WO2012171397A1 - 一种链路保护方法及装置 - Google Patents

一种链路保护方法及装置 Download PDF

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Publication number
WO2012171397A1
WO2012171397A1 PCT/CN2012/073549 CN2012073549W WO2012171397A1 WO 2012171397 A1 WO2012171397 A1 WO 2012171397A1 CN 2012073549 W CN2012073549 W CN 2012073549W WO 2012171397 A1 WO2012171397 A1 WO 2012171397A1
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Prior art keywords
link
group
protection
module
service data
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PCT/CN2012/073549
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English (en)
French (fr)
Inventor
刘敏
Original Assignee
中兴通讯股份有限公司
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Publication of WO2012171397A1 publication Critical patent/WO2012171397A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/28Routing or path finding of packets in data switching networks using route fault recovery
    • 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

Definitions

  • the present invention relates to the field of optical communications, and in particular, to a link protection method and apparatus. Background technique
  • the work of the protection link bearer service in the service group can only be completed by the intra-group link, that is, the intra-group link in the service group carries the service. Also responsible for protecting business bearers.
  • the existing configuration cannot meet the purpose of service protection.
  • the service data carried by the link in the failed group will be discarded because it cannot be carried, resulting in loss of service data.
  • the embodiment of the present invention provides a link protection method, which is used to solve the problem that the link protection cannot be effectively performed in the case where the intra-group link of the service group is used as the protection link in the prior art.
  • the configured protection link is used to carry the service data of the link in the failed group.
  • a link protection device provided by an embodiment of the present invention includes: a configuration module and a protection module;
  • a configuration module configured to configure a service group and configure an intra-group link for carrying service group data. And configuring at least one out-of-group link as a protection link of the intra-group link;
  • the protection module is configured to carry the service data by using the intra-group link.
  • the configured protection link is used to carry the service data of the failed intra-group link.
  • the beneficial effects of the embodiments of the present invention include: a link protection method provided by the embodiment of the present invention, where the link outside the group is a protection link of the service group, so that the link in the service group is faulty when the bearer service data fails.
  • the protection link replaces the faulty intra-group link bearer service data, because the configured out-of-group link only works when the intra-group link fails, otherwise it is in an idle state, so the intra-group chain of the service group can be avoided.
  • the protection link is
  • FIG. 1 is a flowchart of a method for link protection according to an embodiment of the present invention
  • FIG. 2 is a flowchart of performing protection switching when a link in a group of a local end carrying service data fails in a link protection method according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a link protection method according to an embodiment of the present invention, in which a link in a local end group that detects a fault is restored to normal;
  • FIG. 4 is a flowchart of using a protection link for protection switching when a link in a peer group carrying a service data fails in a link protection method according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a link protection method according to an embodiment of the present invention, when a peer detects that a link in a group fails to be normal;
  • FIG. 6 is a network architecture diagram of an IMA group protection switching according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a device for protecting a link according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a protection link provided by an embodiment of the present invention.
  • One of the schematic structural diagrams of the protection module in the device is a network architecture diagram of an IMA group protection switching according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a device for protecting a link according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a protection link provided by an embodiment of the present invention.
  • One of the schematic structural diagrams of the protection module in the device is a network architecture diagram of an IMA group protection switching according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a device for protecting a link according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a protection link provided by an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of a protection module in a device for protecting a link according to an embodiment of the present invention.
  • Intent 2 is a schematic structural diagram of a protection module in a device for protecting a link according to an embodiment of the present invention.
  • the link protection method provided by the embodiment of the present invention is as shown in FIG. 1.
  • the specific process includes: Step S101: Configure a service group and an intra-group link for carrying service group data, and configure at least one out-of-group link as a group. Protection link of the inner link;
  • Step S102 Use the intra-group link to carry service data.
  • Step S103 When the link between the local end or the peer group that carries the service data fails, the configured protection link is used to carry the service data of the intra-group link that is faulty.
  • At least one out-of-group link is configured as a protection link of the intra-group link, and specifically, one or more protection links, intra-group links, and protection links may be configured for each intra-group link. It can be - a correspondence, a one-to-many relationship or a many-to-one relationship.
  • the following includes: Configuring the priority of each protection link of the link in the group.
  • step S103 the unprotected and highest priority or higher protection links of the plurality of protection links can be used to carry the service data of the failed intra-group link.
  • the priority may be set according to the quality of the link, the bandwidth, and the like, or may be set in other manners, and details are not described herein.
  • the priority of each protection link in the configuration group in the embodiment of the present invention can be selected when a plurality of protection links are configured to perform protection switching, and the protection with the highest priority When the link is occupied, the priority can be selected according to the set priority.
  • the same link protection function is provided. Simple, for the description of step S103 above, mainly The link protection process performed by the local end is described. Those skilled in the art can infer that the peer end also has a corresponding process according to the link protection process performed by the local end.
  • the foregoing step S103 is further divided into two cases.
  • the configured protection link is used to carry the fault in the local end group.
