WO2008000120A1 - A method and device for triggering the optical network protection under the configuration of sharing the receiving apparatus - Google Patents
A method and device for triggering the optical network protection under the configuration of sharing the receiving apparatus Download PDFInfo
- Publication number
- WO2008000120A1 WO2008000120A1 PCT/CN2006/003785 CN2006003785W WO2008000120A1 WO 2008000120 A1 WO2008000120 A1 WO 2008000120A1 CN 2006003785 W CN2006003785 W CN 2006003785W WO 2008000120 A1 WO2008000120 A1 WO 2008000120A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- protection
- switching
- working channel
- receiving device
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
Definitions
- the present invention relates to the field of optical communications, and in particular to an implementation technology for optical switching protection switching using Wavelength Division Multiplexing (WDM) technology.
- WDM Wavelength Division Multiplexing
- BACKGROUND In an application of current optical transmission network protection switching, there are two system configuration modes for a receiving device of a protected service signal: a receiving device redundancy configuration and a receiving device sharing configuration, as shown in FIG. 1 and FIG. 2 respectively. .
- a service signal receiving device 101 is disposed on each of the working path and the protection path, and the quality of the service signal on the path in which the device is located can be detected, which is respectively APS (Automatic Protection Switching) of the system.
- the controller 102 (used to implement the APS protocol algorithm processing function) provides a trigger signal for protection switching and recovery.
- the service signals from the working path and the protection path are first selected by the protection executing device (corresponding to the protection selection switch 103 in the figure) to reach the receiving device 101, that is, the working path and
- the protection path uses the same receiving device to detect the quality of the service signal on the current path, and provides a trigger signal for the protection switching and recovery of the system APS controller.
- the protection executing device corresponding to the protection selection switch 103 in the figure
- the protection path uses the same receiving device to detect the quality of the service signal on the current path, and provides a trigger signal for the protection switching and recovery of the system APS controller.
- FIG. 1 since the working path and the protection path have independent signal detection capabilities, there is no problem of cooperative processing of the protection switching trigger criterion.
- the technical problem to be solved by the present invention is to provide an optical network protection triggering method and apparatus in a shared configuration of a receiving device, which solves the problem that the prior art cannot effectively determine the recovery signal caused by the switching and the recovery signal caused by the work-through repair. Technical problems with incorrect operation of the system cannot be avoided.
- the present invention provides an optical network protection triggering method in a receiving device sharing configuration, which is characterized in that a board is selected to connect a working channel or a protection channel to a service receiving device.
- the automatic protection switching controller determines whether the working channel and the protection channel are faulty according to the detection result of the working channel light detecting point, the protection channel light detecting point, and the service signal detecting point of the receiving device, and controls the selection list.
- the switch is switched as follows: mode 1, if the working channel is good, the switch remains in the working pass; mode 2, if the working channel is faulty, the protection channel is good, then the switch remains in the protection Channel 3: If the working channel fails and the protection channel fails, the switching remains in the working channel.
- the above method is characterized in that the alarm information and the alarm disappearing information of the working channel light detecting point and the protection channel light detecting point are used to determine a transition of a good or fault state of the working channel and the protection channel, And confirming the state change by using the alarm information and the alarm disappearing information of the service signal detection point.
- the above method is characterized in that, in the working channel is good, the switching is maintained under the initial condition of the working channel, and the second method further comprises the following steps: Step a1, if the service signal detection point detects a signal failure If the working channel is faulty, the receiving device sends a switching trigger message to the switching controller. Step bl, the switching controller sends a command packet to the selected board to perform a protection switching operation.
- the protection channel is connected to the receiving device, and simultaneously starts a timer with a length of time T; Step cl, within the time T of the timer, if the switching controller receives the service receiving device If the alarm disappears, the protection channel is good, and the connection of the protection channel is maintained.
- the above method is characterized in that, in the working channel, the switching is maintained under the initial condition of the working channel, and the third mode is further included in the step c1: If the switch controller does not receive the alarm disappear message reported by the service receiving device, it indicates that the protection channel also fails, and then performs a recovery operation to re-establish the connection of the working channel.
- the method of the present invention is characterized in that, in the case that both the working channel and the protection channel fail, the switching is maintained under the initial condition of the working channel, the method 1 includes: if the switching controller receives the The alarm disappearing signal detected by the service signal detection point indicates that the state of the working channel is changed to be good, and the connection of the working channel is continued.
- the above method is characterized in that, in the working channel and the protection channel, a fault occurs, and the switching is maintained under the initial condition of the working channel, and the second method includes: Step a2, the switching controller does not have On the premise that the alarm disappearing signal detected by the service signal detection point is received, if the switching controller receives the alarm disappearing message reported by the protection channel optical detection point, the state of the protection channel is changed to be good.
- Step b2 the switching controller sends a command message to the selection board to perform a protection switching operation, and the protection channel is connected to the receiving device, and simultaneously starts a timer with a length of time T; Step c2 During the time T of the timer, if the switching controller receives the alarm disappearing message reported by the service receiving device, the protection channel is good, and the connection of the protection channel is maintained.
- the above method is characterized in that, in the working channel and the protection channel, a fault occurs, and the switching is maintained under the initial condition of the working channel, and the third manner is further included in the step c2: During the time T of the device, if the switch controller does not receive the alarm disappear message reported by the service receiving device, it indicates that the protection channel is still faulty, and then performs a recovery operation to re-establish the connection of the working channel.
- the above method is characterized in that, in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the third manner includes: if the switching controller receives the protection The alarm generated by the channel light detection point generates a message, and the switching controller sends a command message to the selected board to perform a switching recovery operation to restore the connection to the working channel.
- the above method is characterized in that, in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the method 1 includes: Step a3, the receiving controller does not receive On the premise of the alarm generation message detected by the service signal detection point, if the switch controller receives the alarm disappear message of 4 ⁇ on the working channel light detection point, the state of the working channel is changed to The step b3, the switching controller sends a command message to the selection board to perform a protection recovery operation, and the working channel is connected to the receiving device, and simultaneously starts a timer with a length of T; Step 3 ⁇ 4 c3, in the time T of the timer, if the switching controller receives the alarm disappearing message reported by the service receiving device, it is confirmed that the working channel is good, and the connection of the working channel is maintained.
- the above method is characterized in that, in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the second mode is further included in the step c3: In the time T, if the switching controller does not receive the alarm disappearing message reported by the service receiving device, the working channel is still faulty, and the switching controller controls the selected board to perform a switching operation, and switches to The protection channel maintains the connection of the protection channel.
- the above method is characterized in that the length of the time T is greater than or equal to the sum of the maximum time required for the selected board to perform the switching and the maximum time required by the receiving device to detect the confirmation of the alarm disappearing.
- the present invention further provides an optical network protection triggering device in a receiving device sharing configuration, which is characterized in that it comprises selecting a board, a service receiving device, and an automatic protection switching controller.
- the selection board connects the working channel or the protection channel to the receiving device; the switching controller is configured to: according to the detection result of the working channel light detecting point, the protection channel light detecting point, and the service signal detecting point of the receiving device, Determining whether the working channel and the protection channel are faulty, and controlling the selection board to switch according to the following manner: if the working channel is good, the switching is maintained in the working channel; if the working channel is faulty, If the protection channel is good, the switch remains in the protection channel; if the working channel fails, the protection channel fails, and the switch remains in the working channel.
- FIG. 1 is a schematic diagram of a redundant configuration of a receiving device
- FIG. 2 is a schematic diagram of a shared configuration of a receiving device
- FIG. 3 is a flowchart of a shared receiving and receiving trigger provided by the present invention
- FIG. 1 Schematic diagram of the protection application.
- DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific technical embodiments of the present invention will be described in detail below with reference to the drawings and application examples.
