WO2015117456A1 - 一种链路轮询的方法、装置、系统及计算机存储介质 - Google Patents
一种链路轮询的方法、装置、系统及计算机存储介质 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/085—Retrieval of network configuration; Tracking network configuration history
- H04L41/0853—Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information
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- the present invention relates to the field of network management technologies, and in particular, to a method, an apparatus, a system, and a computer storage medium for link polling.
- ONT Optical Network Termination
- MDU Multi-Dwelling Unit
- the Optical Line Terminal In the application scenario of the optical fiber to the building, the Optical Line Terminal (OLT) is only responsible for the establishment of the MDU maintenance channel, and the basic configuration data of the MDU (such as the system parameter template, traffic template, MGC media gateway controller template, VLAN, etc.) After the MDU authentication is passed, it must be configured through the Simple Network Management Protocol (SNMP) or telnet. At the same time, the order of magnitude of the MDU is 10 times or more of the order of the traditional Digital Subscriber Line Access Multiplexer (DSLAM) and the Multi-service Access Node (MSAN) device. The amount of work required to configure the basic business data of the MDU is enormous.
- SNMP Simple Network Management Protocol
- DSLAM Digital Subscriber Line Access Multiplexer
- MSAN Multi-service Access Node
- the MDU basic service configuration process is: after the data planning department deploys the MDU site and the data of each MDU, it is first installed by the hardware personnel. After the installation is completed, the soft-tuning personnel are sent to the MDU site or Remotely log in to the OLT for data configuration. After the service configuration is complete. Go to the site to test the test.
- the network management system supports the pre-deployment of the MDU.
- the in-band channel parameters are automatically sent to open the network management channel.
- the configuration data is automatically delivered to quickly complete the service configuration of the MDU.
- the configuration data of the MDU is often inconsistent with the actual data due to human or other external factors.
- the configuration data of the MDU device is inconsistent with the actual data. Bringing a series of adverse effects on the project, it takes a lot of time and manpower to investigate these adverse effects, resulting in waste of resources.
- embodiments of the present invention are directed to a method, apparatus, system, and computer storage medium for link polling.
- An embodiment of the present invention provides a method for link polling, where the method includes: sending a request message for acquiring configuration data of a network element device according to a polling period; and parsing the response message when receiving the response message of the request message The response message is obtained, and the configuration data carried by the response message is obtained. The configuration data is compared with the actual data saved by itself to obtain a comparison result, and the actual data is reported or not processed according to the comparison result.
- the method before sending the request message for acquiring the configuration data of the network element device according to the polling period, the method further includes: extracting and saving the actual data from the database.
- the method further includes: setting the network element device to an online state when receiving the response message of the request message.
- the request message carries the system identifier of the network element device; correspondingly, the response message is parsed, and the configuration corresponding to the system identifier carried in the response message is obtained. data.
- the method before comparing the configuration data with the actual data saved by itself to obtain a comparison result, the method further includes: determining, according to the system identifier, actual data saved by itself corresponding to the configuration data.
- the reporting the actual data according to the comparison result or not processing includes: when the configuration data is inconsistent with the actual data, reporting the actual data; or, when the configuration data is related to the actual When the data is consistent, no processing is done.
- the embodiment of the present invention further provides a device for link polling, where the device includes: a sending module, a parsing module, and a comparing module.
- the sending module is configured to send configuration data of the network element device according to a polling period.
- the requesting module is configured to: when receiving the response message of the request message, parse the response message to obtain configuration data carried by the response message; and the comparing module is configured to configure the The data is compared with the actual data saved by itself to obtain a comparison result, and the actual data is reported or not processed according to the comparison result.
- the apparatus further includes: an extraction module configured to extract and save the actual data from the database.
- the device further includes: a setting module, configured to set the network element device to be in an online state when receiving the response message of the request message.
- the request message carries the system identifier of the network element device.
- the parsing module is configured to parse the response message, and obtain a configuration corresponding to the system identifier carried in the response message. data.
- the device further includes: a determining module, configured to determine, according to the system identifier, actual data saved by itself corresponding to the configuration data.
- the comparing module is configured to: when the configuration data is inconsistent with the actual data, report the actual data; or, when the configuration data is consistent with the actual data, do not do deal with.
- the embodiment of the present invention further provides a system for link polling, where the system includes a network management server, a network management client, and at least one network element device, where the network management server is configured to send an acquisition network according to a polling period.
- the request message of the configuration data of the meta-device when receiving the response message of the request message, parsing the response message to obtain configuration data carried by the response message; comparing the configuration data with actual data saved by itself The comparison result is obtained, and the actual data is reported or not processed according to the comparison result;
- the network management client is configured to receive the actual data reported by the network management server, and deliver the actual data to the
- the network element device is configured to: when receiving the request message, return the response message; and when receiving the actual data, configure a service according to the actual data.
- the network management server is the network management server described in the foregoing solution.
