WO2014177081A1 - Routing policy configuration method and system - Google Patents
Routing policy configuration method and system Download PDFInfo
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- WO2014177081A1 WO2014177081A1 PCT/CN2014/077608 CN2014077608W WO2014177081A1 WO 2014177081 A1 WO2014177081 A1 WO 2014177081A1 CN 2014077608 W CN2014077608 W CN 2014077608W WO 2014177081 A1 WO2014177081 A1 WO 2014177081A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/42—Centralised routing
Definitions
- the present invention relates to the field of communications technologies, and in particular to a routing policy configuration method and system.
- BACKGROUND In MPLS (Multi-Protocol Label Switching) and ASON (Intelligent Optical Network)/GMPLS (Universal Multi-Label Switching) networks in order to implement traffic engineering, constrained path calculation needs to be implemented, and different networking environments need to be supported (for example, Path calculation tasks under a single control domain or multiple control domains.
- RC Rastering Controller
- OIF OIF standard
- IETF Internet Engineering Task Force
- PCE Physical Computation Unit
- the source node calculated by each path requests an external centralized PCE to complete the calculation task.
- RC or PCE uses some routing strategies when calculating routes.
- RFC5541 defines some basic routing strategies, called Objective Functions, which mainly include MCP (Minimum Cost Path). ), MLP (Minimum Load Path), MBP (Maximum residual Bandwidth Path), MBC (Minimize the Load of the most loaded bandwidth), MLL (Minimize the Load of the most loaded Link) Maximum link load), MCC (Minimize the Cumulative Cost of a set of paths).
- the following OF is defined in draft-ietf-pce-hierarchy-extensions-00, in particular: MTD (Minimize the number of Transit Domains), MBN (Minimize the number) Of border nodes, the number of minimum border nodes, DDR (Disallow Domain Re-entry).
- the prior art also provides some supplementary routing policies, including but not limited to: a) inclusion/rejection strategy: specifying that the calculated path contains or excludes the specified node or link; b) Independence strategy: Node-independent, link-independent, SRLG (risk link set) independent of the separation path; c) Specified domain sequence: Specifies the sequence of domains through which the calculated path passes.
- SPC Soft Permanent Connection
- SC Switched Connection
- the SPC is characterized by a request established by the network management service, and the network management system sends the routing policy that is to be used in the current service establishment to the designated node, and then the node adopts the RC or the PCE according to the specified route.
- the strategy performs path calculations.
- the feature of the SC is that the client network sends a request for service establishment to the service network.
- the configuration is not performed by the network management system. In this way, the routing policy cannot be specified. Therefore, only the default routing policy of RC or PCE can be used for path calculation. Since the routing policy cannot be specified, the default routing policy of the RC or PCE is usually the simplest one, such as the minimum path cost. Therefore, in the path calculation of the SC service, other advanced routing policies to the RC or PCE cannot be used, so that The flexibility of the path will be greatly limited.
- the inventor of the present invention has found that the current RC or PCE does not customize the default routing policy, for example, according to different customer networks or different customer-side service types, etc., the default routing policy is customized, and therefore, the flexibility of the routing policy. Further, it is limited.
- the client network can not perform richer routing policy control, it makes the path optimization in the service network itself difficult.
- the path calculation configuration makes the service path use the service network as much as possible.
- a routing policy such as link resources in a domain with richer idle resources.
- a routing policy configuration method includes: Presetting a routing policy configuration template that includes a routing policy configuration record; The routing policy configuration item in the routing policy configuration record sets the default routing policy in the path computing entity. The path computing entity performs path calculation according to the set default routing policy.
- the routing policy configuration template that includes the routing policy configuration record is generated by the network management system or the third-party entity, and is sent to the path computing entity; or directly configured in the path computing entity.
- the routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information.
- multiple corresponding routing policy templates are pre-configured according to the type of the routing policy configuration item in the routing policy configuration record.
- the path computing entity can combine them to implement; Or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the current default routing policy is overwritten with the historical default routing policy on the routing computing entity.
- the path calculation entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service.
- the path calculation entity is a route controller RC or a path calculation unit PCE.
- a routing policy configuration system comprising: a prefabricated module, configured to preset a routing policy configuration template including a routing policy configuration record; and a configuration module configured to configure a routing policy configuration in each routing policy configuration record according to the routing policy configuration template
- the item sets the default routing policy in the path calculation entity; the execution module is set to perform path calculation according to the set default routing policy.
- the routing policy configuration template that includes the routing policy configuration record is generated by the pre-built module deployed on the network management system or the third-party entity, and is sent to the path computing entity; or directly by the pre-made system deployed in the path computing entity.
- the module is configured.
- the routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information.
- the pre-built module pre-configures a plurality of corresponding routing policy templates according to the type of the routing policy configuration item in the routing policy configuration record.
- the execution module of the path computing entity can combine and implement And/or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the configuration module overwrites the current default routing policy with the historical default routing policy on the routing computing entity.
- the execution module of the path computing entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service.
- the path calculation entity is a route controller RC or a path calculation unit PCE.
- the embodiment of the present invention adopts a preset routing policy template, and uses the routing policy template to set a default routing policy in the path calculation entity, and finally performs path calculation based on the default routing policy, which may be used by some users.
- the default routing policy used by the network management system to specify the service routing policy of the current service or the path calculation of the service that does not have any routing policy is flexibly customized.
- FIG. 1 is a schematic flowchart of a routing policy configuration method according to an embodiment of the present invention
- FIG. 2 is a schematic flowchart of a routing policy configuration method according to an embodiment of the present invention
- FIG. 3 is a routing policy configuration system according to an embodiment of the present invention
- Schematic The realization, functional features and excellent effects of the object of the present invention will be further described below in conjunction with the specific embodiments and the accompanying drawings.
