JPH10190764A - Network management interface converter and network management interface conversion method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To economically and flexibly perform the design and extension of a communication network and the introduction of a new equipment by utilizing a network management interface converter. SOLUTION: A conversion control part 302 specifies an address stored in a command transaction 305, reads conversion procedure definition information corresponding to a command from a CMIP conversion definition table 306 and registers it to a state transition control table 307. A CMIP-PDU editing part 303 forms the PDU of CMIP on a CMIP transaction 308 based on the information sent from the conversion control part 302 and sends the completed PDU to a communication equipment. Response information from the communication equipment to the transmitted PDU is received and analyzed in a response reception part 304 and tentatively stored in the CMIP transaction 308. The conversion control part 302 generates a response from the response information of the CMIP transaction 308 based on the conversion procedure definition information and sends the generated response to a network management system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to the international standard C
The present invention relates to a device which enables communication between a communication device having a network management interface of MIP (Common Management Information Protocol) and a management system having a network management interface other than CMIP.

[0002]

2. Description of the Related Art As an interface (network management interface) between a network management system and a communication device, CMIP, which is an international standard, is becoming widespread. In addition, ITU-T Recommendation M. As indicated by reference numeral 3010, there is known a network management system having a CMIP network management interface, and a network management interface conversion device capable of communicating with a communication device having a non-CMIP network management interface.

In communication between a network management system and a communication device,
A request for various operation instructions and various management information is sent from the management system to the communication device, and a response to the instruction and a report at the time of failure are made from the communication device to the network management system. That is,
The network management interface conversion device performs completely different conversion processing in communication in each direction between the communication device and the network management system. Therefore, by simply replacing the function of the conventional network management interface conversion device, the CM
It has not been possible to enable communication between a network management system having a non-IP network management interface and a communication device having a CMIP network management interface.

[0004]

Traditional network management systems with non-CMIP network management interfaces generally include:
It is a large-scale system that has accumulated long experience and know-how, and cannot be easily exchanged for other new management systems. However, even in this network management system, CMI
It has to cope with newer and more sophisticated communication devices with P network management interface. As described above, this is not possible with the above-mentioned conventional technology.

It is also desirable that the communication device can communicate not only with a network management system having a CMIP network management interface but also with a network management system having another network management interface.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a network management interface conversion device that enables a communication device having a CMIP network management interface to be managed by a management system having a non-CMIP network management interface.

It is another object of the present invention to provide a communication device capable of performing communication using a plurality of types of network management interfaces including a CMIP network management interface.

[0008]

In order to achieve the above object, the present invention is directed to a communication apparatus having an international standard CMIP as a network management interface and a network management system having a non-CMIP network management interface. A network management interface conversion device that enables communication between a network management interface of a network management system and a network management interface of a communication device, wherein the command information corresponds to each command information sent from the network management system. Stores information defining a method of generating a command PDU for realizing equivalent functions in the CMIP network management interface, and information defining a method of generating response information to be returned to the network management system in response to a response PDU. Storing the command information received from the network management system in correspondence with the command information. Based on the information unit is stored,
Downlink communication means for converting the command PDU into the command PDU and transmitting the converted command PDU to the communication device;
The response P returned from the communication device in response to the transmission of U
Uplink communication means for converting DU into the response information based on the information stored in the storage means corresponding to the instruction information, and transmitting the converted response information to the network management system. A feature is provided of a network management interface conversion device.

Further, the present invention provides a first communication unit having means for constituting the above network management interface conversion device,
A second communication unit that performs communication of a CMIP network management interface, wherein the first communication unit converts communication of the second communication unit into communication of a non-CMIP network management interface. Communication device.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings.

FIG. 1 is a diagram showing a configuration example of a communication network management network to which a network management interface conversion device according to an embodiment of the present invention is applied. The communication network management network shown in the figure has, as a conventional configuration, a network management system 101 having a network management interface other than CMIP, and a plurality of communication devices 104 and 105 having the same network management interface as the network management system 101. A new network management interface converter 102 and a communication device 103 having a CMIP network management interface are newly connected to this communication network management network. The network management interface conversion device 102 is connected to the network management system 101 and the communication device 103, and is connected to the network management system 101 and the communication device.
The conversion processing of the network management interface between 103 is performed.

