WO2018171209A1 - 一种在光传送网中实现广播业务保护的装置及方法 - Google Patents

一种在光传送网中实现广播业务保护的装置及方法 Download PDF

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Publication number
WO2018171209A1
WO2018171209A1 PCT/CN2017/109847 CN2017109847W WO2018171209A1 WO 2018171209 A1 WO2018171209 A1 WO 2018171209A1 CN 2017109847 W CN2017109847 W CN 2017109847W WO 2018171209 A1 WO2018171209 A1 WO 2018171209A1
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Prior art keywords
protection
service
ring
configuration
multicast
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English (en)
French (fr)
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王雅琴
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Fiberhome Telecommunication Technologies Co Ltd
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Fiberhome Telecommunication Technologies Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Definitions

  • the present invention relates to the field of optical transmission communication technologies, and in particular to an apparatus and method for implementing broadcast service protection in an optical transport network.
  • the optical transmission network transmission equipment of the prior art generally adopts OCP (Optical Channel Protection), OLP (Optical Line Protection), or WSS (Wavelength selective switch).
  • the switch or the like can be used for protection or broadcast, but only protection or broadcast can be implemented separately, and the cost of the device needs to be increased in the specific implementation, and the networking cost is too high.
  • 1+1 protection of ODUK (Optical Channel Data Unit) based on SNCP (SubNetwork Connection Protection) in the transmission device cannot exceed two or more services. Selection, that is, the protection of broadcasting.
  • the object of the present invention is to overcome the deficiencies of the above background art, and to provide an apparatus and method for implementing broadcast service protection in an optical transport network, which can realize various optical transport network networking types without adding any equipment unit.
  • the protection of the broadcast service saves the networking cost of the optical transport network, enhances the robustness of the network, and makes the network protection more flexible.
  • the present invention provides an apparatus for implementing broadcast service protection in an optical transport network, the apparatus comprising a control unit, a protection switching processing unit, and a plurality of service boards communicating with the control unit and the protection switching processing unit.
  • Several service boards form optical transmission networks of different networking types. among them:
  • the control unit is configured to: deliver a multicast service configuration and a multicast protection configuration to each service card; and send a multicast protection configuration to the protection switching processing unit;
  • the protection switching processing unit is configured to: after receiving the multicast protection configuration delivered by the control unit, complete the corresponding multicast protection configuration; and perform real-time judgment on the actual situation of the working and protection channel service signals to each service board.
  • the card sends a protection switch, clears the switch or maintains the command;
  • the service board is configured to: after receiving the configuration of the multicast service delivered by the control unit, complete the corresponding service configuration; after receiving the multicast protection configuration delivered by the control unit, complete the corresponding multicast protection configuration; Confirm the protection switching and clearing sent by the protection switching processing unit. After the command is changed or maintained, the corresponding protection action is performed.
  • the present invention also provides a method for implementing broadcast service protection in an optical transport network based on the above apparatus, comprising the following steps:
  • the control unit delivers the multicast service configuration to each service card, and each service board completes the corresponding service configuration.
  • the control unit sends a multicast protection configuration to each service card, and each service board completes the corresponding multicast protection configuration.
  • the control unit sends a multicast protection configuration to the protection switching processing unit, and the protection switching processing unit completes the corresponding multicast protection configuration.
  • the protection switching processing unit performs a real-time judgment on the actual situation of the working and protection channel service signals, and sends a protection switching, clear switching or maintaining command to each service board;
  • each service board After receiving and confirming the corresponding command, each service board performs a corresponding protection action.
  • the present invention can not only realize ring type or chain type networking application, but also select and receive broadcast signals from different directions and protect the service without adding any equipment unit (equipment cost).
  • equipment cost In the networking of the tangent ring, the intersecting ring and the mesh network, one of the plurality of received signals can be selected and transmitted downstream at the tangent point to realize protection between the ring networks, thereby saving the optical transport network.
  • the networking cost enhances network robustness and makes networking protection more flexible.
  • FIG. 1 is a schematic view showing a typical two-ring tangent ring optical transmission network networking structure
  • FIG. 2 is a structural block diagram of an apparatus for implementing broadcast service protection in an optical transport network according to an embodiment of the present invention
  • FIG. 3 is a method for implementing broadcast service protection in an optical transport network according to an embodiment of the present invention.
  • the present invention is a technical solution applied to an optical transport network.
  • the networking type of the optical transport network is generally a ring type or a chain type network. More complicated ones include a tangent ring, an intersecting ring, and a mesh network type. For example, a typical two-ring tangent ring network structure. As shown in Figure 1.
  • the main purpose of the present invention is to enable not only ring-type or chain-type networking applications, but also to select broadcast signals from different directions and protect services, without adding any equipment units, but also in tangent rings and intersecting rings.
  • the networking of the mesh network one of the received signals is selected and transmitted downstream at the tangent point to achieve protection between the ring networks. That is to say, the present invention can realize the broadcast service protection of various optical transport network networking types without adding any equipment unit, save the networking cost of the optical transport network, enhance the network robustness, and make the network protection more. flexibility.
