WO2012155648A1

WO2012155648A1 - Northbound notification management interface apparatus and management method thereof

Info

Publication number: WO2012155648A1
Application number: PCT/CN2012/072600
Authority: WO
Inventors: 李玲; 洪科
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-05-13
Filing date: 2012-03-20
Publication date: 2012-11-22
Also published as: CN102185720A

Abstract

A northbound notification management interface apparatus and a management method thereof are provided for improving system stability. The method comprises storing changed subscription notification information into a notification information file when a notification message subscribed by a higher-level network management is changed; monitoring whether a first notification server as the current notification server works abnormally; when monitoring that the first notification server works abnormally, reading the subscription notification information stored in the notification information file and loading it into a second notification server; switching the second notification server to be the current notification server. The apparatus includes a northbound notification management interface access module, a link monitoring module, a file online loading module, and a hot switching module. The hot backup method using double notification servers in the present invention enables the notification to be still reported when a master notification server fails, so a system operates stably and the fault-tolerance of the system is improved.

Description

North direction notification management interface device and management method thereof

Technical field

The present invention relates to the field of telecommunication network management northbound interface, and particularly relates to a northbound notification management interface device and a management method thereof.

Background technique

(Manager) and agent (Agent). The manager's task is to send a management command and receive a notification from the agent; the agent's task is to directly manage the relevant management object, receive the management command sent by the manager, and return the operation response to the manager (when confirming the operation) , you can also send a notice to the manager when you need it.

In the network management of the mobile communication network, the superior network management system (NMS) assumes the role of the Manager, and the mobile communication network element device (NE) or its operation and maintenance system (OMC) assumes the role of the agent. The network management interface between them is the northbound interface.

With the increasing requirements for the unified management of integrated network management, the demand for integrated network management to obtain OMC information is increasing in both types and quantities. The manner in which the NMS obtains information from the OMC includes the management action and the response interaction, and the notification reporting method. The notification reporting method is an important means for the NMS to obtain real-time information from the OMC. Therefore, for the northbound interface of the entire network management system, the northbound interface The stability of the notification management interface module (referred to as the northbound notification management interface module) is highly valued, and it is very urgent to improve the robustness of the notification management interface module.

The current general method for implementing the northbound notification management interface module is to use the notification server method. The steps used in the traditional method are as follows:

Step A. Start the notification server, load various parameters, and notify the server to load the information of the upper-level network management that has subscribed to the notification;

Step B. The OMC generates a notification, and notifies the server to report the notification generated by the OMC to the upper-level network management system that has subscribed the notification;

Step C. The NMS can operate on the functions provided in the Notification Management Interface Module, including ordering Notification, cancel order, etc.; Step D. Notify server abnormality detection.

In the link monitoring interface function, a heartbeat link is used to monitor the link information between the NMS and the notification server. When a problem is detected on the link, the upper-layer network administrator needs to notify the OMC related personnel to check the problem. During the recovery process, notifications will not be sent to the NMS in real time.

Because the notification server is used frequently, the probability of occurrence is high. When the notification server is faulty, the notification generated by the OMC, especially the notification with high importance, cannot be reported to the NMS in real time. Therefore, the traditional method is more fault-tolerant. Poor, the stability of the northbound notification management interface module cannot be guaranteed.

Summary of the invention

The technical problem to be solved by the present invention is to provide a northbound notification management interface device and a management method thereof to improve the stability of the system.

To solve the above technical problem, the present invention provides a northbound notification management interface device, including: a northbound notification management interface access module, a link monitoring module, a file online loading module, and a hot switching module, wherein:

The northbound notification management interface access module is configured to: when the notification message of the upper-level network management subscription changes, store the changed subscription notification information in the notification information file;

The link monitoring module is configured to: monitor whether the first notification server that is the current notification server works abnormally;

The file online loading module is configured to: read the subscription notification information stored in the notification information file when the link monitoring module monitors that the first notification server works abnormally, and load the same into the second notification server;

The hot switching module is configured to: switch the second notification server to the current notification server. Preferably, the northbound notification management interface access module includes a northbound notification operation module and a file saving module, where:

The northbound notification operation module is configured to: receive a command of the notification operation sent by the upper-layer network management, parse the command, and perform an operation, and return the operation result to the upper-level network management; The file saving module is configured to: when the notification operation sent by the upper-layer network management causes the notification message of the upper-level network management subscription to be changed, store the changed subscription notification information in the notification information file.