- the present invention provides a corresponding solution for the system protection switching reliable triggering problem in the case of a shared receiving device configuration application
- FIG. 3 is a shared receiving device triggering flowchart. As shown in the figure, the following mainly includes the following implementation steps:
- the device shown in Fig. 2 can provide the following three detection points: a service signal detection point, a work channel light detection point, and a protection channel light detection point.
- the OTU When the "service signal detection point" detects a signal failure, the OTU sends an APS trigger message to the APS controller through the communication control bus, and the APS controller sends a command message to the protection selection switch module through the communication control bus to perform the protection switching operation.
- start a timer with a length of T and the time length setting of T should be not less than the sum of "maximum time T1 required for protection switch to perform switching” and "maximum time required for OTU detection to confirm alarm disappears T2".
- the protection selection switch remains in the protection switching state; if the alarm is not received by the service receiving device, the alarm is cleared. If the message is that the protection path is faulty, the APS controller sends a command message to the protection selection switch to perform the operation of returning to the working path through the communication control bus. After the step 3), if the optical switch state is the working channel state (the alarm state of the corresponding service receiving device is always in the alarm generating state), proceed as follows:
- the APS controller After the APS controller does not receive the alarm disappearance signal detected by the "service signal detection point", the APS controller receives the alarm disappear message reported by the "protection channel light detection point", then the APS controller The control protection selection switch performs a protection switching operation, and simultaneously starts a timer of a time length T (the length of the T is set as in the previous step 2). If the APS controller receives the alarm disappear message reported by the service receiving device, the protection selection switch maintains the protection switching state, and then the processing step continues to step 6); If the alarm disappearing message reported by the service receiving device is not received, the protection path is still faulty.
- the APS controller sends a command message to the protection selection switch through the communication control bus to perform a recovery operation, returns to the working channel, and the processing step returns to step 4).
- the optical switch state is maintained in the protection channel state (the alarm state corresponding to the working channel is in the alarm generation state), proceed as follows:
- step 6 If the APS controller receives the alarm generation message on the “protection channel light detection point”, the APS controller sends a command message to the protection selection switch through the communication control bus to perform the switching recovery operation and restore to the working channel. The processing steps go to step 4).
- the APS controller does not receive the alarm generation message on the "protection channel light detection point"
- the APS controller receives the alarm disappear message reported by the "work channel light detection point”
- the APS The controller sends a command message to the protection selection switch through the communication control bus to perform a protection recovery operation, and simultaneously starts a timer with a length of time ,, and the time length of the ⁇ is set as in the previous step 2), and the timer starts counting to the timing.
- FIG. 4 is a schematic diagram of an application of point-to-point 1+1 protection in an optical transmission system, in which a service signal is split into two at a source node and transmitted to a destination node along a working channel and a protection channel, and the destination node passes light.
- the board (the board) receives the service signals from the working channel and the protection channel.
- the board itself provides optical power detection for the working channel and the protection channel.
- the selected service signal is sent to the board.
- the connected service receives the board OTU.
- the OTU board can detect the loss of the signal (LOS), the loss of the frame (LOF), and the error-based (BER) of the service signal in real time and report it to the APS controller board.
- the APS control board sends a switch switching operation to the APS (OP board) according to the protection protocol algorithm.
- the OTU detects the LOS alarm generation message, and sends a message to the APS control board through the control bus.
- T1 is the maximum time required for the OP board to perform the switching
- T2 is the maximum time required for the OTU board to confirm that the alarm disappears.
- the APS control board receives the OTU. Detecting the signal of the last 4 ⁇ returns to normal
- the control OP maintains the protection switching state. After the fault of the position 1 is repaired, the optical power of the OP working channel detects that the optical power is restored to normal and is reported to the APS control board.
- the APS control board controls the operation of the OP board to return to the working channel and starts the timer T (T).
- the APS control board receives the OTU detection ⁇ : Gen normal message signals, and then maintained in the working path OP control state.
- the OTU signal detection point detects the signal failure and reports the APS control board signal loss (LOS) alarm.
- the APS control board controls the OP board to perform the operation of switching to the protection channel.
- the APS control board receives the protection channel optical power alarm signal of the OP, and then controls the OP board to perform the recovery operation, and the OP resumes the working channel state.
- the optical protection point of the OP protection channel detects that the optical power is restored to normal and is reported to the APS control board.
- the APS control board controls the OP board to perform the operation of switching to the protection channel, and starts the timer T ( The value of T is 350ms.) In the T-timed time range, the APS control board receives the signal reported by the OTU detection and returns to the normal message, and then the control OP maintains the protection path state. When only the location 2 is faulty, the system APS control board only needs to mark the protection channel alarm status as "alarm generation”. The APS control board does not control the OP board to perform any operations, and the OP maintains the working channel status. After the location 2 fails, the system APS control board only needs to mark the protection channel alarm status as "alarm generation".
- the APS control board receives the alarm signal of the protection channel optical power failure of the OP. After that, the OP board is controlled to perform the recovery operation, and the OP board is restored to the working channel state. After the location 2 fault is repaired, the optical protection point of the OP protection channel detects that the optical power is restored to normal and is reported to the APS control board.
- the APS control board controls the OP board to perform the operation of switching to the protection channel, and starts the timer T ( The value of T is 350ms.) In the T-timed time range, the APS control board receives the signal from the OTU detection and returns to the normal message, and then the control OP maintains the protection path state.
Abstract
A method and device for triggering the optical network protection under the configuration of sharing the receiving apparatus is disclosed. The method comprises: the optional board connects the working path or the protection path to the service receiving apparatus; the automatic protection switching controller judges whether there is fault on the working path and the protection path based on the detection result detected by the detecting point of working path, the detecting point of protection path and the service detecting point of the service receiving apparatus; and the automatic protection switching controller controls the optional board to switch according to the underlying manner: if there is no fault on the working path, the switching remains on the working path; if there is fault on the working path and no fault on the protection path, the switching remains on the protection path; if there is fault on both working path and protection path, the switching remains on the working path. The invention can effectively judge the restoring signal arising from switching and the restoring signal arising from the restoration of working path and avoid the error operation of the system.
