WO2012152050A1 - 一种光网络通道检测的方法及装置 - Google Patents
一种光网络通道检测的方法及装置 Download PDFInfo
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- WO2012152050A1 WO2012152050A1 PCT/CN2011/085167 CN2011085167W WO2012152050A1 WO 2012152050 A1 WO2012152050 A1 WO 2012152050A1 CN 2011085167 W CN2011085167 W CN 2011085167W WO 2012152050 A1 WO2012152050 A1 WO 2012152050A1
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0773—Network aspects, e.g. central monitoring of transmission parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
- H04J14/0272—Transmission of OAMP information
- H04J14/0275—Transmission of OAMP information using an optical service channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
- H04J14/0272—Transmission of OAMP information
- H04J14/0276—Transmission of OAMP information using pilot tones
Definitions
- the present invention relates to the field of optical network communications, and more particularly to a method and apparatus for optical network channel detection. Background technique
- WDM Wavelength Division Multiplexing
- a large number of optical fiber interconnections and dense wavelength multiplexing in optical networks bring great pressure to the transmission, exchange and management of optical networks, especially the management and maintenance work is increasing, and the control, management and maintenance capabilities of optical network transmission systems are improved. Reducing operation and maintenance costs has become the consensus of the industry.
- the optical signals in the optical network are transmitted in the form of multiplexed frames.
- the traditional optical network loads a lot of monitoring information through the management and maintenance bytes in the multiplexed frames.
- This technology greatly enhances the maintenance and management capabilities of optical network transmission systems.
- the intermediate node detects the channel in the optical network, the optical signal needs to be converted into an electrical signal, and the conversion processing cost is high, the signal transmission speed is slow, and the use efficiency of the optical network is reduced, Rickets. Summary of the invention
- the main purpose of the present invention is to provide a method and device for detecting optical network channels, which can quickly detect the location of errors in the channel, improve the detection rate of the optical network, and achieve simple implementation, simplify device structure, and improve processing capability of the device. .
- the technical solution of the present invention is achieved as follows:
- the invention provides a method for detecting an optical network channel, the method comprising: the upstream node turning on a peaking comparison function, and transmitting the set additional information as modulation additional information and control additional information to a downstream node; the downstream node receiving modulation Additional information and control additional information and comparison, generate a report based on the comparison results, and send it to the management system.
- the opening and adjusting the comparison function comprises: the upstream node determines that the topping comparison function is not turned on, turns on the topping comparison function, and sends a turn-on comparison function command to the downstream node.
- the sending the additional information, as the modulation additional information and the control additional information, to the downstream node includes: adding the additional information as control additional information to the downstream node through the control channel; using the additional information as the modulation additional information, Modulated to the optical wavelength signal, sent to the downstream node through the wavelength channel.
- the downstream node receives the modulation additional information and controls the additional information and compares and includes: receiving the control additional information sent by the control channel, determining that the leveling comparison function is enabled, scanning and modulating the additional information queue; or receiving the wavelength channel transmission
- the optical wavelength signal is demodulated to obtain modulation additional information, it is determined that the top contrast function is turned on, and the scan control additional information queue; the modulation additional information is compared with the control additional information.
- the method further includes: the downstream node adds a time identifier to the received modulation additional information and the control additional information, and modulates the additional information queue or the modulated additional information or the control additional information that is saved in the additional information queue and exceeds the preset time. delete.
- the present invention also provides an apparatus for optical network channel detection, the apparatus comprising: a control plane, a roofing recognition subsystem, and a transmission plane;
- the control plane is used to initiate the top recognition function, and send the set additional information to the top recognition subsystem; receive the report sent by the top recognition subsystem, and send the report to the management system; the top recognition subsystem is located upstream At the time of the node, the additional information sent by the control plane is sent to the downstream node as control additional information; the additional information is used as modulation additional information. When it is located at the downstream node, it is used to obtain the control additional information sent by the upstream node and the modulation additional information sent by the demodulation transmission plane, and compare and generate a report according to the comparison result, and send it to the control plane;
- the transmission plane when located at the upstream node, is used to send the modulation additional information sent by the topology recognition subsystem to the downstream node; when located at the downstream node, it is used to forward the received modulation additional information to the topology recognition subsystem.
- the topping identification subsystem further includes: an extended signaling module, configured to receive an open top contrast function command sent by the control plane, determine that the top contrast function is not turned on, and turn on the top contrast function, which will be turned on.
- the top contrast function command is sent to the downstream node;
- control plane is specifically configured to send an open top contrast function command to the extended signaling module.
- the topping identification subsystem further includes: a modem module, configured to transmit additional information sent by the control plane as modulation additional information to the optical wavelength signal, and send the signal to the downstream.
- the additional information is used as control additional information, and is sent to the extended signaling module of the downstream node by using the control channel; and the additional information is sent to the modem module. .
- the topping identification subsystem further includes: a comparison module, configured to receive control additional information sent by the extended signaling module, scan and modulate the additional information queue; or receive modulation additional information, and scan and control the additional information queue; And compare the control additional information with the modulation additional information;
- the extended signaling module when the extended signaling module is located at the downstream node, it is specifically configured to: receive control additional information sent by the upstream node, determine that the aligning comparison function is enabled, send the control additional information to the comparison module, or receive the modulation.
