WO2013185583A1 - 智能光网络中保护业务的恢复方法和装置 - Google Patents

智能光网络中保护业务的恢复方法和装置 Download PDF

Info

Publication number
WO2013185583A1
WO2013185583A1 PCT/CN2013/077030 CN2013077030W WO2013185583A1 WO 2013185583 A1 WO2013185583 A1 WO 2013185583A1 CN 2013077030 W CN2013077030 W CN 2013077030W WO 2013185583 A1 WO2013185583 A1 WO 2013185583A1
Authority
WO
WIPO (PCT)
Prior art keywords
port
protection
protection group
new
switching recovery
Prior art date
Application number
PCT/CN2013/077030
Other languages
English (en)
French (fr)
Inventor
富森
卢鸿飞
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013185583A1 publication Critical patent/WO2013185583A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03Arrangements for fault recovery
    • H04B10/032Arrangements for fault recovery using working and protection systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0654Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/04Network management architectures or arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/34Signalling channels for network management communication
    • H04L41/344Out-of-band transfers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/50Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q2011/0079Operation or maintenance aspects
    • H04Q2011/0081Fault tolerance; Redundancy; Recovery; Reconfigurability

Definitions

  • the present invention relates to the field of intelligent optical networks, and in particular, to a method and apparatus for recovering protection services in an intelligent optical network. Background technique
  • the optical transport network is facing an intelligent evolution. Its main technology, Wavelength Switched Optical Network (WSON), introduces the WDM control plane into the wavelength network, which will realize intelligent scheduling and recovery of OTN services.
  • WSON Wavelength Switched Optical Network
  • the service recovered by the GMPLS protocol will cause 200ms-2s service damage. This damage is acceptable for IP services, but it is unacceptable to users for large-capacity bearer networks such as OTN.
  • the control plane needs to provide acceptable survivability of the service through traditional protection techniques.
  • traditional protection either relying on 1+1 protection or relying on ring sharing protection, the service loss time is less than 50ms, and even 10ms. This is because traditional protection does not rely on the complex Generalized Multi-Protocol Label Switching Protocol (GMPLS) protocol, which only implements service switching through a small number of bytes within the service overhead. Switching and recovery through the GMPLS protocol takes a long time.
  • GMPLS Generalized Multi-Protocol Label Switching Protocol
  • the embodiment of the invention provides a method and a device for recovering a protection service in an intelligent optical network, and solves the problem that a long switching time affects a service under the GMPLS protocol.
  • the method for recovering the protection service in the intelligent optical network in the embodiment of the present invention uses the GMPLS protocol, and the method includes:
  • the step of selecting a new port and establishing a path by using the new port further includes:
  • the re-routing of the service is started, the failed working port is removed by the switching recovery protection group, and the alliance of the switching recovery protection group is cancelled.
  • the step of updating the new port replacement faulty port to the switching recovery protection group comprises:
  • the step of selecting a new port and establishing a path by using the new port further includes:
  • the re-routing of the service is started, the faulty protection port is removed by the switching recovery protection group, and the monitoring of the switching recovery protection group is cancelled.
  • the port that replaces the new port replacement fault is updated to the switching recovery protection group, specifically:
  • the method further includes:
  • the method further includes:
  • the device for recovering the protection service in the intelligent optical network in the embodiment of the present invention uses the GMPLS protocol, and the device includes:
  • a detecting unit configured to monitor a switching recovery protection group formed by a working port and a protection port; and a control plane, configured to select a new port when the port in the switching recovery protection group fails, using the new port Establish a path;
  • a protection unit configured to replace the failed port with the new port, to update the switchover Complex protection group.
  • control plane is further configured to initiate re-routing of the service, and when the working port of the switching recovery protection group fails, the failed working port is removed by the switching recovery protection group, and the switching is cancelled.
  • the monitoring of the protection group is resumed, or the failed protection port is removed from the switching recovery protection group when the working port and the protection port of the switching recovery protection group are faulty, and the monitoring of the switching recovery protection group is cancelled.
  • the detecting unit starts monitoring the switching recovery protection group.
  • the protection unit comprises:
  • a first update module configured to add the new port as a new working port to the switching recovery protection group when the control plane removes the failed working port from the switching recovery protection group
  • a second update module configured to add the new port as a new protection port to the switching recovery protection group when the control plane removes the failed protection port from the switching recovery protection group.