- the embodiment of the present invention further provides a computer storage medium, the computer storage medium comprising a set of instructions, when executed, causing at least one processor to perform the method of link polling described above.
- An embodiment of the present invention provides a method, an apparatus, a system, and a computer storage medium for a link polling, and sends a request message for acquiring configuration data of a network element device according to a polling period; when receiving a response message of the request message, Parsing the response message to obtain the configuration data carried in the response message; comparing the configuration data with the actual data saved by itself to obtain a comparison result, and reporting the actual data according to the comparison result or not processing; Therefore, when the network management performs link polling, it automatically monitors whether the configuration data of the network element device is inconsistent with the actual data, and monitors the error caused by the inconsistency, and automatically corrects the configuration data of the error to achieve automatic configuration data.
- the service configuration of the correct NE device is modified. You do not need to manually change the configuration data of the NE device to ensure the correct configuration of the NE device.
- FIG. 1 is a schematic flowchart of a method for link polling according to an embodiment of the present disclosure
- FIG. 2 is a schematic flowchart of a method for link polling according to a specific application example according to an embodiment of the present disclosure
- FIG. 3 is a schematic structural diagram of an apparatus for link polling according to an embodiment of the present disclosure
- FIG. 4 is a schematic structural diagram of a system for link polling according to an embodiment of the present invention.
- the request message for acquiring the configuration data of the network element device is sent according to the polling period; when the response message of the request message is received, the response message is parsed to obtain the configuration data carried by the response message. Comparing the configuration data with the actual data saved by itself to obtain a comparison result, and reporting the actual data according to the comparison result or not processing.
- FIG. 1 is a schematic flowchart of a method for link polling according to an embodiment of the present invention. The method is applied to a network management server. As shown in FIG. 1 , the method includes:
- Step 101 Send a request message for acquiring configuration data of the network element device according to a polling period.
- the network management server starts its own timer, and the working period of the timer is a polling period.
- the network management server sends a request for acquiring the configuration data of the network element device to the network element device managed by the network management device.
- the request message carries the system identifier of the network element device. That is to say, the network management server periodically sends a request message to the network element device at a time interval of a polling period.
- the network management server extracts and saves the actual data from the database.
- the actual data is data that the network element device performs service configuration according to its own attributes.
- the NMS server obtains the NE information of the NE, including the NE name, IP address of the NE, and NE type, and saves the information in the database.
- the network management server takes the NE information from the database and saves it as an entity class in the system cache for link polling.
- the configuration data and the actual data are one or more pieces of information in the network element information; wherein the configuration data and the actual data have the same information type.
- the configuration data of the network element device may be sent to the network management server by the operator to which the network element device belongs, and sent to the network element server through the network management server, and the network element device is configured according to the network management server.
- the sent configuration data is applied to its own business configuration.
- the configuration data of the network element device configured by the operator in the network management client is set according to the data provided by the device provider of the network element device. At this time, the configuration data and the network element set in the network management client are configured.
- the actual data inherent in the device may be inconsistent, and the NE device cannot perform services normally.
- Step 102 When receiving the response message of the request message, parsing the response message to obtain configuration data carried by the response message;
- the network management server when the network management server receives the response message of the request message, the network element device is set to be in an online state.
- the response message is parsed.
- the received response message carries a system identifier that is consistent with the request message, and the response message is parsed to obtain the response message.
- Configuration data corresponding to the system identifier
- Step 103 Comparing the configuration data with the actual data saved by itself to obtain a comparison result, and reporting the actual data according to the comparison result or not processing;
- the network management server compares the configuration data with the actual data saved by itself to obtain a comparison result
- the actual data saved by itself corresponding to the configuration data is determined according to the system identifier.
- the network management server compares the configuration data parsed in the response message with the determined actual data, and when the configuration data is inconsistent with the actual data, reports the actual data; when the configuration data is consistent with the actual data When not, do not deal with it.
- the actual data is reported as
- the network management client reports the actual data, and the actual data is data required for the network element device to perform normal services.
- the network management client sends the actual data to the network element device to update the service data of the network element device to perform normal services. .
- the link polling method provided by the embodiment of the present invention is further described by taking the configuration data, the actual data as the network element type, and the network element device as the MDU as an example.
- the network element type is a definition for distinguishing different network element devices in the optical access system.
- the suffix is distinguished. For example, for the network element device F822, the following different types of network elements may be included: F822, F822B, F822P, and the like.
- the NMS server obtains the configuration information of the NE, including the NE name, IP address of the NE, and NE type, and saves the information in the database.
- the system identifier is used as the unique identifier for identifying the NE device.
- the system identifier is used to distinguish different NE devices. Therefore, the system ID is an important basis for automatically correcting the NE type function during the link polling process.
- the network management server takes the network element information from the database and saves it as an entity class to the system cache of the network management server for link polling.
- the method of link polling includes the following steps:
- Step 201 Start link polling.
- the background timer of the network management server is started according to the polling period, and the link polling of the MDU under the network management server is started.
