则转至 S408;
S406, 网管建立的有关业务信息通过 S2口下发给 ASON模块; S408,网管模块将有关 PC业务的保护信息通过 S 1 口下发给保护信息存储 模块。 在实际操作中, 网管上建立各种业务, 各种业务都有对应的保护类型 (对 于没有保护类型的业务, 可以设置保护类型为空)。 对于 PC业务而言, 有关各 种保护类型的设置、 保护组的配置、 保护执行的判决准则等信息可以通过 S 1 口下发到保护功能单板的保护信息存储模块和保护控制处理模块中去, 上述信 息可以是在建立业务的时候下发, 也可以是单独下发写入到保护功能单板的保 护信息存储模块和保护控制处理模块(上述保护信息在首次建立业务的时候下 发一次, 如果以后没有变化, 则不需要再下发, 如果有变化只需将改变信息下 发即可)。 对于 SPC业务而言, 由于要有控制平面的参与, 所以, 网管上建立 的 SPC业务信息及有关的业务保护类型信息首先通过 S2口下发到 ASON模块 中, ASON模块将有关业务的保护信息通过 S3 口下发到保护功能单板中去。 同时, 也将有关 SPC各种业务等级的保护类型、 保护处理的准则、 保护策略、 保护执行的条件等信息通过 S3 口下发到保护信息存储模块中去。 同样, 这些 信息也可以是不在业务建立时下发, 而单独下发写入到保护功能单板的保护信 息存储模块中去(上述有关 SPC各种业务的保护信息实行首次下发原则, 如果 以后没有变化, 则不需再次下发, 直到保护信息有变化, 并且只下发变化的相 关信息)。 优选的, 所述保护信息存储模块与所述保护检测模块和所述保护控制处理 模块位于所述同一块单板上。 从而可以进一步缩短保护倒换时间。 下面结合附图和实施例, 对本发明的具体实施方式作进一步详细描述: 图 7是光网络中常见的线性通道段的保护方式, 不失一般性, 现对其釆用 本发明的情况进行说明。 保护功能单板 1和 2均包括如下硬件部分: 保护检测 模块、 保护控制处理模块、 保护执行模块、 保护信息存储模块等, 优选的, 还 可以包括网管模块和 ASON模块。 1 )假设建立的是 PC业务, 例如, 在本实施例中, 建立的是保护功能单板 1到保护功能单板 2之间带有保护的业务。 首先, 网管模块通过 S 1 口将关于 PC业务的各种保护类型的设置、 保护组 的配置、 保护执行的判决准则等信息下发到保护功能单板 1和保护功能单板 2 的保护信息存储模块和保护控制处理模块中, 然后进行业务的建立。 比如, 光 转发单元 1和光转发单元 3所对应的链路建立的是工作业务路径, 光转发单元 2和光转发单元 4所对应的链路建立的是保护业务路径。 在接收端可以釆用双 发优收或双发选收等方式进行业务的接收。 当光分波板 1的发送端和光转发单元 3的接收端之间的链路发生故障时, 保护功能单板 2中的保护检测模块会通过本单板的 R1_I1口收到一个正向告警 信息, 而保护功能单板 1会通过本单板的 R1_I1 口收到一个反向告警信息。 当 两端的保护功能单板中的信息检测模块检测到告警后, 会通知各自单板的保护 控制处理模块, 同时也会将此告警信息通知给保护信息存储模块(以组成后面 的保护信息数据包之用)。 然后, 保护控制处理模块从保护信息存储模块的寄 存器 1中读取有关的保护信息 (比如, 保护组 ID、 倒换类型、 等待恢复时间、 保护执行条件等)并根据自己模块中寄存器 3中所存储的有关保护执行条件和 相关准则 (比如, 发现光转发单元 1和光转发单元 3所对应的这条工作线路和 光转发单元 2和光转发单元 4所对应的保护线路是属于一个保护组, 工作线路 发生故障而保护线路正常, 且业务信号的性能参数值超过了原先设定的阈值) 等向本单板的保护执行模块发送保护执行命令, 让业务流量倒换到光转发单元 2和光转发单元 4所对应的这条保护线路上。 保护功能单板 1和保护功能单板 2中的保护执行模块收到保护控制处理模 块下发的保护执行命令后, 就进行业务流量线路的处理 (比如, 如果保护执行 模块为传统的光开关, 则将光开关倒换到保护线路上。 如果保护执行模块为波 长选择器件或其他模块, 则进行端口的指配和工作业务流量的切换动作)。 并 且将这些保护执行的结果通知给保护信息存储模块, 保护信息存储模块收到保 护执行模块上报的执行结果信息后, 会同原先的检测信息和保护控制处理信息 一起封装成保护信息数据包。 保护信息存储模块将保护信息数据包通过 S 1 口 上报给网管模块, 网管模块再将保护信息数据包中的相关信息用一定的方式显 示出来 (比如用图形或数据表格等方式)。