- the demodulation agent module queries the notification that the top adjustment function is enabled, and the query adjustment function is enabled, and the modem function module is notified; the modulation and demodulation generation
- the processing module is located at the downstream node, and is specifically configured to: demodulate the modulated additional information from the optical wavelength signal received by the transmission plane in the downstream node, and query the aligning comparison function by using the extended signaling module, and send the modulated additional information to a comparison module; a comparison module, configured to receive control additional information, scan and modulate the additional information queue; or, receive modulation additional information, scan control additional information queue; and compare the control additional information with the modulation additional information.
- the comparing module is further configured to add a time identifier to the received modulation additional information or the control additional information, and the modulation additional information queue or the control additional information may be added to the modulation additional information or the control additional time that exceeds the preset time. Information is deleted.
- the detection method and device can check the wavelength channel by comparing the control additional information transmitted by the control channel and the modulation additional information transmitted by the wavelength channel, and can quickly detect without photoelectric conversion.
- the wrong location of the channel improves the detection rate of the optical network, and the implementation is simple, the device structure is simplified, and the processing capability of the device is improved.
- FIG. 1 is a schematic flowchart of an embodiment of a method for implementing optical network channel detection according to the present invention
- FIG. 2 is a schematic structural diagram of an apparatus for implementing optical network channel detection according to the present invention. detailed description
- optical tags Some leading research institutes and equipment manufacturers attempt to maintain the efficiency of all-optical transmission by using optical tags, optical domes, and optical signals in optical networks, while preserving the management and maintenance capabilities of optical transmission.
- the light-tune technology uses various modulation techniques to superimpose a small amplitude of a low-frequency sine wave on the optical wavelength signal as a marker.
- the system can use the low frequency signal to load various maintenance information and identification information, and each relay terminal can extract additional information without photoelectric conversion, thereby realizing the monitoring and maintenance of the wavelength channel.
- Channel detection in optical networks can be performed with this technology.
- the upstream node turns on the top contrast function, and the additional letter to be set
- the information is sent to the downstream node as modulation additional information and control additional information; the downstream node receives the modulation additional information and controls the additional information and compares them, generates a report according to the comparison result, and sends the report to the management system.
- a method for detecting optical network channels as shown in FIG. 1, the specific steps are as follows:
- Step 101 The upstream node turns on the aligning comparison function, and sends the set additional information as modulation additional information and control additional information to the downstream node.
- the upstream node turns on its own leveling comparison function, and sends a command to turn on the topping comparison function to the downstream node, and the downstream node turns on its own leveling comparison function.
- the upstream node determines that the wavelength service connection with the downstream node is established or works properly, and sets additional information.
- the opening includes: a node, including an upstream node and a downstream node, determining that the topping comparison function is not enabled, and then turning on the topping comparison function, the specific process includes: reading a topping state identifier of the channel to be detected, if the identifier If the status is on, the tempo comparison function is enabled, and no other processing is required. If the identifier status is off, the tempo comparison function is not enabled, and the identifier status is changed to on; wherein the channel to be detected can be Set as needed.
- the determining that the wavelength service connection with the downstream node is established or working normally includes: the upstream node sends the connection establishment signaling to the downstream node, and after receiving the connection established by the downstream node, the signaling is established, indicating that the wavelength service connection is established or working normally. ;
- the setting additional information includes: the upstream node acquires information of a node name, a link, a port, and the like of the downstream node, and then forms additional information with a service connection identifier randomly generated according to the preset identifier policy.
- the obtaining includes: the upstream node reads the node name, the link, the port, the service connection identifier, and the like of the downstream node from the network management system, or the upstream node obtains the node name and link of the downstream node according to the allocation of the control plane.
- the information of the port, the service connection identifier, and the like; the identifier policy may adopt any method, as long as the generated service connection identifier is not repeated; the service connection identifier is used to identify the service transmitted between the nodes.
- the sending the additional information as the modulation additional information and the control additional information to the downstream node includes: the upstream node sends the additional information to the downstream node through the control channel, and the additional information sent through the control channel is called the control additional information.
- the sending may be sent by an object carried by the extended signaling protocol, for example, by using a ResvConf extended message object based on the Traffic Engineering Extension (RS VP-TE, Reservation Protocol-Traffic Engineering) to carry the service connection in the control additional information.
- RS VP-TE Traffic Engineering Extension
- Reservation Protocol-Traffic Engineering Reservation Protocol-Traffic Engineering
- the upstream node modulates the additional information onto the optical wavelength signal, transmits it to the downstream node through the wavelength channel, and the additional information transmitted through the wavelength channel is called modulation additional information.
- the sending may be sent periodically according to the set period, or after the service connection is successfully established.
- Step 102 The downstream node receives the control additional information and modulates the additional information, and determines whether the two are the same. If they are the same, go to step 104; otherwise, go to step 103.