- a routing policy configuration method provided by an embodiment of the present invention includes the following steps:
- the path calculation entity performs path calculation according to the set default routing policy.
- the routing policy configuration template that includes the routing policy configuration record in the foregoing step S100 may also be maintained by a network management system or a third-party entity or directly in the local operation of the path computing entity to provide configuration, query, modify, save, delete, and create functions.
- Each routing policy configuration template can be assigned a name by the user.
- Each routing policy configuration record in the routing policy configuration template allows users to add, delete, modify, and query operations.
- the routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information.
- the scenario name may be a UNI service scenario, a dual-homing service scenario, or the like.
- Policy enable means that the routing policy is activated or not activated.
- the policy name may include a basic routing policy, a supplementary routing policy, or a customized special policy.
- the policy level may be necessary or as much as possible. For the policy level, the policy must be adopted when the path calculation entity calculates the path. If the calculation fails, the entire calculation process fails. For the best possible strategy, when the path calculation entity fails to use this strategy, it will automatically abandon the policy and continue to try to recalculate the path.
- the policy value indicates the specific value of the policy corresponding to the policy.
- the scope of the role indicates the scope of the policy, which may refer to one or some of the customer network itself, or one or some nodes in the customer network, or one of the service networks. Or some nodes, or grouping scope identifiers that can group traffic according to certain rules.
- only one routing policy template may be configured, and the routing policy template may include all routing policy configuration records.
- all routing policy configuration records may also be configured according to a routing policy configuration item. For the classification, multiple corresponding routing policy templates are pre-configured according to the types of routing policy configuration items in the routing policy configuration record.
- the path computing entity may combine them to implement And/or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the current default routing policy is overwritten with the historical default routing policy on the routing computing entity.
- the path calculation entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service.
- the path calculation entity is a route controller RC or a path calculation unit PCE.
- the network management system of the service network can set the default routing policy according to the load status of the current service network. For example, after the network management analysis, the following two factors can be considered:
- the service network can adopt a least-pass domain policy, so that services from the customer network A can use the domain of the least service network to establish a route of the service network, thereby saving resources and improving efficiency.
- the load of domain B in the service network is already very large.
- the network management wants to avoid the domain B for the service of the customer network A, and uses other domains to establish the routing of the service network, thereby maximizing the resources of the idle domain in the service network. Based on the above two points, the network management system can be in the routing policy template.
- Configure 2 records: Record 1: The configuration policy scenario is GMPLS-UNI service, the policy name is the minimum traversal domain, the policy level is required, the policy enable is active, the policy value is null, and the scope is customer network A; Record 2: The configuration policy scenario is GMPLS. - UNI service, the policy name is exclusion, the policy level is as much as possible, the policy enable is active, the policy value is domain B, and the scope of action is customer network A.
- the template is delivered to the path calculation entity, and the path calculation entity saves or updates the routing policy template to the local default routing policy.
- the path calculation entity reads the set default routing policy, and uses the least-pass domain policy as the basic policy, and will try to exclude the domain B as a supplementary routing policy and perform the path. Calculation.
- S1 Pre-configure a routing policy configuration template.
- the content of the template consists of two routing policy configuration records. Each record contains routing policy configuration items such as policy scenario, policy name, policy level, policy enablement, policy value, and scope of action;
- the route calculation entity performs path calculation according to the set default routing policy, and the process ends.
- the embodiment of the present invention further provides a routing policy configuration system, including: a pre-made module 100, configured to pre-configure a routing policy configuration template including a routing policy configuration record; and a configuration module 200, configured to The routing policy configuration item in the routing policy configuration record is configured according to the routing policy, and the default routing policy in the path computing entity is set.
- the executing module 300 is configured to perform path calculation according to the set default routing policy.
- the routing policy configuration template that includes the routing policy configuration record is generated by the pre-made module 100 deployed on the network management system or the third-party entity, and is delivered to the path computing entity; or directly deployed by The prefabricated module 100 in the path computation entity is configured.
- the routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information.
- the pre-made module 100 pre-configures multiple corresponding routing policy templates according to the types of routing policy configuration items in the routing policy configuration record.
- the execution module 300 of the path computing entity may combine and implement the same; Or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the configuration module 200 overrides the current default routing policy with the historical default routing policy on the routing computing entity.
- the execution module 300 of the path computing entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service.
- the path calculation entity is a route controller RC or a path calculation unit PCE.
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Abstract
Disclosed are a routing policy configuration method and system. The method comprises: prefabricating a routing policy configuration template including a routing policy configuration record; arranging a default routing policy in a path computation entity according to a routing policy configuration item in each routing policy configuration record in the routing policy configuration template; and the path computation entity performing path calculation according to a set default routing policy. By prefabricating the routing policy configuration template, and setting the default routing policy in the path computation entity according thereto, and finally performing path calculation based on the default routing policy, the present invention can flexibly customize the default routing policy used by the path calculation of some services in which a user or a webmaster cannot appoint a current service routing policy or some services in which the webmaster does not configure any routing policy. Therefore, the path calculation quality under these service scenarios can be obviously improved, and meanwhile, effective means are also provided for the optimization of a service network per se.
