JPH0677247B2 - Manager device of network management system - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manager device of 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.

2. Description of the Related Art In order to improve the reliability and maintainability of network systems and operate the network systems efficiently, for example, the Information Processing Society of Japan Multimedia Communication and Distributed Processing Research Group 42
-11 (1989.5.19), a network management system is provided.

This type of network management system is configured by including a manager device 600 as a management device and a plurality of agent devices 700 as managed devices, as shown in FIG. 4, for example. The manager device 600 sends a management operation message indicating a management operation instruction to each of the agent devices 700 ...
0 ... Sends to the manager device 600 a management operation response message such as management information or management operation completion information according to the management operation message, and a notification message for notifying the occurrence of a failure or the change of state. It is like this.

The manager device 600 and the agent device 700
Specifically, for example, has a configuration as shown in FIG.

In FIG. 5, 601 is management application processing means, 701 is managed application processing means, and 602/702.
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 605.7.
05 is an event queue.

The general-purpose command processing means 603/703 requests the agent device 700 for management information and the like as shown in FIG. 6, for example.
A command processing library for performing various command processing such as ET command processing and SET command processing for sending management information to the agent device 700 is provided, and any command processing is selectively performed. Further, the general-purpose communication protocol processing means 604 and 704 are provided with a communication protocol processing library for performing various communication protocol processing, and selectively perform any one of the communication protocol processing.

In such a network management system, the network is managed by the following operations.

For example, when the manager device 600 requests the agent device 700 to send management information by a GET command, the management application processing means 601 causes the general-purpose command processing means 60 to start by starting the management application program.
The management operation instruction of the GET command is output to 3.

The general-purpose command processing unit 603 outputs the management service by the GET command processing in the command processing library.

The general-purpose communication protocol processing unit 604 transmits a management operation message indicating a GET command to the agent device 700 by a predetermined communication protocol process 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 is the management application processing means 6 in the manager device 600.
The management operation instruction of the GET command output from 01 is restored and output to the managed application processing means 701.

The managed application processing means 701 performs processing according to the GET command based on the management operation instruction, and outputs 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 the general-purpose communication protocol processing means 604 of the manager device 600 and the general-purpose command processing means 6 are output.
It is sent to the management application processing means 601 via 03.

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

By the way, the communication of the notification message is performed irregularly according to the occurrence of an event in each agent device 700. Therefore, the general-purpose communication protocol processing means 604 of the manager device 600 may receive the notification message during the process of transmitting the management operation message or the process of receiving the 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 the reception processing of the management operation response message and the like are completed, the notification message is read from the event queue 605 and the reception processing is performed. Then, the notification is sent to the management application processing means 601 via the general-purpose command processing means 603.

However, in the manager device 600 as described above,
If a notification message is received while the management operation message is being sent, the notification message will be temporarily displayed in the event queue 60.
Since it is stored in 5, and the receiving process is not performed immediately, there is a problem that the real-time property of the process for the notification tends to be impaired.

Further, when notification messages are simultaneously sent from a plurality of agent devices 700, the event queue 605
If is overflowed, there is a possibility that the notification message reception process itself will not be performed.

It should be noted that it is conceivable that a plurality of general-purpose logical path processing means 602 are provided to perform multitask processing and the like, thereby performing the management operation message transmission processing and the notification message reception processing in parallel. Since the general-purpose logical path processing means 602 requires a large-scale storage area or the like, it causes an increase in size of the device and an increase in manufacturing cost.

The present invention has been made in view of the above points, and an object thereof is to provide a manager device of a network management system that can perform a notification message reception process quickly and reliably without significantly increasing the size 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,
A management operation message for performing a management operation is transmitted to the agent device, and a management operation response message transmitted in response to the management operation message from the agent device and a notification message voluntarily transmitted from the agent device are received. Then, in the manager device of the network management system that manages the network system, when performing the management operation, the management operation logical path processing means is formed according to the management operation, and the management operation logical path processing means is formed. Through the management operation message transmission process and the management operation response message reception process, while receiving a notification message from the agent device, forming a notification logical path processing unit according to the notification message, A notification message is sent via this notification logical path processing means. It is characterized by having a message transmission and reception processing means for performing reception processing of the message.

Operation According to the above configuration, the message transmission / reception processing means forms the management operation logical path processing means according to the management operation when performing the management operation, and through the management operation logical path processing means, The management operation message transmission process and the management operation response message reception process are performed. 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 reception processing is performed via the notification logical path processing means.