Preferably, the notification operation comprises one or more of the following operations: order notification, cancel order, suspend order, resume order, ^ 爹 tamper order parameter, query order number, query order parameter, query order type .

Preferably, the file online loading module comprises a file reading module and a file loading module, wherein:

The file reading module is configured to: when the link monitoring module monitors that the first notification server is abnormal, read the subscription notification information of the current notification server from the notification information file, and send the same to the file loading module;

The file loading module is configured to: load the subscription notification information read by the file reading module to the second notification server.

Preferably, the link monitoring module is configured to: monitor whether the first notification server working as the current notification server is abnormal in the following manner: the link monitoring module periodically receives the heartbeat notification sent by the current notification server, when If the heartbeat notification is not received in one or more consecutive cycles, it is determined that the current notification server is working abnormally.

Preferably, the hot switching module is configured to: switch the second notification server to the current notification server in the following manner, and modify the current notification reporting port to the reporting port of the second notification server.

To solve the above technical problem, the present invention also provides a management method of a northbound notification management interface device, including:

When the notification message of the upper-level network management subscription is changed, the changed subscription notification information is stored in the notification information file;

Monitoring whether the first notification server working as the current notification server is abnormal;

Reading the subscription notification information stored in the notification information file when monitoring that the first notification server is abnormal, and loading it into the second notification server;

Switch the second notification server to the current notification server.

Preferably, the step of monitoring whether the first notification server of the current notification server works abnormally comprises: periodically receiving a heartbeat notification sent by the current notification server, when consecutive one If the heartbeat notification is not received in multiple cycles, it is determined that the current notification server is working abnormally.

Preferably, the step of switching the second notification server to the current notification server comprises: modifying the current notification reporting port to the reporting port of the second notification server.

Compared with the conventional technology, the dual-notification server hot backup method of the embodiment of the present invention realizes that the notification can still be reported in the case of the failure of the main notification server, so that the system runs stably and improves the fault tolerance of the system; Link monitoring method. BRIEF abstract

1 is a schematic structural view of an apparatus according to an embodiment of the present invention;

2 is a flow chart of a method according to an embodiment of the present invention. Preferred embodiment of the invention

In order to make the objects, the technical solutions and the advantages of the present invention more clearly, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments of the present application may be arbitrarily combined with each other.

Example 1

In order to improve the robustness of the northbound notification management interface module, this embodiment is implemented by using a notification server dual-system hot backup. By deploying two notification servers on different ports at the same time, when one notification server has a problem, it immediately switches to another notification server, and after hot switching, it can be used immediately.

As shown in FIG. 1, the northbound notification management interface device of this embodiment includes: a northbound notification management interface access module, a link monitoring module, a file online loading module, and a hot switching module, where:

The northbound notification management interface access module is configured to store the changed subscription notification information in the notification information file when the notification message subscribed by the upper-layer network management is changed;

The link monitoring module is configured to monitor whether the first notification server that is the current notification server works abnormally; The file online loading module is configured to read the subscription notification information stored in the notification information file when the link monitoring module monitors that the first notification server works abnormally, and load the information into the second notification server;

The hot switching module is configured to switch the second notification server to the current notification server.

Through the above device, seamless switching between the first notification server and the second notification server can be realized, and the stability and fault tolerance of the system are improved.