- the background timer is started periodically, a request message is triggered, and the request message carries the system identifier of the polled MDU to obtain the configuration of the MDU.
- Type detect whether the MDU is online, and obtain the alarm information of the MDU.
- Step 202 Detect whether the MDU is online.
- the network management server receives the response message corresponding to the request message, indicating that the MDU corresponding to the system identifier carried in the request message is online, and the MDU is set to the online state, and step 203 is performed; otherwise The MDU corresponding to the system identifier carried in the request message is offline, and the MDU is set to the offline state, and step 206 is performed.
- the current state of the MDU is recorded and saved.
- the received response message is parsed, and the polling result of the MDU such as the configuration type and alarm information of the MDU carried in the response message is obtained.
- the polling result includes the information of the network element, the network element IP address, the configuration type, the system identifier, and the MDU alarm information.
- Step 203 Detect an alarm message.
- the network management server After analyzing the alarm message, the network management server compares the parsed alarm information with the alarm information saved in the previous link polling process to determine whether the current alarm information is consistent with the saved alarm information. If the polling result is reported, the current alarm information is reported to the network management client to update the alarm information displayed on the network management client; if not, the alarm information is not reported in step 205.
- the alarm information is mainly an abnormal state occurring on the MDU, and each abnormal state corresponds to an alarm, and the types of the alarm include an abnormal state such as a memory overload, a power source high temperature, a power failure, a power failure, and an uplink port link interruption.
- the response message may also be an alarm message when the alarm information of the MDU is queried.
- the alarm information included in the response message includes alarm level, location, alarm code, time of occurrence, alarm type, and alarm cause.
- Step 204 Compare the configuration type with the actual type.
- the actual type of the MDU needs to be obtained from the mapping table of the network management database according to the system identifier corresponding to the configuration type.
- the system identifier of the MDU is used as a unique identifier for distinguishing the MDU, and each system identifier corresponds to a unique actual type, and the system identifier corresponds to the actual identifier.
- the correspondence of the types is saved in the network management database mapping table.
- the NMS server reads the actual type corresponding to the configuration type from the system cache.
- the network management server compares the actual type of the configuration type corresponding to the MDU by using the system identifier. If the type is inconsistent, in step 205, when the polling result is reported, the actual type is reported to the network management client. If the types are inconsistent, in step 205, the network element type related processing is not performed.
- the network management server can set the configuration file to detect whether the MDU configuration type is detected. Specifically, the switch can be set in the configuration file. When the switch in the configuration file is opened, the MDU configuration type is detected, and the configuration is compared. Type and actual type; otherwise, the configuration type of the MDU is not detected.
- step 203 and step 204 is in no particular order.
- Step 205 reporting a polling result
- the network management server reports the polling result to the network management client according to the specific process of step 203 and step 204, and synchronizes the current information of the MDU to the network management client.
- the polling result of the report according to the comparison result of the step 203 and the step 204, only the alarm information may be reported, or only the actual type of the MDU may be reported, and the alarm information of the MDU and the actual type of the MDU may be reported simultaneously;
- the system identifier corresponding to the actual type is carried to ensure the correctness of the correspondence between the actual type and the system identifier in the network management client.
- Step 206 ending the link polling
- step 202 is performed according to the polling period of the timer to perform the link polling again.
- the system identifier has a certain correspondence with the network element data.
- the configuration data of the network element device identified by the system is configured as the system identifier.
- Configuration data of the network element device of B At this time, in the network management client, the configuration data of the A network element device displays the configuration data of the B network element device, and the system thereof The system ID is displayed as B.
- the network management server sends a request message to the A network element device, and when the A network element device is online, the system identifier A carried by the A network element device and its corresponding Configuration Data.
- the network management server When the configuration data carried by the A-network element device is inconsistent with the actual data of the A-network element device, it indicates that the system ID corresponding to the configuration data in the network management client is other than B. In this case, the network management server will use the A-network element.
- the system identifier A of the device and its corresponding type are reported to the network management client to correct the configuration data of the network element device in the client, and the network management client sends the corrected correct configuration data to the network element device. To ensure the normal business.
- the network management device when the network management server does not receive the response message returned by the network element device, the network management device cannot know the status of the network element device, and the network element device is in an unknown state. At this time, the network element device is set. In the offline state, processing is performed as an offline state, and link polling for the network element device is automatically ignored.
- the embodiment of the present invention further provides a device for link polling, where the device is applied to the network management server 30, and the device includes: a sending module 301, a parsing module 302, and a comparing module 303; wherein, the sending module 301, configured to send a request message for acquiring configuration data of the network element device according to a polling period, where the parsing module 302 is configured to parse the response message when the response message of the request message is received, to obtain the response message
- the comparison data 303 is configured to compare the configuration data with the actual data saved by itself to obtain a comparison result, and report the actual data according to the comparison result or not process.
- the comparison module 303 is configured to: when the configuration data is inconsistent with the actual data, report the actual data; when the configuration data is consistent with the actual data, no processing is performed.
