JP3617268B2 - TMN agent generation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic agent generation system based on a MO (Managed Object) definition in management of an exchange based on a TMN (Telecommunications Management Network) of a communication system.
[0002]
[Prior art]
Conventionally, network management has been performed based on TMN by ITU-T. Hereinafter, the conventional technology of TMN will be described.
FIG. 5 is an explanatory diagram of an outline of a conventional network management system based on TMN.
In FIG. 5, reference numeral 1 denotes an OS (Operations System) that is a system that manages a network, and reference numeral 2 denotes an NE (Network Element) that is a network management target system. Reference numeral 10 denotes a network management module built in the OS1, and 20 denotes an agent which is a network management module built in the NE2. The OS 1 manages the NE 2 by a CMIP (Common Management Information Protocol) format management operation 40 from the OS 1 to the NE 2 and a CMIP format notification 41 from the NE 2 to the OS 1. The agent 20 converts the database 200 when converting the CMIP format operation 40 from the OS 1 into the internal format command 50 or when converting the internal format message 51 from the processing software 30 in the NE 2 into the CMIP format notification 41. Perform conversion using. Since transmission / reception of the internal format command messages 50 and 51 between the agent 20 and the processing software 30 is performed via the XMP / XOM format API 5 defined by X / Open, the internal format command 50 and the message 51 are also XMP / XOM. The format conforms to the format API5.
Also, the creation and management of header files and documents that define the parameters of the internal format command messages 50 and 51 that assist the development of the processing software 30 has been a manual task.
[0003]
FIG. 6 is an explanatory diagram of a conventional scope and filter.
When an operation is performed on a plurality of managed objects in one operation, the scope of the operation is specified by a scope and a filter. In FIG. 6, reference numeral 201 denotes an inclusion tree (MIT: Management Information Tree) of an MO instance (object) 210 that abstracts a management target that can be seen from the OS, and means that an upper object includes a lower object. Individual objects do not necessarily have to be mapped one-to-one with the processing software 30 that is the actual management target. The scope 212 selects a plurality of objects 202 by specifying a scope type such as “all objects from there to a lower level” starting from the base object 211 in the MIT 201. The filter 203 narrows down the operation target to a plurality of objects 202 selected by the scope 212 to only those that meet the filter condition 230.
In FIG. 6, the operation target is narrowed down to the object 204 finally narrowed down by the filter 203.
[0004]
FIG. 7 is a detailed explanatory diagram of the filter in FIG.
The filter 203 is combined under an arbitrary condition 301. For example, in the logical expression 302 and the condition 301 in FIG. 7, the negation of the logical sum from the condition A to the condition C is a filter. The value of the condition 301 is a logical value obtained by testing an attribute value represented by a certain attribute identifier 311 using a value 312 specified by a filter according to a condition specified by a filter item 310. For example, under the condition that the attribute AAA is equal to 5, the filter item 310 is equal (=), the attribute identifier 311 is AAA, and the value 312 is 5.
Since there are many variations in the combination of the scope 212 and the filter 203, only a very limited combination is supported in the prior art.
[0005]
[Problems to be solved by the invention]
As described above, the conventional techniques have the following problems. That is, (1) In FIG. 5, since the database 200 is used for the analysis and translation processing of the agent 20 which is online software, there is a problem that the processing time becomes long and the performance of the agent does not increase.
Further, in FIG. 5, the internal format command 50 and the internal format message 51 between the agent 20 and the processing software 30 conform to the XMP / XOM format API 5, but this API passes parameters by an array of pointer lists. Since it has a complicated format, the processing software has to incorporate processing for analyzing complex parameters, and the development efficiency of the processing software does not increase.
(3) In terms of development efficiency of processing software, the method of creating and managing the header file and the document representing the parameters used in the internal format command 50 and the internal format message 51 in FIG. 5 is only a manual method. However, the development efficiency was not improved.
Furthermore, (4) when the coding is performed for the first time, the only method for generating the analysis method for analyzing the destination processing software (30 in FIG. 5) from the complicated combination of the scope 212 and the filter 203 shown in FIG. In addition, the coding speed and accuracy when the configuration of the MIT 201 is changed are lacking, and the development efficiency of the agent software (20 in FIG. 5) is lowered.
Therefore, the object of the present invention is to solve these conventional problems, and to improve the performance of agent processing, support for a simple internal format, automatic generation of header files and documents, and support for complex scope / filter combinations. An object of the present invention is to provide a TMN agent generation system capable of automatically generating an agent that satisfies a condition from an MO definition.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, in the TMN agent generation system of the present invention, in the management system of the switch based on TMN, (A) the type of CMIP format operation from the manager to be managed corresponding to each operation based on the MO definition and It has an analysis method that realizes an analysis function that analyzes destination processing software in a managed object, and a translation method that realizes a translation function that converts a simple internal format command message between the manager, agent, and processing software. An agent is automatically generated from the MO definition.