  • the method and device for recovering the protection service in the intelligent optical network in the embodiment of the present invention implements the replacement of the port in the 1+1 switching recovery protection group, and solves the problem that the switching time is long and affects the service under the GMPLS protocol.
  • FIG. 1 is a schematic structural diagram of a device for restoring a protection service in an intelligent optical network according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic view showing the internal structure of the protection unit 103 of FIG. 1;
  • FIG. 3 is a schematic diagram showing the working principle of a protection service recovery device in an intelligent optical network according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of a method for restoring a protection service in an intelligent optical network according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram of an application environment according to Embodiment 3 of the present invention
  • FIG. 6 is a schematic diagram of a network situation when path 1 fails in the third embodiment of the present invention
  • FIG. 3 is a schematic diagram of an application environment according to Embodiment 4 of the present invention
  • FIG. 8 is a schematic diagram of a network when path 1 fails in Embodiment 4 of the present invention
  • FIG. 9 is a schematic diagram of a network when both paths 1 and 2 fail in Embodiment 4 of the present invention.
  • OTN is facing an intelligent evolution, and its main technology, WSON, will realize intelligent scheduling and recovery of OTN services.
  • WSON main technology
  • the service recovered by the GMPLS protocol will cause 200ms-2s service damage. This damage is acceptable for IP services, but it is unacceptable to users for large-capacity bearer networks such as OTN.
  • embodiments of the present invention provide a method and apparatus for recovering protection services in an intelligent optical network.
  • Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.
  • An embodiment of the present invention provides a device for recovering a protection service in an intelligent optical network, where the device uses GMPLS, and its structure is as shown in FIG. 1 , including:
  • the detecting unit 101 is configured to monitor a switching recovery protection group formed by a working port and a protection port;
  • the control plane 102 is configured to select a new port when the port in the switching recovery protection group fails, and establish a path by using the new port;
  • the protection unit 103 configured to replace the new port with the failed port, to the switch recovery protection group.
  • control plane 102 is further configured to initiate re-routing of the service, and when the working port of the switching recovery protection group fails, the working port that is faulty is removed by the switching recovery protection group, and the The switchover recovery protection group is monitored, or when the working port and the protection port of the switching recovery protection group fail, the failed protection port is removed from the switching recovery protection group, and the monitoring of the switching recovery protection group is cancelled.
  • the checklist is started. The element monitors the switching recovery protection group.
  • the protection unit 103 includes:
  • the first update module 1031 is configured to add the new port as a new working port to the switching recovery protection group when the control plane removes the failed working port from the switching recovery protection group;
  • the second update module 1032 is configured to add the new port as a new protection port to the switchover protection protection group when the control plane removes the failed protection port from the switch recovery protection group.
  • the working principle of the protection service recovery device in the intelligent optical network provided by the embodiment of the present invention is shown in FIG. 3:
  • control plane 102 When establishing the protection attribute service, the control plane 102 allocates a working port and a protection port to the service port, and creates a protection unit 103 according to the transmission plane where the port is located.
  • the protection unit 103 When the service of the control plane 102 is in an inactive state, the protection unit 103 is in a frozen state; when the service is in an active state, the protection unit 103 is in an unfreeze state.
  • control plane 102 and the protection unit 103 share the same detection unit 101, and the control plane 102 controls the operation state of the detection unit 101;
  • the working status of the detecting unit 101 includes: opening the monitoring and canceling the monitoring; in the monitoring state, the detecting unit 101 actively reports the alarm generation and alarm disappearing message, and responds to the query according to the detection status; and in the canceled monitoring state, actively reports the alarm The message disappears, and only the alarm disappear message is acknowledged for the query.
  • the recovery device for protecting the service in the intelligent optical network may include a plurality of detecting units 101, such as a working port and a protection port each having an independent detecting unit 101.
  • the protection unit 103 is first triggered to perform the switching of the service. Then, the control plane 102 is triggered to start the re-routing of the service, re-select a new work/protection port, and establish a path; after the establishment is successful, the re-selected working port and protection port are updated to the protection unit 103;
  • control plane 102 is required to control the protection unit 103 to perform the following operations in sequence:
  • control plane 102 After the control plane 102 deletes the service, it is necessary to delete the protection unit 103 on the transmission plane at the same time, and simultaneously cancel the monitoring of the service working and protection ports of the service.
  • the embodiment of the present invention provides a method for restoring a protection service in an intelligent optical network.
  • the process for completing the protection service in the WSON by using the method is as shown in FIG. 4, and includes:
  • Step 401 Monitor a switching recovery protection group formed by a working port and a protection port.
  • a working port and a protection port form a switching recovery protection group
  • the working port corresponds to a working path
  • the protection port corresponds to protection. path.
  • Step 402 When the port in the switching recovery protection group fails, start rerouting of the service.
  • Step 403 Select a new port, and use the new port to establish a path.
  • Step 404 Update the new port replacement faulty port to the switching recovery protection group.
  • a new port replacement port removed from the switching recovery protection group in step 402 is updated to the switching recovery protection group.
  • the service port and the protection port are faulty in this case.
  • the service data of the switching recovery protection group needs to be switched to The new port corresponds to the path.
  • Step 405 After the rerouting is completed, start monitoring the switching recovery protection group.
  • control plane manages the 1+1 diamond attribute ( 7 j long 1+1) service as an example for description.
  • the application environment of the embodiment of the present invention is as shown in FIG. 5, and a permanent 1+1 protection attribute service of the ODU1 is deployed in the control plane between the two sites.
  • the control plane selects A-2 and B-2 as working ports, and A-3 and B-3 as protection ports.
  • the protection unit is established at the VIII and B nodes, and the detection units of the 2 and 3 ports are set to turn on the monitoring. As shown in Figure 6, after the fault occurs on the path 1, the fault is generated on the detection of the port 2. The protection unit initiates protection switching and switches the service to path 2.
  • control plane starts the recovery process: First, the detection unit of port 2 is unmonitored, then the recovery of path 1 is started, the port 4 of A and B is selected to establish path 3, the protection unit is updated, port 4 is selected as the working port, and port 3 is Protection port; After the path is successfully established, the detection unit of port 4 is turned on for monitoring.
  • the protection unit After the protection unit receives the update operation, the protection unit is frozen first, then the port is updated, the update is released, and the detection contents of port 3 and port 4 are queried.
  • control plane manages the 1+1 gold level attribute (protection and recovery combination) service as an example in the OTN.
  • the application environment of the embodiment of the present invention is as shown in FIG. , and a 1+1 gold-level protection attribute service of the ODU1 is deployed on the control plane between the two sites A and B.
  • Control plane selects A-2 and B-2 as work Port; select A-3 and B-3 as protection ports.
  • a protection unit is established at the B node, and the detection units of the 2 and 3 ports are set to turn on the monitoring. As shown in Figure 8, when the path 1 fails, the detection unit of the 2-port will report the alarm and trigger the protection unit to switch; at this time, the control plane does not start the recovery re-routing process.
  • the detection unit of the 3-port will report the alarm and trigger the protection unit to switch.
  • the control plane triggers the re-routing recovery.
  • Control plane startup recovery process First, the detection unit of port 2 and port 3 is unmonitored, then the recovery of path 2 is started, port 4 of A and B is selected to establish path 3, and the protection unit is updated, and port 2 is selected as the working port, port. 4 is the protection port; after the path is successfully established, the monitoring unit of port 4 is turned on for monitoring.
  • the protection unit When the protection unit receives the update operation, the protection unit is frozen first, then the port is updated, the update is released, and the detection contents of port 2 and port 4 are queried.
  • An embodiment of the present invention provides a method and an apparatus for recovering a protection service in an intelligent optical network, and monitoring a switching recovery protection group formed by a working port and a protection port.
  • a port in the switching recovery protection group fails, Select a new port, use the new port to establish a path, and then replace the new port with the failed port, and update to the switching recovery protection group to implement the replacement of the port in the 1+1 switching recovery protection group.
  • the problem of long switching time under the GMPLS protocol affects the service.
  • all or part of the steps of the foregoing embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the invention is not limited to any specific combination of hardware and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • Each device/function module/functional unit in the above embodiments can be stored in a computer readable storage medium when implemented in the form of a software function module and sold or used as a standalone product.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the present invention implements the replacement of the port in the 1+1 switching protection group, and solves the problem that the switching time is long and affects the service under the GMPLS protocol.