  • the case of the service data of the link in the peer group when the link in the peer group that is carrying the service data fails, and the service data of the link in the peer group that has failed is used.
  • step S103 The following describes the specific process of step S103 in the first case. As shown in FIG. 2, the process specifically includes:
  • the protection link corresponding to the link in the local end group that has failed is started.
  • step S203 the negotiation process of the protection link with the peer end, that is, the initiated protection link, sends a negotiation request to the peer protection link connected to the peer end, and the two negotiate the link, and the specific negotiation process belongs to The scope of the prior art will not be described here.
  • the activated protection link is used to carry the service data of the link in the local end group that has failed.
  • the protection link of the local end and the protection link of the connected peer end transmit the service data of the link in the local end group that has failed, and the local end continues to detect the faulty local end group. Whether the inner link is back to normal.
  • the method for link protection provided by the embodiment of the present invention, as shown in FIG. 3, further includes the following steps:
  • S301 Send an intra-group link of other normal bearer service data in the local service group to the peer end. Sending the recovery information, where the recovery information carries the identifier of the link in the local end group that is restored to normal;
  • step S103 The following describes the specific process of step S103 in the second case. As shown in FIG. 4, the process specifically includes:
  • the intra-link of the normal bearer service data in the local service group receives the fault information sent by the peer end, where the fault information carries the identifier of the link in the peer group that has failed;
  • the service data of the link in the local end group is carried by using the protection link corresponding to the link in the local end group.
  • the protection link of the peer end and the connected protection link of the local end start to transmit the service data of the link in the failed peer group, and the peer end continues to detect the opposite end of the fault. Whether the link in the group is back to normal.
  • the method for link protection provided by the embodiment of the present invention, as shown in FIG. 5, further includes the following steps:
  • the intra-link of the normal bearer service data in the local service group receives the recovery information sent by the peer end, where the recovery information carries the identifier of the link in the peer group that is restored to normal;
  • the used link in the local end group is used to re-transmit the service data.
  • the following specific example illustrates the foregoing link protection method provided by the embodiment of the present invention.
  • the network architecture of the example is shown in Figure 6.
  • the board B on the local end has links C, D, E, and F.
  • the board B on the peer end has links C, D, and E.
  • the F, the links C and C, the links D and D', the links E and ⁇ ', and the links F and F' are respectively connected.
  • the specific process of performing link protection in the example includes the following steps:
  • Step 1 On the local end, configure the IMA group through the master control, and bind the link C, link D, and link E on the board B to the IMA group to carry the IMA intra-group link for carrying the IMA service data. And configure an out-of-group link F on the board B as the protection link of the link in the IMA group or configure the link F and link G on the board B as the protection link of the link in the IMA group;
  • the terminal is also configured according to this;
  • the master can set the protection link F and the hardware according to the link quality, bandwidth, and other hardware conditions.
  • Priority of G For example, the priority of the protection link F is one level, and the priority of the protection link G is two levels. Thus, when the link C in the IMA group fails, the priority is high.
  • the protection link F carries the service data of the link C in the failed IMA group. If the protection link F is already occupied, the protection link G with the lower priority is used to carry the service of the link C in the failed IMA group. data.
  • Step 2 The local end and the peer end use the configured IMA group links C, D, and E to carry the IMA.
  • Business data
  • the local end and the peer end perform link negotiation on the links in each IMA group. After the negotiation is successful, the IMA service data can be carried.
  • Step 3 When the link C of the local IMA group carrying the IMA service data is faulty, the local end initiates the local IMA protection link F corresponding to the link C in the local IMA group where the fault occurs.
  • Step 4 The local end sends the fault information to the peer end through the intra-group link D or E of the normal bearer service data in the IMA group.
  • the fault information carries the identifier of the link C in the local IMA group that has failed.
  • Step 5 The peer receives the fault information, and searches for the link C in the peer IMA group connected to it according to the identifier of the link C in the local IMA group where the fault occurs.
  • Step 6 The peer end starts with the peer end IMA group link C, and the corresponding peer IMA protection link
  • Step 7 The local end and the peer end negotiate the link of the IMA protection link F and F.
  • Step 8 After the negotiation succeeds, the local end uses the IMA protection link F to carry the IMA service data of the link C in the failed IMA group.
  • the instance When the master detects that the link C in the local IMA group is faulty, the instance also includes the following steps:
  • Step 9 The local end sends the recovery information to the peer end through the intra-group link D or E of the other normal service data in the IMA group.
  • the recovery information carries the identifier of the link C in the local IMA group that has been restored to normal.
  • Step 10 The peer receives the recovery information, and searches for the link C in the peer IMA group connected to it according to the identity of the link C in the local IMA group that is restored to normal.
  • Step 11 The local end and the peer end negotiate the link between the links C and C in the IMA group, and after the link negotiation succeeds, the link data C in the local IMA group is used to re-transmit the service data.
  • Step 12 The local end and the peer end close the IMA protection links F and F.
  • the embodiment of the present invention further provides a device for link protection.
