KR20030058025A - System and Method of Managing Network in the ATM Network - Google Patents

Abstract

PURPOSE: A network management system in an ATM(Asynchronous Transfer Mode) network and a method therefor are provided to directly access a database of a system and extract and change necessary data by adding only an agent in the system. CONSTITUTION: An MIB(Management Information Base) database(42) manages information necessary for network management by an MIB structure type. An agent(41) analyzes the numbering request of a manager(30), searches an object in an MIB, and directly reads a value corresponding to the searched object from the MIB database(42). A plurality of application blocks(43) access data necessary for operating a system from the MIB database(42) according to the composition of the MIB database(42), and change, add, and delete the accessed data.

Description

System and Method of Managing Network in the ATM Network

The present invention relates to a network management system and method in an ATM network. In particular, in applying a simple network management protocol (SNMP) to an ATM switch, an ATM is configured to MIB a database in the ATM switch so that the MIBized database is set in the system. A network management system and method in a network.

In general, the configuration of the system for network management in the ATM network corresponding to the case where the agent exists separately from the switchboard, as illustrated in FIG. 1, performs an interface between the switchboard 11 and the corresponding switchboard 11. Human Machine Interface (HMI) Server (12) and an agent that extracts data necessary for system operation from the corresponding exchange 11 through the corresponding HMI server 12 as an object of network management through SNMP, a network management protocol. (13) and a manager 14, which is a subject of network management through SNMP, in the switch 11, a plurality of application blocks for reading data necessary for operating the system according to the request of the agent 13 ( 15) and a MMC (Man Machine Command) database 16 for managing data required for system operation. Here, the database 16 is configured on a connection basis generated using resources.

The network management operation in the ATM network configured as described above is as follows.

First, the manager 14 requests the agent 13 for necessary information by using numbering, which is an interface of the MIB. Herein, the configuration units of the MIB are configured based on one resource.

Accordingly, the agent 13 needs a mapping operation in order to extract data corresponding to the request of the manager 14 in the MIB unit from the MMCized database 16 in the exchange 11, that is, the manager ( 14) It finds the object in the MIB structure by analyzing the number that is applied from it, defines the required algorithm according to the object in order to satisfy the necessary information, and creates a procedure to display the necessary information according to the procedure. ) To the application block 15 in the exchange 11.

The procedure is as follows.

First, if there is an attribute in the database 16 that matches the requested object, the value is read, which is the same as having the index value immediately when reading the value. If not, it can be classified accordingly. In other words, if there is an index value, the database 16 is accessed with the same value. On the other hand, if there is no index value, the database 16 is accessed by accessing multiple databases to create an index of the database 16. After that, the database 16 is accessed with the value.

Second, access multiple databases and combine the values to find the value that matches the requested object.

Third, request directly to the application block 15.

Accordingly, the application block 15 reads data necessary for operating the system from the database 16 according to the request of the agent 13 and notifies the agent 13 through the HMI server 12. .

On the other hand, the configuration of the system for network management in the ATM network corresponding to the case where the agent is present in the exchange consists of the switch 21 and the manager 22, as shown in Figure 2, the corresponding switch 21 ) Includes an agent 23, a plurality of application blocks 24, and an MMCized database 25. Since the description of the operation of the configuration is similar to that described above, the description is omitted, but the agent 23 in the switch 21 further includes an interface for matching the MIB with a different database, and the manager in MIB units through the interface. In response to the request of (23), the above-described operation is requested, extracted, and processed in the MMC format, and then informed to the manager 22.

In other words, when SNMP is applied to a conventional ATM switch, a method of directly accessing an MMCization database from an agent and requesting data required for a corresponding application is used. The method needs to be performed in an agent. The work must also be done in that application. As a result, in all cases, a value required for the structure of the MIB is set and transmitted from the agent to the manager. In order to satisfy the required MIB data, the above-described operation must be performed.

The conventional exchange operated the whole system with the MMC-ized database. In the case of integrating network management to the exchange, the MIB structure, which is the data required by the manager through the above complicated procedure, cannot be directly interlocked with its own database and the MIB. Had to meet. To this end, several functional blocks were added and additional procedures were required. Also, it was very difficult and complicated to ensure the correspondence between the MIB data necessary for network management and the database running in the exchange.