- the apparatus may further include: an extraction module 304 configured to extract and save the actual data from a database.
- the device may further include: a setting module 305, configured to set the network element device to be in an online state when receiving the response message of the request message.
- a setting module 305 configured to set the network element device to be in an online state when receiving the response message of the request message.
- the request message carries the system identifier of the network element device.
- the parsing module 302 is configured to parse the response message, and obtain configuration data corresponding to the system identifier carried in the response message.
- the apparatus may further include: a determining module 306, configured to determine, according to the system identifier, actual data saved by itself corresponding to the configuration data.
- the device provided by the embodiment of the present invention may be a separate system, or a logical unit that performs different functions may be added to an existing network element device, such as a network management server.
- the sending module 301 and the comparing module 303 may be a central processing unit (CPU), a digital signal processor (DSP, a digital signal processor), or a programmable gate located in the network management server.
- An FPGA Field Programmable Gate Array
- the parsing module 302, the extracting module 304, the setting module 305, and the determining module 306 can be implemented by a CPU, a DSP, or an FPGA located in the network management server.
- the embodiment of the present invention further provides a system for link polling, where the system includes a network management server 30, a network management client 40, and at least one network element device as shown in FIG. 50; among them,
- the network management server 30 is configured to send a request message for acquiring configuration data of the network element device according to the polling period; and when receiving the response message of the request message, parsing the response message to obtain configuration data carried by the response message Comparing the configuration data with the actual data saved by itself to obtain a comparison result, and reporting the actual data according to the comparison result or not processing;
- the network management client 40 is configured to receive the actual data reported by the network management server 30, and deliver the actual data to the network element device 50;
- the network element device 50 is configured to return the response message when receiving the request message, and configure the service according to the actual data when the actual data is received.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
