JPH0468456A - Manager device for network control system - Google Patents

Abstract

PURPOSE:To speedily and surely receive an information message without enlarging scale by forming a logical path processing means for control operation corresponding to a control operation and forming a logical path processing means for information corresponding to the case of receiving the information message. CONSTITUTION:A message exchange processing means 120 is provided to form a logical path processing means 150 for control operation corresponding to a control operation when executing the control operation so as to transmit a control operation means and to receive a control operation response message, and to form a logical path processing means 180 corresponding to an information message when receiving the information message from an agent device, on the other hand, so as to receive the information message. Therefore, the logical path processing means 150 for control operation and the logical path processing means 180 for information are formed as needed. Thus, without enlarging the device or increasing manufacture cost, the information message can be speedily received without fail.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a manager device for a network management system that is provided in a network system to which a plurality of agent devices are connected and manages the network system.

In order to improve reliability and maintainability, etc., and operate network systems efficiently, conventional technology network systems have been developed, for example, by the Information Processing Society of Japan Multimedia Communications and Distributed Processing Study Group 4.
2-11 (1989, 5, 19) is provided.

This type of network management system includes, for example, a manager device 600 as a management device, as shown in FIG.
Agent device 700, which is a plurality of managed devices...
It is configured by providing.

The manager device 600 transmits a management operation message indicating a management operation instruction to each agent device 700..., while each agent device 700...
The manager device 600 is configured to send management operation response messages such as management information and management operation completion information in response to the management operation messages, as well as notification messages for notifying occurrences of failures, changes in status, etc. There is.

The manager device 600 and the agent device 7
00 specifically has a configuration as shown in FIG. 5, for example.

In FIG. 5, 601 is a management application processing means, 701 is a managed application processing means, and 602 is a managed application processing means.
- 702 is a general-purpose logical path processing means, 603 and 703 are general-purpose command processing means, 604 and 704 are general-purpose communication protocol processing means, and 605 and 705 are event queues.

The general-purpose command processing means 603 and 703, for example, as shown in FIG.
A command processing library is provided that performs various command processes such as SET command processing for sending management information to 0, and any one of the command processes can be selectively performed.

Furthermore, the general-purpose communication protocol processing means 604 and 704
A communication protocol processing library for processing various communication protocols is provided, and one of the communication protocol processing is selectively performed.

In such a network management system, network management is performed through the following operations.

For example, when the manager device 600 requests the agent device 700 to send management information using a GET command, the management application processing means 601 outputs a management operation instruction of the GET command to the general-purpose command processing means 603 by starting the management application program. do.

The general-purpose command processing means 603 outputs a management service by processing a GET command in a command processing library.

The general-purpose communication protocol processing means 604 transmits a management operation message indicating a GET command to the agent device 700 by processing a predetermined communication protocol in the communication protocol processing library based on the management service.

In the agent device 700, the general-purpose communication protocol processing means 704 extracts the management service from the received management operation message. The general-purpose command processing means 703 restores the management operation instruction of the GET command output from the management application processing means 601 in the manager device 600, and processes the managed application processing means 70.
Output to 1.

The managed application processing means 701 performs processing according to the GET command based on the management operation instruction,
Output the requested management information as a management operation response. This management operation response is output as a management operation response message via the general-purpose command processing means 703 and the general-purpose communication protocol processing means 704, and is sent to the manager device 600.
The command is sent to the management application processing means 601 via the general-purpose JF-protocol processing means 604 and the general-purpose command processing means 603.

Furthermore, when an event such as a failure or a change in status occurs in the agent device 700, the managed application processing means 701 outputs a notification. This notification, like the management operation response described above, is sent to the management application processing means 601 of the manager device 600, and the management application processing means 601 processes the notification.

By the way, the above notification message is sent irregularly depending on the occurrence of an event in each agent device 700.... Therefore, the manager device 60
The general purpose communication protocol processing means 604 of No. 0 may receive a notification message during the process of transmitting a management operation message or during the process of receiving a management operation response message.

In this case, the general-purpose communication protocol processing means 604 temporarily stores the received notification message in the event queue 605, and after completing the reception processing of the management operation response message, etc., reads the notification message from the event queue 605 and performs the reception processing. general-purpose command' processing means 603
The notification is sent to the management application processing means 601 via.