Although various types of interfaces can be considered as the network management interface of the conventional management system 101 or the like, in the present embodiment, the commonly used IT
U-TZ. A character-based command / message language "TL1" according to the 300 series recommendation is used. It should be noted that the network management interface conversion device 102 can easily cope with a network management interface using another command / message language.

[0013] CMIP relates to a management protocol, and details thereof are described in ITU-T XT. 711 Recommendation, ISO /
It is specified by IEC standard 9596-1. CMI
In P, information indicating the attribute information and the communication state of the communication network and the communication device is managed in units of a management object (MO). For details on MO, please refer to the ITU
-TM. 3100, as well as ITU-TG. X.774, which defines a model of the system management function. It is specified by a number of standards such as the 730-740 series. These standards are still being updated by adding new functions and changing / adding management functions. In addition, such standards are numerous, and it is difficult to realize all the contents. For this reason, the network management interface conversion device 102 has a function of flexibly responding to selection of a standard to be adopted and change of the standard.

Next, the network management interface converter 102
Will be described in detail.

FIG. 2 shows a network management interface conversion device 10.
2 shows the basic functional configuration. 2, the network management interface conversion device 102 includes a command request receiving unit 301,
It has a conversion control unit 302, a CMIP-PDU editing unit 303, a response receiving unit 304, a command transaction 305, a CMIP transaction 308, and a conversion control data storage unit 309.
The conversion control data storage unit 309 includes a CMIP conversion definition table 306 in which a plurality of conversion procedure definition information are stored, and a state transition table 307.

In the CMIP network management interface, P
Information blocks called DUs are communicated. The PDU is
It comprises a CMIP operation, identification information of the MO to be accessed, and attribute information of the MO. In contrast, in the communication of the network management interface of the network management system 101, command information and response information are communicated. The control target of the command information is 1 in the above CMIP.
There may be one MO and a plurality of MOs.

The conversion procedure definition information of the CMIP conversion definition table 306 is information used for conversion from command information to PDU and from PDU to response information, and also defines an MO to be accessed and a method of accessing the MO. ing. When a plurality of MOs are to be controlled, a method of sequentially accessing the MOs or a method of accessing one MO and then accessing the next MO by observing the response is used. The conversion procedure definition information also includes information for converting CMIP report information (alarms and events) sent from the communication device 103 into report information of the network management interface of the network management system 101.

The conversion procedure definition information in the CMIP conversion definition table 306 is transmitted to the network management interface conversion apparatus 10 by the administrator.
2 and can be rewritten by an operation on the network management system 101. Further, the administrator can update the contents of the CMIP conversion definition table 306 collectively via a recording medium such as a floppy disk. As a result, the administrator can easily change the conversion method of the management interface and the specification of the command.

The processing performed by the network management interface converter 102 will be described with reference to the processing flow of FIG.

The command information from the network management system 101 is received and analyzed by the command request receiving unit 301, divided into a command code and a parameter string, and stored in the command transaction 305 (401). Conversion control unit 3
02 designates an address corresponding to the command code stored in the command transaction 305, reads out the conversion procedure definition information corresponding to the command from the CMIP conversion definition table 306, and registers it in the state transition control table 307. Then, a CMIP operation or the like corresponding to the command is determined based on the conversion procedure definition information,
This is sent to the CMIP-PDU editing unit 303 (412). CMI
The P-PDU editing unit 303 writes a CMIP transaction on the CMIP transaction 308 based on the information sent from the conversion control unit 302.
(403), and sends the completed PDU to the communication device 103 (404). When sequentially accessing a plurality of MOs, the above processes 403 and 404 are repeated.

Response information to the transmitted PDU from the communication device 103 is received and analyzed by the response receiving unit 304,
Once stored in the MIP transaction 308 (40
6,407). When it is necessary to receive a plurality of pieces of response information, the processes 406 and 407 are repeated (4
08, NO). When reception of all response information for the transmitted PDU is completed (409, NO), conversion control section 302
Generates a response from the response information of the CMIP transaction 308 based on the above-mentioned conversion procedure definition information, and sends the generated response to the network management system 101 (41).
0). Then, the process proceeds to the command information waiting state (40).
0). However, when accessing the next MO after accessing one MO and seeing the response (409, YE
In S), the process returns to the process 402, and after generating and transmitting PDUs are repeated, a response is generated from the response information and transmitted to the network management system 101.