In addition, (B) after analyzing the type of CMIP format operation from the manager by the analysis method, the format is converted into an internal format command by a dedicated translation method for each operation type, and from the processing software in the management target After analyzing the type of internal format message, format conversion to CMIP format notification is performed for each internal format message type using a dedicated translation method, and an agent is automatically generated from the MO definition.
Furthermore, (C) a database that prevents duplication of command / message types handled by agents and parameter names used in them is provided, and an agent that does not conflict between command / message types and parameter names is automatically generated from the MO definition.
[0007]
Thus, means for automatically generating agent software (translation method and analysis method) corresponding to a simple internal format command / message from the MO definition of (A) by the customization tool processes the agent software and the internal format command / message. The development efficiency of the NE processing software can be improved.
The means for automatically generating a header file and a document corresponding to the internal format command / message by the customization tool can further improve the development efficiency of the NE processing software.
The means for converting to the internal format command at a high speed by the dedicated translation method after the analysis of the CMIP format operation by the analysis method of (B) makes it possible to improve the performance of the agent software.
In addition, the means of using a dedicated method without using a general-purpose database for analysis and translation can further improve the performance of the agent software.
The means for performing parameter duplication management by the database provided in the customization tool of (C) prevents inconsistencies between operations derived from a plurality of MO definitions, and enables the consistency of the entire network management system to be maintained.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings.
FIG. 1 is a basic configuration diagram of a network management system showing an embodiment of the present invention.
In FIG. 1, 1 is an OS of a system that performs network management, 10 is a manager that is the network management module, 2 is an NE of a managed system of the network, and 20 is an agent that is the network management module. Manager 10 manages NE2 with CMIP format operation 40 to NE2 and CMIP format notification 41 from NE2. The agent 20 performs an analysis method 251 for analyzing the destination processing software 30 of the CMIP format operation 40, and a format conversion of the internal format command 240 from the CMIP format operation 40 and a format conversion of the CMIP format notification 41 from the internal format message 241. It has a method 252.
[0009]
The customization tool 406 is an offline tool that automatically generates the analysis method 251 and the translation method 252 from the input (referred to as the MO-oriented input 460) of the MO definition that defines the specification of the OS-NE interface 403.
The customization tool 406 includes a database 461 so that command message types and parameters do not overlap when a plurality of MO definitions are input, and the internal command message document 463 and header file 462 used by the processing software 30. Is also output.
In the present invention, the internal format command 240 and the internal format message 241 are in accordance with the MO-oriented internal interface 405, which is a simple format in which parameter values are arranged as a list, as compared with the prior art. The difference is that a customization tool 406 that automatically generates an analysis method 251 and a translation method 252 corresponding to a format command / message from an MO definition and a customization tool 406 manage document and parameter duplication.
[0010]
FIG. 2 is a basic configuration diagram of an agent of the network management system showing an embodiment of the present invention.
In FIG. 2, 502 is an analysis method in the agent, and 503 is a translation method. The analysis method 502 includes an MO class analysis 520 that analyzes which MO class the CMIP operation 40 from the OS is, an MO instance analysis 521 that analyzes the destination MO instance of the operation 40, and a CMIP operation type (Get, Set). Etc.), an analysis 530-532 of detailed information that differs for each operation type, and a scope filter analysis 524. As detailed information analysis, for example, in the case of a Get operation, an attribute list analysis 530 that analyzes a list of attribute identifiers to be acquired, and in the case of a Set operation, a value setting method and a list of attribute identifier / value pairs are displayed. There is a change list analysis 531 to be analyzed, and an action type analysis 532 for analyzing an action type in the case of an action operation. The scope / filter analysis 524 includes a part for analyzing a scope (base object analysis 540 for analyzing a base object and a scope type analysis 541 for analyzing a scope type), and a part for analyzing a filter condition (logical expression analysis 542, filter Item analysis 543 and attribute identifier analysis 544).
[0011]
2 translates the CMIP operation 40 from the OS based on the operation type 525, which is the analysis result of the analysis method 502, using the dedicated translation method 535 for each 525, and performs an internal type command 504. Is generated.
Compared with the conventional technique, the present invention performs the type conversion by the dedicated translation method 535 after obtaining the operation type by the analysis method 502, and does not use a general-purpose database for analysis and translation which is online software. Is different.
[0012]
FIG. 3 is an explanatory diagram of the analysis logic of the filter condition of FIG.
Focusing on the fact that there are four types of elements constituting the filter: logical expression 302, filter item 310, attribute identifier 311 and value 312, in this system, the combination of logical expression 302, filter item 310 and attribute identifier 311 Analyzes the type of filter. The reason why the value 312 is not used in the analysis is that the value 312 is given as an operation parameter, and thus changes dynamically for each operation.
The present invention differs from the prior art in that detailed filter analysis is performed.
[0013]
FIG. 3 is an operation flowchart of processing of an automatically generated agent according to the present invention.