Description
路由策略配置方法及系统 技术领域 本发明涉及通信技术领域， 具体而言， 涉及一种路由策略配置方法及系统。 背景技术 在 MPLS (多协议标签交换） 和 ASON (智能光网络 )/GMPLS (通用多标签交换） 网络中， 为了实现流量工程， 需要实现约束路径计算， 并且， 需要支持不同组网环境 (例如， 单控制域或多控制域） 下的路径计算任务。 为了实现约束路径计算， 目前主 要存在有如下两种方式： 一个是基于 OIF标准的 RC (路由控制器）， 其为一种分布式的路由计算实体， 即 由每个路径计算的源节点本身自己完成算路任务； 还有一个是基于 IETF (Internet Engineering Task Force, Internet工程任务组） 的 The present invention relates to the field of communications technologies, and in particular to a routing policy configuration method and system. BACKGROUND In MPLS (Multi-Protocol Label Switching) and ASON (Intelligent Optical Network)/GMPLS (Universal Multi-Label Switching) networks, in order to implement traffic engineering, constrained path calculation needs to be implemented, and different networking environments need to be supported (for example, Path calculation tasks under a single control domain or multiple control domains. In order to implement the constraint path calculation, there are two main methods: one is the RC (Routing Controller) based on the OIF standard, which is a distributed routing computing entity, that is, the source node itself calculated by each path Complete the calculation task; another one is based on the Internet Engineering Task Force (IETF)
PCE (路径计算单元）， 其为一种集中式的路径计算实体， 由每个路径计算的源节点请 求外置的集中式 PCE来完成算路任务。 为了实现约束路径计算， RC 或 PCE 在计算路由时会使用一些路由策略， 例如 RFC5541中定义了一些基本路由策略， 称为 Objective Functions (目标函数）， 其主要 包括 MCP (Minimum Cost Path, 最小路径代价）、 MLP (Minimum Load Path,最小负 载）、 MBP (Maximum residual Bandwidth Path, 最大剩余带宽）、 MBC ( Minimize aggregate Bandwidth Consumption, 最小总带宽消耗)、 MLL (Minimize the Load of the most loaded Link, 最小化最大链路负载）、 MCC (Minimize the Cumulative Cost of a set of paths, 最小化一组路径代价和）。 另外， 针对多域的情况下， 特别在 draft-ietf-pce-hierarchy-extensions-00中定义了 以下的 OF: MTD (Minimize the number of Transit Domains, 最小经过域个数）、 MBN (Minimize the number of border nodes, 最小边界节点个数)、 DDR (Disallow Domain Re-entry, 不允许域重入）。 除了上述的基本路由策略之外， 现有技术还提供了一些补充路由策略， 包括但不 限于： a)包含 /排斥策略： 指定计算的路径中包含或排斥指定的节点或链路；
b)无关性策略： 分离路径的节点无关、 链路无关、 SRLG (风险链路集） 无关； c)指定域序列： 指定计算的路径需经过的域的序列。 目前， ASON路由中存在 SPC ( Soft Permanent Connection, 软永久连接） 禾口 SC ( Switched Connection, 交换连接） 两种业务。 其中， SPC的特点是由网管下发业务建立的请求， 并由网管将本次业务建立中希 望采用的路由策略通过配置下发到指定的节点， 然后由该节点采用 RC或 PCE根据指 定的路由策略进行路径计算。 PCE (Path Computation Unit), which is a centralized path computation entity. The source node calculated by each path requests an external centralized PCE to complete the calculation task. In order to implement constrained path calculation, RC or PCE uses some routing strategies when calculating routes. For example, RFC5541 defines some basic routing strategies, called Objective Functions, which mainly include MCP (Minimum Cost Path). ), MLP (Minimum Load Path), MBP (Maximum residual Bandwidth Path), MBC (Minimize the Load of the most loaded bandwidth), MLL (Minimize the Load of the most loaded Link) Maximum link load), MCC (Minimize the Cumulative Cost of a set of paths). In addition, in the case of multiple domains, the following OF is defined in draft-ietf-pce-hierarchy-extensions-00, in particular: MTD (Minimize the number of Transit Domains), MBN (Minimize the number) Of border nodes, the number of minimum border nodes, DDR (Disallow Domain Re-entry). In addition to the basic routing policies described above, the prior art also provides some supplementary routing policies, including but not limited to: a) inclusion/rejection strategy: specifying that the calculated path contains or excludes the specified node or link; b) Independence strategy: Node-independent, link-independent, SRLG (risk link set) independent of the separation path; c) Specified domain sequence: Specifies the sequence of domains through which the calculated path passes. Currently, there are two types of services: SPC (Soft Permanent Connection) and Switched Connection (SC). The SPC is characterized by a request established by the network management service, and the network management system sends the routing policy that is to be used in the current service establishment to the designated node, and then the node adopts the RC or the PCE according to the specified route. The strategy performs path calculations.