Abstract

一种智能光网络中保护业务的恢复方法和装置,涉及智能光网络领域,解决了GMPLS协议下倒换时间较长影响业务的问题。该方法包括:监视一工作端口和一保护端口构成的倒换恢复保护组;在所述倒换恢复保护组中的端口发生故障时,选择一新的端口,使用该新的端口建立路径;将所述新的端口替换故障的端口,更新至所述倒换恢复保护组。

Description

智能光网络中保护业务的恢复方法和装置 技术领域
本发明涉及智能光网络领域, 尤其涉及一种智能光网络中保护业务的恢 复的方法和装置。 背景技术
光传送网 ( OTN ) 正面临智能化演进, 其主要技术波长交换光网络 ( Wavelength Switched Optical Network, WSON )将波分控制平面引入到波长 网络中, , 将实现 OTN业务的智能调度和恢复。 但与 IP业务不同的是, 通 过 GMPLS协议恢复的业务, 会造成 200ms-2s的业务损伤, 这个损伤对于 IP 业务可以接受, 但对于 OTN这种大容量承载网络, 是用户无法接受的。
因此控制平面需要通过传统的保护技术, 来提供业务的可接受生存性。 在传统保护中, 或者依赖 1+1保护, 或者依赖环共享保护, 都能实现业务受 损时间小于 50ms, 甚至有可能达到 10ms的级别。 这是因为传统保护无需依 赖复杂的通用多协议标志交换协议( GMPLS )协议, 仅仅通过业务开销内的 少量字节实现业务的切换。 而通过 GMPLS协议的倒换及恢复则需要较长时 间。 发明内容
本发明实施例提供了一种智能光网絡中保护业务的恢复的方法和装置, 解决了 GMPLS协议下倒换时间较长影响业务的问题。
本发明实施例中的智能光网络中保护业务的恢复方法使用 GMPLS协议, 该方法包括:
监视一工作端口和一保护端口构成的倒换恢复保护组;
在所述倒换恢复保护组中的端口发生故障时, 选择一新的端口, 使用该 新的端口建立路径;
将所述新的端口替换故障的端口, 更新至所述倒换恢复保护组。 优选的, 在所述倒换恢复保护組的工作端口发生故障时, 所述选择一新 的端口, 使用该新的端口建立路径的步骤之前, 还包括:
启动业务的重路由, 将故障的工作端口由所述倒换恢复保护组移除, 并 取消对该倒换恢复保护组的盟视。
优选的, 将所述新的端口替换故障的端口, 更新至所述倒换恢复保护组 的步骤包括:
将所述新的端口作为新的工作端口, 加入所述倒换恢复保护组。
优选的, 在所述倒换恢复保护組的工作端口与保护端口均发生故障时, 所述选择一新的端口, 使用该新的端口建立路径的步骤之前, 还包括:
启动业务的重路由, 将故障的保护端口由所述倒换恢复保护组移除, 并 取消对该倒换恢复保护组的监视。
优选的, 将所述新的端口替换故障的端口, 更新至所述倒换恢复保护组 具体为:
将所述新的端口作为新的保护端口, 加入所述倒换恢复保护组。
优选的, 将所述新的端口替换故障的端口, 更新至所述倒换恢复保护组 的步骤之后, 还包括:
将所述倒换恢复保护组的业务倒换至所述新的保护端口对应的路径上。 优选的, 将所述新的端口替换故障的端口, 更新至所述倒换恢复保护组 的步骤之后, 还包括:
在重路由完成后, 启动对所述倒换恢复保护组的监视。
本发明实施例中的智能光网络中保护业务的恢复装置, 使用 GMPLS协 议, 该装置包括:
检测单元,设置为监视一工作端口和一保护端口构成的倒换恢复保护组; 控制平面, 设置为在所述倒换恢复保护組中的端口发生故障时, 选择一 新的端口, 使用该新的端口建立路径;
保护单元, 设置为将所述新的端口替换故障的端口, 更新至所述倒换恢 复保护组。
优选的, 所述控制平面, 还设置为启动业务的重路由, 在所述倒换恢复 保护組的工作端口发生故障时将故障的工作端口由所述倒换恢复保护组移 除, 并取消对该倒换恢复保护组的监视, 或在所述倒换恢复保护组的工作端 口与保护端口均发生故障时将故障的保护端口由所述倒换恢复保护组移除, 并取消对该倒换恢复保护组的监视, 在重路由完成后, 启动所述检测单元对 所述倒换恢复保护组的监视。
优选的, 所述保护单元包括:
第一更新模块, 设置为在所述控制平面将故障的工作端口由所述倒换恢 复保护组移除时将所述新的端口作为新的工作端口, 加入所述倒换恢复保护 组;
第二更新模块, 设置为在所述控制平面将故障的保护端口由所述倒换恢 复保护组移除时将所述新的端口作为新的保护端口, 加入所述倒换恢复保护 组。
本发明实施例的智能光网络中保护业务的恢复方法和装置, 实现了 1+1 倒换恢复保护组中端口的替换, 解决了 GMPLS协议下倒换时间较长影响业 务的问题。 附图概述
图 1为本发明的实施例一提供的一种智能光网络中保护业务的恢复装置 的结构示意图;
图 2为图 1中保护单元 103的内部结构示意图;
图 3为本发明的实施例一提供的一种智能光网络中保护业务的恢复装置 的工作原理示意图;
图 4为本发明的实施例二提供的一种智能光网络中保护业务的恢复方法 的流程图;