  • an embodiment of the present invention provides an apparatus for implementing broadcast service protection in an optical transport network, where the apparatus includes a control unit, a protection switching processing unit, and a control unit and a protection switching process.
  • the control unit is configured to: deliver a multicast service configuration and a multicast protection configuration to each service card; and send a multicast protection configuration to the protection switching processing unit.
  • the protection switching processing unit is configured to: after receiving the multicast protection configuration delivered by the control unit, complete the corresponding multicast protection configuration; and perform real-time judgment on the actual situation of the working and protection channel service signals, and send to each service board Protects the switch, clears the switch, or maintains the command.
  • the service card is used to: after receiving the multicast service configuration delivered by the control unit, complete the corresponding Service configuration; after receiving the multicast protection configuration delivered by the control unit, complete the corresponding multicast protection configuration; after receiving and confirming the protection switching, clear switching or maintaining commands sent by the protection switching processing unit, perform the corresponding protection action. Ensure the stable operation of the business.
  • the service board may be a board with separate lines (ie, a branch board, a service board with a separate circuit board card), or a branch line. Board (that is, the business board of the branch board and circuit board card).
  • the service board includes a branch board and a circuit board card.
  • an embodiment of the present invention further provides a method for implementing broadcast service protection in an optical transport network based on the foregoing apparatus, including the following steps:
  • Step S1 The control unit delivers the multicast service configuration to each service card, and each service card completes the corresponding service configuration, and the process proceeds to step S2.
  • step S1 the specific process for completing the corresponding service configuration of each service card is as follows:
  • Step S101 each circuit board multicasts the service to all the branches and lines of the service of the card;
  • Step S102 If it is a tangent ring, an intersecting ring or a mesh network, each circuit board multicasts the service to other ring corresponding to the tangent node on the other circuit board corresponding to the tangent service of the node. It can be understood that the corresponding other circuit boards can be one or more.
  • the circuit board card can receive services from the circuit board card 3 in addition to receiving services from the circuit board cards 2 and 4.
  • the circuit board 2 can also receive services from the circuit board card 4; in addition to receiving services from the circuit boards 2 and 4, the circuit board 3 can also The service is received from the circuit board card 1.
  • the circuit board card 4 can also receive services from the circuit board card 2. Then on this basis
  • the specific operations of each service board in Figure 1 to complete the corresponding service configuration are as follows:
  • Circuit board 1 Multicast the service to branch 1, branch 2, circuit board 2, circuit board 3, circuit board 4;
  • Circuit board 2 multicasting services to branch 1, branch 2, circuit board 1, circuit board 3, circuit board 4;
  • Circuit board 3 multicasting services to branch 3, branch 4, circuit board 1, circuit board 3, circuit board 4;
  • the circuit board 4 multicasts the service to the branch 3, the branch 4, the circuit board 2, the circuit board 3, and the circuit board 4; after completing the corresponding configuration, the process proceeds to step S2.
  • Step S2 The control unit sends a multicast protection configuration to each service card, and each service card completes the corresponding multicast protection configuration, and the process proceeds to step S3.
  • step S2 the specific process of completing the corresponding multicast protection configuration of each service card is as follows:
  • Step S201 Each circuit board is defined as a working or protection mode of the ring in accordance with the needs of the user, and is numbered separately; it can be understood that the number of each working and protection mode of each ring is different.
  • Step S202 numbering each tributary board card with the working and protection establishment of the local ring; it can be understood that the channel numbers established by the working or protection mode corresponding to the same ring are consistent, and the work or protection corresponding to different rings The channel numbers established by the mode are inconsistent.
  • Circuit board 1 defined as the north ring work, the line card 1 is numbered 1 after receiving it;
  • Circuit board 2 defined as the north ring protection, after the line card 2 is received, it is numbered 2;
  • Circuit board 3 defined as the south ring work, after the line card 3 is received, it is numbered 3;
  • Circuit board 4 defined as the south ring protection, after the line card 4 is received, it is numbered 4;
  • the tributary board 1 the channel connected to the work of the north ring is defined as channel 1, and the channel connected to the protection of the north ring is defined as channel 2;
  • Branch circuit board 2 The channel connected to the work of the north ring is defined as channel 1, and the channel connected to the protection of the north ring is defined as channel 2;
  • Branch board 3 The channel connected to the working of the south ring is defined as channel 3, and the channel connected to the protection of the south ring is defined as channel 4;
  • the branch board 4 The channel connected to the south ring is defined as channel 3, and the channel connected to the south ring protection is defined as channel 4. After the corresponding configuration is completed, the process proceeds to step S3.
  • Step S3 The control unit sends a multicast protection configuration to the protection switching processing unit, and the protection switching processing unit completes the corresponding multicast protection configuration, and proceeds to step S4.