SC的特点是由客户网络向服务网络下发业务建立的请求， 不通过网管进行配置， 采用这种方式不能对路由策略进行指定， 因此只能采用 RC或 PCE的默认路由策略来 进行路径计算。 由于不能指定路由策略， 而 RC或 PCE的默认路由策略通常为最简单 的策略， 如最小路径代价， 这样在 SC业务的路径计算中由于不能使用到 RC或 PCE 的其他的高级路由策略， 以致得到的路径的灵活性将受到了很大的限制。 发明内容 本发明的发明人发现， 目前 RC或 PCE对于默认路由策略没有进行定制， 比如根 据不同的客户网络或不同的客户侧业务类型等条件来定制默认路由策略， 因此， 其路 由策略的灵活性进一步被局限， 同时， 由于不能对客户网络算路进行更丰富的路由策 略控制， 使得服务网络中的路径的自身优化也变得很困难， 例如路径计算时配置使得 业务的路径尽量使用服务网络中空闲资源更丰富的域中的链路资源等路由策略。 鉴于此， 本发明实施例提供了一种路由策略配置方法及系统， 其能够对路由计算 实体中的默认路由策略进行定制， 并在路径计算时使用该默认路由策略， 从而有效提 高路由计算的灵活性， 并提高服务网络自身优化能力。 为了解决上述问题， 根据本发明实施例的一个方面， 采用如下技术方案实现： 一种路由策略配置方法， 包括： 预置包含路由策略配置记录的路由策略配置模板； 依据路由策略配置模板中每条路由策略配置记录中的路由策略配置项对路径计算 实体中的默认路由策略进行设置； 路径计算实体依据设置的默认路由策略进行路径计算。
优选地， 所述包含路由策略配置记录的路由策略配置模板由网管或第三方实体生 成， 并下发到路径计算实体中； 或， 直接在路径计算实体中配置。 优选地， 所述路由策略配置项至少包括场景名称信息、 路由策略名称信息、 路由 策略使能信息、 路由策略程度信息、 路由策略值信息、 作用范围信息中的一项。 优选地， 依据路由策略配置记录中路由策略配置项的类型预先配置多个相应的路 由策略模板。 优选地， 当不同的路由策略配置记录中路由策略配置项的场景名称和作用范围相 同时， 其各自对应的路由策略之间不存在互斥关系， 路径计算实体可将其组合起来实 施； 和 /或， 如果配置的当前默认路由策略与路由计算实体上存储的历史默认路由策略冲突， 则将该当前默认路由策略覆盖路由计算实体上的历史默认路由策略。 优选地， 当业务本身没有被指定具体路由策略时， 路径计算实体依据设置的默认 路由策略进行路径计算， 其中， 所述业务为交换连接 SC业务或者软永久连接 SPC业 务。 优选地， 所述路径计算实体为路由控制器 RC或路径计算单元 PCE。 一种路由策略配置系统， 其包括： 预制模块， 设置为预置包含路由策略配置记录的路由策略配置模板； 配置模块， 设置为依据路由策略配置模板中每条路由策略配置记录中的路由策略 配置项对路径计算实体中的默认路由策略进行设置； 执行模块， 设置为依据设置的默认路由策略进行路径计算。 优选地， 所述包含路由策略配置记录的路由策略配置模板由部署在网管或第三方 实体上的预制模块生成， 并下发到路径计算实体中； 或， 直接由部署在路径计算实体中的预制模块进行配置。
优选地， 所述路由策略配置项至少包括场景名称信息、 路由策略名称信息、 路由 策略使能信息、 路由策略程度信息、 路由策略值信息、 作用范围信息中的一项。 优选地， 所述预制模块依据路由策略配置记录中路由策略配置项的类型预先配置 多个相应的路由策略模板。 优选地， 当不同的路由策略配置记录中路由策略配置项的场景名称和作用范围相 同时， 其各自对应的路由策略之间不存在互斥关系， 路径计算实体的执行模块可将其 组合起来实施； 和 /或， 如果配置的当前默认路由策略与路由计算实体上存储的历史默认路由策略冲突， 则配置模块将该当前默认路由策略覆盖路由计算实体上的历史默认路由策略。 优选地， 当业务本身没有被指定具体路由策略时， 路径计算实体的执行模块依据 设置的默认路由策略进行路径计算， 其中， 所述业务为交换连接 SC业务或者软永久 连接 SPC业务。 优选地， 所述路径计算实体为路由控制器 RC或路径计算单元 PCE。 与现有技术相比， 本发明实施例通过预置路由策略模板， 并使用该路由策略模板 设置路径计算实体中的默认路由策略， 最后基于该默认路由策略进行路径计算， 可以 对一些不能由用户或网管指定本次业务路由策略的业务或者网管没有配置任何路由策 略的业务的路径计算时所采用的默认路由策略进行灵活定制。 因而， 可显著的改善这 些业务场景下的路径计算质量， 同时，对于服务网络的自身优化也提供了有效的手段。 附图说明 图 1是本发明实施例提供的路由策略配置方法流程示意图； 图 2是本发明一具体实施例提供的路由策略配置方法流程示意图； 图 3是本发明实施例提供的路由策略配置系统结构示意图。 本发明目的的实现、 功能特点及优异效果， 下面将结合具体实施例以及附图做进 一步的说明。
具体实施方式 下面结合附图和具体实施例对本发明所述技术方案作进一步的详细描述， 以使本 领域的技术人员可以更好的理解本发明并能予以实施， 但所举实施例不作为对本发明 的限定。 如图 1所示， 本发明实施例提供的一种路由策略配置方法， 包括如下步骤： The feature of the SC is that the client network sends a request for service establishment to the service network. The configuration is not performed by the network management system. In this way, the routing policy cannot be specified. Therefore, only the default routing policy of RC or PCE can be used for path calculation. Since the routing policy cannot be specified, the default routing policy of the RC or PCE is usually the simplest one, such as the minimum path cost. Therefore, in the path calculation of the SC service, other advanced routing policies to the RC or PCE cannot be used, so that The flexibility of the path will be greatly limited. SUMMARY OF THE INVENTION The inventor of the present invention has found that the current RC or PCE does not customize the default routing policy, for example, according to different customer networks or different customer-side service types, etc., the default routing policy is customized, and therefore, the flexibility of the routing policy. Further, it is limited. At the same time, because the client network can not perform richer routing policy control, it makes the path optimization in the service network itself difficult. For example, the path calculation configuration makes the service path use the service network as much as possible. A routing policy such as link resources in a domain with richer idle resources. In view of this, the embodiment of the present invention provides a routing policy configuration method and system, which can customize a default routing policy in a route calculation entity, and use the default routing policy in path calculation, thereby effectively improving route calculation flexibility. Sex, and improve the service network's own optimization capabilities. In order to solve the above problem, according to an aspect of the embodiments of the present invention, the following technical solutions are implemented: A routing policy configuration method includes: Presetting a routing policy configuration template that includes a routing policy configuration record; The routing policy configuration item in the routing policy configuration record sets the default routing policy in the path computing entity. The path computing entity performs path calculation according to the set default routing policy. Preferably, the routing policy configuration template that includes the routing policy configuration record is generated by the network management system or the third-party entity, and is sent to the path computing entity; or directly configured in the path computing entity. Preferably, the routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information. Preferably, multiple corresponding routing policy templates are pre-configured according to the type of the routing policy configuration item in the routing policy configuration record. Preferably, when the scenario name and the scope of the routing policy configuration item in the different routing policy configuration records are the same, there is no mutually exclusive relationship between the corresponding routing policies, and the path computing entity can combine them to implement; Or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the current default routing policy is overwritten with the historical default routing policy on the routing computing entity. Preferably, when the service itself is not specified with a specific routing policy, the path calculation entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service. Preferably, the path calculation entity is a route controller RC or a path calculation unit PCE. A routing policy configuration system, comprising: a prefabricated module, configured to preset a routing policy configuration template