This is because the structure itself is formed on the basis that exchange and network management are considered separately. Since the system was operated, it was necessary to perform the complicated procedure as described above in order to obtain the necessary value from the database made according to the operation procedure of the system when the network management process was performed thereafter.

As described above, in the conventional ATM network, the network management system could not satisfy all the values required by the MIB because the database was not initially created with all the considerations in mind. Because it was not a structure that was directly accessed and processed in, it had to be done through a complicated procedure, and much was added to this. In addition, it was difficult to guarantee the consistency of both operating the system immediately and operating the system through network management. For example, in the case of using or releasing resources, the resources used by one side should be notified to the other side. Additional processing was necessary because the processing cannot be terminated only in the database itself.

In order to solve the problems as described above, the present invention in applying SNMP to the ATM switch, by MIB the database in the ATM switch to set the MIB-ized database in the system, the contents of the MIB to the ATM operation By reflecting all the necessary data, the database structure for ATM operations is matched with the MIB structure and the database is accessed directly from the agent, simplifying the work of conventional agents. Since it is a draft format, it includes all parts that are applied in common, so that it can be directly managed without any additional work even if it is linked with any manager in the future.

1 is a configuration block diagram schematically showing a system for network management in a typical Asynchronous Transfer Mode (ATM) network as an example.

2 is a configuration block diagram schematically showing a system for network management in a general ATM network as another example.

3 is a block diagram illustrating a system for network management in an ATM network according to an embodiment of the present invention.

4 is a flowchart illustrating a method for network management in an ATM network according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30: Manager

40: exchanger

41: Agent

42: MIB (Management Information Base) database

43: application block

In the ATM network according to an embodiment of the present invention for achieving the above object, a network management system for managing the information necessary for network management in the form of MIB (Management Information Base) structure; An agent for analyzing a numbering request of a manager to find an object in the MIB and read a value corresponding to the object directly from the MIBization database; According to the configuration of the MIB database is characterized in that it comprises a plurality of application blocks to access the data necessary for operating the system from the MIB database to perform the change, addition and deletion process.

On the other hand, the network management method according to an embodiment of the present invention for achieving the above object in the application of SNMP (Simple Network Management Protocol) to the switch, corresponding to the system by MIB to the database in the switch Setting up a MIBized database; Checking whether the SNMP request received from the manager is a get command, directly accessing the MIBization database to read and transmit the necessary values.

Preferably, the MIB database setting process is characterized in that the contents of the MIB reflect all the data necessary for ATM operation to match the database structure for ATM operation with the MIB structure.

Also preferably, the transmitting of the necessary values may include analyzing an numbered number received from the manager to find an object in a MIB; And reading a value corresponding to the object directly from the MIBization database and transmitting the value to the manager.

Alternatively, in the ATM network according to an embodiment of the present invention, if the SNMP request received from the manager is a set command, whether the MIBization database is processed in association with a specific value in a memory of an application block in the exchange. Checking the process; If the MIBization database is not processed in conjunction with a specific value in the memory of the application block in the exchange further comprises the step of directly accessing the MIBization database in the application block to perform the modification, addition and deletion process It is characterized by.

Alternatively, in the ATM network according to the embodiment of the present invention, the MIBization database is applied to the MIBization database for the specific value when the MIBization database is processed in association with the specific value in the memory of the application block in the exchange. The method further includes a process of adding, modifying, adding, and deleting an attribute by implementing the processing of the MIBized database as a procedure. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The system for managing a network in an ATM network according to an embodiment of the present invention is configured to integrate and process two different databases into one. That is, maintaining the same data in different forms in different databases is a waste of resources. Since many procedures are required and many are unstable, separate blocks and procedures for network management as well as data matching can be achieved by adding functionality to each application that requires data from the database and consolidating the two databases into one. It can be used to directly access the database and create data for network management without having to perform it.

As shown in FIG. 3, the present invention includes a manager 30, a switch 40, and an agent 41, a MIBization database 42, and a plurality of application blocks within the switch 40. Including 43.

The manager 30 requests and receives information required for network management from the agent 41 in the switch 40 using numbering, which is an interface of the MIB.

