WO2017202100A1 - 一种otn设备下实现数据业务保护的方法 - Google Patents

一种otn设备下实现数据业务保护的方法 Download PDF

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WO2017202100A1
WO2017202100A1 PCT/CN2017/075535 CN2017075535W WO2017202100A1 WO 2017202100 A1 WO2017202100 A1 WO 2017202100A1 CN 2017075535 W CN2017075535 W CN 2017075535W WO 2017202100 A1 WO2017202100 A1 WO 2017202100A1
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data service
gfp
port
service
real
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毛晓波
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烽火通信科技股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • 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
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • 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
    • H04Q11/0005—Switch and router 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
    • 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
    • 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
    • H04Q2011/0083—Testing; Monitoring

Definitions

  • the present invention relates to the field of optical communication technologies, and in particular, to a method for implementing data service protection under an OTN device.
  • the objectives of the 12th Five-Year Development Plan stipulate that during the 12th Five-Year Plan period, China's urban household broadband will reach 20 trillion or more, and rural households will reach more than 4 trillion broadband.
  • the use of small equipment will have the ability to upgrade the dedicated line bandwidth to FE/GE, based on flexible ODUO particles.
  • the device that is scheduled and has the OTN (Optical Transport Networking) system to improve the protection mechanism becomes the focus of the carrier deployment.
  • the OTN device implements Ethernet LAG (Link Aggregation) protection, which is defined by the IEEE802.3ah protocol.
  • the physical layer aggregation method defines the fragmentation and recombination functions of relatively complex Ethernet frames. In theory, physical layer aggregation provides faster protection of multiple links between node devices and more efficient load sharing functions. This requires OTN devices to implement interoperability with client-side devices through certain solutions. Ensure that both directions can cut off the business.
  • the traditional OTN equipment adopts OCP (Optical Channel Layer Protection) to implement the protection of the customer-side access service.
  • OCP Optical Channel Layer Protection
  • the protection method requires the user to add an OCP board to implement concurrent selection of services, which increases the networking cost of the user.
  • mapping methods for online data services.
  • GFP Generic Framing Procedure
  • STM-N Serial Transport Module level N
  • OPU OPU
  • the GE service directly encapsulates the mapping to the OPU1/OPU2 through the GFP protocol.
  • the multiplex is multiplexed to the ODU1/ODU2 channel signal.
  • the technical problem to be solved by the present invention is to solve the problem that the existing data service protection method cannot be compatible with multiple service mapping modes on the line network at the same time, and the cost is high.
  • the technical solution adopted by the present invention is to provide a method for implementing data service protection under an OTN device, including the following steps:
  • Step 101 Real-time monitoring of the status of the data service port and a serious alarm at the OTN cost level
  • Step 102 The board carrying the data service determines whether to insert the GFP_CSF management frame in the corresponding GFP channel according to the G.7041 protocol according to the alarm state detected in real time and the mapping manner of the data service.
  • Step 103 The card carrying the data service determines whether to monitor the GFP_CSF management frame in the demapping direction according to the mapping manner of the current data service.
  • Step 104 The card carrying the data service determines whether to insert a C1C2 fixed code stream conforming to the 802.3 protocol to the GE port of the peer router according to the state of the port monitored in real time and the state of the demapping direction GFP_CSF, so that the data service with the card is performed.
  • the service of the router port connected to the port is interrupted to complete the entire service switching operation.
  • Step 105 After all the real-time monitored alarms disappear, cancel the C1C2 fixed code stream inserted by the data service port, so that the entire service channel resumes normal operation.
  • the condition that the alarm is lost at the receiving end is that the corresponding GFP management frame is not received for 3 consecutive seconds.