- an embodiment of the present invention further provides a computer storage medium, the computer storage medium comprising a set of instructions, when executed, causing at least one processor to perform the method of link polling described above.
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Abstract
本发明提供一种链路轮询的方法,包括:根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理。本发明同时还提供一种链路轮询的装置、系统及计算机存储介质。
Description
本发明涉及网络管理技术领域,尤其涉及一种链路轮询的方法、装置、系统及计算机存储介质。
随着光纤接入到户技术的发展,如光网络终端(ONT,Optical Network Termination),多住户单元(MDU,Multi Dwelling Unit)等小规格网元设备的引入将接入点进一步向用户延伸,改变了在中心局进行设备部署,近端管理的现状。其中,无源光网络(PON,Passive Optical Network)系统中的用户端设备称为光网络单元(ONU,Optical Network Unit),当使用FTTB/C方式建设光接入网时,每个ONU需接入多个独立用户,此时的ONU被称为MDU,是网元设备的一种。
在光纤到楼的应用场景下,光线路终端(OLT,Optical Line Terminal)只负责MDU维护通道的建立,MDU的基础配置数据(如系统参数模板,流量模板,MGC媒体网关控制器模板,VLAN等)必须等MDU认证通过之后,通过简单网络管理协议(SNMP,Simple Network Management Protocol)或telnet方式进行配置。同时MDU的数量级是传统数字用户线接入复用器(DSLAM,Digital Subscriber Line Access Multiplexer)、多业务接入点(MSAN,Multi-service Access Node)设备数量级的10倍或更多,在网络部署阶段对MDU的基础业务数据进行配置的工作量巨大。而现阶段,MDU基础业务配置过程为:数据规划部门将部署MDU的站点及每个MDU的数据规划好之后,先由硬件人员去安装,安装完成之后,再派软调人员去MDU的现场或者远程登录OLT进行数据配置,业务配置完成之后
再去现场测试验收。
为了支持MDU上电后的即插即用,减少用户到局方进行调试的次数,减少调试工作量,网管支持MDU的预部署,当MDU上线后自动下发带内通道参数打通网管通道,并自动下发配置数据,快速完成MDU的业务配置。在局方进行MDU的业务配置的过程中,经常会由于人为或其它外力因素,使MDU的配置数据出现误差,与实际数据不一致,MDU这种网元设备的配置数据与实际数据不一致的问题会带来工程上一系列的不良影响,对于这些不良影响需要花费大量的时间和人力去排查,从而导致了资源上的浪费。
然而,对于上述问题,相关技术并未存在有效的解决方案。
发明内容
有鉴于此,本发明实施例期望提供一种链路轮询的方法、装置、系统及计算机存储介质。
为达到上述目的,本发明实施例的技术方案是这样实现的:
本发明实施例提供一种链路轮询的方法,所述方法包括:根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理。
上述方案中,在根据轮询周期发送获取网元设备的配置数据的请求消息之前,所述方法还包括:从数据库提取并保存所述实际数据。
上述方案中,所述方法还包括:接收到所述请求消息的响应消息时,设置所述网元设备为在线状态。
上述方案中,所述请求消息携带有所述网元设备的系统标识;相应地,解析所述响应消息,得到所述响应消息携带的与所述系统标识对应的配置
数据。
上述方案中,在将所述配置数据与自身保存的实际数据进行比较得到比较结果之前,所述方法还包括:根据所述系统标识确定与所述配置数据对应的自身保存的实际数据。
上述方案中,所述根据所述比较结果上报实际数据或不做处理包括:当所述配置数据与所述实际数据不一致时,上报所述实际数据;或者,当所述配置数据与所述实际数据一致时,不做处理。
本发明实施例还提供一种链路轮询的装置,所述装置包括:发送模块、解析模块、比较模块;其中,所述发送模块,配置为根据轮询周期发送获取网元设备的配置数据的请求消息;所述解析模块,配置为当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;所述比较模块,配置为将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理。
上述方案中,所述装置还包括:提取模块,配置为从数据库提取并保存所述实际数据。
上述方案中,所述装置还包括:设置模块,配置为接收到所述请求消息的响应消息时,设置所述网元设备为在线状态。
上述方案中,所述请求消息携带有所述网元设备的系统标识;相应地,所述解析模块,配置为解析所述响应消息,得到所述响应消息携带的与所述系统标识对应的配置数据。
上述方案中,所述装置还包括:确定模块,配置为根据所述系统标识确定与所述配置数据对应的自身保存的实际数据。
上述方案中,其中,所述比较模块,配置为:当所述配置数据与所述实际数据不一致时,上报所述实际数据;或者,当所述配置数据与所述实际数据一致时,不做处理。
本发明实施例还提供一种链路轮询的系统,所述系统包括网管服务端、网管客户端、至少一个网元设备;其中,所述网管服务端,配置为根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理;所述网管客户端,配置为接收所述网管服务端上报的实际数据,并将所述实际数据下发至所述网元设备,所述网元设备,配置为接收到所述请求消息时,返回所述响应消息;并接收到所述实际数据时,根据所述实际数据配置业务。
所述网管服务端为上述方案所述的网管服务端。
本发明实施例又提供一种计算机存储介质,所述计算机存储介质包括一组指令,当执行所述指令时,引起至少一个处理器执行上述的链路轮询的方法。