Description
在接收 i殳备共享配置下的光网络保护触发方法及装置 技术领域 本发明涉及光通讯领域， 特别是涉及采用波分复用 WDM ( Wavelength Division Multiplexing )技术的光传输网保护倒换的实现技术。 背景技术 在目前光传送网络保护倒换的应用中，对于被保护业务信号的接收设备来 说存在两种系统配置方式： 接收设备冗余配置和接收设备共享配置， 分别如图 1和图 2所示。 对于图 1所示的接收设备冗余配置方式， 在工作通路和保护通 路上各配置一个业务信号接收设备 101 , 可以检测其所在通路上的业务信号质 量状况， 分别为系统的 APS ( Automatic Protection Switching, 自动保护倒换 ) 控制器 102 (用来实现 APS协议算法处理功能）提供保护倒换和恢复的触发信 号。 对于图 2所示的接收设备共享配置方式， 来自工作通路和保护通路的业务 信号首先经过保护执行装置 （对应图中的保护选择开关 103 )进行信号选择之 后在到达接收设备 101 , 即工作通路和保护通路共享使用同一个接收设备， 用 于检测当前通路上的业务信号质量状况，为系统 APS控制器提供保护倒换和恢 复的触发信号。 对于图 1的应用情况来说， 由于工作通路和保护通路具有各自 独立的信号检测能力， 所以不会存在保护倒换触发判据的协同处理问题。 但是 对于图 2的共享接收设备的配置应用来说， 在系统工作通路故障发生倒换后的 一瞬间， 业务接收设备在检测会检测到信号恢复， 但是不应触发系统的保护恢 复（返回到工作通路）操作； 在业务信号倒换到保护通路后， 接收设备只能检 测到保护通路的信号状况， 系统将很难有效实现工作通路正常后的保护状态恢 复操作。 发明内容 本发明所要解决的技术问题是提供一种在接收设备共享配置下的光网络 保护触发方法及装置， 解决现有技术不能有效判别倒换引发的恢复信号和工作 通 修复所引发的恢复信号， 不能避免系统的错误操作的技术问题。 为达到上述目的，本发明提供了一种在接收设备共享配置下的光网络保护 触发方法，其特点在于，选择单板将工作通道或保护通道连接到业务接收设备，
自动保护倒换控制器 >据工作通道光检测点、 保护通道光检测点和所述接收设 备的业务信号检测点的检测结果， 判断所述工作通道和保护通道是否发生故 障， 并控制所述选择单板遵照如下方式进行切换： 方式一， 如果所述工作通道 良好， 则切换保持在所述工作通遺； 方式二， 如果所述工作通道故障， 所述保 护通道良好， 则切换保持在所述保护通道； 方式三， 如果所述工作通道故障， 所述保护通道故障， 则切换保持在所述工作通道。 上述的方法，其特点在于，利用所述工作通道光检测点和所述保护通道光 检测点的告警信息和告警消失信息来确定所述工作通道和所述保护通道的良 好或故障状态的转变， 并利用所述业务信号检测点的告警信息和告警消失信息 对所述状态改变进行进一步的确认。 上述的方法， 其特点在于， 在所述工作通道良好， 切换保持在所述工作通 道的初始条件下， 所述方式二进一步包括如下步骤： 步驟 al， 如果所述业务信号检测点检测到信号故障， 则说明所述工作通 道发生故障， 所述接收设备向所述倒换控制器发送倒换触发消息； 步骤 bl , 所述倒换控制器发送命令报文给所述选择单板来执行保护倒换 操作， 由所述保护通道连接所述接收设备， 并同时启动一时间长度为 T的计时 器； 步驟 cl , 在计时器的时间 T内， 如果所述倒换控制器接收到所述业务接 收设备上 4艮的告警消失消息， 则说明所述保护通道良好， 保持所述保护通道的 连接。 上述的方法， 其特点在于， 在所述工作通道良好， 切换保持在所述工作通 道的初始条件下， 所述方式三为在所述步骤 cl 中进一步包括： 在计时器的时 间 T内，如果所述倒换控制器没有接收到所述业务接收设备上报的告警消失消 息， 则说明所述保护通道也发生了故障， 则执行恢复操作， 重新保持所述工作 通道的连接。 上述的方法， 其特点在于， 在所迷工作通道和所述保护通道均发生故障， 切换保持在所述工作通道的初始条件下， 所述方式一包括： 如果所述倒换控制 器接收到所述业务信号检测点检测到的告警消失信号， 则说明所述工作通道的 状态改为良好， 继续保持所述工作通道的连接。
上述的方法， 其特点在于， 在所述工作通道和所述保护通道均发生故障， 切换保持在所述工作通道的初始条件下， 所述方式二包括： 步骤 a2， 在所述倒换控制器没有接收到所述业务信号检测点检测到的告 警消失信号的前提下 , 如果所述倒换控制器接收到所述保护通道光检测点上报 的告警消失消息， 则说明所述保护通道的状态改为良好； 步骤 b2， 所述倒换控制器发送命令报文给所述选择单板来执行保护倒换 操作， 由所述保护通道连接所述接收设备， 并同时启动一时间长度为 T的计时 器； 步骤 c2, 在计时器的时间 T内， 如果所述倒换控制器接收到所述业务接 收设备上报的告警消失消息， 则说明所述保护通道良好， 保持所述保护通道的 连接。 上述的方法， 其特点在于， 在所述工作通道和所述保护通道均发生故障， 切换保持在所述工作通道的初始条件下 , 所述方式三为在所述步骤 c2 中进一 步包括： 在计时器的时间 T内， 如果所述倒换控制器没有接收到所述业务接收 设备上报的告警消失消息， 则说明所述保护通道还是故障， 则执行恢复操作， 重新保持所述工作通道的连接。 上述的方法， 其特点在于， 在所述工作通道故障， 所述保护通道良好， 切 换保持在所述保护通道的初始条件下， 所述方式三包括： 如果所述倒换控制器 接收到所述保护通道光检测点上报的告警产生消息， 则所述倒换控制器发送命 令报文给所述选择单板执行倒换恢复操作， 恢复到所述工作通道的连接。 上述的方法， 其特点在于， 在所述工作通道故障， 所述保护通道良好， 切 换保持在所述保护通道的初始条件下， 所述方式一包括： 步骤 a3,在所述倒换控制器没有接收到所述业务信号检测点检测到的告警 产生消息的前提下， 如果所述倒换控制器接收到所述工作通道光检测点上 4艮的 告警消失消息， 则说明所述工作通道的状态改为良好； 步骤 b3 , 所述倒换控制器发送命令报文给所述选择单板来执行保护恢复 操作， 由所述工作通道连接所述接收设备， 并同时启动一时间长度为 T的计时 器；
步 ¾ c3 , 在计时器的时间 T内， 如果所述倒换控制器接收到所述业务接 收设备上报的告警消失消息， 则确认所述工作通道良好， 保持所迷工作通道的 连接。 上述的方法， 其特点在于， 在所述工作通道故障， 所述保护通道良好， 切 换保持在所述保护通道的初始条件下， 所述方式二为在所述步驟 c3 中进一步 包括： 在计时器的时间 T内， 如果所述倒换控制器没有接收到所述业务接收设 备上报的告警消失消息， 则所述工作通道仍然故障 , 所述倒换控制器控制所述 选择单板执行倒换操作 , 倒换到所述保护通道并保持所述保护通道的连接。 上述的方法， 其特点在于， 所述时间 T的长度大于或等于所述选择单板 执行倒换所需的最大时间和所述接收设备检测确认告警消失所需的最大时间 之和。 为了更好的实现本发明的目的，本发明还提供了一种在接收设备共享配置 下的光网络保护触发装置， 其特点在于， 包括选择单板、 业务接收设备和自动 保护倒换控制器； 所述选择单板将工作通道或保护通道连接到所述接收设备； 所述倒换控制器用于： 根据工作通道光检测点、 保护通道光检测点和所述接收 设备的业务信号检测点的检测结果 , 判断所述工作通道和保护通道是否发生故 障， 并控制所述选择单板遵照如下方式进行切换： 如果所述工作通道良好， 则 切换保持在所述工作通道； 如果所述工作通道故障， 所述保护通道良好， 则切 换保持在所述保护通道； 如果所述工作通道故障， 所述保护通道故障， 则切换 保持在所述工作通道。 本发明的技术效果在于： 本发明针对接收设备共享配置的情况， 能够有效 判别倒换引发的恢复信号和工作通路被修复所引发的恢复信号， 避免系统的错 误操作。 附图说明 图 1为接收设备冗余配置的示意图； 图 2为接收设备共享配置的示意图； 图 3为本发明提供的共享接收设 ^呆护触发流程图； 图 4为本发明提供的 1+1保护应用举例示意图。
具体实施方式 下面结合附图和应用举例， 对本发明的具体技术实施方案作详细的描述。 本发明针对共享接收设备配置应用情形下的系统保护倒换可靠触发问题， 提出了相应的解决方法， 图 3为共享接收设 ^护触发流程图， 如图所示， 主 要包括如下实现步驟： The present invention relates to the field of optical communications, and in particular to an implementation technology for optical switching protection switching using Wavelength Division Multiplexing (WDM) technology. BACKGROUND In an application of current optical transmission network protection switching, there are two system configuration modes for a receiving device of a protected service signal: a receiving device redundancy configuration and a receiving device sharing configuration, as shown in FIG. 1 and FIG. 2 respectively. . For the redundant configuration of the receiving device shown in FIG. 1, a service signal receiving device 101 is disposed on each of the working path and the protection path, and the quality of the service signal on the path in which the device is located can be detected, which is respectively APS (Automatic Protection Switching) of the system. , automatic protection switching) The controller 102 (used to implement the APS protocol algorithm processing function) provides a trigger signal for protection switching and recovery. For the receiving device sharing configuration mode shown in FIG. 2, the service signals from the working path and the protection path are first selected by the protection executing device (corresponding to the protection selection switch 103 in the figure) to reach the receiving device 101, that is, the working path and The protection path uses the same receiving device to detect the quality of the service signal on the current path, and provides a trigger signal for the protection switching and recovery of the system APS controller. For the application case of FIG. 1, since the working path and the protection path have independent signal detection capabilities, there is no problem of cooperative processing of the protection switching trigger criterion. However, for the configuration application of the shared receiving device of FIG. 2, at a moment after the system working path failure is switched, the service receiving device detects the signal recovery in the detection, but should not trigger the system protection recovery (return to the working path) Operation; After the service signal is switched to the protection path, the receiving device can only detect the signal status of the protection path, and the system will be difficult to effectively realize the protection status recovery operation after the working path is normal. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide an optical network protection triggering method and apparatus in a shared configuration of a receiving device, which solves the problem that the prior art cannot effectively determine the recovery signal caused by the switching and the recovery signal caused by the work-through repair. Technical problems with incorrect operation of the system cannot be avoided. In order to achieve the above object, the present invention provides an optical network protection triggering method in a receiving device sharing configuration, which is characterized in that a board is selected to connect a working channel or a protection channel to a service receiving device. The automatic protection switching controller determines whether the working channel and the protection channel are faulty according to the detection result of the working channel light detecting point, the protection channel light detecting point, and the service signal detecting point of the receiving device, and controls the selection list. The switch is switched as follows: mode 1, if the working channel is good, the switch remains in the working pass; mode 2, if the working channel is faulty, the protection channel is good, then the switch remains in the protection Channel 3: If the working channel fails and the protection channel fails, the switching remains in the working channel. The above method is characterized in that the alarm information and the alarm disappearing information of the working channel light detecting point and the protection channel light detecting point are used to determine a transition of a good or fault state of the working channel and the protection channel, And confirming the state change by using the alarm information and the alarm disappearing information of the service signal detection point. The above method is characterized in that, in the working channel is good, the switching is maintained under the initial condition of the working channel, and the second method further comprises the following steps: Step a1, if the service signal detection point detects a signal failure If the working channel is faulty, the receiving device sends a switching trigger message to the switching controller. Step bl, the switching controller sends a command packet to the selected board to perform a protection switching operation. The protection channel is connected