图 5为本发明的实施例三的应用环境示意图; 图 6为本发明的实施例三中路径 1发生故障时的网络情况示意图; 图 Ί为本发明的实施例四的应用环境示意图;
图 8为本发明的实施例四中路径 1发生故障时的网络示意图; 图 9为本发明的实施例四中路径 1和 2均发生故障时的网络示意图。 本发明的较佳实施方式
OTN正面临智能化演进, 其主要技术 WSON, 将实现 OTN业务的智能 调度和恢复。 但与 IP业务不同的是, 通过 GMPLS协议恢复的业务, 会造成 200ms-2s的业务损伤, 这个损伤对于 IP业务可以接受, 但对于 OTN这种大 容量承载网络, 是用户无法接受的。
为了解决上述问题, 本发明的实施例提供了一种智能光网络中保护业务 的恢复方法和装置。 下文中将结合附图对本发明的实施例进行详细说明。 需 要说明的是, 在不冲突的情况下, 本申请中的实施例及实施例中的特征可以 相互任意组合。
首先结合附图, 对本发明的实施例一进行说明。
本发明实施例提供了一种智能光网络中保护业务的恢复装置, 该装置使 用 GMPLS, 其结构如图 1所示, 包括:
检测单元 101 , 设置为监视一工作端口和一保护端口构成的倒换恢复保 护组;
控制平面 102 , 设置为在所述倒换恢复保护组中的端口发生故障时, 选 择一新的端口, 使用该新的端口建立路径;
保护单元 103, 设置为将所述新的端口替换故障的端口, 更新至所述倒 换恢复保护组。
优选的, 所述控制平面 102, 还设置为启动业务的重路由, 在所述倒换 恢复保护组的工作端口发生故障时将故障的工作端口由所述倒换恢复保护组 移除, 并取消对该倒换恢复保护组的监视, 或在所述倒换恢复保护组的工作 端口与保护端口均发生故障时将故障的保护端口由所述倒换恢复保护组移 除, 并取消对该倒换恢复保护组的监视, 在重路由完成后, 启动所述检测单 元对所述倒换恢复保护组的监视。
优选的, 所述保护单元 103如图 2所示, 包括:
第一更新模块 1031 , 设置为在所述控制平面将故障的工作端口由所述倒 换恢复保护组移除时将所述新的端口作为新的工作端口, 加入所述倒换恢复 保护组;
第二更新模块 1032, 设置为在所述控制平面将故障的保护端口由所述倒 换恢复保护組移除时将所述新的端口作为新的保护端口, 加入所述倒换恢复 保护组。 本发明实施例提供的智能光网络中保护业务的恢复装置工作原理如图 3 所示:
控制平面 102在建立带保护属性业务时, 为业务端口分配一工作端口和 一保护端口, 并按照端口所在的传送平面创建保护单元 103。
当控制平面 102的业务处于非激活状态时,保护单元 103处于冻结状态; 当业务处于激活状态时, 保护单元 103处于解除冻结状态。
控制平面 102的业务与保护单元 103共用相同的检测单元 101 , 由控制 平面 102控制检测单元 101的工作状态;
检测单元 101工作状态包括打开监视、 取消监视; 在打开监视状态下, 检测单元 101主动上报告警产生和告警消失消息, 并且根据检测状态对查询 进行应答; 在取消监视状态下, 主动上报告警消失消息, 并且对于查询只应 答告警消失消息。
智能光网络中保护业务的恢复装置可以包括多个检测单元 101, 如工作 端口和保护端口各具有了独立的检测单元 101。
当工作端口和 /或保护端口的检测单元 101上报告警产生后, 首先触发保 护单元 103工作, 执行业务的倒换。 然后触发控制平面 102启动业务的重路 由, 重新选择一个新的工作 /保护端口, 并建立路径; 建立成功后将重新选择 的工作端口和保护端口更新给保护单元 103;
在业务启动重路由恢复时, 需要同时取消业务原有工作端口和 /或保护端 口的告警监视; 在重路由恢复完成后, 重新监视更新后的工作端口和 /或保护 端口。
在保护单元 103更新过程中, 需要控制平面 102控制保护单元 103顺序 进行如下操作:
1、 冻结保护单元;
2、 更新保护单元的工作端口和 /或保护端口;
3、 解除冻结保护单元, 并重新检测更新后的工作端口和 /或保护端口; 4、 当前工作和保护端口状态, 执行保护动作。
当控制平面 102删除业务后, 需要同时删除传送平面上的保护单元 103, 并且同时将业务的工作和保护端口取消监视。
下面结合附图, 对本发明的实施例二进行说明。
本发明实施例提供了一种智能光网络中保护业务的恢复方法, 使用该方 法在 WSON中完成保护业务的流程如图 4所示, 包括:
步骤 401、 监视由一工作端口和一保护端口构成的倒换恢复保护组; 本发明实施例中,由一工作端口和一保护端口构成一个倒换恢复保护组, 工作端口对应工作路径, 保护端口对应保护路径。
步骤 402、 在所述倒换恢复保护组中的端口发生故障时, 启动业务的重 路由;
本步骤中, 在倒换恢复保护组的工作端口故障时, 将故障的工作端口由 所述倒换恢复保护组移除, 并取消对该倒换恢复保护组的监视; 在倒换恢复 保护組的工作端口与保护端口均故障时, 将故障的保护端口由所述倒换恢复 保护组移除, 并取消对该倒换恢复保护组的监视。