- the downstream node receives the optical wavelength signal transmitted by the wavelength channel, and obtains modulation additional information after demodulation, determines that the top adjustment function is enabled, and scans and controls the additional information queue; and determines that the top contrast function is not turned on, generating a no-recognition report, indicating that the channel does not need to be Detection, sent to the upstream node, back to the source node, sent to the management system, and discarded the received modulation additional information;
- the determining that the top adjustment function has been enabled includes: reading a top state identifier of a channel to be detected in the node, and if the status of the identifier is on, the top contrast function is turned on; otherwise, it is not turned on;
- the scan control additional information queue is: reading control additional information queue, determining whether there is control additional information matching the modulation additional information in the control additional information queue, if not, adding the modulation additional information to the modulation additional information queue, if any , comparing the modulated additional information with the control additional information;
- the channel to be detected may be set as needed; and the control additional information in the additional information queue that matches the modulation additional information includes: if any information supporting the additional information in the additional information queue is controlled The corresponding information in the modulation additional information is the same, Then, the control additional information is matched with the modulation additional information; for example, if the service connection identifier in the control additional information is the same as the service connection identifier in the modulation additional information, the control additional information matches the modulation additional information;
- the comparing the modulation additional information with the control additional information comprises: determining, in the modulation additional information and the control additional information, information other than the information at the time of matching, comparing, if the information is the same, determining the modulation additional information and the control additional information The same, otherwise, the modulation additional information is different from the control additional information. (You can also use node + port matching to compare other information.) Or, the downstream node receives the control additional information sent by the control channel, determines that the tilting comparison function is enabled, scans the modulated additional information queue, and determines that the tilting comparison function is not turned on. Then generating an identification-free report, sending it to the upstream node, backtracking to the source node, sending it to the management system, and discarding the received control additional information;
- the scan modulation additional information queue is: reading a modulation additional information queue, determining whether there is modulation additional information matching the control additional information in the modulation additional information queue, and if not, adding the control additional information to the control additional information queue If yes, the modulation additional information is compared with the control additional information; the process of determining that the top adjustment function has been turned on and the obtaining the modulation additional information are the same as the process of determining that the top adjustment function is turned on, and is not described herein again; Determining whether the modulation additional information queue has the modulation additional information matching the control additional information is the same as the process of determining whether the control additional information queue has the control additional information matching the modulation additional information, and the downstream node determines the modulation additional information and the control additional information. If they are the same, if the two are the same, go to step 104; otherwise, go to step 103. At the same time, the compared modulation additional information and control additional information are deleted.
- the downstream node adds the time identification to the received modulation additional information and the control additional information, and if the modulation additional information queue or the control additional information stored in the additional information queue is controlled to exceed the preset time, the modulation is added. Information or control to remove additional information, Avoid modulating additional information or controlling the accumulation of additional information.
- Step 103 The downstream node generates an error report, sends it to the upstream node, and ends the processing flow.
- the modulation additional information is different from the control additional information, indicating that there is a problem in the channel, sending an error report to the upstream node, and after receiving the error report, the upstream node sends the error report to the source node; the source node sends the error report to the management system.
- the source node stops the information transmission of the wavelength channel, preventing the erroneous data from being sent to the next node.
- the error report includes the current node, that is, the node name, link, port, service connection identifier, and the like of the downstream node in the additional information.
- Step 104 The downstream node generates a normal report and sends it to the upstream node.
- the modulation additional information is the same as the control additional information, indicating that the channel is normal, and sends a normal report to the upstream node.
- the upstream node After receiving the normal report, the upstream node sends the normal report to the source node, and the source node sends the information to the management system; then the downstream node acts as the upstream node.
- the command to enable the top-of-the-box comparison function is sent to the corresponding downstream node, and the subsequent operations are the same as steps 101 to 104 until the sink node.
- the source node is the starting point of the service in the network
- the sink node is the ending point of the service.
- the present invention further provides an apparatus for detecting an optical network channel, a node located in the optical network, as shown in FIG. 2, the apparatus includes: a control plane 201, a topping identification subsystem 202, and a transmission plane 203; among them,
- the control plane 201 is configured to enable the top contrast function, set additional information, send the additional information to the top recognition subsystem 202, and receive the report of the top recognition subsystem 202, and send the report to the management system;
- the topping identification subsystem 202 when located at the upstream node, transmits additional information sent by the control plane 201 as control additional information to the downstream node, and transmits the additional information as modulation additional information to the transmission plane 203; when located at the downstream node And used to obtain the control additional information sent by the upstream node and the modulation additional information sent by the demodulation transmission plane 203, and compare and generate a report according to the comparison result, and send it to the control plane 201;
- the transmission plane 203 when located at the upstream node, is used to send the modulation additional information sent by the topology recognition subsystem 202 to the transmission plane 203 of the downstream node; when located at the downstream node, it is used to forward the received modulation additional information to the topology Identification subsystem 202.
- the topping identification subsystem 202 further includes: an extended signaling module 2021;
- the control plane 201 is specifically configured to send an open top contrast function command to the extended signaling module 2021.
- the extended signaling module 2021 is configured to receive an open top contrast function command sent by the control plane 201, determine that the top contrast function is not enabled, and enable the top contrast function; and simultaneously send the open top contrast function command to the downstream node. Extended signaling module 2021;
- the determining the top contrast function is not enabled, and the turning on the top contrast function includes: reading the top state identifier of the channel to be detected, and if the identifier status is on, no other processing is required, if the identifier status To turn off, change its state to On; the channel to be detected can be set as needed.
- the topology recognition subsystem 202 further includes: a modem module 2022;
- the extended signaling module 2021 when located at the upstream node, is further configured to use the additional information sent by the control plane 201 as control additional information, and send the control signaling channel to the extended signaling module 2021 of the downstream node, where the sending may be extended signaling.