Problems to be Solved by the Invention However, in the manager device 600 as described above, when a notification message is received during the transmission process of a management operation message, the notification message is temporarily stored in the event queue 605 and the reception process is immediately performed. Because it doesn't happen,
This has the problem that real-time processing of notifications tends to be impaired.

In addition, when notification messages are sent from multiple agent devices 700 at the same time, the event queue 6
If 05 overflows, there is a possibility that the notification message reception process itself will not be performed.

It is also conceivable that a plurality of general-purpose logical path processing means 602 may be provided to perform multi-task processing, thereby allowing management operation message transmission processing and notification message reception processing to be performed in parallel. Since the general-purpose logical path processing means 602 requires a large-scale memory and the like, this results in an increase in the size of the device and manufacturing cost.

In view of the above points, it is an object of the present invention to provide a manager device for a network management system that can quickly and reliably process the reception of notification messages without significantly increasing the scale of the device.

Means for Solving the Problems In order to achieve the above object, the present invention is provided in a network system to which a plurality of agent devices are connected,
Sending a management operation message for performing a management operation to the agent device, and also transmitting a management operation response message sent from the agent device in response to the management operation message, and a notification message voluntarily sent from the agent device. In the manager device of the network management system that receives the received information and manages the network system, when a management operation is performed, a logical path processing means for management operation is formed according to the management operation, and this logical path processing means for management operation is performed. transmits management operation messages and receives management operation response messages, and when a notification message is received from the agent device, forms a logical path processing means for notification corresponding to the notification message. The present invention is characterized in that it includes message transmission/reception processing means for receiving notification messages via the notification logical path processing means.

Operation According to the above structure, when performing a management operation, the message transmission/reception processing means forms a logical path processing means for management operation corresponding to the management operation, and executes the management operation via the logical path processing means for management operation. Performs processing for sending operation messages and processing for receiving management operation response messages. When a notification message is received from the agent device, a notification logical path processing means corresponding to the notification message is formed, and the notification message is received through the notification logical path processing means.

Embodiment FIG. 1 is a block diagram showing the configuration of a manager device 100 of a network management system in an embodiment of the present invention.

In FIG. 1, 110 is a management application processing means, 120 is a message transmission/reception processing means, 130 is a command/communication protocol library for management operations, 140 is a logical path control means for management operations, 150 is a logical path processing means for management operations, 151 is a command processing means for management operation;
152 is a communication protocol processing means for management operation, 160 is a notification command/communication protocol library, 170 is a notification logical path control means, 180 is a notification logical path processing means, 181 is a notification command processing means, 182 is for notification Communication protocol processing means 190 is notification/management operation response message switching means.

The management application processing means 110 performs management such as grasping and controlling the state of an agent device (not shown) and detecting an abnormal state by starting a management application program.

Management operation command/communication protocol library IJ 1
30 stores program components for management operation command processing and communication protocol processing.

The management operation logical path control means 140 reads the program components stored in the management operation command/communication protocol library 130 based on the logical path creation/deletion instructions from the management application processing means 110, and reads out the program components stored in the management operation command/communication protocol library 130. The command processing program for the management operation and the communication protocol processing program corresponding to the agent device to which the management operation message is sent are executed by the command processing means for management operation 151 of the logical path processing means for management operation 150 and the communication protocol processing means for management operation 15, respectively.
2, a gA manager bus for management operations is created and deleted.

The management operation logical path processing means 150 executes the program generated by the management operation logical path control means 140 to perform management operation message transmission processing and management operation response message reception processing, that is, management operation logical path processing means 150. It is designed to perform logical path processing. In addition, if multiple logical paths for management operations are formed in response to multiple agent devices or multiple types of management operations, as shown in Figure 2, each logical path for management operations can be processed in parallel. And now you can do it.

On the other hand, notification command/communication protocol library 16
0 stores program components for notification command processing and communication protocol processing.

The notification logical path control means 170 reads the program parts stored in the notification command/communication protocol library 160 based on the logical path formation instruction from the notification/management operation response switching means 190, and executes the command according to the notification message. A notification logical path is formed by generating a processing program and a communication protocol processing program in the notification command processing means 181 and the notification communication protocol processing means 182 of the notification logical path processing means 180, respectively. The logical path is deleted based on a logical path deletion instruction from the application processing means 110.