Preferably, the northbound notification management interface access module comprises a northbound notification operation module and a file save module, wherein:

The northbound notification operation module is configured to receive a command for the notification operation sent by the upper-level network management system, parse the command and perform the operation, and return the operation result to the upper-level network management system; the notification operation includes one or more of the following operations: order notification, 4 sales order , suspend ordering, resume ordering, tamper with ordering parameters, check ordering numbers, check ordering parameters, and query order types;

The file saving module is configured to store the changed subscription notification information in the notification information file when the notification operation sent by the upper-level network management system causes the notification message of the upper-level network management system to be changed.

Preferably, the file online loading module includes a file reading module and a file loading module, wherein: the file reading module is configured to read the current notification server from the notification information file when the link monitoring module monitors that the first notification server works abnormally Order notification information, send it to the file loading module;

a file loading module, configured to load the subscription notification information read by the file reading module to the second notification server, so that the second notification server knows that the current system notifies the subscription status, so that it can report the subscription status according to the current notification after the handover. Notification, to achieve the same purpose as the first notification server.

Each notification server has its own reporting port, and the hot switching module switches the second notification server to the current notification server, specifically modifying the current notification reporting port to the reporting server of the second notification server.

The following network management systems are described as an example of the OMC, and the above devices are installed in each lower-level network management OMC. The following primary notification server is the first notification server, and the alternate notification server is the second notification server. The northbound interface can be any of the following interfaces: CORBA (Common Object Request Broker Architecture) interface, SNMP (Simple Network Management Protocol) interface, TL1 interface, MTOSI (Multi-Technology) Operations System Interface, multi-technology operating system interface) interface, XML (Extensible Markup Language) interface, JAVARMI (Java Remote Method Invocation) interface and RPC (Remote Procedure Call) interface. The lower-level network management OMC is different, and the northbound interface used may be different. The specific northbound interface may be determined according to the type and requirements of the lower-level network management OMC.

The northbound notification management interface access module refers to the access module of the lower-level network management NMS operating the lower-level network management OMC northbound notification interface. When the upper-layer network management NMS needs to perform the notification operation, the NMS sends a notification operation command to the northbound notification management interface access module, and the northbound notification The management interface access module parses the command and performs the operation, and stores the notification information in the notification information file.

Lower-level network management When the OMC system starts, the OMC automatically subscribes to the internal notification server to subscribe to the heartbeat notification, and the notification server periodically sends a heartbeat notification to the link monitoring module to inform itself of its existence. Normally, the link monitoring module will periodically receive heartbeat notifications to determine that the link is up and the notification server is working properly. If the link monitoring module does not receive the notification for one or more consecutive periods, it may conclude that the link is interrupted or notifies that the server is not working properly, and automatically sends a notification server link abnormal signal to start the file online loading module.

When receiving the signal sent by the link monitoring module, the file online loading module reads the notification information file, loads the notification information into the standby notification server, and starts the hot switching module after the loading is completed.

After receiving the startup signal of the file loading module, the hot switching module modifies the lower-layer network management notification reporting port, and the value is modified to the standby notification server port. At this time, the standby notification server is started, so that the notification server reaches the primary notification server to the standby notification. Seamless server switching. The primary and secondary notification servers use different TCP network ports on the OMC.

When the standby notification server is the current notification server, the current notification server may be regarded as the primary notification server. When the original primary notification server is faulty, it serves as the alternate notification server of the current notification server. Example 2

The management method of the northbound notification management interface device includes:

Switch the second notification server to the current notification server.

Specifically, the step of monitoring whether the first notification server working as the current notification server is abnormal includes: periodically receiving a heartbeat notification sent by the current notification server, and determining that the heartbeat notification is not received after one or more consecutive periods, The current notification server is working abnormally.

Specifically, the step of switching the second notification server to the current notification server includes: modifying the current notification reporting port to the reporting port of the second notification server.