including a routing policy configuration record; and a configuration module configured to configure a routing policy configuration in each routing policy configuration record according to the routing policy configuration template The item sets the default routing policy in the path calculation entity; the execution module is set to perform path calculation according to the set default routing policy. Preferably, the routing policy configuration template that includes the routing policy configuration record is generated by the pre-built module deployed on the network management system or the third-party entity, and is sent to the path computing entity; or directly by the pre-made system deployed in the path computing entity. The module is configured. Preferably, the routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information. Preferably, the pre-built module pre-configures a plurality of corresponding routing policy templates according to the type of the routing policy configuration item in the routing policy configuration record. Preferably, when the scenario name and the scope of the routing policy configuration item in the different routing policy configuration records are the same, there is no exclusive relationship between the corresponding routing policies, and the execution module of the path computing entity can combine and implement And/or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the configuration module overwrites the current default routing policy with the historical default routing policy on the routing computing entity. Preferably, when the service itself is not specified with a specific routing policy, the execution module of the path computing entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service. Preferably, the path calculation entity is a route controller RC or a path calculation unit PCE. Compared with the prior art, the embodiment of the present invention adopts a preset routing policy template, and uses the routing policy template to set a default routing policy in the path calculation entity, and finally performs path calculation based on the default routing policy, which may be used by some users. The default routing policy used by the network management system to specify the service routing policy of the current service or the path calculation of the service that does not have any routing policy is flexibly customized. Therefore, the quality of path calculation under these service scenarios can be significantly improved, and at the same time, an effective means for self-optimization of the service network is provided. 1 is a schematic flowchart of a routing policy configuration method according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of a routing policy configuration method according to an embodiment of the present invention; FIG. 3 is a routing policy configuration system according to an embodiment of the present invention; Schematic. The realization, functional features and excellent effects of the object of the present invention will be further described below in conjunction with the specific embodiments and the accompanying drawings. The technical solutions of the present invention are further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can understand the present invention and can be practiced, but the embodiments are not Limitation of the invention. As shown in FIG. 1 , a routing policy configuration method provided by an embodiment of the present invention includes the following steps:
S100、 预置包含路由策略配置记录的路由策略配置模板； S100. Pre-configure a routing policy configuration template that includes a routing policy configuration record.
S200、 依据路由策略配置模板中每条路由策略配置记录中的路由策略配置项对路 径计算实体中的默认路由策略进行设置； S200. Set a routing policy configuration item in each routing policy configuration record in the routing policy configuration template to set a default routing policy in the path computing entity.
S300、 路径计算实体依据设置的默认路由策略进行路径计算。 上述步骤 S100 中的所述包含路由策略配置记录的路由策略配置模板还可以由网 管或第三方实体或直接在路径计算实体的本地操作维护， 提供配置、 查询、 修改、 保 存、 删除和新建功能， 每一个路由策略配置模板可以由用户指定名称。 路由策略配置 模板中的每条路由策略配置记录允许用户进行添加、 删除、 修改、 查询操作。 本实施例中， 所述路由策略配置项至少包括场景名称信息、 路由策略名称信息、 路由策略使能信息、 路由策略程度信息、 路由策略值信息、 作用范围信息中的一项。 所述路由策略配置项中， 场景名称可以是 UNI业务场景、 双归属业务场景等。 策 略使能是指激活或不激活该项路由策略。 所述路由策略配置项中， 策略名称可包括基本路由策略、 补充路由策略、 或自定 义的特殊策略。 所述路由策略配置项中，策略程度可为必须或尽量，对于策略程度为必须的策略， 其在路径计算实体计算路径时将必须被采用， 如果计算失败则整个算路过程失败， 对 于策略程度为尽量的策略， 路径计算实体在采用该策略算路失败时， 将自动放弃该策 略后继续尝试重新计算路径。 所述路由策略配置项中， 策略值表示该策略具体对应的策略取值。 策略的实施需 要按照具体的策略取值来执行。
所述路由策略配置项中， 作用范围表示该策略需要作用的范围， 这个范围可以指 某个或某些客户网络本身， 或客户网络中的某个或某些节点， 或服务网络中的某个或 某些节点， 或能够按照某种规则对业务进行分组的分组范围标识。 在本实施例中， 可以只配置一个路由策略模板， 且所述路由策略模板可包括所有 的路由策略配置记录； 在其他实施例中， 也可以对所有路由策略配置记录按照某个路 由策略配置项进行分类， 依据路由策略配置记录中路由策略配置项的类型预先配置多 个相应的路由策略模板。 在本实施例中， 当不同的路由策略配置记录中路由策略配置项的场景名称和作用 范围相同时， 其各自对应的路由策略之间不存在互斥关系， 路径计算实体可将其组合 起来实施； 和 /或， 如果配置的当前默认路由策略与路由计算实体上存储的历史默认路由策略冲突， 则将该当前默认路由策略覆盖路由计算实体上的历史默认路由策略。 在本实施例中， 当业务本身没有被指定具体路由策略时， 路径计算实体依据设置 的默认路由策略进行路径计算， 其中， 所述业务为交换连接 SC业务或者软永久连接 SPC业务。 其中， 在本实施例中， 所述路径计算实体为路由控制器 RC或路径计算单元 PCE。 具体地， 以 GMPLS-UNI业务为例， 来自客户网络 A的业务 （比如 IPTV) 流量 需要通过服务网络来分流， 但由于其为交换连接 SC业务， 因此， 无法在呼叫建立的 请求中设置路由策略。 