本发明实施例提供一种链路轮询的方法、装置、系统及计算机存储介质,根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理;由此,在网管进行链路轮询的同时,自动监测网元设备的配置数据是否与实际数据不一致,监测到不一致带来的误差,会自动纠正出现误差的配置数据,以实现自动对配置数据不正确的网元设备的业务配置进行修改,无需人工手动对网元设备的配置数据进行更改,保证了网元设备的业务配置的正确性。
在附图(其不一定是按比例绘制的)中,相似的附图标记可在不同的视图中描述相似的部件。具有不同字母后缀的相似附图标记可表示相似部
件的不同示例。附图以示例而非限制的方式大体示出了本文中所讨论的各个实施例。
图1为本发明实施例提供的一种链路轮询的方法流程示意图;
图2为本发明实施例提供的一具体应用实例的链路轮询的方法流程示意图;
图3为本发明实施例提供的一种链路轮询的装置结构示意图;
图4为本发明实施例提供的一种链路轮询的系统结构示意图。
在本发明实施例中,根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理。
下面通过附图及具体实施例对本发明再做进一步的详细说明。
图1为本发明实施例提供的一种链路轮询的方法流程示意图,该方法应用于网管服务端中,如图1所示,该方法包括:
步骤101,根据轮询周期发送获取网元设备的配置数据的请求消息;
具体地,网管服务端启动自身的定时器,该定时器的工作周期为轮询周期;当定时器超时时,网管服务端向自身管理的网元设备发送获取该网元设备的配置数据的请求消息,以获取该网元设备的配置数据。其中,所述请求消息携带有该网元设备的系统标识。也就是说,网管服务端以轮询周期为时间间隔周期性地向网元设备发送请求消息。
在步骤101之前,网管服务端从数据库提取并保存实际数据。这里,所述实际数据为网元设备根据自身的属性进行业务配置的数据。其中,创建网元时,网管服务端会通过SNMP报文方式获取网元的网元信息,包括网元名称、网元设备IP地址、网元类型等信息,并保存在数据库中。在进
行链路轮询前,网管服务端将网元信息从数据库取出,作为实体类保存到系统缓存中,供链路轮询使用。其中,配置数据和实际数据为所述网元信息中的一个以上信息;其中,所述配置数据和实际数据的信息类型一致。
这里,网元设备的配置数据可为该网元设备所属的运营商在网管客户端进行设置发送至网管服务端,并经由网管服务端下发至网元设备,网元设备根据网管服务端下发的配置数据应用于自身的业务配置。
在实际使用中,运营商在网管客户端中配置的网元设备的配置数据为根据网元设备的设备提供商提供的数据进行设置,此时,在网管客户端中设置的配置数据与网元设备本身固有的实际数据可能不一致,而导致网元设备无法正常进行业务。
步骤102,当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;
这里,网管服务端接收到所述请求消息的响应消息时,设置所述网元设备为在线状态。网管服务端接收到与该请求消息的响应消息时,对该响应消息进行解析,这里,接收到的响应消息携带有与该请求消息一致的系统标识,解析该响应消息,得到所述响应消息携带的与所述系统标识对应的配置数据。
步骤103,将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理;
这里,网管服务端在将所述配置数据与自身保存的实际数据进行比较得到比较结果之前,根据所述系统标识确定与所述配置数据对应的自身保存的实际数据。
网管服务端将从响应消息中解析的配置数据与确定的实际数据进行比较,当所述配置数据与所述实际数据不一致时,上报所述实际数据;当所述配置数据与所述实际数据一致时,不做处理。这里,上报实际数据为向
网管客户端上报该实际数据,该实际数据为该网元设备能进行正常业务所需的数据,网管客户端将该实际数据下发至网元设备以更新网元设备的业务数据以正常进行业务。
如图2所示,以配置数据、实际数据为网元类型、网元设备为MDU为例对本发明实施例提供的链路轮询方法进行进一步阐述。
这里,网元类型是对光接入系统中的不同网元设备进行区分的定义,网元类型的种类较多,不同的网元类型,其功能也有所不同。在实际应用中,由于运营商需求不同,需要对于同一种网元类型进行业务定制,比如提供一些额外网络业务如以太网业务、窄带业务等,增加端口,这样的定制网元在类型上经常以后缀进行区分,比如对于网元设备F822,可包括有以下几种不同的网元类型:F822、F822B、F822P等。当技术人员在网管客户端中对网元设备的网元类型进行手动配置时,配置的网元类型为配置类型。此时,由于网元类型的接近,可能会出现在配置过程中将配置类型配置错误的情况。
这里,在创建网元设备时,网管服务端会通过SNMP报文方式获取网元的配置信息,包括网元名称、网元设备IP地址、网元类型等信息,并保存在数据库中。其中,系统标识作为标识网元设备的唯一标识,用于对不同的网元设备进行区分,因此,系统标识是链路轮询过程中自动校正网元类型功能的重要依据。在进行链路轮询前,网管服务端把网元信息从数据库取出,作为实体类保存到网管服务端的系统缓存中,供链路轮询使用。
如图2所示,链路轮询的方法包括以下步骤:
步骤201,启动链路轮询;
这里,由网管服务器的后台定时器根据轮询周期定时启动,开启对网管服务端下的MDU的链路轮询。当后台定时器定时启动时,触发一条请求消息,该请求消息携带被轮询的MDU的系统标识,以获取该MDU的配置
类型,检测该MDU是否在线,并获取该MDU的告警信息。
步骤202,检测MDU是否在线;
具体地,网管服务端发送请求消息后,接收到该请求消息对应的响应消息,则表明请求消息携带的系统标识对应的MDU在线,此时,将该MDU设置为在线状态,执行步骤203;否则,请求消息携带的系统标识对应的MDU离线,将该MDU设置为离线状态,执行步骤206。这里,将MDU的当前状态进行记录并保存。此时,对接收到的响应消息进行解析,得到响应消息携带的该MDU的配置类型、告警信息等MDU的轮询结果。
其中,轮询结果具体包括MDU本身的一些包括网元名称、网元IP地址、配置类型、系统标识等信息及MDU的告警信息。
步骤203,检测告警消息;
网管服务端在解析出告警消息后,将解析出的告警信息与上一次链路轮询过程中保存的告警信息进行比较,确定当前的告警信息与保存的告警信息是否一致,不一致则在步骤205中,上报轮询结果时将当前告警信息上报至网管客户端,以在网管客户端显示的告警信息进行更新;一致则在步骤205中不上报告警信息。