The notification logical bus processing means 180 executes the program generated by the notification logical path control means 170 to perform notification message reception processing, that is, notification logical path processing. In addition, similar to the management operation logical path processing means 150, when multiple notification logical paths are formed as shown in FIG. 3, notification messages from multiple agent devices are processed in parallel. It is now possible to perform logical path processing for notification.

The notification/management operation response switching means 190 switches the received management operation response message and notification message and outputs them to the management operation logical path processing means 150 or the notification logical bus processing means 180, respectively. .

The network management system is ISDN (Tnte).
rated 5 services Digital N
When applied to a management application processing means 110, management operation command processing means 151, and notification command processing means 181, the processing performed in the application layer corresponds to the processing performed in the application layer. Communication protocol processing means 152
, and the processing performed by the notification communication protocol processing means 182 can be made to correspond to the processing performed in a layer below the presentation layer, but is not limited thereto.

When the manager device 100 configured as described above requests the agent device to send management information using a GET command and a predetermined communication protocol, the following operations are performed.

First, the management application processing means 110 outputs a logical path formation instruction for the GET command to the management operation logical path control means 140 by starting the management application program.

Therefore, the logical path control means 140 for management operation uses the command/communication protocol library 130 for management operation to
A command processing means 151 for managing the C, ET command processing program, and communication protocol processing program by reading program components for ET command processing and program components for predetermined communication protocol processing according to the agent device; The communication protocol for operation is generated in the processing means 152 to form a logical path for management operation. When the formation of the management operation logical path is completed, the management operation logical path control means 140 outputs logical path formation completion information to the management application processing means 110.

When the management application processing means 110 receives the logical path formation completion information, the management application processing means 110 executes the logical path processing means 1 for management operation.
A management operation instruction for the GET command is output to 50.

The management operation logical path processing means 150 performs GET command processing and management operation logical bus processing of communication protocol processing based on the management operation instruction, and transmits a management operation message indicating the GET command to the agent device. More specifically, for example, it specifies the agent device that requests management information, generates data in a predetermined format that includes information indicating the requested management information, and also specifies the network and transmission method used for communication with the agent device. etc., and then sends it out as an electrical or optical signal.

The agent device receives the above management operation message,
When a corresponding management operation response message is transmitted, the notification/management operation response message switching means 190 receives this, and after detecting that the message is a management operation response message, the management operation logical path control means 1
A logical bus search request is output to 40 as an event.

The management operation logical path control means 140 returns, as an event, logical path information indicating the management operation logical path corresponding to the management operation response message received by the notification/management operation response message switching means 190. The notification/management operation response message switching means 190 performs the management operation logical path processing indicated by the logical bus information.
A management operation response message is output to the management operation logical path processing means 150. That is, even if a plurality of management operation logical paths are formed in the management operation logical path processing means 150, the management operation logical path processing corresponding to the received management operation response message is performed. .

The management operation logical path processing means 150 performs communication protocol processing and GE processing based on the management operation response message.
Performs management operation logical bus processing for T command processing, and sends the obtained management operation response to the management application processing means 11.
Output to 0.

Based on this management operation response, the management application processing means 110 performs processing such as displaying the status of the agent device, for example, and when the processing is completed, outputs a logical path deletion instruction to the management operation logical path control means 140 as an event. .

The management operation logical path control means 140 executes the management operation command processing means 1 based on this logical bus deletion instruction.
51, and management operation communication protocol processing means 152
Delete the command processing program and communication protocol processing program that were generated.

Further, when a notification message notifying an order for a failure, a change in status, etc. is sent from any of the agent devices, the following operation is performed regardless of the execution status of the management operation.

First, notification/management operation response message switching means 19
0 receives a notification message, detects that the message is a notification message, and then outputs a logical bus formation instruction according to the received notification message to the notification logical bus control means 170 as an event.

Therefore, the notification logical bus control means 170 reads program components for command processing according to the notification from the connection command/communication protocol library 160 and program components for predetermined communication protocol processing according to the agent device. , a command processing program, and a communication protocol processing program, a notification command processing means 181 and a notification communication protocol processing means 182.
to form a notification logical path. When the formation of the notification logical path is completed, the notification logical path control means 170 outputs logical path formation completion information to the notification/management operation response message switching means 190 as an event.