服务网络的网管可根据目前服务网络的负载情况来设置默认路 由策略， 例如， 经过网管分析可考虑下面两个因素： S300: The path calculation entity performs path calculation according to the set default routing policy. The routing policy configuration template that includes the routing policy configuration record in the foregoing step S100 may also be maintained by a network management system or a third-party entity or directly in the local operation of the path computing entity to provide configuration, query, modify, save, delete, and create functions. Each routing policy configuration template can be assigned a name by the user. Each routing policy configuration record in the routing policy configuration template allows users to add, delete, modify, and query operations. In this embodiment, the routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information. In the routing policy configuration item, the scenario name may be a UNI service scenario, a dual-homing service scenario, or the like. Policy enable means that the routing policy is activated or not activated. In the routing policy configuration item, the policy name may include a basic routing policy, a supplementary routing policy, or a customized special policy. In the routing policy configuration item, the policy level may be necessary or as much as possible. For the policy level, the policy must be adopted when the path calculation entity calculates the path. If the calculation fails, the entire calculation process fails. For the best possible strategy, when the path calculation entity fails to use this strategy, it will automatically abandon the policy and continue to try to recalculate the path. In the routing policy configuration item, the policy value indicates the specific value of the policy corresponding to the policy. The implementation of the policy needs to be performed according to the specific policy value. In the routing policy configuration item, the scope of the role indicates the scope of the policy, which may refer to one or some of the customer network itself, or one or some nodes in the customer network, or one of the service networks. Or some nodes, or grouping scope identifiers that can group traffic according to certain rules. In this embodiment, only one routing policy template may be configured, and the routing policy template may include all routing policy configuration records. In other embodiments, all routing policy configuration records may also be configured according to a routing policy configuration item. For the classification, multiple corresponding routing policy templates are pre-configured according to the types of routing policy configuration items in the routing policy configuration record. In this embodiment, when the scenario name and the scope of the routing policy configuration item in the different routing policy configuration records are the same, there is no mutually exclusive relationship between the corresponding routing policies, and the path computing entity may combine them to implement And/or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the current default routing policy is overwritten with the historical default routing policy on the routing computing entity. In this embodiment, when the service itself is not specified with a specific routing policy, the path calculation entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service. In this embodiment, the path calculation entity is a route controller RC or a path calculation unit PCE. Specifically, taking the GMPLS-UNI service as an example, traffic from the customer network A (such as IPTV) needs to be offloaded through the service network, but since it is connected to the SC service, it is impossible to set a routing policy in the call setup request. . The network management system of the service network can set the default routing policy according to the load status of the current service network. For example, after the network management analysis, the following two factors can be considered:
1 ) 由于服务网络的域个数比较多， 服务网络可采用最少经过域策略， 这样来自客 户网络 A的业务都可以使用最少的服务网络的域来建立服务网络的路由， 从而节省资 源和提高效率； 2) 由于客户网络 A的流量较大， 而服务网络中域 B的负载已经非常大。 网管希 望对于客户网络 A的业务能尽量避开域 B， 使用其他的域来建立服务网络的路由， 从 而最大程度利用服务网络中空闲域的资源； 基于以上两点， 网管可在路由策略模板中配置 2条记录:
记录 1 : 配置策略场景为 GMPLS-UNI业务， 策略名称为最少经过域， 策略程度 为必须， 策略使能为激活， 策略值为空， 作用范围为客户网络 A; 记录 2: 配置策略场景为 GMPLS-UNI业务， 策略名称为排斥， 策略程度为尽量， 策略使能为激活， 策略值为域 B， 作用范围为客户网络 A。 将该模板下发到路径计算实体， 路径计算实体保存或更新该路由策略模板到本地 的默认路由策略中。 当来自客户网络 A的 GMPLS-UNI业务发起建立请求时， 路径计 算实体会读取设置好的默认路由策略， 将最少经过域策略作为基本策略， 将尽量排斥 域 B作为补充路由策略， 并进行路径的计算。 如图 2所示， 本方法具体实施的步骤如下： S1 : 预置一个路由策略配置模板， 模板的内容由 2条路由策略配置记录组成。 每 条记录包含策略场景、 策略名称、 策略程度、 策略使能、 策略值、 作用范围等路由策 略配置项； 1) Since the number of domains of the service network is relatively large, the service network can adopt a least-pass domain policy, so that services from the customer network A can use the domain of the least service network to establish a route of the service network, thereby saving resources and improving efficiency. 2) Due to the large traffic of customer network A, the load of domain B in the service network is already very large. The network management wants to avoid the domain B for the service of the customer network A, and uses other domains to establish the routing of the service network, thereby maximizing the resources of the idle domain in the service network. Based on the above two points, the network management system can be in the routing policy template. Configure 2 records: Record 1: The configuration policy scenario is GMPLS-UNI service, the policy name is the minimum traversal domain, the policy level is required, the policy enable is active, the policy value is null, and the scope is customer network A; Record 2: The configuration policy scenario is GMPLS. - UNI service, the policy name is exclusion, the policy level is as much as possible, the policy enable is active, the policy value is domain B, and the scope of action is customer network A. The template is delivered to the path calculation entity, and the path calculation entity saves or updates the routing policy template to the local default routing policy. When the GMPLS-UNI service from the customer network A initiates the establishment request, the path calculation entity reads the set default routing policy, and uses the least-pass domain policy as the basic policy, and will try to exclude the domain B as a supplementary routing policy and perform the path. Calculation. As shown in Figure 2, the steps of the method are as follows: S1: Pre-configure a routing policy configuration template. The content of the template consists of two routing policy configuration records. Each record contains routing policy configuration items such as policy scenario, policy name, policy level, policy enablement, policy value, and scope of action;
S2: 读取该路由策略配置模板； S2: Read the routing policy configuration template.