to the receiving device, and simultaneously starts a timer with a length of time T; Step cl, within the time T of the timer, if the switching controller receives the service receiving device If the alarm disappears, the protection channel is good, and the connection of the protection channel is maintained. The above method is characterized in that, in the working channel, the switching is maintained under the initial condition of the working channel, and the third mode is further included in the step c1: If the switch controller does not receive the alarm disappear message reported by the service receiving device, it indicates that the protection channel also fails, and then performs a recovery operation to re-establish the connection of the working channel. The method of the present invention is characterized in that, in the case that both the working channel and the protection channel fail, the switching is maintained under the initial condition of the working channel, the method 1 includes: if the switching controller receives the The alarm disappearing signal detected by the service signal detection point indicates that the state of the working channel is changed to be good, and the connection of the working channel is continued. The above method is characterized in that, in the working channel and the protection channel, a fault occurs, and the switching is maintained under the initial condition of the working channel, and the second method includes: Step a2, the switching controller does not have On the premise that the alarm disappearing signal detected by the service signal detection point is received, if the switching controller receives the alarm disappearing message reported by the protection channel optical detection point, the state of the protection channel is changed to be good. Step b2, the switching controller sends a command message to the selection board to perform a protection switching operation, and the protection channel is connected to the receiving device, and simultaneously starts a timer with a length of time T; Step c2 During the time T of the timer, if the switching controller receives the alarm disappearing message reported by the service receiving device, the protection channel is good, and the connection of the protection channel is maintained. The above method is characterized in that, in the working channel and the protection channel, a fault occurs, and the switching is maintained under the initial condition of the working channel, and the third manner is further included in the step c2: During the time T of the device, if the switch controller does not receive the alarm disappear message reported by the service receiving device, it indicates that the protection channel is still faulty, and then performs a recovery operation to re-establish the connection of the working channel. The above method is characterized in that, in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the third manner includes: if the switching controller receives the protection The alarm generated by the channel light detection point generates a message, and the switching controller sends a command message to the selected board to perform a switching recovery operation to restore the connection to the working channel. The above method is characterized in that, in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the method 1 includes: Step a3, the receiving controller does not receive On the premise of the alarm generation message detected by the service signal detection point, if the switch controller receives the alarm disappear message of 4工作 on the working channel light detection point, the state of the working channel is changed to The step b3, the switching controller sends a command message to the selection board to perform a protection recovery operation, and the working channel is connected to the receiving device, and simultaneously starts a timer with a length of T; Step 3⁄4 c3, in the time T of the timer, if the switching controller receives the alarm disappearing message reported by the service receiving device, it is confirmed that the working channel is good, and the connection of the working channel is maintained. The above method is characterized in that, in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the second mode is further included in the step c3: In the time T, if the switching controller does not receive the alarm disappearing message reported by the service receiving device, the working channel is still faulty, and the switching controller controls the selected board to perform a switching operation, and switches to The protection channel maintains the connection of the protection channel. The above method is characterized in that the length of the time T is greater than or equal to the sum of the maximum time required for the selected board to perform the switching and the maximum time required by the receiving device to detect the confirmation of the alarm disappearing. In order to achieve the purpose of the present invention, the present invention further provides an optical network protection triggering device in a receiving device sharing configuration, which is characterized in that it comprises selecting a board, a service receiving device, and an automatic protection switching controller. The selection board connects the working channel or the protection channel to the receiving device; the switching controller is configured to: according to the detection result of the working channel light detecting point, the protection channel light detecting point, and the service signal detecting point of the receiving device, Determining whether the working channel and the protection channel are faulty, and controlling the selection board to switch according to the following manner: if the working channel is good, the switching is maintained in the working channel; if the working channel is faulty, If the protection channel is good, the switch remains in the protection channel; if the working channel fails, the protection channel fails, and the switch remains in the working channel. The technical effects of the present invention are as follows: The present invention can effectively determine the recovery signal caused by the switching and the recovery signal caused by the repair of the working path, and avoid the erroneous operation of the system. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram of a redundant configuration of a receiving device; FIG. 2 is a schematic diagram of a shared configuration of a receiving device; FIG. 3 is a flowchart of a shared receiving and receiving trigger provided by the present invention; FIG. 1 Schematic diagram of the protection application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific technical embodiments of the present invention will be described in detail below with reference to the drawings and application examples. The present invention provides a corresponding solution for the system protection switching reliable triggering problem in the case of a shared receiving device configuration application, and FIG. 3 is a shared receiving device triggering flowchart. As shown in the figure, the following mainly includes the following implementation steps:
1)首先需要综合共享保护设 装置能够提供的各个检测点的触发信息，图 2所示装置能够提供如下三个检测点： 业务信号检测点、 工作通道光检测点、 保护通道光检测点。 1) Firstly, it is necessary to comprehensively share the trigger information of each detection point that the protection device can provide. The device shown in Fig. 2 can provide the following three detection points: a service signal detection point, a work channel light detection point, and a protection channel light detection point.
2)当 "业务信号检测点" 检测到信号故障时， OTU通过通讯控制总线发 送 APS触发消息给 APS控制器， APS控制器通过通讯控制总线发送命令报文 给保护选择开关模块来执行保护倒换操作；同时启动一时间长度为 T的计时器， T的时间长度设置应不小于 "保护选择开关执行倒换所需最大时间 T1 "和 "OTU 检测确认告警消失最大所需时间 T2" 之和。 2) When the "service signal detection point" detects a signal failure, the OTU sends an APS trigger message to the APS controller through the communication control bus, and the APS controller sends a command message to the protection selection switch module through the communication control bus to perform the protection switching operation. At the same time, start a timer with a length of T, and the time length setting of T should be not less than the sum of "maximum time T1 required for protection switch to perform switching" and "maximum time required for OTU detection to confirm alarm disappears T2".