  • the data stream in the RX/TX direction is replaced with the C1C2 fixed sequence.
  • the present invention replaces the data service signal with the C1C2 fixed sequence for the data service with the GE_TTT mapping.
  • the GFP management frame is used to transmit the alarm information, and the LFI is inserted into the data service port to complete the switching.
  • the method adapts to the encapsulation form of a variety of data services, does not fall into an infinite loop and causes the service to be unrecoverable after the failure disappears, and does not need to be implemented with the optical power detection of the OCP, and can completely implement the pair with the router. Through and two-way protection, it is compatible with multiple service mapping methods on the line network, and the cost is low.
  • FIG. 1 is a flowchart of a method for implementing data service protection under an OTN device according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of protection of a data service encapsulated by a GFP_T/GFP_F according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for implementing data service protection in an OTN device.
  • the method includes the following steps:
  • Step 101 Real-time monitoring of the status of the data service port and a serious alarm at the OTN cost level.
  • Step 102 The board carrying the data service determines whether to insert the GFP_CSF management frame in the corresponding GFP channel according to the G.7041 protocol according to the alarm status detected in real time and the mapping manner of the data service.
  • FIG. 2 is a schematic diagram of protection of a data service using GFP_T/GFP_F encapsulation according to an embodiment of the present invention.
  • GFP_CSF and GFP_RDI are GFP layer management frames, and the transmitting end periodically inserts 100 milliseconds to determine an alarm at the receiving end. The condition of disappearing is not received for 3 consecutive seconds.
  • Corresponding GFP management frame is a schematic diagram of protection of a data service using GFP_T/GFP_F encapsulation according to an embodiment of the present invention.
  • both GFP_CSF and GFP_RDI are GFP layer management frames, and the transmitting end periodically inserts 100 milliseconds to determine an alarm at the receiving end. The condition of disappearing is not received for 3 consecutive seconds.
  • Corresponding GFP management frame is a schematic diagram of protection of a data service using GFP_T/GFP_F encapsulation according to an embodiment of the present invention.
  • the insertion condition of the LFI should exclude the Linkdown alarm of the data service port to prevent the protection router from entering the deadlock state and fail to recover the service.
  • Step 103 The board that carries the data service determines whether to monitor the GFP_CSF management frame in the demapping direction according to the mapping manner of the current data service.
  • Step 104 The board carrying the data service determines whether to insert a C1C2 fixed code stream conforming to the 802.3 protocol to the GE port of the peer router according to the status of the port monitored in real time and the GFP_CSF status of the demapping direction, so that the data service port with the board is enabled.
  • the service of the docked router port is interrupted to complete the entire data service switching action.
  • Step 105 After all the real-time monitored alarms disappear, cancel the C1C2 fixed code stream inserted by the data service port, so that the entire service channel resumes normal operation.
  • the data stream in the RX/TX direction is replaced with the C1C2 fixed sequence due to the GE_TTT mapping.
  • the downlink data service signal is transparently transmitted in the OTN network, so that the fixed sequence of the C1C2 can reach the router on the other side through the OTN network to implement bidirectional switching.
  • the C1C2 code stream is cancelled to replace the data service signal, and the service returns to normal.
  • the data service signal is replaced with the C1C2 fixed sequence according to the G.709 standard, and for the data service encapsulated by the GFP_F/GFP_T, the GFP management frame is used to transmit the alarm information, and at the data service port. Insert LFI to complete the switching work.
  • This method adapts to a variety of data service encapsulation forms, and does not suffer from the problem that the service cannot be recovered after the failure disappears, and does not need to be implemented with OCP optical power detection, which can be fully realized. It has the same communication and two-way protection with the router, and is compatible with multiple service mapping methods on the line network, and the cost is low.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