S3： 读取模板中的 2条路由策略配置记录， 在路由计算实体中查找符合该记录条 件的默认路由策略进行记录中的路由策略设置； S3: Read the two routing policy configuration records in the template, and find the routing policy in the routing computing entity to check the routing policy in the record according to the default routing policy of the recording condition;
S4: 路由计算实体根据设置好的默认路由策略进行路径计算， 流程结束。 相应地， 如图 3所示， 本发明实施例还提供了一种路由策略配置系统， 其包括： 预制模块 100， 设置为预制包含路由策略配置记录的路由策略配置模板； 配置模块 200， 设置为依据路由策略配置模板中每条路由策略配置记录中的路由 策略配置项， 对路径计算实体中的默认路由策略进行设置； 执行模块 300， 设置为依据设置的默认路由策略进行路径计算。 其中， 在本实施例中， 所述包含路由策略配置记录的路由策略配置模板由部署在 网管或第三方实体上的预制模块 100生成， 并下发到路径计算实体中； 或， 直接由部 署在路径计算实体中的预制模块 100进行配置。 所述路由策略配置项至少包括场景名称信息、 路由策略名称信息、 路由策略使能 信息、 路由策略程度信息、 路由策略值信息、 作用范围信息中的一项。
所述预制模块 100依据路由策略配置记录中路由策略配置项的类型预先配置多个 相应的路由策略模板。 当不同的路由策略配置记录中路由策略配置项的场景名称和作用范围相同时， 其 各自对应的路由策略之间不存在互斥关系， 路径计算实体的执行模块 300可将其组合 起来实施； 和 /或， 如果配置的当前默认路由策略与路由计算实体上存储的历史默认路由策略冲突， 则配置模块 200将该当前默认路由策略覆盖路由计算实体上的历史默认路由策略。 当业务本身没有被指定具体路由策略时， 路径计算实体的执行模块 300依据设置 的默认路由策略进行路径计算， 其中， 所述业务为交换连接 SC业务或者软永久连接 SPC业务。 在本实施例中， 所述路径计算实体为路由控制器 RC或路径计算单元 PCE。 以上所述仅为本发明的优选实施例， 并非因此限制本发明的专利范围， 凡是利用 本发明说明书及附图内容所作的等效结构或等效流程变换， 或直接或间接运用在其他 相关的技术领域， 均同理包括在本发明的专利保护范围内。
S4: The route calculation entity performs path calculation according to the set default routing policy, and the process ends. Correspondingly, as shown in FIG. 3, the embodiment of the present invention further provides a routing policy configuration system, including: a pre-made module 100, configured to pre-configure a routing policy configuration template including a routing policy configuration record; and a configuration module 200, configured to The routing policy configuration item in the routing policy configuration record is configured according to the routing policy, and the default routing policy in the path computing entity is set. The executing module 300 is configured to perform path calculation according to the set default routing policy. In this embodiment, the routing policy configuration template that includes the routing policy configuration record is generated by the pre-made module 100 deployed on the network management system or the third-party entity, and is delivered to the path computing entity; or directly deployed by The prefabricated module 100 in the path computation entity is configured. The routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information. The pre-made module 100 pre-configures multiple corresponding routing policy templates according to the types of routing policy configuration items in the routing policy configuration record. When the scenario name and the scope of the routing policy configuration item in the different routing policy configuration records are the same, there is no mutual exclusion relationship between the corresponding routing policies, and the execution module 300 of the path computing entity may combine and implement the same; Or, if the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the configuration module 200 overrides the current default routing policy with the historical default routing policy on the routing computing entity. When the service itself is not assigned a specific routing policy, the execution module 300 of the path computing entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service. In this embodiment, the path calculation entity is a route controller RC or a path calculation unit PCE. The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent flow transformation made by the specification and the drawings of the present invention may be directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.
Claims
权 利 要 求 书 、 一种路由策略配置方法， 包括： A request for rights, a routing policy configuration method, including:
预制包含路由策略配置记录的路由策略配置模板； Pre-configuring a routing policy configuration template that includes a routing policy configuration record;
依据路由策略配置模板中每条路由策略配置记录中的路由策略配置项对路 径计算实体中的默认路由策略进行设置； Set the default routing policy in the path calculation entity according to the routing policy configuration item in each routing policy configuration record in the routing policy configuration template.
路径计算实体依据设置的默认路由策略进行路径计算。 、 如权利要求 1所述的路由策略配置方法， 其中， The path calculation entity performs path calculation according to the set default routing policy. The routing policy configuration method according to claim 1, wherein
所述包含路由策略配置记录的路由策略配置模板由网管或第三方实体生 成， 并下发到路径计算实体中； The routing policy configuration template including the routing policy configuration record is generated by the network management system or a third-party entity, and is delivered to the path computing entity.