2 ) 如果建立的是 SPC业务, 则根据本实施例的光网络的保护方法包括如 下步骤: 首先在网管界面上发起业务建立的请求, 这些网管上业务建立的请求首先 通过 S2口下发给 ASON模块, 而 ASON模块根据自己的连接策略、路由策略、 保护策略等进行业务的建立。 如果业务是带有保护类型的业务, 比如, 建立的 业务是保护功能单板 1到保护功能单板 2之间的业务, 并且业务是带有保护属 性的。 ASON模块才艮据相关的策略, 比如计算的工作路径为光转发单元 1和光 转发单元 3所对应的这条链路, 保护路径是光转发单元 2和光转发单元 4所对 应的链路。 另外, 有关 ASON各种业务的保护类型、 保护策略、 保护执行的条 件等信息是通过 S3 口下发到保护功能单板的保护信息存储模块和保护控制处 理模块中的 (这些信息可以是在业务建立时随同业务的保护信息一起下发到保 护信息存储模块中去, 也可以是在业务建立前通过上点配置等方式进行)。 而 建立业务时的有关业务保护信息是在 ASON 模块收到网管下发的业务建立请 求信息后通过 S3口转发给保护功能单板的。 当光分波板 1的发送端和光转发单元 3的接收端之间的链路由于某种原因 发生故障时, 保护功能单板 2中的保护检测模块会通过 R1_I1 口收到一个正向 告警信息, 而保护功能单板 1也会通过本单板的 R1_I1 口收到一个反向告警信 息 (这些告警信息的检测方法可以用现有成熟的技术来实现)。 保护检测模块 将检测到的路径告警信息 (比如, 光转发单元 1和光转发单元 3所对应的这条 工作路径出现了故障, 而光转发单元 2和光转发单元 4所对应的保护路径是良 好的等)上报给保护功能单板的保护控制处理模块和保护信息存储模块, 保护 控制处理模块收到路径告警信息后, 首先去保护信息存储模块的寄存器 2中读 取此次业务的类型、 呼叫请求的相关保护信息 (比如, 网管现在发起的是保护 功能单板 1到保护功能单板 2的钻石级业务, 钻石级业务的保护类型是 1+1保 护类型等), 然后根据寄存器 4中存储的有关 ASON钻石级业务的保护策略、 保护准则、 保护执行条件等直接进行路径告警信息的处理, 并将处理信息同时 通知给保护信息存储模块和保护执行模块。 如果保护执行模块收到的处理信息 中包含执行命令, 则保护执行模块就进行相应的动作, 如果没有则不进行任何 动作。 现在, 保护功能单板中的保护控制处理模块收到工作链路故障告警后, 根据钻石级业务工作出现故障, 业务流量倒换到保护路径上等原则, 两端的保 护控制处理模块会向保护执行模块发送保护执行切换的命令, 使业务流量由光 转发单元 1和光转发单元 3所对应的路径上转换到光转发单元 2和光转发单元 4所对应的路径上去。 并且保护执行模块会将其所做的动作结果通知给保护信 息存储模块 (以备保护信息存储模块封装保护信息数据包之用)。 保护信息存储模块将保护检测模块上报的检测信息和保护控制处理模块 上报的控制处理信息, 以及保护执行模块上报的执行结果信息一起封装成保护 信息数据包。 然后, 通过 S3 口上报给 ASON模块, 以供 ASON模块做相应的 处理, ASON模块再将此信息上报给网管, 以便在网管上进行相应的信息查询。 釆用本发明所述的方法和装置, 与现有技术相比, 提高了保护装置的检测 器、控制器、执行器的集成化程度。 并且, 本发明通过检测业务信号的结构(比 如, 信号的帧结构等方法)或通过从保护信息存储模块中读取到的有关保护层 次信息等来确定是通道层的保护或者复用段层的保护, 即本发明同时适用于通 道段和复用段的光网络保护。 另外, 通过不同的报文格式, 本发明既可用于 PC 业务的保护也可适用于 SPC业务的保护类型。通过本发明提高了光网络保护装 置的处理时间, 减少了光网络保护装置的种类, 并且达到了 PC业务和 SPC业 务光网络保护装置的统一。 实施例 3 本发明还提供了一种光网络的保护装置的实施例, 其可以使用上述实施例 1-2所示的保护方法。 图 8 是才艮据本发明实施例的光网络的保护装置的优选结 构框图, 其包括: 保护执行模块 802 , 位于同一块单板上的保护检测模块 804 和保护控制处理模块 806。 优选的, 保护执行模块 802、 保护控制处理模块 806 以及保护检测模块 804依次连接。 其中, 保护检测模块 804设置为将检测到的链路故障信息发送到保护控制 处理模块 806; 保护控制处理模块 806设置为生成与所述链路故障信息对应的 保护执行命令, 并将该保护执行命令发送给保护执行模块 802 ; 保护执行模块 802设置为将由上述链路故障信息指示的出现故障的链路上的业务倒换到由上 述保护执行命令指示的保护链路上。 