  • the step S3 includes the following process: the control unit sends the work of each ring, the protection mode number, and all the tributary card number configurations involved to the protection switching processing unit, and the protection switching processing unit completes the corresponding multicast.
  • Protect the configuration For example, the work of each ring, the protection mode number, and all the branch board numbers involved are configured as: North Ring Work (1), North Ring Protection (2), South Ring Work (3), South Ring Protection (4), The tributary board 1, the tributary board 2, the tributary board 3, and the tributary board 4; after the protection switching processing unit receives the above configuration sent by the control unit, the corresponding multicast protection configuration is completed, and the corresponding configuration is completed. Go to step S4.
  • Step S4 The protection switching processing unit performs real-time judgment on the actual situation of the service and protection channel service signals, and sends a protection switching, clear switching or maintenance command to each service board, and proceeds to step S4.
  • step S4 includes the following processes:
  • Step S401 For the tributary board, the protection switching processing unit monitors the alarm of the ring working and protection of the tributary board (the alarm refers to the alarm and signal degradation that triggers the protection switching condition), and if there is no alarm, the All branch boards corresponding to the ring service are simultaneously Sending the clear switch command to switch the service to the working channel of the ring; if the ring works with an alarm, send a protection switching command to all the tributary cards corresponding to the ring service, and switch the service to the ring protection channel; If the ring protection has an alarm, if the service is in the working state, the maintenance command is sent and remains unchanged. If the service is in the protection state, the protection switching command is sent to switch to the working state; if the ring works and the protection has an alarm, The maintenance command is sent and the service is maintained in the previous state.
  • the alarm refers to the alarm and signal degradation that triggers the protection switching condition
  • the command transmission for the tributary board can be as follows:
  • the tributary board 1/2 is selected: the protection switching processing unit detects the alarms of the north ring work and the north ring protection. If there is no alarm, send the clear switch command to the tributary boards 1 and 2 simultaneously, and switch the service to the north. On the ring, the corresponding number is channel 1. If there is an alarm in the north ring, send a protection switching command to the tributary boards 1 and 2, and switch the service to the north ring protection. The corresponding number is channel 2. If there is an alarm in the protection of the north ring, if the service is in the working state, the maintenance command is sent and remains unchanged. If the service is in the protection state, the protection switching command is sent to switch to the working state; if the north ring works and the north ring protection If there is an alarm, the maintenance command is sent and the service maintains the previous state.
  • the tributary board 3/4 is selected: the protection switching processing unit detects the alarms of the south ring work and the south ring protection. If there is no alarm, send the clear switch command to the tributary boards 3 and 4 simultaneously, and switch the service to the south ring work.
  • the corresponding number is channel 3; if there is an alarm in the south ring, send a protection switching command to the tributary boards 3 and 4 at the same time, and switch the service to the south ring protection.
  • the corresponding number is channel 4; if the south ring protection has If the service is in the working state, the maintenance command is sent and remains unchanged. If the service is in the protection state, the protection switching command is sent to switch to the working state. If the south ring working and the south ring protection have alarms, the maintenance command is sent. Maintain the last state.
  • Step S402 For the circuit board, the protection switching processing unit monitors whether other circuit boards of the service corresponding to the tangent point have an alarm;
  • the protection switching command is sent to preferentially select the corresponding service of other circuit boards on the ring; it can be understood that, in general, which other circuit board card service on the ring is selected, the user can If the user does not select, the protection switching unit may determine, by which other circuit board card to receive the service, send a protection switching command to the circuit board card, where the protection switching command includes the circuit board number to be selected. ;
  • the protection switching command is sent to select the services of the circuit cards that are not alarmed by the other ring services. It is understood that, in other cases, the other ring is selected without alarm.
  • the circuit board card receiving service can be set and selected by the user; if the user does not select, the protection switching unit can determine the slave card receiving service from which the alarm is not received, and then send a protection switching command to the circuit board card, the protection The switch command contains the number of the circuit board card to be selected.
  • the maintenance command is sent, and the services of other circuit boards under this ring are still received. It is also understandable to select which one under this ring.
  • Other circuit board card receiving services can be set by the user; if the user does not select, the protection switching unit can determine which other circuit board card to receive the service from, and then send a protection switching command to the circuit board card, the protection switching command It contains the number of the circuit board card that needs to be selected.
  • command transmission for the circuit board can be as follows:
  • the circuit board card 1 is selected: if the circuit board card 2 has no alarm, it is selected from the circuit board card 2, otherwise if the circuit board card 4 has no alarm, it is selected from the circuit board card 4, otherwise if the circuit board card 3 has no alarm Then, it is selected from the circuit board card 3. When the above conditions are not satisfied, the last state is maintained. After the protection switching unit determines which circuit board card to receive the service from, the protection switching command is sent to the circuit board card 1, and the protection switching command includes the selection Received circuit board number;
  • the circuit board card 2 is selected: if the circuit board card 1 has no alarm, it is selected from the circuit board card 1, otherwise if the circuit board card 3 has no alarm, it is selected from the circuit board card 3, otherwise if the circuit board card 4 has no alarm Then, it is selected from the circuit board card 4. When the above conditions are not satisfied, the last state is maintained. After the protection switching unit determines which circuit board card to receive the service from, the protection switching command is sent to the circuit board card 2, and the protection switching command includes the circuit board number to be selected.