  • the device includes: a configuration module 701 and a protection module 702;
  • the configuration module 701 is configured to configure a service group and an intra-group link configured to carry the service group data, and configure at least one out-group link to be a protection link of the intra-group link.
  • the protection module 702 is configured to use the intra-group link to carry the service data.
  • the configured protection link is used to carry the service of the failed intra-group link. data.
  • the protection module 702 in the link protection device provided by the embodiment of the present invention, as shown in FIG. 8, specifically includes:
  • the detecting sub-module 7021 is configured to detect whether a link in the local end group carrying the service data is faulty.
  • the first activation sub-module 7022 is configured to: when the detection sub-module 7021 detects that the link in the local end group carrying the service data is faulty, start a protection link corresponding to the link in the local end group that has failed;
  • the sending sub-module 7023 is configured to send, by using the intra-group link of the normal bearer service data in the local service group, the fault information to the peer end, where the fault information carries the identifier of the link in the local end group that has failed;
  • the first negotiation sub-module 7024 is configured to negotiate with the opposite end to protect the link
  • the first service bearer control sub-module 7025 is configured to: after the first negotiation sub-module 7024 negotiates successfully, use the protection link initiated by the first boot sub-module 7022 to carry the service data of the link in the local end group that has failed.
  • the detecting sub-module 7021 in the protection module 702 is further configured to detect whether the link in the local end group that has failed is normal.
  • the sending submodule 7023 is further configured to detect that the submodule 7021 detects the faulty local end group. When the link is restored, the information is sent to the peer through the intra-group link of the other normal bearer service data in the local service group. The information about the link in the local end group is restored.
  • the module 7024 is further configured to perform link negotiation on the intra-peer group link that is connected to the link in the local end group that is restored to the normal state.
  • the first service bearer control sub-module 7025 is further configured to: after the negotiation of the first negotiation sub-module 7024 is successful, re-transmit the service data by using the link in the local end group that is restored to normal, and close the link corresponding to the link in the local end group that is restored to the normal state. Protection link.
  • the protection module 702 in the link protection device provided by the embodiment of the present invention specifically includes:
  • the receiving sub-module 7026 is configured to: when the link in the peer group that carries the service data is faulty, the intra-group link that normally carries the service data in the local service group receives the fault information sent by the peer end, where the fault information carries the pair The identifier of the link in the peer group where the fault occurs;
  • the sub-module 7027 is configured to search for a link in the local group connected to the peer group by using an identifier of the link in the peer group that is faulty;
  • the second promoter module 7028 is configured to start a protection link corresponding to the found link in the local group
  • a second negotiation sub-module 7029 configured to negotiate with the opposite end to protect the link
  • the second service bearer control sub-module 7030 is configured to carry the service data of the link in the local end group by using the protection link corresponding to the link in the local end group after the negotiation of the second negotiation sub-module 7029 is successful. That is, the second service bearer control sub-module 7030 is configured to use the protection link initiated by the second boot sub-module 7028 to carry the service data of the link in the local end group after the negotiation of the second negotiation sub-module 7029 is successful.
  • the receiving sub-module 7026 in the foregoing protection module 702 is further configured to receive, by the intra-group link of the normal bearer service data in the local service group, the recovery information sent by the opposite end, where the recovery information carries the peer group that returns to normal.
  • the identity of the inner link is further configured to search for a link in the local end group connected thereto by restoring the identifier of the link in the normal peer group;
  • the second negotiation sub-module 7029 is further configured to perform link negotiation with the link in the normal peer group.
  • the second service bearer control sub-module 7030 is further configured to: after the negotiation of the second negotiation sub-module 7029 is successful, use the found link in the local end group to re-transmit the service data, and close the protection chain corresponding to the link in the local end group. road.
  • the configuration module 701 of the foregoing link protection device is further configured to configure a priority of each protection link of the link in the group; correspondingly, the protection module 702 is specifically configured to use at least the configured The unoccupied and highest priority protection link in a protection link carries the service data of the failed intra-group link.
  • a link protection method is provided in the embodiment of the present invention.
  • the link in the service group fails when the bearer service data fails.
  • the internal link carries the service data.
  • the configured out-of-group link works only when the link in the group fails. Otherwise, it is in the idle state. Therefore, the intra-group link of the service group can be avoided as the protection link in the prior art.
  • both the bearer service and the protection link cannot effectively perform link protection.