- the protocol carrying object sends the additional information to the modem agent module 2022;
- the modem agent module 2022 is configured to modulate the additional information sent by the received extension signaling module 2021 as modulation additional information onto the optical wavelength signal and generate it to the transmission plane 203.
- the topping recognition subsystem 202 further includes: a comparison module 2023;
- the extended signaling module 2021 is configured to receive the control additional information sent by the extended signaling module 2021 of the upstream node, determine that the aligning comparison function is enabled, and send the control additional information to the comparison module 2023. Otherwise, Discarding the control additional information, and generating a no-recognition report, occurs to the control plane 201; or receives a notification from the modem agent module 2022, Query whether the tempo comparison function is enabled. If the tempo comparison function is enabled, notify the modem agent module 2022. Otherwise, notify the modem function module 2022 that the tiling comparison function is not enabled, and generate an identification-free report, and send it to the control plane. 201; receiving the comparison result sent by the comparison module 2023, generating a report according to the comparison result, which occurs to the control plane 201;
- the modem module 2022 is specifically configured to: when located at the downstream node, demodulate the modulated additional information from the optical wavelength signal received by the transmission plane 203, and query the aligning comparison function by the extended signaling module 2021 to modulate the additional information.
- Sending to the comparison module 2023; otherwise, discarding the modulation additional information; the querying the extension comparison function by the extension signaling module 2021 has been started includes: demodulating the modulation additional information, notifying the extension signaling module 2021, and receiving the extended signaling The notification that the topping comparison function sent by the module 2021 is turned on;
- the comparison module 2023 is configured to receive the control additional information sent by the extended signaling module 2021 when the downstream node is located, and scan the modulated additional information queue; or receive the modulation additional information sent by the modem agent module 2022, and scan the additional information.