  • the circuit board card 3 is selected: if the circuit board card 4 has no alarm, it is selected from the circuit board card 4, otherwise if the circuit board card 2 has no alarm, it is selected from the circuit board card 2, otherwise if the circuit board card 1 has no alarm Then, it is selected from the circuit board card 1. When the above conditions are not satisfied, the last state is maintained. After the protection switching unit determines which circuit board card to receive the service from, the protection switching command is sent to the circuit board card 3, and the protection switching command includes the circuit board number to be selected.
  • the circuit board card 4 is selected: if the circuit board card 3 has no alarm, it is selected from the circuit board card 3. Otherwise, if the circuit board card 1 has no alarm, it is selected from the circuit board card 1, otherwise if the circuit board card 2 has no alarm Then, it is selected from the circuit board card 2, and when the above conditions are not satisfied, the last state is maintained.
  • the protection switching unit determines which circuit board card to receive the service from, the protection switching command is sent to the circuit board card 4, and the protection switching command includes the circuit board number to be selected.
  • Step S5 After receiving and confirming the corresponding command, each service board performs a corresponding protection action to ensure stable operation of the service.
  • step S4 the protection switching processing unit performs real-time judgment on the actual situation of the service and protection channel service signals, and sends an operation of protecting switching, clearing switching, or maintaining commands to each service card. That is, as long as the steps S1 to S3 are completed, once the conditions corresponding to the triggering protection switching, such as alarms or signal degradation, occur on the corresponding service on the live network, Step S4 and subsequent step S5 are triggered. When the service signal is stable, or the configuration of steps S1 to S3 is canceled, steps S4 and S5 are not triggered in real time.

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Abstract