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Abstract

本发明公开了一种链路保护方法,包括:配置业务组和用于承载业务组数据的组内链路,并配置至少一条组外链路为组内链路的保护链路;使用组内链路承载业务数据;当承载业务数据的本端或对端组内链路发生故障时,使用所配置的保护链路承载发生故障的组内链路的业务数据。相应地,本发明还公开了一种链路保护装置。本发明可避免现有技术中以业务组的组内链路作为保护链路的情况下,保护链路既要承载业务又要作为保护链路导致无法有效地进行链路保护的问题。

Description

一种链路保护方法及装置 技术领域
本发明涉及光通信领域, 尤其涉及一种链路保护方法及装置。 背景技术
在现有的包传送网 ( PTN, Packet Translate Network )设备中, 业务组 内的保护链路承载业务的工作都只能由组内链路完成, 即在业务组的组内 链路既承载业务也负责保护业务承载。 这样, 当业务组内绑定的某一条或 几条链路存在故障时, 且业务组内各链路承载的业务为满流量的情况下, 现有的配置无法达到业务保护的目的, 某些发生故障的组内链路承载的业 务数据就会因为无法得到承载而被丟弃, 造成业务数据损失。 发明内容
本发明实施例提供了一种链路保护方法, 用以解决现有技术中以业务 组的组内链路作为保护链路的情况下, 无法有效进行链路保护的问题。
本发明实施例提供的一种链路保护方法, 所述方法包括:
配置业务组和用于承载业务组数据的组内链路, 并配置至少一条组外 链路为组内链路的保护链路;
使用组内链路承载业务数据;
当承载业务数据的本端或对端组内链路发生故障时, 使用所配置的保 护链路承载发生故障的组内链路的业务数据。
本发明实施例提供的一种链路保护装置, 所述装置包括: 配置模块和 保护模块;
配置模块, 用于配置业务组和配置用于承载业务组数据的组内链路, 并配置至少一条组外链路为组内链路的保护链路;
保护模块, 用于使用组内链路承载业务数据, 当承载业务数据的本端 或对端组内链路发生故障时, 使用所配置的保护链路承载发生故障的组内 链路的业务数据。
本发明实施例的有益效果包括: 本发明实施例提供的一种链路保护方 法, 通过配置组外链路为业务组的保护链路, 使得业务组组内链路在承载 业务数据发生故障时, 保护链路代替发生故障的组内链路承载业务数据, 由于配置的组外链路只有在组内链路发生故障时才工作, 否则处于空闲状 态, 因此可避免以业务组的组内链路作为保护链路的情况下, 保护链路既
附图说明
图 1为本发明实施例提供的链路保护的方法的流程图;
图 2为本发明实施例提供的链路保护方法中, 本端承载业务数据的组 内链路发生故障时进行保护倒换的流程图;
图 3 为本发明实施例提供的链路保护方法中检测到发生故障的本端组 内链路恢复正常时的流程图;
图 4为本发明实施例提供的链路保护方法中, 承载业务数据的对端组 内链路发生故障时使用保护链路进行保护倒换的流程图;
图 5 为本发明实施例提供的链路保护方法中对端检测到发生故障的组 内链路恢复正常时的流程图;
图 6为本发明实施例提供的 IMA组保护倒换的网络架构图; 图 7为本发明实施例提供的保护链路的装置的组成结构示意图; 图 8 为本发明实施例提供的保护链路的装置中保护模块的组成结构示 意图之一;
图 9为本发明实施例提供的保护链路的装置中保护模块的组成结构示 意图之二 具体实施方式
下面结合附图, 对本发明实施例提供的链路保护方法及装置的具体实 施方式进行评细地说明。
本发明实施例提供的链路保护方法, 如图 1所示, 具体流程包括: 步驟 S101、 配置业务组和用于承载业务组数据的组内链路, 并配置至 少一条组外链路为组内链路的保护链路;
步驟 S102、 使用组内链路承载业务数据;
步驟 S103、 当承载业务数据的本端或对端组内链路发生故障时, 使用 所配置的保护链路承载发生故障的组内链路的业务数据。
其中, 步驟 S101中配置至少一条组外链路为组内链路的保护链路, 具 体来说可以为每一条组内链路配置一条或多条保护链路, 组内链路和保护 链路可以是——对应关系, 一对多的关系或者多对一的关系。
并且, 如果为组内链路配置多条保护链路, 还包括: 配置组内链路各 保护链路的优先级。
这样, 在步驟 S103中, 就可以使用多条保护链路中未被占用的且优先 级最高或较高的保护链路承载发生故障的组内链路的业务数据。
此外, 优先级可以根据链路质量的好坏、 带宽等条件来设定, 或者采 用其他方式设定, 在此不再赘述。
本发明实施例中提供的配置组内链路各保护链路的优先级, 能在配置 多条保护链路时选择较佳的一条保护链路进行保护倒换, 并且当优先级最 高的那一条保护链路被占用时, 还能够根据设置的优先级, 选择优先级次 在本发明实施例中, 由于本端和对端在网络中是对称的, 都具有同样 的链路保护的功能, 为了说明的简便, 对于上述步驟 S103的说明, 主要以 本端所执行的链路保护流程进行说明, 本领域的技术人员可以根据本端所 执行的链路保护流程, 推知对端也具有相应的流程。
具体地, 上述步驟 S103在具体实施时, 又分为两种情况, 一种是本端 承载业务数据的组内链路发生故障时, 使用所配置的保护链路承载发生故 障的本端组内链路的业务数据的情况; 另一种为承载业务数据的对端组内 链路发生故障时, 使用所配置的保护链路承载发生故障的对端组内链路的 业务数据的情况。