本发明公开了一种OTN设备下实现数据业务保护的方法，包括以下步骤：实时监测数据业务端口的状态以及OTN开销层面的严重告警；板卡根据实时监测到的告警状态以及数据业务的映射方式，决定是否在GFP通道内插入GFP_CSF管理帧；板卡根据数据业务的映射方式决定是否监测解映射方向的GFP_CSF管理帧；板卡根据监测到的端口状态以及解映射方向GFP_CSF状态，决定是否向对端路由器的GE端口插入C1C2固定码流；当所有实时监测到的告警消失后，取消数据业务端口下插的C1C2固定码流，使得整个业务通道恢复正常工作。本发明，适应了多种数据业务封装形式，不会出现陷入死循环而导致故障消失后业务无法恢复的问题，也不需要配合OCP的光功率检测实现，可以完全实现跟路由器的对通和双向保护，且成本较低。

Description

一种OTN设备下实现数据业务保护的方法 技术领域
本发明涉及光通信技术领域，具体涉及一种OTN设备下实现数据业务保护的方法。
背景技术
《十二五发展规划》目标规定，十二五期间我国城市家庭宽带达到20兆以上，农村家庭宽带达到4兆以上，采用小型设备，具有专线带宽升级为FE/GE的能力，基于ODUO颗粒灵活调度并且具备OTN(Optical Transport Networking，光传送网)系统完善保护机制的装置成为运营商部署的关注点，OTN设备实现以太网LAG(Link Aggregation，链路聚合)保护，采用由IEEE802.3ah协议定义的物理层聚合方式，定义了比较复杂的以太网帧的分片及重组功能。理论上，物理层聚合提供了节点设备间多链路更快的保护及效率更高的负载均担功能，这就要求OTN设备自身能通过某些方案实现与客户侧设备互通出现故障时，能保证双向都能切断业务。
传统的OTN设备多采用OCP(光通道层保护)来实现对应客户侧接入业务的保护，该保护方法需要用户添置OCP板卡来实现业务的并发选收，增加了用户的组网成本。
在线网上数据业务存在多种映射方式，除了标准的ODUO映射以外，还存在大量的使用其它映射方式的老设备，它们使用的映射方式大致有两种：一是通过GFP(Generic Framing Procedure,通用成帧规程)协议将GE业务映射到STM-N(Synchronous Transport Module level N，同步传输模块n级)中，然后再映射到OPU中；二是GE业务通过GFP协议直接封装映射到OPU1/OPU2的支路时隙中，再映射复用到ODU1/ODU2通道信号。出于 对降低用户组网成本的考虑，以及线网上GE业务多种映射模式并存的现状，需要提出一种统一的低成本的数据业务保护方法。
发明内容
本发明所要解决的技术问题是解决现有的数据业务保护方法不能同时兼容线网上的多种业务映射方式，且成本较高的问题。
为了解决上述技术问题，本发明所采用的技术方案是提供一种OTN设备下实现数据业务保护的方法，包括以下步骤：
步骤101：实时监测数据业务端口的状态以及OTN开销层面的严重告警；
步骤102：承载数据业务的板卡根据实时监测到的告警状态以及数据业务的映射方式，决定是否根据G.7041协议在相应的GFP通道内插入GFP_CSF管理帧；
步骤103：承载数据业务的板卡根据当前数据业务的映射方式决定是否监测解映射方向的GFP_CSF管理帧；
步骤104：承载数据业务的板卡根据实时监测到的端口状态以及解映射方向GFP_CSF的状态，决定是否向对端路由器的GE端口插入符合802.3协议的C1C2固定码流，使得与本板卡数据业务端口对接的路由器端口业务中断从而完成整个业务倒换动作；
步骤105：当所有实时监测到的告警消失后，取消数据业务端口下插的C1C2固定码流，使得整个业务通道恢复正常工作。