或， 直接在路径计算实体中配置。 、 如权利要求 1所述的路由策略配置方法， 其中， Or, configure directly in the path computation entity. The routing policy configuration method according to claim 1, wherein
所述路由策略配置项至少包括场景名称信息、 路由策略名称信息、 路由策 略使能信息、 路由策略程度信息、 路由策略值信息、 作用范围信息中的一项。 、 如权利要求 3所述的路由策略配置方法， 其中， The routing policy configuration item includes at least one of scenario name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and scope information. The routing policy configuration method according to claim 3, wherein
依据路由策略配置记录中路由策略配置项的类型预先配置多个相应的路由 策略模板。 、 如权利要求 3所述的路由策略配置方法， 其中， 当不同的路由策略配置记录中路由策略配置项的场景名称和作用范围相同 时， 其各自对应的路由策略之间不存在互斥关系， 路径计算实体可将其组合起 来实施； Pre-configure multiple corresponding routing policy templates based on the types of routing policy configuration items in the routing policy configuration record. The routing policy configuration method according to claim 3, wherein when the scenario name and the scope of the routing policy configuration item in the different routing policy configuration records are the same, there is no mutual exclusion relationship between the corresponding routing policies. Path computation entities can combine them to implement;
和 /或， and / or,
如果配置的当前默认路由策略与路由计算实体上存储的历史默认路由策略 冲突， 则将该当前默认路由策略覆盖路由计算实体上的历史默认路由策略。 、 如权利要求 3所述的路由策略配置方法， 其中，
当业务本身没有被指定具体路由策略时， 路径计算实体依据设置的默认路 由策略进行路径计算，其中，所述业务为交换连接 SC业务或者软永久连接 SPC 业务。 、 如权利要求 1-5任意一项所述的路由策略配置方法， 其中， If the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the current default routing policy is overwritten with the historical default routing policy on the routing computing entity. The routing policy configuration method according to claim 3, wherein When the service itself is not specified with a specific routing policy, the path calculation entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC service or a soft permanent connection SPC service. The routing policy configuration method according to any one of claims 1 to 5, wherein
所述路径计算实体为路由控制器 RC或路径计算单元 PCE。 、 一种路由策略配置系统， 包括： The path computation entity is a routing controller RC or a path computation unit PCE. A routing policy configuration system, including:
预制模块， 设置为预制包含路由策略配置记录的路由策略配置模板； 配置模块， 设置为依据路由策略配置模板中每条路由策略配置记录中的路 由策略配置项对路径计算实体中的默认路由策略进行设置； The pre-made module is configured to pre-configure a routing policy configuration template including a routing policy configuration record; the configuration module is configured to perform a routing policy configuration item in each routing policy configuration record in the routing policy configuration template to perform a default routing policy in the path computing entity. Setting
执行模块， 设置为依据设置的默认路由策略进行路径计算。 、 如权利要求 8所述的路由策略配置系统， 其中， 所述包含路由策略配置记录的路由策略配置模板由部署在网管或第三方实 体上的预制模块生成， 并下发到路径计算实体中； The execution module is set to perform path calculation according to the set default routing policy. The routing policy configuration system according to claim 8, wherein the routing policy configuration template including the routing policy configuration record is generated by a pre-built module deployed on the network management system or the third-party entity, and is sent to the path computing entity;
或， 直接由部署在路径计算实体中的预制模块进行配置。 0、 如权利要求 8所述的路由策略配置系统， 其中， 所述路由策略配置项至少包括场景名称信息、 路由策略名称信息、 路由策 略使能信息、 路由策略程度信息、 路由策略值信息、 作用范围信息中的一项。 1、 如权利要求 10所述的路由策略配置系统， 其中， 所述预制模块依据路由策略配置记录中路由策略配置项的类型预先配置多 个相应的路由策略模板。 、 如权利要求 10所述的路由策略配置系统， 其中， 当不同的路由策略配置记录中路由策略配置项的场景名称和作用范围相同 时， 其各自对应的路由策略之间不存在互斥关系， 路径计算实体的执行模块可 将其组合起来实施； Or, configured directly by prefabricated modules deployed in the path computation entity. The routing policy configuration system according to claim 8, wherein the routing policy configuration item includes at least scene name information, routing policy name information, routing policy enabling information, routing policy level information, routing policy value information, and functions. One of the range information. The routing policy configuration system according to claim 10, wherein the pre-built module pre-configures a plurality of corresponding routing policy templates according to the type of the routing policy configuration item in the routing policy configuration record. The routing policy configuration system according to claim 10, wherein when the scenario name and the scope of the routing policy configuration item in the different routing policy configuration records are the same, there is no mutual exclusion relationship between the corresponding routing policies. The execution modules of the path computation entity can be combined to implement;
和 /或，
如果配置的当前默认路由策略与路由计算实体上存储的历史默认路由策略 冲突， 则配置模块将该当前默认路由策略覆盖路由计算实体上的历史默认路由 策略。 如权利要求 10所述的路由策略配置系统， 其中， 当业务本身没有被指定具体路由策略时， 路径计算实体的执行模块依据设 置的默认路由策略进行路径计算， 其中， 所述业务为交换连接 SC业务或者软 永久连接 SPC业务。 如权利要求 8-13任意一项所述的路由策略配置系统， 其中， and / or, If the configured current default routing policy conflicts with the historical default routing policy stored on the routing computing entity, the configuration module overwrites the current default routing policy with the historical default routing policy on the routing computing entity. The routing policy configuration system according to claim 10, wherein, when the service itself is not specified with a specific routing policy, the execution module of the path computing entity performs path calculation according to the set default routing policy, where the service is an exchange connection SC Business or soft permanent connection to SPC business. The routing policy configuration system according to any one of claims 8 to 13, wherein
所述路径计算实体为路由控制器 RC或路径计算单元 PCE。
The path computation entity is a routing controller RC or a path computation unit PCE.
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