The agent 41 analyzes the numbered number received from the manager 30, finds an object in the MIB, reads the value corresponding to the object directly from the MIBization database 42, and sends it to the manager 30. Do it.

The MIBization database 42 manages information necessary for network management in the form of a MIB structure.

The application block 43 accesses data required for system operation from the MIBization database 42 according to the configuration of the MIBization database 42 to perform a change, add, and delete operation.

A method for network management in an ATM network according to an embodiment of the present invention will be described with reference to the flowchart of FIG. 4.

By unifying the structure that manages all the different databases into one database, it becomes simpler and more stable network management. First, the MIB released from the IETF workgroup is defined as the basic database type. Configure your production database.

That is, in applying SNMP to the switch 40, the database in the switch 40 is MIBed (step S1) to set the MIB-ized database 42 in the system, and the contents of the MIB are used for ATM operation. All necessary data is reflected to match the database structure for ATM operation with the MIB structure (step S2).

Then, when the manager 30 requests the network management data via SNMP to the agent 41 in the switch 40 using the numbering which is the interface of the MIB, the agent 41 from the manager 30. You will receive a numbered number.

At this time, the network management data through the SNMP request data of the MIB format and the database operated in the system is the MIBization database 42, so that the request received from the switch 40 is received by the manager 30. Check whether it is a get command (step S3). If the get command (get), the agent 41 reads the necessary values directly from the MIBization database 42 and sends it to the manager 30. Will be done.

That is, the agent 41 analyzes the numbered number received from the manager 30 (step S4), finds an object in the MIB (step S5), and obtains a value corresponding to the object from the MIBization database 42. It reads directly and transmits it to the said manager 30 (step S6).

On the other hand, if the set command (set) in the third step (S3), whether the MIBization database 42 is a portion that is processed in the application block 43 by changing a specific value or linked to a separate memory Check (step S7).

At this time, when the MIBization database 42 is not processed in conjunction with a specific value in the memory of the application block 43, the application block 43, the set command received from the manager 30 In response to this, the MIBization database 42 is directly changed, added, and deleted (step S8).

When the MIBization database 42 is processed in association with a specific value in the memory of the application block 43, an attribute is added to the MIBization database 42 for the specific value or the MIBization database ( By implementing the processing for 42) as a procedure, the change, add, and delete processing operations are performed by the procedure (step S9).

As described above, according to the present invention, all the separate procedures for network management are omitted, and only the agent is added to the system to directly access the database of the system to extract and change the necessary data, thereby simplifying the procedure. It keeps the database unified and improves the accuracy of network management data by eliminating several procedures for accessing the database from one database.

Claims (6)

A MIBization database for managing information required for network management in the form of a Management Information Base (MIB) structure; An agent for analyzing a numbering request of a manager to find an object in the MIB and read a value corresponding to the object directly from the MIBization database; And a plurality of application blocks for accessing data required for system operation according to the configuration of the MIBization database from the MIBization database to perform modification, addition and deletion processing. In applying a simple network management protocol (SNMP) to a switch, the method may further include: setting a corresponding MIBized database in a system by MIB converting a database in the corresponding switch; A method for managing a network in an ATM network, comprising: checking whether an SNMP request received from a manager is a get command, directly accessing the MIB database, and reading and transmitting necessary values. The method of claim 2, Confirming whether the MIBization database is processed in association with a specific value in a memory of an application block in the exchange when the SNMP request received from the manager is a set command; If the MIBization database is not processed in conjunction with a specific value in the memory of the application block in the exchange further comprises the step of directly accessing the MIBization database in the application block to perform the modification, addition and deletion process Network management method in the AMT network, characterized in that. The method of claim 3, When the MIBization database is processed in association with a specific value in the memory of an application block in the exchange, an attribute is added to the MIBization database for the specific value or the processing for the MIBization database is implemented as a procedure. A method for managing a network in an ATM network, further comprising the step of performing a change, add, and delete process by a procedure. The method of claim 2, In the MIB database setting process, the contents of the MIB reflect all data necessary for ATM operation so that the database structure for ATM operation matches the MIB structure. The method of claim 2, The transmitting of the necessary values may include analyzing an numbered number received from the manager to find an object in a MIB; And reading the value corresponding to the object directly from the MIBized database and transmitting the value to the manager.