3)在计时器开始计时到计时结束的时间内， APS控制器如果接收到业务接 收设备上报的告警消失消息， 则保护选择开关保持在保护倒换状态； 如果没有 收到业务接收设备上报的告警消失消息， 则认定保护通路存在故障， APS控制 器通过通讯控制总线发送命令报文给保护选择开关执行返回到工作通路的操 作。 在步驟 3 )之后如果光开关状态为工作通道状态（此时对应业务接收设备 的告警状态一直处于告警产生状态）， 则按照如下步驟进行： 3) If the APS controller receives the alarm disappear message reported by the service receiving device, the protection selection switch remains in the protection switching state; if the alarm is not received by the service receiving device, the alarm is cleared. If the message is that the protection path is faulty, the APS controller sends a command message to the protection selection switch to perform the operation of returning to the working path through the communication control bus. After the step 3), if the optical switch state is the working channel state (the alarm state of the corresponding service receiving device is always in the alarm generating state), proceed as follows:
4)此后如果 APS控制器接收到 "业务信号检测点" 检测到的告警消失信 号时， 则可判定工作通路告警消失， 保护选择开关状态继续维持在工作通道状 态。 返回到步 1 ) 的处理状态。 4) If the APS controller receives the alarm disappearance signal detected by the "service signal detection point" thereafter, it can be determined that the working path alarm disappears and the protection selection switch state continues to remain in the working channel state. Return to the processing state of step 1).
5)此后在 APS控制器没有接收到 "业务信号检测点" 检测到的告警消失 信号的前提下， 当 APS控制器接收到 "保护通道光检测点 "上报的告警消失消 息后，则 APS控制器控制保护选择开关执行保护倒换操作， 同时启动一时间长 度为 T的计时器（ T的时间长度设置同前面步骤 2 )的规定）。 在计时器开始计 时到计时结束的时间内， APS控制器如果接收到业务接收设备上报的告警消失 消息， 则保护选择开关保持保护倒换状态， 然后处理步 继续到步骤 6 ); 如果
没有收到业务接收设备上报的告警消失消息 , 则认定保护通路仍然存在故障，5) After the APS controller does not receive the alarm disappearance signal detected by the "service signal detection point", the APS controller receives the alarm disappear message reported by the "protection channel light detection point", then the APS controller The control protection selection switch performs a protection switching operation, and simultaneously starts a timer of a time length T (the length of the T is set as in the previous step 2). If the APS controller receives the alarm disappear message reported by the service receiving device, the protection selection switch maintains the protection switching state, and then the processing step continues to step 6); If the alarm disappearing message reported by the service receiving device is not received, the protection path is still faulty.
APS控制器通过通讯控制总线发送命令艮文给保护选择开关执行恢复操作，返 回工作通道， 处理步錄返回到步骤 4 )。 在步驟 3 )之后如果光开关状态维持在保护通道状态（此时对应工作通道 的告警状态处于告警产生状态）， 则按照如下步骤进行： The APS controller sends a command message to the protection selection switch through the communication control bus to perform a recovery operation, returns to the working channel, and the processing step returns to step 4). After the step 3), if the optical switch state is maintained in the protection channel state (the alarm state corresponding to the working channel is in the alarm generation state), proceed as follows:
6)如果 APS控制器接收到 "保护通道光检测点 " 上艮的告警产生消息后， APS控制器通过通讯控制总线发送命令艮文给保护选择开关执行倒换恢复操 作， 恢复到工作通道。 处理步骤转到步骤 4 )。 6) If the APS controller receives the alarm generation message on the “protection channel light detection point”, the APS controller sends a command message to the protection selection switch through the communication control bus to perform the switching recovery operation and restore to the working channel. The processing steps go to step 4).
7)在 APS控制器没有接收到 "保护通道光检测点" 上 4艮的告警产生消息 的前提下， 当 APS控制器如果接收到 "工作通道光检测点"上报的告警消失消 息后，则 APS控制器通过通讯控制总线发送命令报文给保护选择开关执行保护 恢复操作， 同时启动一时间长度为 Τ的计时器， Τ的时间长度设置同前面步骤 2 ) 的规定， 在计时器开始计时到计时结束的时间内， APS控制器如果接收到 业务接收设备上报的告警消失消息， 则控制保护选择开关保持恢复状态， 处理 步骤返回到步骤 1 ); 如果没有收到业务接收设备上报的告警消失消息， 则认定 工作通路仍然存在故障， APS控制器控制保护选择开关执行倒换操作， 倒换到 保护通道， 处理步骤返回到步骤 6 )。 如图 4所示的为光传送系统中点到点 1+1保护的应用示意图， 其中在源 节点将业务信号分成两份同时沿着工作通道和保护通道向目的节点传送， 在目 的节点通过光选择单板（ΟΡ 单板）分别接收来自工作通道和保护通道的业务 信号， ΟΡ单板本身提供对工作通道和保护通道的光功率检测，在 ΟΡ单板之后 将选收后的业务信号发送至所连接的业务接收单板 OTU, OTU单板能够进行 对业务信号的信号丢失（LOS )、 帧丟失（LOF )、 误码越限（BER )等告警进 行实时检测并上报 APS控制器单板， 然后 APS控制单板根据保护协议算法向 APS执行单板（ OP单板）发出开关倒换操作。 当仅位置①发生故障时， OTU检测到 LOS告警产生消息， 通过控制总线 发送报文给 APS控制单板， APS控制单板控制 APS执行单板 OP执行保护倒 换操作， 同时启动计时器 T = Tl + T2 = 50ms+300ms=350ms, 其中 T1为 OP单 板执行倒换所需最大时间 , T2为 OTU单板检测确认告警消失最大所需时间； 在 T计时时间范围内， APS控制单板接收到 OTU检测上 4艮的信号恢复正常消
息， 同时控制 OP维持在保护倒换状态。 随后位置①故障被修复后， OP工作通 道光检测点检测到光功率恢复正常并上报 APS控制单板， APS控制单板则控 制 OP单板执行返回工作通道的操作， 同时启动计时器 T ( T取值 350ms ), 在 T计时时间范围内， APS控制单板接收到 OTU检测上^ :艮的信号恢复正常消息， 随后控制 OP维持在工作通路状态。 当位置①发生故障时， OTU信号检测点检测到信号故障并上报 APS控制 单板信号丢失（LOS )告警， APS控制单板控制 OP单板执行倒换到保护通道 的操作。 随后位置②再发生故障时， APS控制单板接收到 OP的保护通道光功 率告警信号之后，随即会控制 OP单板执行恢复操作， OP恢复在工作通道状态。 随后位置②故障被修复后， OP保护通道光检测点检测到光功率恢复正常并上 报 APS控制单板 , APS控制单板则控制 OP单板执行倒换到保护通道的操作， 同时启动计时器 T ( T取值 350ms )， 在 T计时时间范围内， APS控制单板接收 到 OTU检测上报的信号恢复正常消息， 随后控制 OP维持在保护通路状态。 当仅位置②发生故障时， 系统 APS控制单板只需将保护通道告警状态标 记为 "告警产生"， APS控制单板不会控制 OP单板执行任何操作， OP维持在 工作通道状态。 当位置②发生故障后， 系统 APS控制单板只需将保护通道告警 状态标记为 "告警产生"， 随后位置①再发生故障时， APS控制单板接收到 OP 的保护通道光功率故障的告警信号之后， 随即会控制 OP单板执行恢复操作， OP单板恢复在工作通道状态。 随 位置②故障被修复后， OP保护通道光检测 点检测到光功率恢复正常并上报 APS控制单板， APS控制单板则控制 OP单板 执行倒换到保护通道的操作， 同时启动计时器 T ( T取值 350ms ), 在 T计时时 间范围内， APS控制单板接收到 OTU检测上 4艮的信号恢复正常消息， 随后控 制 OP维持在保护通路状态。 以上所述仅为本发明的较佳实施例，并非用来限定本发明的实施范围；凡 是依本发明所作的等效变化与修改， 都被本发明的专利范围所涵盖。
7) On the premise that the APS controller does not receive the alarm generation message on the "protection channel light detection point", when the APS controller receives the alarm disappear message reported by the "work channel light detection point", the APS The controller sends a command message to the protection selection switch through the communication control bus to perform a protection recovery operation, and simultaneously starts a timer with a length of time ,, and the time length of the Τ is set as in the previous step 2), and the timer starts counting to the timing. If the APS controller receives the alarm disappearing message reported by the service receiving device, the control protection selection switch remains in the recovery state, and the processing returns to step 1); if the alarm disappearing message reported by the service receiving device is not received, Then, it is determined that the working path still has a fault, and the APS controller controls the protection selection switch to perform the switching operation, and switches to the protection channel, and the processing step returns to step 6). FIG. 4 is a schematic diagram of an application of point-to-point 1+1 protection in an optical transmission system, in which a service signal is split into two at a source node and transmitted to a destination node along a working channel and a protection channel, and the destination node passes light. The board (the board) receives the service signals from the working channel and the protection channel. The board itself provides optical power detection for the working