下面对第一种情况下, 步驟 S103的具体流程进行说明, 如图 2所示, 该流程具体包括:
5201、 本端承载业务数据的组内链路发生故障时, 启动与发生故障的 本端组内链路对应的保护链路;
5202、 通过本端业务组内其他正常承载业务数据的组内链路向对端发 送故障信息, 该故障信息携带有发生故障的本端组内链路的标识;
5203、 与对端进行保护链路的协商;
在本步驟 S203中, 与对端进行保护链路的协商过程, 即启动的保护链 路, 向与之相连的对端保护链路发出协商请求, 两者进行链路的协商, 具 体协商过程属于现有技术的范畴, 在此不再赘述。
5204、 在链路协商成功后, 使用已启动的保护链路承载发生故障的本 端组内链路的业务数据。
经过上述步驟 S201~S204之后, 本端的保护链路和相连的对端的保护 链路开始传输发生故障的本端组内链路的业务数据, 并且, 本端还会继续 检测发生故障的本端组内链路是否恢复正常。
如果本端检测到发生故障的组内链路恢复正常时, 本发明实施例提供 的链路保护的方法, 如图 3所示, 还包括以下步驟:
S301、 通过本端业务组内其他正常承载业务数据的组内链路向对端发 送恢复信息, 该恢复信息携带有恢复正常的本端组内链路的标识;
5303、 在链路协商成功后, 使用恢复正常的本端组内链路重新承载业 务数据;
5304、 关闭恢复正常的本端组内链路对应的保护链路。
经过上述步驟 S301~S304之后, 之前处于工作状态的保护链路, 重新 处于空闲状态。
下面再对第二种情况下,步驟 S103的具体流程进行说明,如图 4所示, 该流程具体包括:
S401、 本端业务组内正常承载业务数据的组内链路接收对端发送的故 障信息, 该故障信息携带有发生故障的对端组内链路的标识;
5402、 通过发生故障的对端组内链路的标识, 查找与之相连的本端组 内链路;
5403、 启动与查找到的本端组内链路对应的保护链路;
5404、 与对端进行保护链路的协商;
5405、 在协商成功后, 使用查找到的本端组内链路对应的保护链路承 载该本端组内链路的业务数据。
经过上述步驟 S401~S405之后, 对端的保护链路和相连的本端的保护 链路开始传输发生故障的对端组内链路的业务数据, 并且, 对端还会继续 检测发生故障的该对端组内链路是否恢复正常。
如果对端检测到发生故障的组内链路恢复正常时, 本发明实施例提供 的链路保护的方法, 如图 5所示, 还包括以下步驟:
S501、 本端业务组内正常承载业务数据的组内链路接收对端发送的恢 复信息, 该恢复信息携带有恢复正常的对端组内链路的标识;
S502、 通过恢复正常的对端组内链路的标识, 查找与之相连的本端组 内链路;
5503、 与恢复正常的对端组内链路进行链路协商;
5504、 在链路协商成功后使用查找到的本端组内链路重新承载业务数 据;
5505、 关闭本端组内链路对应的保护链路。
经过上述步驟 S501~S505之后, 之前处于工作状态的保护链路, 重新 处于空闲状态。
下面一个具体的实例说明本发明实施例提供的上述链路保护方法。 在该实例的网络架构如图 6所示, 本端的单板 B上具有链路 C、 D、 E 和 F, 同样地, 对端的单板 B,上具有链路 C,、 D,、 E,和 F,, 链路 C与 C,、 链路 D和 D'、 链路 E和 Ε' , 链路 F和 F'分别相连, 该实例进行链路保护 的具体流程包括以下步驟:
步驟一, 在本端, 通过主控配置 IMA组, 并为该 IMA组绑定单板 B 上的链路 C、链路 D和链路 E为用于承载 IMA业务数据的 IMA组内链路, 并且配置单板 B上的一条组外链路 F作为 IMA组内链路的保护链路或者配 置单板 B上的链路 F和链路 G作为 IMA组内链路的保护链路;对端也按此 配置;
其中,当配置单板 B上的链路 F和链路 G作为 IMA组内链路的保护链 路时,主控可以根据链路质量的好坏、 带宽等硬件条件分别设置保护链路 F 和 G的优先级; 例如: 配置保护链路 F的优先级为一级, 保护链路 G的优 先级为二级; 这样, 当 IMA组内链路 C发生故障时, 就可以使用优先级高 的保护链路 F承载发生故障的 IMA组内链路 C的业务数据,如果保护链路 F已经被占用, 则使用优先级次之的保护链路 G承载发生故障的 IMA组内 链路 C的业务数据。
步驟二: 本端和对端使用配置的 IMA组内链路 C、 D和 E承载 IMA 业务数据;
具体地, 在 IMA组内链路 C、 D和 E承载 IMA业务数据之前, 本端和 对端要对各 IMA组内链路进行链路协商,协商成功后才能承载 IMA业务数 据。
步驟三: 当本端的承载 IMA业务数据的 IMA组内链路 C发生故障时, 本端启动与发生故障的本端 IMA组内链路 C对应的本端 IMA保护链路 F;
步驟四: 本端通过 IMA组内其他正常承载业务数据的组内链路 D或 E 向对端发送故障信息, 该故障信息携带有发生故障的本端 IMA组内链路 C 的标识;
步驟五: 对端接收到故障信息, 根据发生故障的本端 IMA组内链路 C 的标识查找与之相连的对端 IMA组内链路 C;
步驟六: 对端启动与对端 IMA组内链路 C,对应的对端 IMA保护链路
F,;