First Embodiment FIG. 1 is a block diagram showing the configuration of a manager device 100 of a network management system according to 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 management operation command / communication protocol library, 140 is a management operation logical path control means, 150 is a management operation logical path processing means, Reference numeral 151 is a management operation command processing unit, 152 is a management operation communication protocol processing unit, 160 is a notification command / communication protocol library, 170 is a notification logical path control unit, 180 is a notification logical path processing unit, and 181 is a notification. Command processing means, 182 is a communication protocol processing means for notification, 190
Is a 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), detection of an abnormal state, etc. by starting the management application program.

Management operation command / communication protocol library 130
Stores program components for management operation command processing and communication protocol processing.

The management operation logical path control unit 140 is a command / communication protocol library for management operation based on the logical path formation / deletion instruction from the management application processing unit 110
The command operation program according to the management operation instruction and the communication protocol processing program according to the agent device to which the management operation message is sent are read out from the program components stored in the management operation unit 150, and the management operation of the management operation logical path processing unit 150 is performed. The management command processing means 151 and the management operation communication protocol processing means 152 generate a management operation logical path and delete it.

The management operation logical path processing unit 150 executes the program generated by the management operation logical path control unit 140 to transmit a management operation message and receive a management operation response message, that is, for management operation. Logical path processing is performed. Further, when a plurality of management operation logical paths are formed as shown in FIG. 2 corresponding to a plurality of agent devices or a plurality of types of management operations, the respective management operation logical path processes are executed in parallel. Then you can do it.

Meanwhile, the notification command / communication protocol library 160
Stores program components for notification command processing and communication protocol processing.

The notifying logical path control means 170 reads out the program parts stored in the notifying command / communication protocol library 160 based on the logical path formation instruction from the notifying / managing operation response switching means 190, and issues a command according to the notifying message. A notification logical path is formed and managed 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. This is deleted based on a logical path deletion instruction from the application processing means 110.

The notification logical path processing means 180 executes the program generated by the notification logical path control means 170 to perform the notification message reception processing, that is, the notification logical path processing. Similarly to the management operation logical path processing means 150, when a plurality of notification logical paths are formed as shown in FIG.
The notification logical path processing can be performed in parallel for notification messages from a plurality of agent devices.

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 path processing means 180, respectively. .

In addition, the network management system is ISDN (Integrated
Services Digital Network), the management application processing means 110, the management operation command processing means 151, and the notification command processing means 181 correspond to the processing performed in the application layer while Communication protocol processing means for operation
The processing performed by 152 and the notification communication protocol processing means 182 can be made to correspond to the processing performed by the layers below the presentation layer, but the present invention is not limited to this.

In the manager device 100 configured as described above, for example, in the case of requesting the agent device to transmit the management information by the GET command and a predetermined communication protocol,
The following operation is performed.

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

Therefore, the management operation logical path control means 140 reads out the GET command processing program component and the predetermined communication protocol processing program component corresponding to the agent device from the management operation command / communication protocol library 130, and executes GET. The command processing program and the communication protocol processing program are used for management operation command processing means 151 and the management operation communication protocol processing means 152.
To create 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 the 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 operation logical path processing means 150
The management operation instruction of the GET command is output to.

The management operation logical path processing means 150 performs management operation logical path processing of GET command processing and communication protocol processing based on the management operation instruction, and transmits a management operation message indicating a GET command to the agent device.
More specifically, for example, designation of an agent device requesting management information, generation of data in a predetermined format including information indicating the requested management information, and a network or transmission method used for communication with the agent device. It is sent as an electric signal or an optical signal after being converted into a format according to the above.

The agent device receives the management operation message,
When the management operation response message corresponding to this 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 140
The logical path search request is output as an event.

The management operation logical path control unit 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 unit 190. The notification / management operation response message switching means 190 outputs a management operation response message to the management operation logical path processing means 150 so that the management operation logical path processing indicated by the logical path information is performed. That is, the management operation logical path processing means 150
Even if a plurality of logical paths for management operation are formed in, the logical path processing for management operation corresponding to the received management operation response message is performed.

The management operation logical path processing means 150 performs management protocol logical path processing of communication protocol processing and GET command processing based on the management operation response message, and outputs the obtained management operation response to the management application processing means 110. To do.