本发明公开了一种在光传送网中实现广播业务保护的装置及方法，涉及光传送通信领域。该装置的控制单元，用于向各业务板卡下发多播业务配置和多播保护配置，并向保护倒换处理单元下发多播保护配置。保护倒换处理单元，收到多播保护配置后完成对应的多播保护配置；并通过对工作及保护通道业务信号的实时判断，向各业务板卡发送倒换、清除倒换或维持的命令。各业务板卡，收到多播业务配置、多播保护配置后，完成对应业务配置、保护配置；并在收到保护倒换处理单元发送的命令后，执行对应保护动作。本发明能在不增加设备成本的情况下实现各种光传送网组网类型的广播业务保护，节省了光传送网的组网成本，增强了网络健壮性，使组网保护更具灵活性。

Description

一种在光传送网中实现广播业务保护的装置及方法 技术领域
本发明涉及光传送通信技术领域，具体来讲是一种在光传送网中实现广播业务保护的装置及方法。
背景技术
随着高速互联网、互动电视、3D高清视频、云计算、云存储、物联网等宽带应用的不断涌现，促使传输网络从骨干到城域网络带宽需求成倍增长。在网络高速发展的时代，100G WDM(Wavelength Division Multiplexing，波分复用)/OTN(OpticalTransportNetwork，光传送网)大容量传输网络建设将是广电缓解带宽压力的最佳手段。随着固定接入宽带用户的持续普及和高清视频业务的规模部署以及各种宽带应用的大量涌现，骨干传送网带宽需求将持续快速增长。传送网核心技术的成熟、网络管理的突出优势、系统后期的便捷维护都会让光传送网络建设成为广电骨干网络建设的必然趋势。在广电系统中布局100G光传送网的干线网络时机已越来越成熟。另外，如在各省广电传输网络中构建一张100G光传送网的省干平面，可实现大管道的精细运营，确保全省网络的安全可靠、进行多业务的高效承载尤其是安全播控更是广电网络非常重视的保障任务。因此，一种高效安全低成本的在光传送网广播业务及保护方式将是广电网络的最佳选择。
而目前，现有技术的光传送网络传输设备中，一般采用OCP(Optical Channel Protection，光通道保护)、OLP(Optical Line Protection，光线路保护)或WSS(Wavelength selective switch，波长 选择开关)等进行保护或广播，但都只能单独实现保护或广播，且具体实现中均需要增加设备成本，组网成本过高。除此之外，对于传输设备中基于SNCP(SubNetwork Connection Protection，子网连接保护)的ODUK(Optical channel Data Unit，光通道数据单元)1+1保护又无法做到超过两个及以上的业务的选收，即广播的保护。
因此，如何在低组网成本要求下实现光传送网的广播业务保护是本领域技术人员亟待解决的问题。
发明内容
本发明的目的是为了克服上述背景技术的不足，提供一种在光传送网中实现广播业务保护的装置及方法，能在不增加任何设备单元的情况下实现各种光传送网组网类型的广播业务保护，节省了光传送网的组网成本，增强了网络健壮性，使组网保护更具灵活性。
为达到以上目的，本发明提供一种在光传送网中实现广播业务保护的装置，该装置包括控制单元、保护倒换处理单元，以及与控制单元、保护倒换处理单元进行通信的若干个业务板卡，若干个业务板卡组成各种不同组网类型的光传送网。其中：
所述控制单元用于：向各个业务板卡下发多播业务配置和多播保护配置；向保护倒换处理单元下发多播保护配置；
所述保护倒换处理单元用于：收到控制单元下发的多播保护配置后，完成对应的多播保护配置；并通过对工作及保护通道业务信号的实际情况进行实时判断，向各个业务板卡发送保护倒换、清除倒换或维持的命令；
所述业务板卡用于：收到控制单元下发的多播业务配置后，完成对应业务配置；收到控制单元下发的多播保护配置后，完成对应的多播保护配置；收到并确认保护倒换处理单元发送的保护倒换、清除倒 换或维持的命令后，执行对应保护动作。
本发明还提供一种基于上述装置的在光传送网中实现广播业务保护的方法，包括以下步骤：
S1、控制单元向各个业务板卡下发多播业务配置，各个业务板卡完成对应业务配置；
S2、控制单元向各个业务板卡下发多播保护配置，各个业务板卡完成对应的多播保护配置；
S3、控制单元向保护倒换处理单元下发多播保护配置，保护倒换处理单元完成对应的多播保护配置；
S4、保护倒换处理单元通过对工作及保护通道业务信号的实际情况进行实时判断，向各个业务板卡发送保护倒换、清除倒换或维持的命令；
S5、各个业务板卡收到并确认对应命令后，执行对应保护动作。
本发明的有益效果在于：
与现有技术相比，本发明可在不增加任何设备单元(设备成本)的情况下，不仅可以实现环型或链型组网应用，从不同方向选收广播信号并对业务进行保护，更可以在相切环、相交环和网状网的组网中，在相切点从多个收到的信号中选择一路输出和向下游传送，实现环网之间的保护，节省了光传送网的组网成本，增强了网络健壮性，使组网保护更具灵活性。
附图说明
图1为典型的两环相切环的光传送网组网结构的示意图；
图2为本发明实施例中在光传送网中实现广播业务保护的装置的结构框图；
图3为本发明实施例中在光传送网中实现广播业务保护的方法 的流程图。
具体实施方式
下面结合附图及具体实施例对本发明作进一步的详细描述。