步驟七: 本端与对端进行 IMA保护链路 F和 F的链路协商;
步驟八:在协商成功后,本端使用 IMA保护链路 F承载发生故障的 IMA 组内链路 C的 IMA业务数据。
当主控检测到发生故障的本端 IMA组内链路 C恢复正常时,该实例还 包括以下步驟:
步驟九: 本端通过 IMA组内其他正常^载业务数据的组内链路 D或 E 向对端发送恢复信息, 该恢复信息携带有已恢复正常的本端 IMA组内链路 C的标识;
步驟十: 对端接收到恢复信息, 根据恢复正常的本端 IMA组内链路 C 的标识查找与之连接的对端 IMA组内链路 C;
步驟十一: 本端与对端进行 IMA组内链路 C和 C,的链路协商,并在链 路协商成功后, 使用本端 IMA组内链路 C重新承载业务数据; 步驟十二: 本端和对端关闭 IMA保护链路 F和 F,。
本发明实施例还提供了一种链路保护的装置, 如图 7所示, 所述装置 包括: 配置模块 701和保护模块 702;
配置模块 701 , 用于配置业务组和配置用于承载业务组数据的组内链 路, 并配置至少一条组外链路为组内链路的保护链路;
保护模块 702, 用于使用组内链路承载业务数据, 当承载业务数据的本 端或对端组内链路发生故障时, 使用所配置的保护链路承载发生故障的组 内链路的业务数据。
进一步地, 本端承载业务数据的组内链路发生故障时, 本发明实施例 提供的链路保护装置中的保护模块 702, 如图 8所示, 具体包括:
检测子模块 7021 , 用于检测承载业务数据的本端组内链路是否发生故 障;
第一启动子模块 7022,用于当所属检测子模块 7021检测到承载业务数 据的本端组内链路发生故障时, 启动与发生故障的本端组内链路对应的保 护链路;
发送子模块 7023, 用于通过本端业务组内其他正常承载业务数据的组 内链路向对端发送故障信息, 该故障信息携带有发生故障的本端组内链路 的标识;
第一协商子模块 7024, 用于与对端进行保护链路的协商;
第一业务承载控制子模块 7025,用于在第一协商子模块 7024协商成功 后, 使用第一启动子模块 7022启动的保护链路承载发生故障的本端组内链 路的业务数据。
对应地, 上述保护模块 702中的检测子模块 7021 , 还用于检测发生故 障的本端组内链路是否恢复正常;
发送子模块 7023,还用于检测子模块 7021检测到发生故障的本端组内 链路恢复正常时, 通过本端业务组内其他正常承载业务数据的组内链路向 对端发送恢复信息, 该恢复信息携带有恢复正常的本端组内链路的标识; 第一协商子模块 7024, 还用于与恢复正常的本端组内链路相连的对端 组内链路进行链路协商;
第一业务承载控制子模块 7025 ,还用于在第一协商子模块 7024协商成 功后, 使用恢复正常的本端组内链路重新承载业务数据, 并关闭恢复正常 的本端组内链路对应的保护链路。
进一步地, 对端承载业务数据的组内链路发生故障时, 本发明实施例 提供的链路保护装置中的保护模块 702 , 如图 9所示, 具体包括:
接收子模块 7026, 用于当承载业务数据的对端组内链路发生故障时, 本端业务组内正常承载业务数据的组内链路接收对端发送的故障信息, 该 故障信息携带有对端发生故障的对端组内链路的标识;
查找子模块 7027, 用于通过发生故障的对端组内链路的标识, 查找与 之相连的本端组内链路;
第二启动子模块 7028, 用于启动与查找到的本端组内链路对应的保护 链路;
第二协商子模块 7029, 用于与对端进行保护链路的协商;
第二业务承载控制子模块 7030,用于在第二协商子模块 7029协商成功 后, 使用查找到的本端组内链路对应的保护链路承载该本端组内链路的业 务数据。 也就是说, 第二业务承载控制子模块 7030, 用于在第二协商子模 块 7029协商成功后, 使用第二启动子模块 7028启动的保护链路承载该本 端组内链路的业务数据。
对应地, 上述保护模块 702中的接收子模块 7026, 还用于本端业务组 内正常承载业务数据的组内链路接收对端发送的恢复信息, 该恢复信息携 带有恢复正常的对端组内链路的标识; 查找子模块 7027, 还用于通过恢复正常的对端组内链路的标识, 查找 与之相连的本端组内链路;
第二协商子模块 7029, 还用于与恢复正常的对端组内链路进行链路协 商;
第二业务承载控制子模块 7030,还用于在第二协商子模块 7029协商成 功后, 使用查找到的本端组内链路重新承载业务数据, 并关闭本端组内链 路对应的保护链路。
上述图 8和图 9所示的是保护模块 702的两种结构, 这两种结构可以 在同一网络设备中同时实现。
进一步地, 本发明实施例提供的上述链路保护装置的配置模块 701 ,还 用于配置组内链路各保护链路的优先级; 相应地, 保护模块 702, 具体用于 使用所配置的至少一条保护链路中未被占用的且优先级最高的保护链路承 载发生故障的组内链路的业务数据。
本发明实施例提供的一种链路保护方法, 通过配置组外链路为业务组 的保护链路, 使得业务组组内链路在承载业务数据发生故障时, 保护链路 代替发生故障的组内链路承载业务数据, 由于配置的组外链路只有在组内 链路发生故障时才工作, 否则处于空闲状态, 因此可避免现有技术中以业 务组的组内链路作为保护链路的情况下, 保护链路既要承载业务又要作为 保护链路导致无法有效地进行链路保护的问题。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离 本发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权 利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在 内。