The above method will be described in detail below with reference to FIG. The first notification server is the primary notification server, and the second notification server is the standby notification server. As shown in FIG. 2, the following steps are included:

Step 201: When the upper-layer network management needs to perform the notification operation, the notification operation command is sent to the northbound notification management interface access module;

Step 202: The northbound notification management interface access module parses the command, and after the corresponding processing is performed, returns the processing result to the upper-layer network management system, and stores the notification operation information in the notification information file;

Step 203: The link monitoring module periodically receives the link heartbeat notification sent by the current notification server (for example, the primary notification server). If the link monitoring module receives the heartbeat notification, it indicates that the current notification server works normally, if multiple consecutive cycles If the heartbeat notification is not received, the current notification server is abnormally working, and a link abnormality command is sent to the file online loading module.

Step 204: The file loading module reads the subscription notification information from the file and loads it into the alternate notification server. At this time, the standby notification server notifies that the subscription condition is consistent with the primary notification server subscription notification condition; Step 205: After the file loading module file is loaded, the switching command is sent to the hot switching module. Step 206: The hot switching module modifies the notification reporting port of the current notification server to the notification reporting port of the standby notification server.

Step 207: The standby server continues to report the notification to the upper-layer NMS to implement seamless handover.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program instructing the associated hardware, such as a read-only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

It is a matter of course that the invention may be embodied in various other forms and modifications without departing from the spirit and scope of the invention.

Industrial applicability

The dual-notification server hot backup method in the embodiment of the present invention realizes that the notification can still be reported in the case of the failure of the main notification server, so that the system runs stably and improves the fault tolerance of the system. In addition, the embodiment of the present invention also improves the notification server link monitoring method.

Claims

Claim

A northbound notification management interface device, comprising: a northbound notification management interface access module, a link monitoring module, a file online loading module, and a hot switching module, wherein:

The hot switching module is configured to: switch the second notification server to the current notification server.

2. The apparatus according to claim 1, wherein

The northbound notification management interface access module includes a northbound notification operation module and a file saving module, where:

The northbound notification operation module is configured to: receive a command for the notification operation sent by the upper-layer network management system, parse the command, and perform the operation, and return the operation result to the upper-layer network management system; the file saving module is configured to: the notification operation sent by the upper-layer network management system leads to the upper-level network management When the notification message of the order is changed, the changed order notification information is stored in the notification information file.

3. The apparatus according to claim 2, wherein

The notification operation includes one or more of the following operations: order notification, 4 sales order, suspend order, resume order, modify order parameters, query order number, query order parameters, and query order type.

4. The apparatus according to claim 1 or 2 or 3, wherein

The file online loading module includes a file reading module and a file loading module, where: the file reading module is configured to: read from the notification information file when the link monitoring module monitors that the first notification server is abnormal in operation Obtaining the subscription notification information of the current notification server, and sending the information to the file loading module; The file loading module is configured to: load the subscription notification information read by the file reading module to the second notification server.

5. The apparatus according to claim 4, wherein

The link monitoring module is configured to: 监视 monitor whether the first notification server working as the current notification server is abnormal in the following manner:

The link monitoring module periodically receives the heartbeat notification sent by the current notification server, and if the heartbeat notification is not received for one or more consecutive periods, it determines that the current notification server is working abnormally.

6. The apparatus according to claim 1 or 2 or 3 or 5, wherein

The hot-switching module is configured to: switch the second notification server to the current notification server in the following manner, and modify the current notification reporting port to the reporting port of the second notification server.

7. The method for managing a northbound notification management interface device according to claim 1, comprising: storing the changed subscription notification information in a notification information file when the notification message ordered by the upper-layer network management is changed;

Switch the second notification server to the current notification server.

8. The method of claim 7, wherein

The step of monitoring whether the first notification server of the current notification server works abnormally includes:

The heartbeat notification sent by the current notification server is periodically received. When the heartbeat notification is not received for one or more consecutive periods, it is determined that the current notification server is abnormal.

9. The method according to claim 7 or 8, wherein

The step of switching the second notification server to the current notification server includes: modifying the current notification reporting port to the reporting port of the second notification server.