- the queue is obtained, and the comparison result is sent to the extended signaling module 2021, and the compared control additional information or modulation additional information is deleted.
- the comparison module 2023 is further configured to: add a time identifier to the received modulation additional information or the control additional information, and delete the modulation additional information or the control additional information in the modulated additional information queue or the control additional information queue for a preset time.
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Abstract
本发明公开了一种光网络通道检测的方法，该方法包括：上游节点开启调顶对比功能，将设置的附加信息，作为调制附加信息及控制附加信息发送给下游节点；下游节点接收调制附加信息及控制附加信息并对比，根据对比结果生成报告，发送给管理系统。本发明还公开了一种光网络通道检测的装置，采用本发明所述的方法及装置，快速检测通道发生错误的位置，提高光网络的检测速率，且实现简单，简化设备结构，提高设备的处理能力。
Description
一种光网络通道检测的方法及装置 技术领域
本发明涉及光网络通信领域， 特别是指一种光网络通道检测的方法及 装置。 背景技术
随着移动网络和互联网业务的飞速发展， 上层应用网络对基础承载网 络的带宽供给、 维护能力、 管理能力有了越来越高的需求。 近年来， 光网 络规模急剧膨胀， 网络系统广泛地部署到全球各个地方。 光波分复用
( WDM , Wavelength Division Multiplexing )技术作为光网络的核心技术之 一， 也应用到光网络的各个网络之间。 光网络中大量的光纤互联和密集的 波长复用给光网络的传输、 交换、 管理带来了巨大的压力， 特别是管理维 护工作日益巨大， 提高光网络传输系统的控制、 管理和维护能力， 降低运 维成本已经成为业界的共识。
光网络中的光信号以复用帧的形式传输， 传统的光网络在传输通道上， 通过复用帧中的管理、 维护字节加载了很多监控信息。 这种技术大大提升 了光网络传输系统的维护管理能力。 但是， 在传输过程中， 中间节点对光 网络中的通道进行检测时， 需要将光信号转换成电信号， 转换处理成本高、 信号传输速度较慢， 降低了光网络的使用效率， 为使用者所诟病。 发明内容
有鉴于此， 本发明的主要目的在于提供一种光网络通道检测的方法及 装置， 快速检测通道发生错误的位置， 提高光网络的检测速率， 且实现简 单， 简化设备结构， 提高设备的处理能力。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供了一种光网络通道检测的方法， 该方法包括： 上游节点开 启调顶对比功能， 将设置的附加信息， 作为调制附加信息及控制附加信息 发送给下游节点； 所述下游节点接收调制附加信息及控制附加信息并对比， 根据对比结果生成报告， 发送给管理系统。
上述方案中， 所述开启调顶对比功能包括： 上游节点确定调顶对比功 能未开启， 开启调顶对比功能， 并向下游节点发送开启调顶对比功能命令。
上述方案中， 所述将设置的附加信息， 作为调制附加信息及控制附加 信息发送给下游节点包括： 将附加信息作为控制附加信息， 通过控制通道 发送给下游节点； 将附加信息作为调制附加信息， 调制到光波长信号， 通 过波长通道发送给下游节点。
上述方案中， 所述下游节点接收调制附加信息及控制附加信息并对比 包括： 接收控制通道发送的控制附加信息， 确定调顶对比功能已开启， 扫 描调制附加信息队列； 或者， 接收波长通道传输的光波长信号， 解调后获 取调制附加信息， 确定调顶对比功能已开启， 扫描控制附加信息队列； 将 调制附加信息与控制附加信息对比。
上述方案中， 该方法进一步包括： 下游节点为接收的调制附加信息及 控制附加信息添加时间标识， 将调制附加信息队列或控制附加信息队列中 保存的超过预设时间的调制附加信息或控制附加信息删除。
本发明还提供了一种光网络通道检测的装置， 该装置包括： 控制平面、 调顶识别子系统以及传送平面； 其中，
控制平面， 用于启动调顶识别功能， 将设置的附加信息发送给调顶识 别子系统； 接收调顶识别子系统发来的报告， 将报告发送给管理系统； 调顶识别子系统， 位于上游节点时， 用于将控制平面发来的附加信息 作为控制附加信息， 发送给下游节点； 将附加信息作为调制附加信息， 发
送给传送平面； 位于下游节点时， 用于获取上游节点发来的控制附加信息 及解调传送平面发来的调制附加信息并对比， 根据对比结果生成报告， 发 送给控制平面；
传送平面， 位于上游节点时， 用于将调顶识别子系统发来的调制附加 信息发送给下游节点； 位于下游节点时， 用于将接收的调制附加信息转发 给调顶识别子系统。
上述方案中， 所述调顶识别子系统进一步包括： 扩展信令模块， 用于 接收控制平面发来的开启调顶对比功能命令， 确定调顶对比功能未开启， 开启调顶对比功能， 将开启调顶对比功能命令发送给下游节点；
相应的， 所述控制平面具体用于， 向扩展信令模块发送开启调顶对比 功能命令。
上述方案中， 所述调顶识别子系统进一步包括： 调制解调代理模块， 位于上游节点时， 用于将控制平面发来的附加信息作为调制附加信息， 调 制到光波长信号上， 发送给下游节点；
相应的， 所述扩展信令模块， 位于上游节点时， 具体用于， 将附加信 息作为控制附加信息， 通过控制通道发送给下游节点的扩展信令模块； 将 附加信息发送给调制解调代理模块。