Claims

权利要求书
1、 一种链路保护方法, 其特征在于, 所述方法包括:
配置业务组和用于承载业务组数据的组内链路, 并配置至少一条组外 链路为组内链路的保护链路;
使用组内链路承载业务数据;
当承载业务数据的本端或对端组内链路发生故障时, 使用所配置的保 护链路承载发生故障的组内链路的业务数据。
2、 如权利要求 1所述的方法, 其特征在于, 当承载业务数据的本端组 内链路发生故障时, 所述使用所配置的保护链路承载发生故障的组内链路 的业务数据, 包括:
启动与发生故障的本端组内链路对应的保护链路;
通过本端业务组内其他正常承载业务数据的组内链路向对端发送故障 信息, 所述故障信息携带有所述发生故障的本端组内链路的标识;
与对端进行保护链路的协商, 并在协商成功后, 使用已启动的所述保 护链路承载所述发生故障的本端组内链路的业务数据。
3、 如权利要求 1或 2所述的方法, 其特征在于, 所述方法还包括: 当检测到发生故障的本端组内链路恢复正常时, 通过本端业务组内其 他正常承载业务数据的组内链路向对端发送恢复信息, 所述恢复信息携带 有恢复正常的本端组内链路的标识; 并在链路协商成功后使用所述恢复正常的本端组内链路重新承载业务数 据, 并关闭所述恢复正常的本端组内链路对应的保护链路。
4、 如权利要求 1所述的方法, 其特征在于, 当承载业务数据的对端组 内链路发生故障时, 所述使用所配置的保护链路承载发生故障的组内链路 的业务数据, 包括: 本端业务组内正常承载业务数据的组内链路接收对端发送的故障信 息, 所述故障信息携带有发生故障的对端组内链路的标识;
通过所述发生故障的对端组内链路的标识, 查找与之相连的本端组内 链路;
启动与查找到的本端组内链路对应的保护链路;
与对端进行保护链路的协商, 并在协商成功后, 使用已启动的保护链 路承载所述本端组内链路的业务数据。
5、 如权利要求 1或 4所述的方法, 其特征在于, 所述方法还包括: 本端业务组内正常承载业务数据的组内链路接收对端发送的恢复信 息, 所述恢复信息携带有恢复正常的对端组内链路的标识;
通过所述恢复正常的对端组内链路的标识, 查找与之相连的本端组内 链路;
与恢复正常的对端组内链路进行链路协商, 并在链路协商成功后使用 查找到的所述本端组内链路重新承载业务数据, 并关闭所述本端组内链路 对应的保护链路。
6、 如权利要求 1、 2或 4所述的方法, 其特征在于,
所述配置至少一条组外链路为组内链路的保护链路之后, 所述方法还 包括: 配置组内链路各保护链路的优先级;
所述使用所配置的保护链路承载发生故障的组内链路的业务数据, 包 括: 使用所配置的至少一条保护链路中未被占用的且优先级最高的保护链 路承载发生故障的组内链路的业务数据。
7、 一种链路保护装置, 其特征在于, 所述装置包括: 配置模块和保护 模块;
所述配置模块, 用于配置业务组和配置用于承载业务组数据的组内链 路, 并配置至少一条组外链路为组内链路的保护链路; 所述保护模块, 用于使用组内链路承载业务数据, 当承载业务数据的 本端或对端组内链路发生故障时, 使用所配置的保护链路承载发生故障的 组内链路的业务数据。
8、 如权利要求 7所述的装置, 其特征在于, 所述保护模块包括: 检测子模块, 用于检测承载业务数据的本端组内链路是否发生故障; 第一启动子模块, 用于当所属检测子模块检测到承载业务数据的本端 组内链路发生故障时, 启动与发生故障的本端组内链路对应的保护链路; 发送子模块, 用于通过本端业务组内其他正常承载业务数据的组内链 路向对端发送故障信息, 所述故障信息携带有所述发生故障的本端组内链 路的标识;
第一协商子模块, 用于与对端进行保护链路的协商;
第一业务承载控制子模块, 用于在第一协商子模块协商成功后, 使用 所述第一启动子模块启动的保护链路承载所述发生故障的本端组内链路的 业务数据。
9、 如权利要求 8所述的装置, 其特征在于, 所述检测子模块, 还用于 检测发生故障的本端组内链路是否恢复正常;
所述发送子模块, 还用于在所述检测子模块检测到发生故障的本端组 内链路恢复正常时, 通过本端业务组内其他正常承载业务数据的组内链路 向对端发送恢复信息, 所述恢复信息携带有恢复正常的本端组内链路的标 识;
所述第一协商子模块, 还用于与所述恢复正常的本端组内链路相连的 对端组内链路进行链路协商;
所述第一业务承载控制子模块, 还用于在第一协商子模块协商成功后, 使用所述恢复正常的本端组内链路重新承载业务数据, 并关闭所述恢复正 常的本端组内链路对应的保护链路。
10、 如权利要求 7所述的装置, 其特征在于, 所述保护模块包括: 接收子模块, 用于当承载业务数据的对端组内链路发生故障时, 本端 业务组内正常承载业务数据的组内链路接收对端发送的故障信息, 所述故 障信息携带有对端发生故障的对端组内链路的标识;
查找子模块, 用于通过所述发生故障的对端组内链路的标识, 查找与 之相连的本端组内链路;