本发明是一种应用于光传送网的技术方案。目前，光传送网的组网类型一般为环型或链型组网，更复杂的则包括相切环、相交环和网状网组网类型，例如，典型的两环相切环组网结构如图1所示。而本发明的主要目的是在不增加任何设备单元的情况下不仅可以实现环型或链型组网应用，从不同方向选收广播信号并对业务进行保护，更可以在相切环、相交环和网状网的组网中，在相切点从多个收到的信号中选择一路输出和向下游传送，实现环网之间的保护。也就是说，本发明能在不增加任何设备单元的情况下实现各种光传送网组网类型的广播业务保护，节省光传送网的组网成本，增强网络健壮性，使组网保护更具灵活性。
为了实现上述发明目的，参见图2所示，本发明实施例提供一种在光传送网中实现广播业务保护的装置，该装置包括控制单元、保护倒换处理单元，以及与控制单元、保护倒换处理单元进行通信的若干个业务板卡，所述若干个业务板卡可组成各种不同组网类型的光传送网，包括环型、链型、相切环、相交环或网状网类型的光传送网。
其中，控制单元用于：向各个业务板卡下发多播业务配置和多播保护配置；向保护倒换处理单元下发多播保护配置。
保护倒换处理单元用于：收到控制单元下发的多播保护配置后，完成对应的多播保护配置；并通过对工作及保护通道业务信号的实际情况进行实时判断，向各个业务板卡发送保护倒换、清除倒换或维持的命令。
业务板卡用于：收到控制单元下发的多播业务配置后，完成对应 业务配置；收到控制单元下发的多播保护配置后，完成对应的多播保护配置；收到并确认保护倒换处理单元发送的保护倒换、清除倒换或维持的命令后，执行对应保护动作，保障业务稳定运行。可以理解的是，如图1中所示，所述业务板卡可以是支线路分离的板卡(即支路板卡、线路板卡分离的业务板卡)，也可以是支线路合一的板卡(即支路板卡、线路板卡合一的业务板卡)。换句话说，所述业务板卡包括支路板卡和线路板卡。
参见图3所示，本发明实施例还提供一种基于上述装置的在光传送网中实现广播业务保护的方法，包括以下步骤：
步骤S1：控制单元向各个业务板卡下发多播业务配置，各个业务板卡完成对应业务配置，转入步骤S2。
具体来说，步骤S1中，各个业务板卡完成对应业务配置的具体流程如下：
步骤S101：各个线路板卡将业务多播到本板卡该业务所具有的所有支路和线路上；
步骤S102：若为相切环、相交环或网状网，则各个线路板卡还将业务多播到所在相切节点对应的其他环在这个节点相切业务对应的其他线路板卡上。可以理解的是，对应的其他线路板卡可以是一个也可以是多个。
以图1所示为例，两个相切环定义为南环和北环；其中：线路板卡1除了可以从线路板卡2和4上收业务外，还可以从线路板卡3上收业务；线路板卡2除了可以从线路板卡1和3上收业务外，还可以从线路板卡4上收业务；线路板卡3除了可以从线路板卡2和4上收业务外，还可以从线路板卡1上收业务；线路板卡4除了可以从线路板卡1和3上收业务外，还可以从线路板卡2上收业务。则在此基础 上，图1中各个业务板卡完成对应业务配置的具体操作为：
线路板卡1：将业务多播到支路1、支路2、线路板卡2、线路板卡3、线路板卡4；
线路板卡2：将业务多播到支路1、支路2、线路板卡1、线路板卡3、线路板卡4；
线路板卡3：将业务多播到支路3、支路4、线路板卡1、线路板卡3、线路板卡4；
线路板卡4：将业务多播到支路3、支路4、线路板卡2、线路板卡3、线路板卡4；完成相应配置后，转入步骤S2。
步骤S2：控制单元向各个业务板卡下发多播保护配置，各个业务板卡完成对应的多播保护配置，转入步骤S3。
具体来说，步骤S2中，各个业务板卡完成对应的多播保护配置的具体流程如下：
步骤S201：各个线路板卡根据用户需要分别定义为所在环的工作或保护模式，并分别给自己进行编号；可以理解的是，每个环的每个工作、保护模式的编号都不一样。
步骤S202：将每个支路板卡与本环的工作、保护建立的通道进行编号；可以理解的是，相同环对应的工作或保护模式所建立的通道编号一致，不同环对应的工作或保护模式所建立的通道编号不一致。
还是以图1所示为例，图1中各个业务板卡完成对应的多播保护配置的具体操作为：
线路板卡1：定义为北环工作，线路卡1收到后给自己编号为1；
线路板卡2：定义为北环保护，线路卡2收到后给自己编号为2；
线路板卡3：定义为南环工作，线路卡3收到后给自己编号为3；
线路板卡4：定义为南环保护，线路卡4收到后给自己编号为4；
支路板卡1：与北环工作相连的通道定义为1号通道，与北环保护相连的通道定义为2号通道；
支路板卡2：与北环工作相连的通道定义为1号通道，与北环保护相连的通道定义为2号通道；
支路板卡3：与南环工作相连的通道定义为3号通道，与南环保护相连的通道定义为4号通道；
支路板卡4：与南环工作相连的通道定义为3号通道，与南环保护相连的通道定义为4号通道；完成相应配置后，转入步骤S3。
步骤S3：控制单元向保护倒换处理单元下发多播保护配置，保护倒换处理单元完成对应的多播保护配置，转入步骤S4。
具体来说，步骤S3包括以下流程：控制单元将每个环的工作、保护模式编号，以及涉及的所有支路板卡编号配置下发给保护倒换处理单元，保护倒换处理单元完成对应的多播保护配置。例如，每个环的工作、保护模式编号，以及涉及的所有支路板卡编号配置为：北环工作(1)，北环保护(2)，南环工作(3)，南环保护(4)，支路板1，支路板2，支路板3，支路板4；则保护倒换处理单元收到控制单元发来的上述配置后，将完成上述对应的多播保护配置，完成相应配置后，转入步骤S4。