在上述方法中，在接收端判断告警消失的条件为连续3秒没有接收到对应的GFP管理帧。
在上述方法中，对于采用GE_TTT映射的数据业务，当在数据业务端口实时监测到LOS、Linkdown或OTN开销故障时，将RX/TX方向的数据码流都替换为C1C2固定序列。
本发明，对于采用GE_TTT映射的数据业务，将数据业务信号替换为C1C2固定序列，对于采用GFP_F/GFP_T封装的数据业务，则采用GFP管理帧传递告警信息，同时在数据业务端口插入LFI来完成倒换工作，该方法适应了多种数据业务的封装形式，不会出现陷入死循环而导致故障消失后业务无法恢复的问题，也不需要配合OCP的光功率检测来实现，可以完全实现跟路由器的对通和双向保护，同时兼容线网上的多种业务映射方式，且成本较低。
附图说明
图1为本发明实施例提供的一种OTN设备下实现数据业务保护的方法流程图；
图2为本发明实施例提供的数据业务采用GFP_T/GFP_F封装的保护示意图。
具体实施方式
下面结合说明书附图和具体实施方式对本发明做出详细的说明。
本发明实施例提供了一种OTN设备下实现数据业务保护的方法，对于采用GFP_F/GFP_T封装的数据业务，如图1所示，所述方法包括以下步骤：
步骤101、实时监测数据业务端口的状态以及OTN开销层面的严重告警。
步骤102、承载数据业务的板卡根据实时监测到的告警状态以及数据业务的映射方式，决定是否根据G.7041协议在相应的GFP通道内插入GFP_CSF管理帧。
图2为本发明实施例提供的数据业务采用GFP_T/GFP_F封装的保护示意图，如图2所示，GFP_CSF和GFP_RDI都是GFP层管理帧，发送端采用100毫秒周期性插入，在接收端判断告警消失的条件为连续3秒没有接收到 对应的GFP管理帧。
LFI(Link Fault Indication，链路故障指示)的插入条件应排除数据业务端口的Linkdown告警，以排除对端路由器端口打开自协商功能导致保护逻辑进入死锁状态无法恢复业务。
步骤103、承载数据业务的板卡根据当前数据业务的映射方式决定是否监测解映射方向的GFP_CSF管理帧。
步骤104、承载数据业务的板卡根据实时监测到的端口状态以及解映射方向GFP_CSF状态，决定是否向对端路由器的GE端口插入符合802.3协议的C1C2固定码流，使得与本板卡数据业务端口对接的路由器端口业务中断从而完成整个数据业务倒换动作。
步骤105、当所有实时监测到的告警消失后，取消数据业务端口下插的C1C2固定码流，使得整个业务通道恢复正常工作。
对于采用GE_TTT映射的数据业务，当在数据业务端口实时监测到LOS(线路光信号丢失)/Linkdown或OTN开销故障时，将RX/TX方向的数据码流都替换为C1C2固定序列，由于GE_TTT映射下数据业务信号在OTN网络中是透传的，这样在C1C2固定序列可以透过OTN网络到达另一侧的路由器实现双向倒换，当故障消失后取消C1C2码流替换数据业务信号，业务恢复正常。
本发明，对于采用GE_TTT映射的数据业务，按照G.709标准将数据业务信号替换为C1C2固定序列，对于采用GFP_F/GFP_T封装的数据业务，则采用GFP管理帧传递告警信息，同时在数据业务端口插入LFI来完成倒换工作，该方法适应了多种数据业务封装形式，不会出现陷入死循环而导致故障消失后业务无法恢复的问题，也不需要配合OCP的光功率检测来实现，可以完全实现跟路由器的对通和双向保护，同时兼容线网上的多种业务映射方式，且成本较低。
本发明不局限于上述最佳实施方式，任何人应该得知在本发明的启示下作出的结构变化，凡是与本发明具有相同或相近的技术方案，均落入本发明的保护范围之内。

Claims (3)