channel and the protection channel. After the board is sent, the selected service signal is sent to the board. The connected service receives the board OTU. The OTU board can detect the loss of the signal (LOS), the loss of the frame (LOF), and the error-based (BER) of the service signal in real time and report it to the APS controller board. Then, the APS control board sends a switch switching operation to the APS (OP board) according to the protection protocol algorithm. When only the location 1 is faulty, the OTU detects the LOS alarm generation message, and sends a message to the APS control board through the control bus. The APS control board controls the APS to perform the board OP to perform the protection switching operation, and starts the timer T = Tl. + T2 = 50ms+300ms=350ms, where T1 is the maximum time required for the OP board to perform the switching, and T2 is the maximum time required for the OTU board to confirm that the alarm disappears. In the T timing time range, the APS control board receives the OTU. Detecting the signal of the last 4 恢复 returns to normal At the same time, the control OP maintains the protection switching state. After the fault of the position 1 is repaired, the optical power of the OP working channel detects that the optical power is restored to normal and is reported to the APS control board. The APS control board controls the operation of the OP board to return to the working channel and starts the timer T (T). value 350ms), within the T counting time, the APS control board receives the OTU detection ^: Gen normal message signals, and then maintained in the working path OP control state. When the location 1 is faulty, the OTU signal detection point detects the signal failure and reports the APS control board signal loss (LOS) alarm. The APS control board controls the OP board to perform the operation of switching to the protection channel. After the location 2 is faulty, the APS control board receives the protection channel optical power alarm signal of the OP, and then controls the OP board to perform the recovery operation, and the OP resumes the working channel state. After the location 2 fault is repaired, the optical protection point of the OP protection channel detects that the optical power is restored to normal and is reported to the APS control board. The APS control board controls the OP board to perform the operation of switching to the protection channel, and starts the timer T ( The value of T is 350ms.) In the T-timed time range, the APS control board receives the signal reported by the OTU detection and returns to the normal message, and then the control OP maintains the protection path state. When only the location 2 is faulty, the system APS control board only needs to mark the protection channel alarm status as "alarm generation". The APS control board does not control the OP board to perform any operations, and the OP maintains the working channel status. After the location 2 fails, the system APS control board only needs to mark the protection channel alarm status as "alarm generation". When the position 1 fails again, the APS control board receives the alarm signal of the protection channel optical power failure of the OP. After that, the OP board is controlled to perform the recovery operation, and the OP board is restored to the working channel state. After the location 2 fault is repaired, the optical protection point of the OP protection channel detects that the optical power is restored to normal and is reported to the APS control board. The APS control board controls the OP board to perform the operation of switching to the protection channel, and starts the timer T ( The value of T is 350ms.) In the T-timed time range, the APS control board receives the signal from the OTU detection and returns to the normal message, and then the control OP maintains the protection path state. The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent variations and modifications of the present invention are covered by the scope of the present invention.
Claims
权 利 要 求 书 一种在接收设备共享配置下的光网络保护触发方法， 其特征在于， 选择 单板将工作通道或保护通道连接到业务接收设备， 自动保护倒换控制器 根据工作通道光检测点、 保护通道光检测点和所述接收设备的业务信号 检测点的检测结果， 判断所述工作通道和保护通道是否发生故障， 并控 制所述选择单板遵照如下方式进行切换： The invention provides an optical network protection triggering method in a receiving device sharing configuration, which is characterized in that: selecting a board to connect a working channel or a protection channel to a service receiving device, and automatically protecting the switching controller according to the working channel light detecting point and protecting The detection result of the channel light detection point and the service signal detection point of the receiving device determines whether the working channel and the protection channel are faulty, and controls the selection board to switch according to the following manner:
方式一， 如果所述工作通道良好， 则切换保持在所述工作通道； 方式二， 如果所迷工作通道故障， 所述保护通道良好， 则切换保持 在所述保护通道； In the first mode, if the working channel is good, the switching is maintained in the working channel; and in the second mode, if the working channel is faulty, the protection channel is good, and the switching is maintained in the protection channel;
方式三， 如果所述工作通道故障， 所述保护通道故障， 则切换保持 在所述工作通道。 根据权利要求 1所述的方法， 其特征在于， 利用所述工作通道光检测点 和所述保护通道光检测点的告警信息和告警消失信息来确定所述工作通 道和所述保护通道的良好或故障状态的转变， 并利用所述业务信号检测 点的告警信息和告警消失信息对所述状态改变进行进一步的确认。 根据权利要求 2所述的方法， 其特征在于， 在所述工作通道良好， 切换 保持在所述工作通道的初始条件下， 所述方式二进一步包括如下步骤： 步驟 al ,如果所述业务信号检测点检测到信号故障，则说明所述工 作通道发生故障 , 所述接收设备向所述倒换控制器发送倒换触发消息； 步骤 bl , 所述倒换控制器发送命令报文给所述选择单板来执行保 护倒换操作， 由所述保护通道连接所述接收设备， 并同时启动一时间长 度为 T的计时器； In the third mode, if the working channel fails and the protection channel fails, the switching remains in the working channel. The method according to claim 1, wherein the working channel and the warning channel are determined to use the alarm information and the alarm disappearance information of the protection channel light detection point to determine whether the working channel and the protection channel are good or The transition of the fault state, and further confirming the state change by using the alarm information of the service signal detection point and the alarm disappearance information. The method according to claim 2, wherein, in the working channel is good, the switching is maintained under the initial condition of the working channel, and the second method further comprises the following steps: Step a1, if the service signal is detected If the signal is detected, the fault is detected, and the receiving device sends a switching trigger message to the switching controller. Step bl, the switching controller sends a command packet to the selected board to perform Protecting the switching operation, connecting the receiving device by the protection channel, and simultaneously starting a timer with a length of time T;