步骤 403、 选择一新的端口, 使用该新的端口建立路径;
步骤 404、 将所述新的端口替换故障的端口, 更新至所述倒换恢复保护 組; 本步骤中, 将一新的端口替换步骤 402中自该倒换恢复保护组移除的端 口, 更新至该倒换恢复保护组中。 在用新的端口作为新的保护端口时, 由于 此种情况下工作端口及保护端口均故障,故在将该新的端口更新至保护組后, 需要将该倒换恢复保护组的业务数据倒换至该新的端口对应的路径上。
步骤 405、 在重路由完成后, 启动对所述倒换恢复保护組的监视。
下面结合附图, 对本发明的实施例三进行说明。
本发明实施例以 ΟΤΝ中, 控制平面管理 1+1钻石属性( 7j久 1+1 )业务 为例进行说明。
本发明实施例的应用环境如图 5所示, 在八、 B两个站点间控制平面部 署一条 ODU1的永久 1+1保护属性业务。 控制平面选择 A-2和 B-2作为工作 端口, 选择 A-3和 B-3作为保护端口。
在八、 B节点建立保护单元, 并且设置 2和 3端口的检测单元打开监视。 如图 6所示, 当路径 1发生故障后, 首先端口 2的检测单上报故障产生, 保护单元启动保护倒换, 将业务倒换到路径 2。
然后控制平面启动恢复流程: 首先将端口 2的检测单元取消监视, 然后 启动路径 1的恢复, 选择 A、 B的端口 4建立路径 3, 同时更新保护单元, 选 择端口 4作为工作端口, 端口 3为保护端口; 在路径建立成功后, 将端口 4 的检测单元打开监视。
当保护单元收到更新操作后, 先冻结保护单元, 然后执行端口的更新, 更新后解除冻结, 查询端口 3和端口 4的检测内容。
下面结合附图, 对本发明的实施例四进行说明。
本发明实施例以 OTN中,控制平面管理 1+1金级属性(保护与恢复结合) 业务为例进行说明。
本发明实施例的应用环境如图 Ί所示, 在 A、 B两个站点间控制平面部 署一条 ODU1的 1+1金级保护属性业务。 控制平面选择 A-2和 B-2作为工作 端口; 选择 A-3和 B-3作为保护端口。
在 、 B节点建立保护单元, 并且设置 2和 3端口的检测单元打开监视。 如图 8所示, 当路径 1发生故障后, 2端口的检测单元会上报告警, 触 发保护单元倒换; 这时控制平面不启动恢复重路由过程。
如图 9所示, 当路径 2发生故障后, 3端口的检测单元会上报告警, 触 发保护单元倒换; 同时控制平面触发重路由恢复。
控制平面启动恢复流程: 首先将端口 2、 端口 3的检测单元取消监视, 然后启动路径 2的恢复,选择 A、 B的端口 4建立路径 3, 同时更新保护单元, 选择端口 2作为工作端口, 端口 4为保护端口; 在路径建立成功后, 将端口 4的^测单元打开监视。
当保护单元收到更新操作后, 先冻结保护单元 , 然后执行端口的更新, 更新后解除冻结, 查询端口 2和端口 4的检测内容。
本发明的实施例提供了一种智能光网络中保护业务的恢复方法和装置, 监视一工作端口和一保护端口构成的倒换恢复保护组, 在所述倒换恢复保护 組中的端口发生故障时, 选择一新的端口, 使用该新的端口建立路径, 再将 所述新的端口替换故障的端口, 更新至所述倒换恢复保护组, 实现了 1+1倒 换恢复保护组中端口的替换, 解决了 GMPLS协议下倒换时间较长影响业务 的问题。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计 算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中, 所述计算机程序在相应的硬件平台上(如系统、 设备、 装置、 器件等)执行, 在执行时, 包括方法实施例的步骤之一或其组合。
可选地, 上述实施例的全部或部分步骤也可以使用集成电路来实现, 这 些步骤可以被分别制作成一个个集成电路模块, 或者将它们中的多个模块或 步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬 件和软件结合。 上述实施例中的各装置 /功能模块 /功能单元可以采用通用的计算装置来 实现, 它们可以集中在单个的计算装置上, 也可以分布在多个计算装置所组 成的网络上。
上述实施例中的各装置 /功能模块 /功能单元以软件功能模块的形式实现 并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。 上述提到的计算机可读取存储介质可以是只读存储器, 磁盘或光盘等。
任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想 到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范 围应以权利要求所述的保护范围为准。 工业实用性
本发明实施例实现了 1+1倒换恢复保护组中端口的替换,解决了 GMPLS 协议下倒换时间较长影响业务的问题。