这里,告警信息主要为MDU上发生的一些异常状态,每种异常状态对应一种告警,告警的种类包括内存过载、电源高温、电源故障、电源断电、上联端口链路中断等异常状态。其中,在查询MDU的告警信息时,响应消息也可成为告警消息。响应消息中包括的告警信息有:告警的级别、发生位置、告警码、发生时间、告警类型、告警原因等告警信息。
步骤204、比较配置类型与实际类型;
这里,首先需要根据配置类型对应的系统标识从网管数据库的映射表中获取该MDU的实际类型。具体地,MDU的系统标识作为区分MDU的唯一标识,每个系统标识对应唯一的实际类型,系统标识与其对应的实际
类型的对应关系保存在网管数据库映射表中。进行配置类型与实际类型的比较时,网管服务端从系统缓存中读取该配置类型对应的实际类型。
网管服务端通过系统标识将该MDU对应的配置类型实际类型进行比较,若类型不一致,则在步骤205中,上报轮询结果时,将实际类型上报至网管客户端。若类型不一致,则在步骤205中,不进行网元类型相关的处理。
其中,网管服务端可通过设置配置文件来设置是否检测MDU的配置类型;具体地,可在配置文件中设置开关量,当配置文件中的开关量打开时,检测MDU的配置类型,并比较配置类型与实际类型;否则,不检测MDU的配置类型。
需要说明的是,步骤203和步骤204的执行不分先后顺序。
步骤205,上报轮询结果;
网管服务端根据步骤203和步骤204的具体过程上报轮询结果至网管客户端,已将MDU的当前信息同步至网管客户端。这里,在上报的轮询结果中,根据步骤203和步骤204的比较结果,可只上报告警信息、或只上报MDU实际类型,也可同时上报MDU的告警信息和MDU的实际类型;其中,当上报MDU实际类型时,携带该实际类型对应的系统标识,以保证在网管客户端中,实际类型与系统标识之间对应关系的正确性。
步骤206,结束本次链路轮询;
结束本次链路轮询,根据定时器的轮询周期执行步骤202进行再次链路轮询。
在实际应用中,在网管客户端中,系统标识与网元数据具有一定的对应关系,当局方进行MDU的业务配置的过程中,将系统标识为A的网元设备的配置数据配置为系统标识为B的网元设备的配置数据。此时,在网管客户端,A网元设备的配置数据显示的B网元设备的配置数据,且其系
统标识显示为B。在本发明实施例提供的链路轮询方法中,网管服务端向A网元设备发送请求消息,当A网元设备在线时,收到A网元设备的携带的系统标识A及其对应的配置数据。当A网元设备携带的配置数据与A网元设备的实际数据不一致时,表明网管客户端中的配置数据对应的系统标识为A以外的其他标识B,此时,网管服务端将A网元设备的系统标识A以及其对应的实际类型上报给网管客户端,以纠正网元设备的在客户端中的配置数据,并由网管客户端将纠正后的正确的配置数据下发至网元设备以保证正常业务的进行。
在实际应用中,当网管服务端未接收到网元设备返回的响应消息时,网管设备无法获知该网元设备的状态,则该网元设备为未知状态,此时,将该网元设备设置为离线状态,作为离线状态进行处理,自动忽略对该网元设备的链路轮询。
为实现上述方法,本发明实施例还提供一种链路轮询的装置,所述装置应用与网管服务端30,该装置包括:发送模块301、解析模块302、比较模块303;其中,发送模块301,配置为根据轮询周期发送获取网元设备的配置数据的请求消息;解析模块302,配置为当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;比较模块303,配置为将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理。其中,比较模块303,具体配置为:当所述配置数据与所述实际数据不一致时,上报所述实际数据;当所述配置数据与所述实际数据一致时,不做处理。
如图3所示,该装置还可以包括:提取模块304,配置为从数据库提取并保存所述实际数据。
该装置还可以包括:设置模块305,配置为接收到所述请求消息的响应消息时,设置所述网元设备为在线状态。
这里,所述请求消息携带有所述网元设备的系统标识;相应地,解析模块302,配置为解析所述响应消息,得到所述响应消息携带的与所述系统标识对应的配置数据。
如图3所示,该装置还可以包括:确定模块306,配置为根据所述系统标识确定与所述配置数据对应的自身保存的实际数据。
在实际应用中,本发明实施例提供的装置可以是单独的一个系统,也可以在现有的网元设备如网管服务器器中增加完成不同功能的逻辑单元。
如果在网管服务器中增加逻辑单元,那么,发送模块301及比较模块303可由位于网管服务器的中央处理器(CPU,Central Processing Unit)、数字信号处理器(DSP,Digital Signal Processor)、或可编程门阵列(FPGA,Field Programmable Gate Array)结合发射机实现;解析模块302、提取模块304、设置模块305及确定模块306可由位于网管服务器的CPU、DSP、或FPGA实现。
基于上述的链路轮询的装置,本发明实施例还提供一种链路轮询的系统,所述系统包括如图4所示的网管服务端30、网管客户端40、至少一个网元设备50;其中,
网管服务端30,配置为根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理;
网管客户端40,配置为接收所述网管服务端30上报的实际数据,并将所述实际数据下发至所述网元设备50;
网元设备50,配置为接收到所述请求消息时,返回所述响应消息;并接收到所述实际数据时,根据所述实际数据配置业务。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
基于此,本发明实施例还提供了一种计算机存储介质,所述计算机存储介质包括一组指令,当执行所述指令时,引起至少一个处理器执行上述的链路轮询的方法。
以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
Claims (15)
- 一种链路轮询的方法,所述方法包括:根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理。
- 根据权利要求1所述的方法,其中,在根据轮询周期发送获取网元设备的配置数据的请求消息之前,所述方法还包括:从数据库提取并保存所述实际数据。