上述方案中， 所述调顶识别子系统进一步包括： 对比模块， 用于接收 扩展信令模块发来的控制附加信息， 扫描调制附加信息队列； 或者， 接收 调制附加信息， 扫描控制附加信息队列； 并将控制附加信息和调制附加信 息进行对比；
相应的， 所述扩展信令模块， 位于下游节点时， 具体用于， 接收上游 节点发来的控制附加信息， 确定调顶对比功能已开启， 将控制附加信息发 送给对比模块； 或收到调制解调代理模块查询调顶对比功能是否开启的通 知， 查询调顶对比功能已开启， 通知调制解调代理模块； 所述调制解调代
理模块， 位于下游节点时， 具体用于， 从下游节点中传送平面接收的光波 长信号中解调出调制附加信息 , 通过扩展信令模块查询调顶对比功能已开 启， 将调制附加信息发送给对比模块； 对比模块， 用于接收控制附加信息， 扫描调制附加信息队列； 或者， 接收调制附加信息， 扫描控制附加信息队 列； 并将控制附加信息和调制附加信息进行对比。
上述方案中， 所述对比模块， 进一步用于在接收的调制附加信息或控 制附加信息上添加时间标识， 将调制附加信息队列或控制附加信息中保存 时间超过预设时间的调制附加信息或控制附加信息删除。
由此可见， 采用本发明所述的检测方法及装置， 通过控制通道传输的 控制附加信息及波长通道传送的调制附加信息的对比 , 对波长通道进行检 查， 不需进行光电转换， 便能够快速检测通道发生错误的位置， 提高光网 络的检测速率， 且实现简单， 简化设备结构， 提高设备的处理能力。 附图说明
图 1为本发明实现光网络通道检测的方法实施例流程示意图； 图 2为本发明实现光网络通道检测的装置实施例组成示意图。 具体实施方式
一些领先的研究机构、 设备制造商尝试在光网络中采用光标签、 光调 顶、 光随路信号等技术来保持全光传输的效率， 同时保留光传输的管理、 维护能力。
光调顶技术利用各种调制技术， 在光波长信号上叠加一小幅度的低频 正弦波作为标识。 系统可以利用低频信号加载各种维护信息和标识信息， 各中继端无需光电转换即可提取附加的信息， 从而实现波长通道的监控和 维护。 可以借助这一技术， 进行光网络中的通道检测。
本发明的基本思想是： 上游节点开启调顶对比功能， 将设置的附加信
息作为调制附加信息及控制附加信息发送给下游节点； 下游节点接收调制 附加信息及控制附加信息并对比， 根据对比结果产生报告， 发送给管理系 统。
下面通过具体实施例与附图来对本发明进行详细说明。
一种光网络通道检测的方法， 如图 1所示， 具体步驟如下：
步驟 101 : 上游节点开启调顶对比功能， 将设置的附加信息作为调制附 加信息及控制附加信息， 发送给下游节点。
具体的， 上游节点开启自身的调顶对比功能， 并将开启调顶对比功能 的命令下发给下游节点， 下游节点开启自身的调顶对比功能。 上游节点确 定与下游节点的波长业务连接建立或者工作正常， 设置附加信息。
所述开启包括： 节点， 包括上游节点及下游节点， 确定调顶对比功能 未开启， 则开启调顶对比功能， 具体过程包括： 读取需要检测的通道的调 顶状态标识符， 若标识符的状态为开启， 则调顶对比功能已开启， 不需要 进行其他处理， 若标识符状态为关闭， 则调顶对比功能未开启， 将标识符 状态修改为开启； 其中， 所述需要检测的通道可根据需要设定。
所述确定与下游节点的波长业务连接建立或者工作正常包括： 上游节 点将连接建立的信令发送给下游节点， 收到下游节点返回的连接已建立信 令， 则说明波长业务连接建立或者工作正常；
所述设置附加信息包括： 上游节点获取下游节点的节点名称、 链路、 端口等信息， 然后与根据预置的标识符策略随机生成的业务连接标识符， 组成附加信息。 所述获取包括： 上游节点从网管系统读取下游节点的节点 名称、 链路、 端口、 业务连接标识符等信息， 或者， 上游节点根据自身控 制平面分配， 获取下游节点的节点名称、 链路、 端口、 业务连接标识符等 信息； 所述标识符策略可以采用任意方法， 只要保证生成的业务连接标识 符不重复即可； 所述业务连接标识符用于标识节点之间传输的业务。
所述将设置的附加信息作为调制附加信息及控制附加信息， 发送给下 游节点包括： 上游节点将附加信息通过控制通道发送给下游节点， 通过控 制通道发送的附加信息称之为控制附加信息 , 所述发送可以通过扩展信令 协议携带的对象发送， 例如， 通过基于流量工程扩展的资源预留协议 ( RS VP-TE , Reservation Protocol-Traffic Engineering ) 的 ResvConf扩展消 息对象携带控制附加信息中的业务连接标识符、 节点名称、 链路以及端口 等信息。 另一方面， 上游节点将附加信息调制到光波长信号上， 通过波长 通道发送给下游节点， 通过波长通道传输的附加信息称之为调制附加信息。 所述发送可以是根据设置的周期， 周期性发送或者在业务连接建立成功后 发送。
步驟 102: 下游节点接收控制附加信息及调制附加信息， 并判断两者是 否相同， 若相同， 执行步驟 104; 否则执行步驟 103。
下游节点接收波长通道传输的光波长信号 , 解调后获取调制附加信息 , 确定调顶对比功能已开启， 扫描控制附加信息队列； 确定调顶对比功能未 开启， 则生成无需识别报告， 说明通道无需检测， 发送给上游节点， 回溯 至源节点， 发送给管理系统， 同时将收到的调制附加信息丟弃；
所述确定调顶对比功能已开启包括： 读取本节点中需检测的通道的调 顶状态标识符， 若标识符的状态为开启， 则调顶对比功能已开启， 否则， 为未开启； 所述扫描控制附加信息队列为： 读取控制附加信息队列， 判断 控制附加信息队列中是否有与调制附加信息匹配的控制附加信息， 若没有， 则将调制附加信息添加到调制附加信息队列， 若有， 则将调制附加信息与 控制附加信息对比；
其中， 所述需检测的通道可根据需要设定； 所述判断控制附加信息队 列中是否有与调制附加信息匹配的控制附加信息包括： 若控制附加信息队 列中有控制附加信息的任意一个信息与调制附加信息中的相应信息相同，