Claims

权 利 要 求 书
1、 一种智能光网络中保护业务的恢复方法, 该智能光网络使用通用多协 议标志交换协议(GMPLS协议) , 该方法包括:
监视由一工作端口和一保护端口构成的倒换恢复保护组;
在所述倒换恢复保护组中的端口发生故障时, 选择一新的端口, 使用该 新的端口建立路径; 以及
将所述新的端口替换故障的端口 , 更新至所述倒换恢复保护组。
2、 根据权利要求 1所述的智能光网络中保护业务的恢复方法, 其中, 在 所述倒换恢复保护组的工作端口发生故障时, 在所述选择一新的端口, 使用 该新的端口建立路径的步骤之前, 还包括:
启动业务的重路由, 将故障的工作端口由所述倒换恢复保护组移除, 并 取消对该倒换恢复保护组的监视。
3、 根据权利要求 2的智能光网络中保护业务的恢复方法, 其中, 将所述 新的端口替换故障的端口, 更新至所述倒换恢复保护组的步骤包括:
将所述新的端口作为新的工作端口, 加入所述倒换恢复保护组。
4、 根据权利要求 1所述的智能光网絡中保护业务的恢复方法, 其中, 在 所述倒换恢复保护组的工作端口与保护端口均发生故障时, 在所述选择一新 的端口, 使用该新的端口建立路径的步骤之前, 还包括:
启动业务的重路由, 将故障的保护端口由所述倒换恢复保护组移除, 并 取消对该倒换恢复保护组的监视。
5、 根据权利要求 4的智能光网络中保护业务的恢复方法, 其中, 将所述 新的端口替换故障的端口, 更新至所述倒换恢复保护组的步骤包括:
将所述新的端口作为新的保护端口, 加入所述倒换恢复保护组。
6、根据权利要求 4所述的智能光网络中保护业务的恢复方法, 其在将所 述新的端口替换故障的端口, 更新至所述倒换恢复保护组的步骤之后, 还包 括:
将所述倒换恢复保护组的业务倒换至所述新的保护端口对应的路径上。
7、根据权利要求 2或 4所述的智能光网络中保护业务的恢复方法, 其在 将所述新的端口替换故障的端口, 更新至所述倒换恢复保护组的步骤之后, 还包括:
在重路由完成后, 启动对所述倒换恢复保护组的监视。
8、 一种智能光网络中保护业务的恢复装置, 该智能光网络使用 GMPLS 协议, 该装置包括:
检测单元, 其设置为监视一工作端口和一保护端口构成的倒换恢复保护 组;
控制平面, 其设置为在所述倒换恢复保护组中的端口发生故障时, 选择 一新的端口, 使用该新的端口建立路径; 以及
保护单元, 其设置为将所述新的端口替换故障的端口, 更新至所述倒换 恢复保护组。
9、 根据权利要求 8所述的智能光网络中保护业务的恢复装置, 其中, 所述控制平面, 还设置为: 启动业务的重路由, 在所述倒换恢复保护组 的工作端口发生故障时将故障的工作端口由所述倒换恢复保护组移除, 并取 消对该倒换恢复保护组的监视, 或在所述倒换恢复保护组的工作端口与保护 端口均发生故障时将故障的保护端口由所述倒换恢复保护组移除, 并取消对 该倒换恢复保护组的监视, 在重路由完成后, 启动所述检测单元对所述倒换 恢复保护组的监视。
10、 根据权利要求 9所述的智能光网络中保护业务的恢复装置, 其中, 所述保护单元包括:
第一更新模块, 其设置为: 在所述控制平面将故障的工作端口由所述倒 换恢复保护组移除时将所述新的端口作为新的工作端口, 加入所述倒换恢复 保护组; 第二更新模块, 其设置为: 在所述控制平面将故障的保护端口由所述倒 换恢复保护組移除时将所述新的端口作为新的保护端口, 加入所述倒换恢复 保护组。
PCT/CN2013/077030 2012-06-12 2013-06-09 智能光网络中保护业务的恢复方法和装置 WO2013185583A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2012101919090A CN102739308A (zh) 2012-06-12 2012-06-12 智能光网络中保护业务的恢复
CN201210191909.0 2012-06-12