- 根据权利要求1所述的方法,其中,所述方法还包括:接收到所述请求消息的响应消息时,设置所述网元设备为在线状态。
- 根据权利要求1所述的方法,其中,所述请求消息携带有所述网元设备的系统标识;相应地,解析所述响应消息,得到所述响应消息携带的与所述系统标识对应的配置数据。
- 根据权利要求4所述的方法,其中,在将所述配置数据与自身保存的实际数据进行比较得到比较结果之前,所述方法还包括:根据所述系统标识确定与所述配置数据对应的自身保存的实际数据。
- 根据权利要求1至5中任一项所述的方法,其中,所述根据所述比较结果上报实际数据或不做处理包括:当所述配置数据与所述实际数据不一致时,上报所述实际数据;或者,当所述配置数据与所述实际数据一致时,不做处理。
- 一种链路轮询的装置,所述装置包括:发送模块、解析模块、比较模块;其中,所述发送模块,配置为根据轮询周期发送获取网元设备的配置数据的请求消息;所述解析模块,配置为当接收到所述请求消息的响应消息时,解析所述响应消息,得到所述响应消息携带的配置数据;所述比较模块,配置为将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理。
- 根据权利要求7所述的装置,其中,所述装置还包括:提取模块,配置为从数据库提取并保存所述实际数据。
- 根据权利要求7所述的装置,其中,所述装置还包括:设置模块,配置为接收到所述请求消息的响应消息时,设置所述网元设备为在线状态。
- 根据权利要求7所述的装置,其中,所述请求消息携带有所述网元设备的系统标识;相应地,所述解析模块,配置为解析所述响应消息,得到所述响应消息携带的与所述系统标识对应的配置数据。
- 根据权利要求10所述的装置,其中,所述装置还包括:确定模块,配置为根据所述系统标识确定与所述配置数据对应的自身保存的实际数据。
- 根据权利要求7至11中任一项所述的装置,其中,所述比较模块,配置为:当所述配置数据与所述实际数据不一致时,上报所述实际数据;或者,当所述配置数据与所述实际数据一致时,不做处理。
- 一种链路轮询的系统,所述系统包括网管服务端、网管客户端、至少一个网元设备;其中,所述网管服务端,配置为根据轮询周期发送获取网元设备的配置数据的请求消息;当接收到所述请求消息的响应消息时,解析所述响应消息, 得到所述响应消息携带的配置数据;将所述配置数据与自身保存的实际数据进行比较得到比较结果,并根据所述比较结果上报所述实际数据或不做处理;所述网管客户端,配置为接收所述网管服务端上报的实际数据,并将所述实际数据下发至所述网元设备;所述网元设备,配置为接收到所述请求消息时,返回所述响应消息;并接收到所述实际数据时,根据所述实际数据配置业务。
- 根据权利要求13所述的系统,其中,所述网管服务端为权利要求8至12任一项所述的网管服务端。
- 一种计算机存储介质,所述计算机存储介质包括一组指令,当执行所述指令时,引起至少一个处理器执行如权利要求1至6任一项所述的链路轮询的方法。
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CN110932878A (zh) * | 2018-09-20 | 2020-03-27 | 中国移动通信有限公司研究院 | 一种分布式网络的管理方法、设备及系统 |
CN113986759A (zh) * | 2021-11-16 | 2022-01-28 | 中国工商银行股份有限公司 | 业务处理流程获取方法、业务架构流程验证方法及系统 |
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CN107528745B (zh) * | 2016-06-22 | 2022-05-13 | 中兴通讯股份有限公司 | 一种业务路径诊断方法和装置 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101083561A (zh) * | 2007-06-29 | 2007-12-05 | 中兴通讯股份有限公司 | xDSL用户连接参数汇总上报网管的方法 |
US20090217361A1 (en) * | 2008-02-25 | 2009-08-27 | Crandell Jeffrey L | Polling authentication system |
CN102082689A (zh) * | 2011-01-10 | 2011-06-01 | 武汉烽火网络有限责任公司 | 使用异步轮询方式产生设备告警信息的方法 |
CN103401701A (zh) * | 2013-07-17 | 2013-11-20 | 杭州华三通信技术有限公司 | 一种网络管理装置和方法 |
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-
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101083561A (zh) * | 2007-06-29 | 2007-12-05 | 中兴通讯股份有限公司 | xDSL用户连接参数汇总上报网管的方法 |
US20090217361A1 (en) * | 2008-02-25 | 2009-08-27 | Crandell Jeffrey L | Polling authentication system |
CN102082689A (zh) * | 2011-01-10 | 2011-06-01 | 武汉烽火网络有限责任公司 | 使用异步轮询方式产生设备告警信息的方法 |
CN103401701A (zh) * | 2013-07-17 | 2013-11-20 | 杭州华三通信技术有限公司 | 一种网络管理装置和方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110932878A (zh) * | 2018-09-20 | 2020-03-27 | 中国移动通信有限公司研究院 | 一种分布式网络的管理方法、设备及系统 |
CN113986759A (zh) * | 2021-11-16 | 2022-01-28 | 中国工商银行股份有限公司 | 业务处理流程获取方法、业务架构流程验证方法及系统 |
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