则有控制附加信息与调制附加信息匹配； 例如， 若控制附加信息中的业务 连接标识符与调制附加信息中的业务连接标识符相同， 则控制附加信息与 调制附加信息匹配；
所述将调制附加信息与控制附加信息对比包括： 将调制附加信息与控 制附加信息中， 确定匹配时的信息以外的信息， ——比较， 若信息均相同， 则确定调制附加信息与控制附加信息相同， 否则， 调制附加信息与控制附 加信息不同。 （也可以利用节点 +端口匹配后， 在比较其他信息）或者， 下 游节点接收控制通道发送的控制附加信息， 确定调顶对比功能已开启， 扫 描调制附加信息队列； 确定调顶对比功能未开启， 则生成无需识别报告， 发送给上游节点， 回溯至源节点， 发送给管理系统， 同时将收到的控制附 加信息丟弃；
其中， 所述扫描调制附加信息队列为： 读取调制附加信息队列， 判断 调制附加信息队列中是否有与控制附加信息匹配的调制附加信息， 若没有， 则将控制附加信息添加到控制附加信息队列， 若有， 则将调制附加信息与 控制附加信息对比； 所述确定调顶对比功能已开启过程与获取调制附加信 息后， 确定调顶对比功能已开启的过程相同， 在此不再赘述； 所述判断调 制附加信息队列中是否有与控制附加信息匹配的调制附加信息与判断控制 附加信息队列中是否有与调制附加信息匹配的控制附加信息的过程相同， 下游节点确定调制附加信息与控制附加信息是否相同， 若两者相同， 执行步驟 104; 否则， 执行步驟 103。 同时， 将对比后的调制附加信息及控 制附加信息删除。
进一步的 , 下游节点将接收的调制附加信息及控制附加信息添加时间 标识， 若调制附加信息队列或控制附加信息队列中保存的调制附加信息或 控制附加信息超过预设的时间， 则将该调制附加信息或控制附加信息删除，
避免调制附加信息或控制附加信息的累积。
步驟 103 : 下游节点产生错误报告， 发送给上游节点， 结束处理流程。 调制附加信息与控制附加信息不同， 说明通道出现问题， 向上游节点 发送错误报告， 上游节点收到错误报告后， 将错误报告发送给源节点； 源 节点将错误报告发送给管理系统。 同时源节点停止波长通道的信息发送， 防止错误数据发送给下一节点。
这里， 所述错误报告包括当前节点， 也就是附加信息中的下游节点的 节点名称、 链路、 端口、 业务连接标识符等。
步驟 104: 下游节点产生正常报告， 发送给上游节点。
调制附加信息与控制附加信息相同， 说明通道正常， 向上游节点发送 正常报告， 上游节点收到正常报告后， 将正常报告发送给源节点， 源节点 发送给管理系统； 然后下游节点作为上游节点， 向对应的下游节点发送开 启调顶对比功能的命令， 后续操作与步驟 101至步驟 104相同， 直至宿节 点。 本发明方案中源节点为网络中业务的起始点， 宿节点为业务的终结点。
基于以上方法， 本发明还提供了一种光网络通道检测的装置， 位于光 网络中的节点， 如图 2所示， 该装置包括： 控制平面 201、 调顶识别子系统 202、 传送平面 203; 其中，
控制平面 201 , 用于开启调顶对比功能， 设置附加信息， 将附加信息发 送给调顶识别子系统 202, 以及接收调顶识别子系统 202的报告， 将报告发 送给管理系统；
调顶识别子系统 202,位于上游节点时， 用于将控制平面 201发来的附 加信息作为控制附加信息发送给下游节点， 以及将附加信息作为调制附加 信息发送给传送平面 203; 位于下游节点时， 用于获取上游节点发来的控制 附加信息及解调传送平面 203发来的调制附加信息， 并对比， 根据对比结 果生成报告， 发送给控制平面 201 ;
传送平面 203 ,位于上游节点时， 用于将调顶识别子系统 202发来的调 制附加信息发送给下游节点的传送平面 203 ; 位于下游节点时， 用于将接收 的调制附加信息转发给调顶识别子系统 202。
调顶识别子系统 202进一步包括： 扩展信令模块 2021；
控制平面 201具体用于， 向扩展信令模块 2021发送开启调顶对比功能 命令；
扩展信令模块 2021 , 用于接收控制平面 201发来的开启调顶对比功能 命令， 确定调顶对比功能未开启， 开启调顶对比功能； 同时， 将开启调顶 对比功能命令下发给下游节点的扩展信令模块 2021；
其中， 所述确定调顶对比功能未开启， 开启调顶对比功能包括： 读取 需要检测的通道的调顶状态标识符， 若标识符状态为开启， 则不需要进行 其他处理， 若标识符状态为关闭， 则将其状态修改为开启； 所述需要检测 的通道可根据需要设定。
调顶识别子系统 202进一步包括： 调制解调代理模块 2022;
扩展信令模块 2021 , 位于上游节点时， 还用于将控制平面 201发来的 附加信息作为控制附加信息 , 通过控制通道发送给下游节点的扩展信令模 块 2021 , 所述发送可以通过扩展信令协议携带对象将附加信息发送给调制 解调代理模块 2022;
调制解调代理模块 2022 ,用于将接收扩展信令模块 2021发来的附加信 息作为调制附加信息， 调制到光波长信号上， 发生给传送平面 203。
调顶识别子系统 202进一步包括： 对比模块 2023;
扩展信令模块 2021 , 位于下游节点时， 具体用于， 接收上游节点的扩 展信令模块 2021发送的控制附加信息， 确定调顶对比功能已开启， 将控制 附加信息发送给对比模块 2023 , 否则， 将控制附加信息丟弃， 并生成无需 识别报告， 发生给控制平面 201 ; 或收到调制解调代理模块 2022的通知，
查询调顶对比功能是否开启， 若调顶对比功能已开启， 通知调制解调代理 模块 2022, 否则， 通知调制解调代理模块 2022调顶对比功能未开启， 并生 成无需识别报告， 发送给控制平面 201 ; 接收对比模块 2023发送的对比结 果， 根据对比结果生成报告， 发生给控制平面 201 ;
调制解调代理模块 2022具体用于， 位于下游节点时， 从传送平面 203 接收的光波长信号中解调出调制附加信息， 通过扩展信令模块 2021查询调 顶对比功能已开启， 将调制附加信息发送给对比模块 2023 ; 否则， 将调制 附加信息丟弃；所述通过扩展信令模块 2021查询调顶对比功能已开启包括： 解调出调制附加信息， 通知扩展信令模块 2021 ,接收扩展信令模块 2021发 送的调顶对比功能已开启的通知；