This will be described with reference to FIGS. The CMIP format operation 40 from the OS to the NE includes 600 to 606 information. That is, 600 is the MO class A ~, 601 is the MO instance a ~, 602 is the MO instance of "all below", 603 is the value of "attribute AAA", and 604 is "5 or more". In a certain MO instance, ˜ is a value of “attribute BBB”, and 606 is an operation of “acquiring”.
When the analysis method 502 receives the CMIP format operation 40, the analysis method 502 first performs the MO class analysis 520 and determines from the information 600 that the MO class is A. In the MO instance analysis 521, it is determined from the information 601 that the destination MO instance is “a”. The operation type analysis 522 determines that the operation type is “Get” from the information 606 and activates an attribute list analysis 530 for analyzing the attribute list to be acquired.
[0014]
The attribute list analysis 530 determines from the information 605 that the attribute list is “BBB”. Next, the scope analysis 524 determines that the base object is “a” from the information 601 and the scope type is “all below” from the information 602. The filter analysis 524 analyzes that the logical expression is “none”, the filter item is “≧” from the information 604, and the attribute identifier is “AAA” from the information 603. The analysis method 502 determines the operation type (618) based on the above analysis result.
Next, the translation method 503 performs high-speed translation using a dedicated translation method based on the operation type 618 determined by the analysis method 502 and generates an internal format command 504.
In the above description, an appropriate example for the Get operation has been described. However, it is obvious that the present invention can also be appropriately applied to other CMIP format operations.
[0015]
【The invention's effect】
As described above, according to the present invention, since various methods, header files, and documents can be automatically generated from the MO definition by the customization tool, the performance of the agent processing is improved, the correspondence to a simple internal format, the header file It is possible to automatically generate an agent from the MO definition that satisfies the conditions of automatically generating a document and supporting complex scope / filter combinations.
[Brief description of the drawings]
FIG. 1 is a basic configuration diagram of a network management system showing an embodiment of the present invention.
FIG. 2 is a basic configuration diagram of an agent of a network management system showing an embodiment of the present invention.
FIG. 3 is an explanatory diagram of the analysis logic of the filter condition in FIG.
FIG. 4 is a flowchart of automatically generated agent processing according to an embodiment of the present invention.
FIG. 5 is a configuration diagram of a conventional network management system based on TMN.
FIG. 6 is an explanatory diagram of a scope and a filter.
FIG. 7 is a detailed explanatory diagram of a conventional filter.
[Explanation of symbols]
1 ... OS, 2 ... NE, 5 ... XMP / XOM format API, 10 ... manager,
20 ... Agent, 30 ... Processing software, 40 ... CMIP format operation,
41 ... CMIP format notification (notification),
50 ... Internal format command, 51 ... Internal format message, 200 ... Database,
201 ... MIT, 202 ... object selected by scope,
203 ... Filter, 204 ... Object captured by the filter,
210 ... object, 211 ... base object, 212 ... scope,
230 ... filter condition, 301 ... filter item, 302 ... logical expression,
311 ... Attribute identifier, 312 ... Value, 240 ... Internal format command,
241 ... Internal format message, 251 ... Analysis method, 252 ... Translation method,
403 ... OS-NE interface, 405 ... MO-oriented internal interface,
406 ... Customization tool, 460 ... MO-oriented input, 461 ... Database,
462 ... header file, 463 ... document, 502 ... analysis method,
503 ... Translation method, 504 ... Internal type command, 520 ... MO class analysis,
521 ... MO instance analysis, 522 ... Operation type analysis,
530 ... attribute list analysis, 531 ... change list analysis,
532 ... Action type analysis, 524 ... Scope / filter analysis,
540 ... Base object analysis, 541 ... Scope type analysis,
542 ... Logical expression analysis, 543 ... Filter item analysis, 544 ... Attribute identifier analysis,
525 ... Operation type.

Claims (3)

In a management system based on TMN (Telecommunications Management Network) defined by ITU-T,
Analyzing the type of CMIP format operation from the manager of the management target and the destination processing software in the management target corresponding to each operation based on the Managed Object definition that defines the management specification of the management target viewed from the management target . The MO class analysis unit that analyzes which MO class operation the CMIP format operation is, the MO instance analysis unit that analyzes the destination MO instance of the operation, the operation type analysis unit that analyzes the type of CMIP operation, and is different for each operation type Analysis method consisting of detailed information analysis part and scope filter part , and
CMIP operation analysis result of CMIP operation analysis method, CMIP format operation notification with the above manager and simple internal format command message between processing software in the management target An agent with a translation method to
A TMN agent generation system comprising: means for automatically generating the agent from the managed object definition. The TMN agent generation system according to claim 1,
The agent performs a type conversion of a CMIP format operation from a manager by an analysis method and then performs format conversion to a CMIP format notification by a dedicated translation method for each operation type. . The TMN agent generation system according to claim 1,
The means for automatically generating the agent includes a database that prevents duplication of the command / message type handled by the agent and the parameter name used in the command / message, thereby preventing an inconsistency between the command / message type and the parameter name. Agent generation system characterized by automatically generating a managed object definition from a managed object definition.

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