Publications (1)

Publication Number Publication Date
WO2013185583A1 true WO2013185583A1 (zh) 2013-12-19

Family

ID=46994170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/077030 WO2013185583A1 (zh) 2012-06-12 2013-06-09 智能光网络中保护业务的恢复方法和装置

Country Status (2)

Country Link
CN (1) CN102739308A (zh)
WO (1) WO2013185583A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102739308A (zh) * 2012-06-12 2012-10-17 中兴通讯股份有限公司 智能光网络中保护业务的恢复
CN105915279B (zh) * 2016-05-18 2018-05-29 烽火通信科技股份有限公司 一种wson中基于otu告警触发保护倒换的方法
CN106789630B (zh) * 2016-12-30 2019-07-26 瑞斯康达科技发展股份有限公司 一种网络保护方法及系统、控制器、设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1710869A (zh) * 2005-07-14 2005-12-21 广东省电信有限公司研究院 自动交换光网络中连接的增强型主备保护的实现方法
US7188280B2 (en) * 2001-03-21 2007-03-06 Fujitsu Limited Protecting route design method in a communication network
CN101079795A (zh) * 2007-07-27 2007-11-28 杭州华三通信技术有限公司 数据转发方法及转发设备
CN102143065A (zh) * 2011-02-09 2011-08-03 华为技术有限公司 一种故障保护方法及设备
CN102739308A (zh) * 2012-06-12 2012-10-17 中兴通讯股份有限公司 智能光网络中保护业务的恢复

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7188280B2 (en) * 2001-03-21 2007-03-06 Fujitsu Limited Protecting route design method in a communication network
CN1710869A (zh) * 2005-07-14 2005-12-21 广东省电信有限公司研究院 自动交换光网络中连接的增强型主备保护的实现方法
CN101079795A (zh) * 2007-07-27 2007-11-28 杭州华三通信技术有限公司 数据转发方法及转发设备
CN102143065A (zh) * 2011-02-09 2011-08-03 华为技术有限公司 一种故障保护方法及设备
CN102739308A (zh) * 2012-06-12 2012-10-17 中兴通讯股份有限公司 智能光网络中保护业务的恢复

Also Published As

Publication number Publication date
CN102739308A (zh) 2012-10-17

Similar Documents

Publication Publication Date Title
CN100558057C (zh) 一种双向转发检测会话的处理方法及装置
JP6311612B2 (ja) 通信システム、制御装置、その制御方法及びプログラム
US9203732B2 (en) Recovery of traffic in a connection-oriented network
US20020171886A1 (en) Automatic control plane recovery for agile optical networks
KR100537746B1 (ko) 광인터넷에서의 MPλS 보호 및 절체방법
EP3386156B1 (en) Failure recovery method, device and storage medium
US20040107382A1 (en) Method for network layer restoration using spare interfaces connected to a reconfigurable transport network
CA2568219C (en) Method and devices for implementing group protection in mpls network
JP2009303092A (ja) ネットワーク装置および回線切替方法
US20150186202A1 (en) Method and Device for Sending Inter-Domain Fault Information
JP7405494B2 (ja) 障害がある多層リンク復旧方法およびコントローラ
WO2011140890A1 (zh) 实现快速重路由的方法及装置
KR20150002474A (ko) 통신 네트워크에서 장애 복구 방법
WO2013185583A1 (zh) 智能光网络中保护业务的恢复方法和装置
US9912527B2 (en) Communication device, communication system, method for determining path, and program
US20140040476A1 (en) Method and system for network restructuring in multilayer network
WO2014101125A1 (zh) 聚合组链路协商方法、装置和系统
KR20130070171A (ko) 패킷-광 통합 스위칭 시스템 및 그것의 보호 절체 방법
JP5518771B2 (ja) 冗長ネットワークシステム、終端装置及び中継点隣接装置
JP4541367B2 (ja) 故障救済方法およびパケット通信装置
JP2015186134A (ja) 通信システム及びノード
US10862706B2 (en) Detection of node isolation in subtended ethernet ring topologies
JP4717796B2 (ja) ノード装置およびパス設定方法
WO2019100267A1 (zh) 光网络单元的网络接口切换方法及光网络单元
JP4377822B2 (ja) 故障箇所発見方法および故障箇所発見装置

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: 13803629

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13803629

Country of ref document: EP

Kind code of ref document: A1