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

The management operation logical path control unit 140, based on the logical path deletion instruction, the management operation command processing unit 15
1, and deletes the command processing program and the communication protocol processing program generated in the management operation communication protocol processing means 152.

Further, when any one of the agent devices transmits a notification message for notifying the occurrence of a failure or the change of the state, the following operation is performed regardless of the execution state of the management operation.

First, notification / management operation response message switching means 190
Upon receiving the notification message, detects that the message is a notification message, and then outputs to the notification logical path control means 170 a logical path formation instruction corresponding to the received notification message as an event.

Therefore, the notification logical path control means 170 reads the command processing program component corresponding to the notification from the notification command / communication protocol library 160, and the predetermined communication protocol processing program component corresponding to the agent device, Command processing means for notifying the command processing program and the communication protocol processing program 18
1, and generate in the communication protocol processing means 182 for notification,
Form a notification logical path. When the formation of the notification logical path is completed, the notification logical path control unit 170 outputs the logical path formation completion information as an event to the notification / management operation response message switching unit 190.

Upon receiving the logical path formation completion information, the notification / management operation response message switching means 190 outputs the received notification message to the notification logical path processing means 180. Here, when a plurality of notification logical paths are formed in the notification logical path processing means 180, a notification message is output 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 communication logical path processing for 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 to the management application processing means 110 notification message reception information indicating that the notification message has been received and information regarding the notification logical path.

The management application processing means 110, based on the notification output from the notification logical path processing means 180, for example, performs processing for a failure that occurred in the agent device,
When finished, a logical path deletion instruction is output as an event to the notification logical path control means 170.

The notification logical path control unit 170 deletes the command processing program and the communication protocol processing program generated in the notification command processing unit 181 and the notification communication protocol processing unit 182 based on this logical path deletion instruction. .

As described above, when the notification message is received, the notification logical path processing unit 18 is irrespective of the execution state of the management operation.
Since the receiving process of the notification message is performed by 0,
Highly real-time processing is reliably performed for the notification. Moreover, the management operation logical path and the notification logical path are
Since only those corresponding to the management operation instruction and the notification message are formed as necessary, it is not necessary to significantly increase the size of the storage area or the like. Further, it is possible to easily perform a plurality of management operations and notification processing in parallel.

If the notification process needs to be performed more quickly, the management operation may be interrupted to preferentially perform the notification process. On the other hand, when it is not necessary to perform a plurality of management operations and notification processes in parallel, only one management operation logical path and one notification logical path may be formed.

As described above, according to the present invention, when the management operation is performed, the management operation logical path processing means corresponding to the management operation is formed, and the management operation logical path processing means is used. While performing the management operation message transmission processing and the management operation response message reception processing, when a notification message is received from the agent device, a notification logical path processing means corresponding to the notification message is formed, and this notification is sent. The management operation logical path processing means and the notification logical path processing means are formed as necessary by providing the message transmission / reception processing means for receiving the notification message via the communication logical path processing means. Therefore, the notification message reception processing that requires real-time processing can be performed promptly without increasing the size of the device or significantly increasing the manufacturing cost. Moreover, there is an effect that it can be surely performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a manager device of a network management system according to an embodiment of the present invention.
FIG. 3 is an explanatory view showing an example of a management operation logical path processing means in which a management operation logical path is formed, and FIG. 3 is an explanatory view 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 a configuration of a network management system, FIG. 5 is a block diagram showing configurations 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. Is. 100 ... Manager device, 110 ... Management application processing means, 120 ... Message transmission / reception processing means, 130 ...
Management operation command / communication protocol library, 140
... management operation logical path control means, 150 ... management operation logical path processing means, 151 ... management operation command processing means, 152 ... management operation communication protocol processing means, 160 ...
… Notification command / communication protocol library, 170…
... notification logical path control means, 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

Claims (1)

[Claims] 1. A network system to which a plurality of agent devices are connected, which sends a management operation message for performing a management operation to the agent device, and is sent from the agent device in response to the management operation message. When the manager device of the network management system that manages the network system by receiving the management operation response message and the notification message voluntarily sent from the agent device, when performing the management operation, management according to the management operation is performed. When an operation logical path processing unit is formed and a management operation message transmission process and a management operation response message reception process are performed via this management operation logical path processing unit, but a notification message from an agent device is received In the notification message Forming a notification logical path processing means for Flip was, via a logical path processing means for the notification,
A manager device of a network management system, comprising: a message transmission / reception processing means for receiving a notification message.