在上述实施例中, 将保护装置集成在一个单板上的方式, 这样, 解决了现 有技术中延长了保护倒换的时间的问题, 进而达到了缩短保护倒换时间的效 果。 优选的, 保护执行模块 802与保护检测模块 804和保护控制处理模块 806 位于同一单板上。 这样, 可以进一步缩短保护倒换时间。 优选的, 上述保护装置还可以包括保护信息存储模块 808 , 连接至保护控 制处理模块 806 , 设置为保存所配置的各种业务对应的业务类型和保护处理信 息。 在这种结构下, 保护控制处理模块 804可以从保护信息存储模块 808中获 取与上述链路故障信息指示的故障链路上 载的业务对应的业务类型和保护 处理信息, 并根据上述业务类型和上述保护处理信息生成所述保护执行命令。 根据本实施例, 保护控制处理模块可以对不同的类型的业务进行业务倒换, 从 而使得本实施例中的保护装置可以同时适用于不同的业务。 优选的, 保护信息存储模块 808与保护检测模块 804和保护控制处理模块 806位于同一块单板上。 这样, 可以进一步缩短保护倒换时间。 优选的, 上述业务类型包括以下之一: PC业务、 SPC业务。 从以上的描述中, 可以看出, 本发明克服现有技术中光网络保护装置各部 分集成度不是很高, 很大程度上延长了业务的保护倒换时间, 从而不仅可以进 一步缩短光网络的保护倒换处理时间, 而且可以同时适用于复用段光网络保护 和通道段光网络保护, 并可以兼容传统的光网络的保护和自动交换光网络的保 护。 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。

Claims

权 利 要 求 书
1. 一种光网络的保护方法, 其中, 包括:
保护检测模块将检测到的链路故障信息发送到与所述保护检测模块 位于同一块单板上的保护控制处理模块;
所述保护控制处理模块生成与所述链路故障信息对应的保护执行命 令, 并将所述保护执行命令发送给保护执行模块;
所述保护执行模块将由所述链路故障信息指示的出现故障的链路上 的业务倒换到由所述保护执行命令指示的保护链路上。
2. 根据权利要求 1所述的方法, 其中, 所述保护执行模块与所述保护检测 模块和所述保护控制处理模块位于所述同一块单板上。
3. 根据权利要求 1所述的方法, 其中, 所述保护控制处理模块生成与所述 链路故障信息对应的保护执行命令包括:
所述保护控制处理模块从保护信息存储模块中获取与所述链路故障 信息指示的故障链路上^载的业务对应的业务类型和保护处理信息; 所述保护控制处理模块 居所述业务类型和所述保护处理信息生成 所述保护执行命令。
4. 根据权利要求 3所述的方法, 其中, 在保护检测模块将检测到的链路故 障信息发送到与所述保护检测模块位于同一块单板上的保护控制处理模 块之前, 还包括:
在所述保护信息存储模块中分别配置各种业务所对应的业务类型和 保护处理信息。
5. 根据权利要求 3或 4所述的方法, 其中, 所述业务类型包括以下之一: 永久性连接业务、 软永久性连接业务。
6. 根据权利要求 3或 4所述的方法, 其中, 所述保护信息存储模块与所述 保护检测模块和所述保护控制处理模块位于所述同一块单板上。
7. —种光网络的保护装置, 包括: 保护执行模块, 位于同一块单板上的保 护检测模块和保护控制处理模块, 其中, 所述保护检测模块设置为将检测到的链路故障信息发送到所述保护 控制处理模块;
所述保护控制处理模块设置为生成与所述链路故障信息对应的保护 执行命令, 并将所述保护执行命令发送给所述保护执行模块;
所述保护执行模块设置为将由所述链路故障信息指示的出现故障的 链路上的业务倒换到由所述保护执行命令指示的保护链路上。
8. 根据权利要求 7所述的装置, 其中, 所述保护执行模块与所述保护检测 模块和所述保护控制处理模块位于所述同一单板上。
9. 根据权利要求 7所述的装置, 其中, 还包括: 保护信息存储模块, 设置 为保存所配置的各种业务对应的业务类型和保护处理信息, 其中, 所述保护控制处理模块还设置为从所述保护信息存储模块中获取与 所述链路故障信息指示的故障链路上 载的业务对应的业务类型和保护 处理信息, 并 居所述业务类型和所述保护处理信息生成所述保护执行 命令。
10. 根据权利要求 9所述的装置, 其中, 所述保护信息存储模块与所述保护 检测模块和所述保护控制处理模块位于所述同一块单板上。
PCT/CN2011/073819 2010-09-27 2011-05-09 光网络的保护方法和装置 WO2012041061A1 (zh)

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