步骤S4：保护倒换处理单元通过对工作及保护通道业务信号的实际情况进行实时判断，向各个业务板卡发送保护倒换、清除倒换或维持等命令，转入步骤S4。
具体来说，步骤S4包括以下流程：
步骤S401：对于支路板卡，保护倒换处理单元监测支路板卡所在环工作和保护的告警(所述告警是指触发保护倒换条件的告警和信号劣化)，如果都没有告警，则向该环业务对应的所有支路板卡同时 发送清除倒换命令，将业务倒换到该环工作通道上；如果该环工作有告警，则向该环业务对应的所有支路板卡同时发送保护倒换命令，将业务倒换到该环保护通道上；如果该环保护有告警，若业务在工作状态，则发送维持命令，保持不变，若业务在保护状态，则发送保护倒换命令，切换到工作状态；如果该环工作和保护都有告警，则发送维持命令，业务维持上一次的状态。
还是以图1所示为例，对于支路板卡的命令发送可如下操作：
支路板卡1/2选收：保护倒换处理单元检测北环工作和北环保护的告警，如果都没有告警，则向支路板卡1和2同时发送清除倒换命令，将业务倒换到北环工作上，对应的编号为1号通道；如果北环工作有告警，则向支路板卡1和2同时发送保护倒换命令，将业务倒换到北环保护上，对应的编号为2号通道；如果北环环保护有告警，若业务在工作状态，则发送维持命令，保持不变，若业务在保护状态，则发送保护倒换命令，切换到工作状态；如果北环工作和北环保护都有告警，则发送维持命令，业务维持上一次的状态。
支路板卡3/4选收：保护倒换处理单元检测南环工作和南环保护的告警，如果都没有告警，则向支路板卡3和4同时发送清除倒换命令，将业务倒换到南环工作上，对应的编号为3号通道；如果南环工作有告警，则向支路板卡3和4同时发送保护倒换命令，将业务倒换到南环保护上，对应的编号为4号通道；如果南环保护有告警，若业务在工作状态，则发送维持命令，保持不变，若业务在保护状态，则发送保护倒换命令，切换到工作状态；如果南环工作和南环保护都有告警，则发送维持命令，业务维持上一次的状态。
步骤S402：对于线路板卡，保护倒换处理单元监测相切点对应业务的其他线路板卡是否有告警；
如果都有告警，则发送维持命令，选收业务保持上一次状态；
如果都没有告警，则发送保护倒换命令，优先选收本环上其他线路板卡的对应业务；可以理解的是，通常情况下，具体选择本环上哪个其他线路板卡收业务，可由用户自行设置选择；若用户没有选择，则可由保护倒换单元判断出该从哪个其他线路板卡收业务后，向该线路板卡发送保护倒换命令，该保护倒换命令中包含需要选收的线路板卡编号；
如果本环的其他线路板卡业务有告警，则发送保护倒换命令，选收来自其他环对应业务无告警的线路板卡的业务；可以理解的是，通常情况下，具体选择其他环哪个无告警的线路板卡收业务，可由用户自行设置选择；若用户没有选择，则可由保护倒换单元判断出该从哪个无告警的线路板卡收业务后，向该线路板卡发送保护倒换命令，该保护倒换命令中包含需要选收的线路板卡编号；
如果本环的其他线路板卡业务没有告警，而其他环的有告警，则发送维持命令，依然保持接收本环下的其他线路板卡的业务；同样可以理解的是，具体选择本环下哪个其他线路板卡收业务，可由用户自行设置选择；若用户没有选择，则可由保护倒换单元判断出该从哪个其他线路板卡收业务后，向该线路板卡发送保护倒换命令，该保护倒换命令中包含需要选收的线路板卡编号。
还是以图1所示为例，对于线路板卡的命令发送可如下操作：
线路板卡1选收：如果线路板卡2没有告警，则从线路板卡2选收，否则如果线路板卡4没有告警，则从线路板卡4选收，否则如果线路板卡3没有告警，则从线路板卡3选收，以上条件都不满足时，则保持上一次的状态。保护倒换单元判断出该从哪个线路板卡收业务后，向线路板卡1发送保护倒换命令，该保护倒换命令中包含需要选 收的线路板卡编号；
线路板卡2选收：如果线路板卡1没有告警，则从线路板卡1选收，否则如果线路板卡3没有告警，则从线路板卡3选收，否则如果线路板卡4没有告警，则从线路板卡4选收，以上条件都不满足时，则保持上一次的状态。保护倒换单元判断出该从哪个线路板卡收业务后，向线路板卡2发送保护倒换命令，该保护倒换命令中包含需要选收的线路板卡编号；
线路板卡3选收：如果线路板卡4没有告警，则从线路板卡4选收，否则如果线路板卡2没有告警，则从线路板卡2选收，否则如果线路板卡1没有告警，则从线路板卡1选收，以上条件都不满足时，则保持上一次的状态。保护倒换单元判断出该从哪个线路板卡收业务后，向线路板卡3发送保护倒换命令，该保护倒换命令中包含需要选收的线路板卡编号；
线路板卡4选收：如果线路板卡3没有告警，则从线路板卡3选收，否则如果线路板卡1没有告警，则从线路板卡1选收，否则如果线路板卡2没有告警，则从线路板卡2选收，以上条件都不满足时，则保持上一次的状态。保护倒换单元判断出该从哪个线路板卡收业务后，向线路板卡4发送保护倒换命令，该保护倒换命令中包含需要选收的线路板卡编号。
步骤S5：各个业务板卡收到并确认对应命令后，执行对应保护动作，保障业务稳定运行。
可以理解的是，步骤S4是保护倒换处理单元通过对工作及保护通道业务信号的实际情况进行实时判断，向各个业务板卡发送保护倒换、清除倒换或维持等命令的操作。即只要完成步骤S1～S3后，一旦现网对应业务出现告警或信号劣化等触发保护倒换的条件，就会实 时触发步骤S4以及后续的步骤S5。当业务信号稳定，或步骤S1～S3的配置取消，步骤S4、S5才不会实时触发。