步骤 cl , 在计时器的时间 T内， 如果所述倒换控制器接收到所述 业务接收设备上报的告警消失消息， 则说明所述保护通道良好， 保持所 述保护通道的连接。 根据权利要求 3所述的方法， 其特征在于， 在所述工作通道良好， 切换 保持在所述工作通道的初始条件下，所述方式三为在所述步骤 cl中进一 步包括： 在计时器的时间 T内， 如果所述倒换控制器没有接收到所述业 δ
务接收设备上报的告警消失消息， 则说明所述保护通道也发生了故障， 则执行恢复操作， 重新保持所迷工作通道的连接。 根据权利要求 2所述的方法， 其特征在于， 在所述工作通道和所迷保护 通道均发生故障， 切换保持在所述工作通道的初始条件下， 所述方式一 包括： 如果所述倒换控制器接收到所述业务信号检测点检测到的告警消 失信号， 则说明所述工作通道的状态改为良好， 继续保持所述工作通道 的连接。 根据权利要求 5所述的方法， 其特征在于， 在所述工作通道和所述保护 通道均发生故障， 切换保持在所述工作通道的初始条件下， 所述方式二 包括： Step cl, in the time T of the timer, if the switching controller receives the alarm disappearing message reported by the service receiving device, the protection channel is good, and the connection of the protection channel is maintained. The method according to claim 3, wherein, in the working channel is good, the switching is maintained under the initial condition of the working channel, and the third mode is further included in the step cl: Within time T, if the switching controller does not receive the industry δ When the alarm disappearing message reported by the receiving device indicates that the protection channel has also failed, the recovery operation is performed to re-establish the connection of the working channel. The method according to claim 2, wherein both the working channel and the protected channel fail, and the switching is maintained under the initial condition of the working channel, and the manner 1 includes: if the switching control Receiving the alarm disappearing signal detected by the service signal detection point, the state of the working channel is changed to be good, and the connection of the working channel is continued. The method according to claim 5, wherein the working channel and the protection channel both fail, and the switching is maintained under the initial condition of the working channel, and the second method comprises:
步骤 a2,在所述倒换控 '制器没有接收到所述业务信号检测点检测到 的告警消失信号的前提下， 如果所述倒换控制器接收到所述保护通道光 检测点上报的告警消失消息， 则说明所述保护通道的状态改为良好； 步骤 b2, 所述倒换控制器发送命令报文给所述选择单板来执行保 护倒换操作， 由所述保护通道连接所述接收设备， 并同时启动一时间长 度为 T的计时器； In step a2, if the switching controller does not receive the alarm disappearing signal detected by the service signal detecting point, if the switching controller receives the alarm disappearing message reported by the protection channel light detecting point , the state of the protection channel is changed to be good; in step b2, the switching controller sends a command message to the selection board to perform a protection switching operation, and the protection channel is connected to the receiving device, and simultaneously Start a timer of length T;
步骤 c2, 在计时器的时间 T内， 如果所述倒换控制器接收到所述 业务接收设备上报的告警消失消息， 则说明所述保护通道良好， 保持所 述保护通道的连接。 根据权利要求 6所述的方法.， 其特征在于， 在所述工作通道和所述保护 通道均发生故障， 切换保持在所述工作通道的初始条件下， 所述方式三 为在所述步骤 c2中进一步包括： 在计时器的时间 T内，如果所述倒换控 制器没有接收到所述业务接收设备上报的告警消失消息， 则说明所述保 护通道还是故障， 则执行恢复操作， 重新保持所述工作通道的连接。 根据权利要求 2所述的方法， 其特征在于， 在所述工作通道故障， 所述 保护通道良好， 切换保持在所述保护通道的初始条件下， 所述方式三包 括： 如果所述倒换控制器接收到所述保护通道光检测点上报的告警产生 消息 , 则所述倒换控制器发送命令报文给所述选择单板执行倒换恢复操 作， 恢复到所述工作通道的连接。
Step c2, in the time T of the timer, if the switching controller receives the alarm disappearing message reported by the service receiving device, the protection channel is good, and the connection of the protection channel is maintained. The method according to claim 6, wherein both the working channel and the protection channel fail, and the switching is maintained under the initial condition of the working channel, and the third mode is in the step c2 The method further includes: during the time T of the timer, if the switching controller does not receive the alarm disappearing message reported by the service receiving device, indicating that the protection channel is still faulty, performing a recovery operation, re-maintaining the The connection of the working channel. The method according to claim 2, wherein, in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the third manner includes: if the switching controller Receiving the alarm generation message reported by the protection channel optical detection point, the switching controller sends a command message to the selection board to perform a switching recovery operation, and restores the connection to the working channel.
9. 根据权利要求 8所述的方法， 其特征在于， 在所述工作通道故障， 所述 保护通道良好， 切换保持在所述保护通道的初始条件下， 所述方式一包 括： The method according to claim 8, wherein in the working channel failure, the protection channel is good, and the switching is maintained under the initial condition of the protection channel, and the manner includes:
步骤 a3，在所述倒换控制器没有接收到所述业务信号检测点检测到 的告警产生消息的前提下， 如果所述倒换控制器接收到所述工作通道光 检测点上报的告警消失消息， 则说明所述工作通道的状态改为良好； 步骤 b3 , 所述倒换控制器发送命令报文给所述选择单板来执行保 护恢复操作， 由所述工作通道连接所迷接收设备， 并同时启动一时间长 度为 T的计时器； In step a3, if the switch controller does not receive the alarm generation message detected by the service signal detection point, if the switch controller receives the alarm disappear message reported by the work channel light detection point, The state of the working channel is changed to be good; in step b3, the switching controller sends a command message to the selected board to perform a protection recovery operation, and the working channel is connected to the receiving device, and simultaneously starts a a timer of length T;
步骤 c3 , 在计时器的时间 T 内， 如果所述倒换控制器接收到所述 业务接收设备上报的告警消失消息， 则确认所述工作通道良好， 保持所 述工作通道的连接。 Step c3, in the time T of the timer, if the switching controller receives the alarm disappearing message reported by the service receiving device, it is confirmed that the working channel is good, and the connection of the working channel is maintained.
10. 根据权利要求 9所述的方法， 其特征在于， 在所述工作通道故障， 所述 保护通道良好， 切换保持在所述保护通道的初始条件下， 所述方式二为 在所述步 c3中进一步包括：在计时器的时间 T内，如果所述倒换控制 器没有接收到所述业务接收设备上报的告警消失消息 , 则所述工作通道 仍然故障， 所述倒换控制器控制所述选择单板执行倒换操作， 倒换到所 述保护通道并保持所述保护通道的连接。 10. The method according to claim 9, wherein in the working channel failure, the protection channel is good, the switching is maintained under the initial condition of the protection channel, and the second mode is in the step c3 The working channel further fails when the switching controller does not receive the alarm disappearing message reported by the service receiving device, and the switching controller controls the selection list. The board performs a switching operation, switching to the protection channel and maintaining the connection of the protection channel.
11. 根据权利要求 3至 10中任意一项权利要求所述的方法， 其特征在于， 所 述时间 T的长度大于或等于所述选择单板执行倒换所需的最大时间和所 述接收设备检测确认告警消失所需的最大时间之和。 The method according to any one of claims 3 to 10, wherein the length of the time T is greater than or equal to a maximum time required for the selected board to perform switching and the receiving device detects The sum of the maximum time required to confirm the disappearance of the alarm.