A specific example of conversion and communication performed between the network management system 101 and the communication device 103 will be described with reference to FIGS.

FIG. 4 shows an example in which the command information of the network management system 101 for inquiring the status of the package is converted. This command information includes the command RTRV-EQP
In addition to T501, a plurality of parameters including an AID (access ID) are set. Network management interface converter 10
In the second, first, the command RTRV-EQPT501 is
This is converted into an IP Get operation, and MO classes 502, 503, 504 and instances are determined from parameters such as AID, and PDU generation and transmission are performed. When PST and SST (state identifier) parameters are set in the command information, the GET result (response) is filtered.

FIG. 5 shows the command RTRV-EQPT.
5 shows a message flow in communication 501. As shown in FIG. 5, when the command RTRV-EQPT501 is sent from the network management system 101, the network management interface conversion device 102 generates a plurality of PDUs for realizing the control of the command RTRV-EQPT501 and sends the PDU to the communication device 103. Then, response information is generated from the plurality of PDUs returned from the communication device 103 and transmitted to the network management system 101. As described above, the network management interface conversion device 102 realizes the conversion of the network management interface by a combination of simple and general-purpose functions.

FIG. 6 is a message flow in communication of report information. Report information (alarms and events) of the communication device 103 is transmitted to the network management interface conversion device 102 for each MO.
Sent to As shown in FIG. 6, when a plurality of pieces of report information 611, 612, 613 notifying the occurrence of an event are transmitted, the network management interface conversion device 102 converts only the first report information 611 and transmits it to the network management system 101. If a plurality of report information 621, 622, 623 notifying the release of the event is transmitted, the network management interface conversion device 102 receives and edits all the report information 621, 622, 623 to generate report information for the network management system 101, It is transmitted to the network management system 101.

As described above, according to the network management interface converter 102, a communication device having a CMIP network management interface can be managed by a management system having a non-CMIP network management interface. The plurality of network management interfaces to be converted by the network management interface conversion device 102 do not need to have the same expression format, management unit, management function, and report item. For this reason, by using the network management interface conversion device 102, it is possible to economically and flexibly design, expand, and introduce new equipment of a communication network. Furthermore, the network management interface converter 102 has an advantage that it can flexibly cope with a change in the definition of the network management interface such as CMIP or MO.

Next, a second embodiment of the present invention will be described.

FIG. 7 shows a configuration of a communication apparatus according to a second embodiment of the present invention. The communication device 203 shown in FIG. 7 is obtained by incorporating the function of the management network interface conversion device 102 into the communication device 103 of FIG. Device / signal management unit 204 having a function of performing communication processing of
And an interface conversion function unit 202 having the same functions as the management network interface conversion device 102 described above.

With this configuration, the communication device 203
Management system 201 with IP interface and CM
It can be connected to any of the management systems 101 having an interface that is not an IP. The device / signal management unit 202 of the communication device 203 directly communicates with the management system 201 having a CMIP network management interface, and when connecting to the network management system 101 having a non-CMIP network management interface, the interface conversion function unit 202 It communicates with the management system 101 via the. Similarly to the management network interface conversion device 102 described above, the interface conversion function unit 202
The conversion order definition information can be arbitrarily changed by an administrator, and all the conversion order definition information can be registered and updated collectively using a recording medium.

As described above, the communication device 203 can use a plurality of types of network management interfaces including the CMIP network management interface in communication with the network management system. The communication device 203 has a simple configuration and can be realized at low cost. Furthermore, the present communication device 203 has an advantage that it can easily follow a change in the definition of the network management interface such as CMIP or MO.

[0031]

According to the present invention, it is possible to provide a network management interface conversion device which enables a communication device having a CMIP network management interface to be managed by a management system having a non-CMIP network management interface.

Further, it is possible to provide a communication device capable of performing communication using a plurality of types of network management interfaces including a CMIP network management interface.

[Brief description of the drawings]

FIG. 1 is a configuration example of a communication network management network to which a network management interface conversion device according to the present invention is applied.

FIG. 2 is a functional diagram of a network management interface conversion device.

FIG. 3 is a processing flow of the network management interface conversion device.

FIG. 4 is a specific example of conversion of the network management interface conversion device.

FIG. 5 is a message flow 1 of communication of the network management interface conversion device.