本发明不局限于上述实施方式，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围之内。
本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (10)

  1. 一种在光传送网中实现广播业务保护的装置，其特征在于：该装置包括控制单元、保护倒换处理单元，以及与控制单元、保护倒换处理单元进行通信的若干个业务板卡，若干个业务板卡组成各种不同组网类型的光传送网；
    所述控制单元用于：向各个业务板卡下发多播业务配置和多播保护配置；向保护倒换处理单元下发多播保护配置；
    所述保护倒换处理单元用于：收到控制单元下发的多播保护配置后，完成对应的多播保护配置；并通过对工作及保护通道业务信号的实际情况进行实时判断，向各个业务板卡发送保护倒换、清除倒换或维持的命令；
    所述业务板卡用于：收到控制单元下发的多播业务配置后，完成对应业务配置；收到控制单元下发的多播保护配置后，完成对应的多播保护配置；收到并确认保护倒换处理单元发送的保护倒换、清除倒换或维持的命令后，执行对应保护动作。
  2. 如权利要求1所述的在光传送网中实现广播业务保护的装置，其特征在于：所述各种不同组网类型的光传送网包括：环型、链型、相切环、相交环或网状网类型的光传送网。
  3. 如权利要求1所述的在光传送网中实现广播业务保护的装置，其特征在于：所述业务板卡包括支路板卡和线路板卡。
  4. 一种基于权利要求1所述装置的在光传送网中实现广播业务保护的方法，其特征在于，包括以下步骤：
    S1、控制单元向各个业务板卡下发多播业务配置，各个业务板卡完成对应业务配置；
    S2、控制单元向各个业务板卡下发多播保护配置，各个业务板卡 完成对应的多播保护配置；
    S3、控制单元向保护倒换处理单元下发多播保护配置，保护倒换处理单元完成对应的多播保护配置；
    S4、保护倒换处理单元通过对工作及保护通道业务信号的实际情况进行实时判断，向各个业务板卡发送保护倒换、清除倒换或维持的命令；
    S5、各个业务板卡收到并确认对应命令后，执行对应保护动作。
  5. 如权利要求4所述的在光传送网中实现广播业务保护的方法，其特征在于：所述业务板卡包括支路板卡和线路板卡；若干个所述业务板卡组成环型、链型、相切环、相交环或网状网类型的光传送网。
  6. 如权利要求5所述的在光传送网中实现广播业务保护的方法，其特征在于，步骤S1中，各个业务板卡完成对应业务配置的具体流程为：
    各个线路板卡将业务多播到本板卡该业务所具有的所有支路和线路上；
    若为相切环、相交环或网状网，则各个线路板卡还将业务多播到所在相切节点对应的其他环在这个节点相切业务对应的其他线路板卡上。
  7. 如权利要求5所述的在光传送网中实现广播业务保护的方法，其特征在于，步骤S2中，各个业务板卡完成对应的多播保护配置的具体流程为：
    各个线路板卡根据用户需要分别定义为所在环的工作或保护模式，并分别给自己进行编号；且每个环的每个工作、保护模式的编号都不一样；
    将每个支路板卡与本环的工作、保护模式建立的通道进行编号； 且相同环对应的工作或保护模式所建立的通道编号一致，不同环对应的工作或保护模式所建立的通道编号不一致。
  8. 如权利要求7所述的在光传送网中实现广播业务保护的方法，其特征在于：步骤S3中，控制单元向保护倒换处理单元下发多播保护配置时，是将每个环的工作、保护模式的编号，以及涉及的所有支路板卡编号配置下发给保护倒换处理单元。
  9. 如权利要求5所述的在光传送网中实现广播业务保护的方法，其特征在于，步骤S4具体包括以下操作：
    对于支路板卡，保护倒换处理单元监测支路板卡所在环工作和保护的告警；如果都没有告警，则向该环业务对应的所有支路板卡同时发送清除倒换命令，将业务倒换到该环工作通道上；如果该环工作有告警，则向该环业务对应的所有支路板卡同时发送保护倒换命令，将业务倒换到该环保护通道上；如果该环保护有告警，若业务在工作状态，则发送维持命令，保持不变，若业务在保护状态，则发送保护倒换命令，切换到工作状态；如果该环工作和保护都有告警，则发送维持命令，业务维持上一次的状态；
    对于线路板卡，保护倒换处理单元监测相切点对应业务的其他线路板卡是否有告警；如果都有告警，则发送维持命令，选收业务保持上一次状态；如果都没有告警，则发送保护倒换命令，优先选收本环上其他线路板卡的对应业务；如果本环的其他线路板卡业务有告警，则发送保护倒换命令，选收来自其他环对应业务无告警的线路板卡的业务；如果本环的其他线路板卡业务没有告警，而其他环的有告警，则发送维持命令，依然保持选收本环下的其他线路板卡的业务。
  10. 如权利要求9所述的在光传送网中实现广播业务保护的方法，其特征在于：所述告警是指触发保护倒换条件的告警和信号劣化。
PCT/CN2017/109847 2017-03-21 2017-11-08 一种在光传送网中实现广播业务保护的装置及方法 Ceased WO2018171209A1 (zh)

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