12. 一种在接收设备共享配置下的光网络保护触发装置， 其特征在于， 包括 选择单板、 业务接收设备和自动保护倒换控制器； An optical network protection triggering device in a receiving device sharing configuration, comprising: selecting a board, a service receiving device, and an automatic protection switching controller;
所述选择单板将工作通道或保护通道连接到所述接收设备； 所述倒换控制器用于： 根据工作通道光检测点、保护通道光检测点 和所述接收设备的业务信号检测点的检测结果 , 判断所述工作通道和保 护通道是否发生故障， 并控制所述选择单板遵照如下方式进行切换： 如 果所述工作通道良好， 则切换保持在所述工作通道； 如果所述工作通道 故障， 所述保护通道良好， 则切换保持在所述保护通道； 如果所述工作 通道故障， 所述保护通道故障， 则切换保持在所述工作通道。
The selection board connects the working channel or the protection channel to the receiving device; the switching controller is configured to: detect a detection result according to the working channel light detection point, the protection channel light detection point, and the service signal detection point of the receiving device Determining whether the working channel and the protection channel are faulty, and controlling the selection board to switch according to the following manner: if the working channel is good, the switching remains in the working channel; if the working channel is faulty, If the protection channel is good, the switch remains in the protection channel; if the working channel fails, the protection channel fails, and the switch remains in the working channel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610089335.0 | 2006-06-20 | ||
| CN200610089335A CN1874201B (en) | 2006-06-20 | 2006-06-20 | Method and equipment for triggering protection of optical network under shared configuration of receiving devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008000120A1 true WO2008000120A1 (en) | 2008-01-03 |
Family
ID=37484495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2006/003785 WO2008000120A1 (en) | 2006-06-20 | 2006-12-30 | A method and device for triggering the optical network protection under the configuration of sharing the receiving apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1874201B (en) |
| WO (1) | WO2008000120A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664702A (en) * | 2012-04-05 | 2012-09-12 | 烽火通信科技股份有限公司 | Protection mode of cross disc of M to N |
| CN106533543A (en) * | 2016-11-22 | 2017-03-22 | 中国南方电网有限责任公司 | Low-rate optical signal protection device and protection method |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101383635B (en) * | 2007-09-06 | 2013-04-17 | 华为技术有限公司 | Inter-plate channel protection method and device |
| CN101567800A (en) | 2008-04-22 | 2009-10-28 | 华为技术有限公司 | Method and system for protection switching decision and method and system for performance monitoring |
| CN101626272B (en) * | 2008-07-10 | 2013-03-20 | 中兴通讯股份有限公司 | Method for realizing error connection prevention in optical network |
| CN101790110B (en) | 2009-01-22 | 2012-12-19 | 中兴通讯股份有限公司 | Device and method for coordinating and recovering automatic protection switching operation |
| CN101883295B (en) * | 2009-05-06 | 2014-04-30 | 华为技术有限公司 | Service transmission processing methods, node equipment and network system |
| CN101577845B (en) | 2009-06-01 | 2012-11-14 | 中兴通讯股份有限公司 | Method and device for processing switching control command |
| CN101605282B (en) * | 2009-06-26 | 2012-07-04 | 中兴通讯股份有限公司 | System, method and device for protecting optical network |
| CN101848034B (en) * | 2010-05-05 | 2014-12-17 | 中兴通讯股份有限公司 | Optical path protecting device and method |
| CN101989927A (en) * | 2010-10-20 | 2011-03-23 | 华为技术有限公司 | Method, device and equipment for processing redundancy inversion |
| CN102761794B (en) * | 2012-07-09 | 2018-06-01 | 中兴通讯股份有限公司 | Photosphere passage 1+1 protection service establishing method and device |
| WO2014085982A1 (en) * | 2012-12-04 | 2014-06-12 | 华为技术有限公司 | Processing method for controlling protection switching range on optical transport network and protection apparatus |
| CN103441793B (en) * | 2013-08-30 | 2017-01-25 | 上海斐讯数据通信技术有限公司 | Method for realizing reliable communication between optical links |
| CN107479996B (en) * | 2017-07-11 | 2020-09-18 | 深圳市恒扬数据股份有限公司 | Light-off protection circuit of optical transmission equipment and light-off protection method thereof |
| CN115694617A (en) * | 2021-07-28 | 2023-02-03 | 中兴通讯股份有限公司 | Protection switching method and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004040726A (en) * | 2002-07-08 | 2004-02-05 | Mitsubishi Electric Corp | Optical cross connect apparatus |
| US20040114922A1 (en) * | 2002-12-16 | 2004-06-17 | Hardee Kevin M. | Signaling protocol and architecture for protection rings |
| US20050141892A1 (en) * | 2003-12-31 | 2005-06-30 | Sung-Bum Park | Wavelength-division multiplexed self-healing passive optical network |
| CN1684381A (en) * | 2004-04-14 | 2005-10-19 | 华为技术有限公司 | Realizing method and device for optical path shared protection in wave division complex system |
| CN1731555A (en) * | 2004-08-05 | 2006-02-08 | 三星Sdi株式会社 | Plasma display panel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505283A (en) * | 2002-11-29 | 2004-06-16 | 上海叶鑫贸易有限公司 | Optical fiber communication network protection system |
| CN1300966C (en) * | 2003-04-09 | 2007-02-14 | 华为技术有限公司 | Channel protection method ketween plates in wavelength division multiplexing system |
-
2006
- 2006-06-20 CN CN200610089335A patent/CN1874201B/en active Active
- 2006-12-30 WO PCT/CN2006/003785 patent/WO2008000120A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004040726A (en) * | 2002-07-08 | 2004-02-05 | Mitsubishi Electric Corp | Optical cross connect apparatus |
| US20040114922A1 (en) * | 2002-12-16 | 2004-06-17 | Hardee Kevin M. | Signaling protocol and architecture for protection rings |
| US20050141892A1 (en) * | 2003-12-31 | 2005-06-30 | Sung-Bum Park | Wavelength-division multiplexed self-healing passive optical network |
| CN1684381A (en) * | 2004-04-14 | 2005-10-19 | 华为技术有限公司 | Realizing method and device for optical path shared protection in wave division complex system |
| CN1731555A (en) * | 2004-08-05 | 2006-02-08 | 三星Sdi株式会社 | Plasma display panel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664702A (en) * | 2012-04-05 | 2012-09-12 | 烽火通信科技股份有限公司 | Protection mode of cross disc of M to N |
| CN102664702B (en) * | 2012-04-05 | 2014-12-03 | 烽火通信科技股份有限公司 | Protection mode of cross disc of M to N |
| CN106533543A (en) * | 2016-11-22 | 2017-03-22 | 中国南方电网有限责任公司 | Low-rate optical signal protection device and protection method |
| CN106533543B (en) * | 2016-11-22 | 2023-11-10 | 中国南方电网有限责任公司 | Low-rate optical signal protection device and protection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1874201B (en) | 2010-05-12 |
| CN1874201A (en) | 2006-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2008000120A1 (en) | A method and device for triggering the optical network protection under the configuration of sharing the receiving apparatus | |
| KR100696176B1 (en) | Apparatus and method for MPLS LSP protection switching | |
| GB2444170A (en) | Ethernet protection using a redundant link, with link up of a remote port being triggered using a "link status control mechanism". | |
| WO2015131360A1 (en) | Method, device and system for link switching | |
| WO2012065435A1 (en) | Path switch-back method and apparatus in transport network | |
| KR20100015508A (en) | Protecting system and method for passive optical network | |
| WO2011026319A1 (en) | Ring network protection method based on local fault detection and system thereof | |
| WO2011095101A1 (en) | Linear 1: n protection method, device and system for packet transport network | |
| WO2010022647A1 (en) | Optical network system, optical network device and its switching method | |
| CN113645312B (en) | Sub-ring network link protection method and device based on ERPS protocol | |
| CN107431655B (en) | Method and apparatus for fault propagation in segment protection | |
| JP2010130267A (en) | Transmission apparatus | |
| US20120195186A1 (en) | Method and system for preventing traffic loss caused by wait-to-restore mechanisms in service protection networks | |
| WO2010133065A1 (en) | Protection system and method based on the passive optical network | |
| JP2011091657A (en) | Optical transmission system | |
| JP3908632B2 (en) | Line switching system and method | |
| JP2006222632A (en) | Linking system of optical cross-connection unit and transmission unit | |
| JP2005027144A (en) | Signal switching device and transmission system using same | |
| CN101599853A (en) | A kind of Ethernet dual homed connects the implementation method of irrevocable pattern in the protection | |
| WO2006075403A1 (en) | Transmitter and fault reporting method | |
| WO2005064829A1 (en) | Channel protection method between boards in wave division multiplex system | |
| WO2008064585A1 (en) | A method, system and resilient packet ring device for avoiding loop after fault recovery | |
| WO2006017962A1 (en) | Method to protect human eyes in optical communication system | |
| RU2667806C2 (en) | Pseudo-wire (pw) dual-homing protection switching method and system | |
| JP4755674B2 (en) | Signal switching device and transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 06840815 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| NENP | Non-entry into the national phase |
Ref country code: RU |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 06840815 Country of ref document: EP Kind code of ref document: A1 |