The notification/management operation response message switching means 190 includes:
Upon receiving the logical path formation completion information, it outputs the received notification message to the notification logical path processing means 180. Here, if a plurality of notification logical paths are formed in the notification logical path processing means 180, a notification message is outputted so that the notification logical path processing indicated by the logical path formation completion information is performed. .

The notification logical path processing means 180 performs communication protocol processing and notification logical path processing of command processing based on the notification message, and outputs the obtained notification to the management application processing means 110. Further, the notification logical path control means 170 outputs notification message reception information indicating that the notification message has been received and information regarding the notification logical path to the management application processing means 110.

Based on the notification output from the notification logical path processing means 180, the management application processing means 110 performs processing, for example, for a failure that occurs in the agent device, and upon completion, instructs the notification logical path control means 170 to delete the logical path. Output as an event.

Based on this logical path deletion instruction, the notification logical path control means 170 deletes the command processing program and communication protocol processing program generated by the notification command processing means 181 and the notification communication protocol processing means 182. .

In this way, when a notification message is received, regardless of the execution status of the management operation, the notification logical path processing means 1
Since the notification message reception process is performed by 80, the notification is reliably processed in real time. Moreover, only the logical paths for management operations and logical paths for notifications that correspond to management operation instructions and notification messages are formed as needed, so there is no need to significantly increase the size of storage area, etc. . Furthermore, it is also possible to easily perform multiple management operations and notification processes in parallel.

Note that if the notification process needs to be performed more quickly, the management operation may be interrupted and the notification process may be performed preferentially. On the other hand, if there is no need to perform multiple management operations and notification processes in parallel, only one management operation logical path and one notification logical path may be formed.

As described in detail, according to the present invention, when performing a management operation, a logical path processing means for management operation is formed in accordance with the management operation, and a logical path processing means for management operation is processed through the logical path processing means for management operation. ,
While transmitting a management operation message and receiving a management operation response message, when a notification message is received from an agent device, a notification logical path processing means corresponding to the notification message is formed, and a notification logical path processing means is formed according to the notification message. By providing the message transmission/reception processing means for receiving notification messages via the logical path processing means, the logical path processing means for management operation and the logical path processing means for notification can be formed as necessary. This has the effect that the receiving process of notification messages, which requires real-time performance, can be performed quickly and reliably without causing an increase in the size of the device or a significant increase in manufacturing costs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a manager device of a network management system in an embodiment of the present invention, and FIG.
FIG. 3 is an explanatory diagram showing an example of a management operation logical path processing means in which a management operation logical path is formed, FIG. 3 is an explanatory diagram showing an example of a notification logical path processing means in which a notification logical path is formed, FIG. 4 is a block diagram showing the configuration of a network management system, FIG. 5 is a block diagram showing the configuration of a conventional manager device and an agent device, and FIG. 6 is an explanatory diagram showing an example of a conventional general-purpose logical path processing means. It is. 100... Manager device, 110... Management application processing means, 120... Message transmission/reception processing means, 130... Command/communication protocol library for management operations, 140... Logical path control means for management operations, 150... Logical path processing means for management operation, 15
DESCRIPTION OF SYMBOLS 1... Command processing means for management operation, 152... Communication protocol processing means for management operation, 160... Command/communication protocol library for notification, 170... Logical path control means for notification, 180... Notification logical path processing means, 181... Notification command processing means, 182
...Notification communication protocol processing means, 190...Notification/management operation response message switching means FIG. 2 13! Aa νke/! >Processing) Step t71') 1 Back Ll Rental Figure 4

Claims (1)

[Claims] (1) Provided in a network system to which a plurality of agent devices are connected, which transmits management operation messages for performing management operations to the agent devices, and management operations sent from the agent devices in response to the management operation messages. When a manager device of a network management system that manages a network system receives a response message and a notification message sent spontaneously from an agent device and performs a management operation, it receives a response message and a notification message sent spontaneously from an agent device. A logical path processing means is formed, and through this management operation logical path processing means, transmission processing of management operation messages and reception processing of management operation response messages are performed, and when a notification message is received from the agent device, , forming a notification logical path processing means according to the notification message, and via this notification logical path processing means,
1. A manager device for a network management system, comprising a message transmission/reception processing means for receiving a notification message.