第二启动子模块, 用于启动与查找到的本端组内链路对应的保护链路; 第二协商子模块, 用于与对端进行保护链路的协商;
第二业务承载控制子模块, 用于在第二协商子模块协商成功后, 使用 所述第二启动子模块启动的保护链路承载所述本端组内链路的业务数据。
11、 如权利要求 10所述的装置, 其特征在于,
所述接收子模块, 还用于本端业务组内正常承载业务数据的组内链路 接收对端发送的恢复信息, 所述恢复信息携带有恢复正常的对端组内链路 的标识;
所述查找子模块, 还用于通过所述恢复正常的对端组内链路的标识, 查找与之相连的本端组内链路;
所述第二协商子模块, 还用于与恢复正常的对端组内链路进行链路协 商;
所述第二业务承载控制子模块, 还用于在第二协商子模块协商成功后, 使用查找到的所述本端组内链路重新承载业务数据, 并关闭所述本端组内 链路对应的保护链路。
12、 如权利要求 7至 11任一项所述的装置, 其特征在于,
所述配置模块, 还用于配置组内链路各保护链路的优先级;
所述保护模块, 用于使用所配置的至少一条保护链路中未被占用的且 优先级最高的保护链路承载发生故障的组内链路的业务数据。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3537670A4 (en) * 2016-12-02 2019-09-11 Huawei Technologies Co., Ltd. PROTECTIVE SWITCHING, NETWORK DEVICE AND SYSTEM
EP3618350A4 (en) * 2017-06-27 2020-04-08 Huawei Technologies Co., Ltd. PROTECTION SWITCHING METHOD, DEVICE AND SYSTEM
US11297000B2 (en) 2017-09-28 2022-04-05 Huawei Technologies Co., Ltd. Data transmission method, apparatus, and system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107465611A (zh) * 2017-09-05 2017-12-12 北京东土科技股份有限公司 Sdn控制器和交换机控制链路的保护倒换方法及装置
CN112994785A (zh) * 2019-12-18 2021-06-18 中国电信股份有限公司 业务恢复方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6741553B1 (en) * 1999-12-08 2004-05-25 Nortel Networks Limited Method and system for protecting virtual traffic in a communications network
CN1728645A (zh) * 2004-07-31 2006-02-01 华为技术有限公司 一种光传输网络业务的保护方法
CN101141349A (zh) * 2007-10-10 2008-03-12 中兴通讯股份有限公司 一种传输业务的保护方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6741553B1 (en) * 1999-12-08 2004-05-25 Nortel Networks Limited Method and system for protecting virtual traffic in a communications network
CN1728645A (zh) * 2004-07-31 2006-02-01 华为技术有限公司 一种光传输网络业务的保护方法
CN101141349A (zh) * 2007-10-10 2008-03-12 中兴通讯股份有限公司 一种传输业务的保护方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3537670A4 (en) * 2016-12-02 2019-09-11 Huawei Technologies Co., Ltd. PROTECTIVE SWITCHING, NETWORK DEVICE AND SYSTEM
US10938710B2 (en) 2016-12-02 2021-03-02 Huawei Technologies Co., Ltd. Protection switching method and system, and network device
EP3618350A4 (en) * 2017-06-27 2020-04-08 Huawei Technologies Co., Ltd. PROTECTION SWITCHING METHOD, DEVICE AND SYSTEM
US11297000B2 (en) 2017-09-28 2022-04-05 Huawei Technologies Co., Ltd. Data transmission method, apparatus, and system

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