对比模块 2023 ,位于下游节点时， 用于接收扩展信令模块 2021发来的 控制附加信息，扫描调制附加信息队列；或者，接收调制解调代理模块 2022 发来的调制附加信息， 扫描控制附加信息队列； 获取对比结果， 发给扩展 信令模块 2021 , 并将对比后的控制附加信息或调制附加信息删除。
对比模块 2023进一步用于， 在接收的调制附加信息或控制附加信息上 添加时间标识， 将调制附加信息队列或控制附加信息队列中保存时间超过 预设时间的调制附加信息或控制附加信息删除。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。
Claims
1、 一种光网络通道检测的方法， 其特征在于， 该方法包括：
上游节点开启调顶对比功能， 将设置的附加信息， 作为调制附加信息 及控制附加信息发送给下游节点；
所述下游节点接收调制附加信息及控制附加信息并对比， 根据对比结 果生成报告， 发送给管理系统。
2、 根据权利要求 1所述的方法， 其特征在于， 所述开启调顶对比功能 包括：
上游节点确定调顶对比功能未开启， 开启调顶对比功能， 并向下游节 点发送开启调顶对比功能命令。
3、根据权利要求 1所述的方法，其特征在于， 所述将设置的附加信息， 作为调制附加信息及控制附加信息发送给下游节点， 包括：
将附加信息作为控制附加信息， 通过控制通道发送给下游节点； 将附 加信息作为调制附加信息， 调制到光波长信号， 通过波长通道发送给下游 节点。
4、 根据权利要求 1所述的方法， 其特征在于， 所述下游节点接收调制 附加信息及控制附加信息并对比， 包括：
接收控制通道发送的控制附加信息， 确定调顶对比功能已开启， 扫描 调制附加信息队列； 或者， 接收波长通道传输的光波长信号， 解调后获取 调制附加信息， 确定调顶对比功能已开启， 扫描控制附加信息队列；
将调制附加信息与控制附加信息对比。
5、 根据权利要求 4所述的方法， 其特征在于， 该方法进一步包括： 下游节点为接收的调制附加信息及控制附加信息添加时间标识， 将调 制附加信息队列或控制附加信息队列中保存的超过预设时间的调制附加信 息或控制附加信息删除。
6、一种光网络通道检测的装置， 其特征在于， 该装置包括： 控制平面、 调顶识别子系统以及传送平面； 其中，
控制平面， 用于启动调顶识别功能， 将设置的附加信息发送给调顶识 别子系统； 接收调顶识别子系统发来的报告， 将报告发送给管理系统； 调顶识别子系统， 位于上游节点时， 用于将控制平面发来的附加信息 作为控制附加信息， 发送给下游节点， 将附加信息作为调制附加信息， 发 送给传送平面； 位于下游节点时， 用于获取上游节点发来的控制附加信息 及解调传送平面发来的调制附加信息并对比， 根据对比结果生成报告， 发 送给控制平面；
传送平面， 位于上游节点时， 用于将调顶识别子系统发来的调制附加 信息发送给下游节点； 位于下游节点时， 用于将接收的调制附加信息转发 给调顶识别子系统。
7、 根据权利要求 6所述的装置， 其特征在于， 所述调顶识别子系统进 一步包括： 扩展信令模块， 用于接收控制平面发来的开启调顶对比功能命 令， 确定调顶对比功能未开启， 开启调顶对比功能， 将开启调顶对比功能 命令发送给下游节点；
相应的， 所述控制平面， 具体用于向扩展信令模块发送开启调顶对比 功能命令。
8、 根据权利要求 6或 7所述的装置， 其特征在于， 所述调顶识别子系 统进一步包括： 调制解调代理模块， 位于上游节点时， 用于将控制平面发 来的附加信息作为调制附加信息， 调制到光波长信号上， 发送给下游节点； 相应的， 所述扩展信令模块， 位于上游节点时， 具体用于， 将附加信 息作为控制附加信息， 通过控制通道发送给下游节点； 将附加信息发送给 调制解调代理模块。
9、 根据权利要求 8所述的装置， 其特征在于， 所述调顶识别子系统进 一步包括： 对比模块， 用于接收扩展信令模块发来的控制附加信息， 扫描 调制附加信息队列； 或者， 接收调制附加信息， 扫描控制附加信息队列； 并将控制附加信息和调制附加信息进行对比；
相应的， 所述扩展信令模块， 位于下游节点时， 具体用于， 接收上游 节点发来的控制附加信息， 确定调顶对比功能已开启， 将控制附加信息发 送给对比模块； 或收到调制解调代理模块的查询调顶对比功能是否开启的 通知， 查询调顶对比功能已开启， 通知调制解调代理模块；
所述调制解调代理模块， 位于下游节点时， 具体用于， 从下游节点中 传送平面接收的光波长信号中解调出调制附加信息 , 通过扩展信令模块查 询调顶对比功能已开启， 将调制附加信息发送给对比模块。
10、 根据权利要求 9所述的装置， 其特征在于，
所述对比模块， 进一步用于在接收的调制附加信息或控制附加信息上 添加时间标识， 将调制附加信息队列或控制附加信息中保存时间超过预设 时间的调制附加信息或控制附加信息删除。
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| CN102595259A (zh) * | 2012-03-05 | 2012-07-18 | 中兴通讯股份有限公司 | 一种实现对波长标签进行编码的方法和系统 |
| CN113037383A (zh) * | 2019-12-24 | 2021-06-25 | 中兴通讯股份有限公司 | 波长调节方法、装置、电子设备及计算机可读介质 |
| CN113037678B (zh) * | 2021-02-26 | 2021-11-23 | 江苏科大亨芯半导体技术有限公司 | 标注光纤波长的方法 |
| CN116647276A (zh) * | 2022-02-16 | 2023-08-25 | 中兴通讯股份有限公司 | 光网络的通道功率控制方法、控制设备及存储介质 |
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