  1. 一种OTN设备下实现数据业务保护的方法，其特征在于，所述方法包括以下步骤：
    步骤101：实时监测数据业务端口的状态以及OTN开销层面的严重告警；
    步骤102：承载数据业务的板卡根据实时监测到的告警状态以及数据业务的映射方式，决定是否根据G.7041协议在相应的GFP通道内插入GFP_CSF管理帧；
    步骤103：承载数据业务的板卡根据当前数据业务的映射方式决定是否监测解映射方向的GFP_CSF管理帧；
    步骤104：承载数据业务的板卡根据实时监测到的端口状态以及解映射方向GFP_CSF的状态，决定是否向对端路由器的GE端口插入符合802.3协议的C1C2固定码流，使得与本板卡数据业务端口对接的路由器端口业务中断从而完成整个业务倒换动作；
    步骤105：当所有实时监测到的告警消失后，取消数据业务端口下插的C1C2固定码流，使得整个业务通道恢复正常工作。
  2. 如权利要求1所述的方法，其特征在于，在接收端判断告警消失的条件为连续3秒没有接收到对应的GFP管理帧。
  3. 如权利要求1所述的方法，其特征在于，还包括:
    对于采用GE_TTT映射的数据业务，当在数据业务端口实时监测到LOS、Linkdown或OTN开销故障时，将RX/TX方向的数据码流都替换为C1C2固定序列。
PCT/CN2017/075535 2016-05-25 2017-03-03 一种otn设备下实现数据业务保护的方法 WO2017202100A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113132048A (zh) * 2019-12-31 2021-07-16 中兴通讯股份有限公司 业务码流处理装置及方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY194976A (en) * 2016-05-25 2022-12-29 Fiberhome Telecommunication Tech Co Ltd Method implementing data service protection in otn device
CN107579796B (zh) * 2017-09-21 2019-04-26 烽火通信科技股份有限公司 一种otn支路板卡的时钟处理装置及方法
CN113114406B (zh) * 2021-03-11 2022-08-05 烽火通信科技股份有限公司 防止otn光通道保护死锁方法、装置、设备及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1983931A (zh) * 2006-04-05 2007-06-20 华为技术有限公司 在光网络中传递故障信息的方法及系统
CN101662398A (zh) * 2009-10-14 2010-03-03 烽火通信科技股份有限公司 一种传输系统中实现客户接入链路告警传递的方法
CN101951532A (zh) * 2010-09-07 2011-01-19 华为技术有限公司 Otn网络业务缺陷信息传输、获取方法及装置、系统
US8243619B2 (en) * 2005-12-14 2012-08-14 Cisco Technology, Inc. Smart mechanism for multi-client bidirectional optical channel protection scheme
CN105871453A (zh) * 2016-05-25 2016-08-17 烽火通信科技股份有限公司 一种otn设备下实现数据业务保护的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20050243A1 (it) * 2005-02-18 2006-08-19 Alcatel Italia Propagazione e rilevamento di guasti in una rete per telecomunicazioni
CN103209021B (zh) * 2013-04-11 2016-05-04 烽火通信科技股份有限公司 一种gfp帧映射封装业务的对称系统的双向保护方法
CN103746738B (zh) * 2014-01-10 2016-06-22 烽火通信科技股份有限公司 Gfp帧传递实现双向断业务的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8243619B2 (en) * 2005-12-14 2012-08-14 Cisco Technology, Inc. Smart mechanism for multi-client bidirectional optical channel protection scheme
CN1983931A (zh) * 2006-04-05 2007-06-20 华为技术有限公司 在光网络中传递故障信息的方法及系统
CN101662398A (zh) * 2009-10-14 2010-03-03 烽火通信科技股份有限公司 一种传输系统中实现客户接入链路告警传递的方法
CN101951532A (zh) * 2010-09-07 2011-01-19 华为技术有限公司 Otn网络业务缺陷信息传输、获取方法及装置、系统
CN105871453A (zh) * 2016-05-25 2016-08-17 烽火通信科技股份有限公司 一种otn设备下实现数据业务保护的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113132048A (zh) * 2019-12-31 2021-07-16 中兴通讯股份有限公司 业务码流处理装置及方法

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