FIG. 6 is a message flow 2 of communication of the network management interface conversion device.

FIG. 7 is a configuration diagram of a communication device including a function of a network management interface conversion device.

[Explanation of symbols]

101: a network management system having a non-CMIP network management interface 102: a network management interface converter according to the present invention 103: a communication device having a CMIP network management interface 201: having a CMIP network management interface Network management system 202 ・ ・ ・ Network management interface conversion function unit 203 ・ ・ ・ Communication device capable of supporting multiple types of network management interfaces 204 ・ ・ ・ Device / signal management unit 301 ・ ・ ・ Command request receiving unit 302 ・ ・ ・ Network Management interface conversion control unit 303 ・ ・ ・ CMIP-PDU editing unit 304 ・ ・ ・ CMIP response / event receiving unit 305 ・ ・ ・ Command transaction 306 ・ ・ ・ Conversion procedure definition table 307 ・ ・ ・ Transition control state transition table 308・ ・ ・ CMIP transaction 309 ・ ・ ・ Data storage for conversion control

Claims (8)

[Claims] An international standard C as a network management interface.
It is connected to a communication device having a MIP (Common Management Information Protocol) and a network management system having a non-CMIP network management interface, and enables communication between the network management interface of the network management system and the network management interface of the communication device. A network management interface conversion device, which defines a method of generating a command PDU for realizing a function equivalent to the command information in the CMIP network management interface in response to each command information sent from the network management system. Storage means for storing the specified information and information defining a method of generating response information to be returned to the network management system according to the response PDU, and the command information received from the network management system corresponding to the command information. And converting it into the command PDU based on the information stored in the storage means. PDU
Downlink communication means for transmitting to the communication device, a response PDU returned from the communication device in response to the transmission of the command PDU, the information stored in the storage means corresponding to the command information Upstream network means for converting the response information into the response information and transmitting the converted response information to the network management system. 2. The network management interface conversion device according to claim 1, wherein the command information sent from the network management system includes a function equivalent to the command information, transmission of a plurality of command PDUs, and Command information that needs to be realized by receiving a plurality of response PDUs is included. In response to receiving the command information, the uplink communication unit and the downlink communication unit correspond to the command information. Transmitting the command PDU based on the information stored by
And a network management interface converter for repeating reception of a response PDU a plurality of times. 3. The network management interface conversion device according to claim 1, wherein the command information sent from the network management system includes a function equivalent to the command information, transmission of a plurality of command PDUs, and Response PDU returned to the command PDU
And transmission of another command PDU according to the content of the command, and command information that needs to be realized by receiving a plurality of response PDUs. In response to the reception of the command information, the uplink communication means And the downstream communication unit transmits the command PDU based on the information stored in the storage unit in correspondence with the command information.
And a network management interface converter for repeating reception of a response PDU a plurality of times. 4. The network management interface conversion device according to claim 1, wherein the storage means has the same content as the report information recognizable by the network management system in correspondence with the report information sent from the communication device. The uplink communication means converts the report information sent from the communication device into report information recognizable by the network management system, based on the information. A network management interface conversion device for transmitting information to the network management system. 5. The network management interface conversion device according to claim 1, further comprising means for registering and updating information stored in said storage means based on input information. Network management interface converter. 6. A first communication unit having means for configuring the network management interface conversion device according to claim 1, and a second communication unit for communicating with a CMIP network management interface, The communication unit of the second communication unit, the communication of the second communication unit,
A communication device for converting communication into communication of a network management interface other than IP. 7. The communication device according to claim 6, further comprising means for registering and updating the information stored in the storage means constituting said network management interface conversion device based on the input information. A communication device characterized by the above-mentioned. 8. An apparatus for connecting a communication device having CMIP which is an international standard as a network management interface and a network management system having a network management interface which is not CMIP, to enable communication between the network management system and the communication device. A method for generating a command PDU for realizing a function equivalent to the command information in the CMIP network management interface in response to each command information sent from the network management system. Generating information that specifies the method of generating response information to be returned to the network management system in response to the response PDU, and command information received from the network management system corresponding to the command information. Command PD based on the information generated by
U, and a process of transmitting the converted PDU to the communication device; and a response PDU returned from the communication device in response to the transmission of the command PDU, the information generated corresponding to the command information. And converting the converted response information to the network management system on the basis of the above.