JP2745833B2 - Network management method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network management system for managing a network, and more particularly to a network management system for managing a network including a plurality of different types of devices and a line connecting the plurality of devices.

[0002]

2. Description of the Related Art An example of a conventional network management system will be described with reference to FIG. 2. Description of the Related Art Conventionally, in a network management system that connects a plurality of different types of devices, as shown in FIG. 2, device status monitoring units 23-1 and 23 that monitor the status of each device and notify the status of each device. -2
And a state notification selection unit 22- which selects between notifications generated from each of the device state monitoring units 23-1 and 23-2.
The integrated network management unit 21 controls the status notification selection units 22-1 and 22-2 to select and acquire a notification. 24-1, 24-2,
Reference numeral 24-3 denotes an A device, and 25-1, 25-2, and 25-
Reference numeral 3 denotes a B apparatus.

[0003]

The problem to be solved is that in the above-described conventional network management system, the integrated network management unit individually controls the status notification selection units for different types of devices. The point is that the network management unit must acquire the status notification using the status notification selection method unique to each type of device. Further, in the conventional network management method, the state of the other device (the B device 25 in FIG. 2) changes due to a failure or the like occurring in one device (the A device 24 in FIG. 2), and a notification is issued. When this occurs, there is a problem that it is necessary to determine the causal relationship of the cause by the integrated network management unit 21 and to know the root cause.

[0004]

SUMMARY OF THE INVENTION The present invention provides a network management system for managing a network composed of a plurality of different types of devices and a line connecting the plurality of devices. A plurality of device status monitoring units for notifying the status, a plurality of status notification selection units for selecting and notifying status notifications generated for each of the plurality of device status monitoring units, and a plurality of status notification selection units. as well as to notification sift integrates notification, it is given in advance
Information notification criteria and status notification selection according to information
Those comprising an integrated selecting unit that controls the criteria selecting section notification selection.

[0005]

According to the present invention, the integrated notification selecting unit controls the status notification without using the device-specific status notification selecting method in the integrated network management unit, and the causal relationship of the status notification across different types of devices. To know the root cause.

[0006]

FIG. 1 is a block diagram showing an embodiment of a network management system according to the present invention. In FIG. 1, reference numerals 4-1 and 4-2 denote device status monitoring units 3-1 and 3-2 for monitoring the status of each device of the same type and notifying the status.
Is a status notification selection unit for selecting and notifying a notification of a status occurring for each of the device status monitoring units 4-1 and 4-2, and 2 is a notification from the status notification selection units 3-1 and 3-2. An integrated selection section for integrating and selecting and notifying, an integrated network management section, 5
-1, 5-2, 5-3 are modems;
3 is a line switching device.

Next, the operation of the embodiment shown in FIG. 1 will be described. First, the integrated network management unit 1 determines the modems 5-1 and 5-2,
5-3, a line switching device 6-1, 6-2, 6-3, and a network composed of lines connecting these devices. The status of the modems 5-1, 5-2, and 5-3 is monitored by the device status monitoring unit 4-1. If there is any change in the status, for example, a communication failure or a power interruption, the status of the device status monitoring unit 4 is determined. -1 generates a status notification. The status notification selection unit 3-1 selects a notification generated by the device status monitoring unit 4-1 based on preset information, and notifies only a necessary notification to a higher-level system.

[0008] The status notification selecting unit 3-2 and the device status monitoring unit 4-2 are similarly connected to the line switches 6-1 and 6-2.
The state of 6-3 is notified. Next, the integrated notification selection unit 2 has a function of further selecting the notifications sent from the two status notification selection units 3-1 and 3-2 and sending the selected notifications to the integrated network management unit 1. At the same time, the integrated notification selecting unit 2 can control its own notification selection criterion and the notification selection criterion of the status notification selecting units 3-1 and 3-2 according to the information provided from the integrated network management unit 1. it can.

Assume that the integrated network management unit 1 has performed control to the integrated notification selection unit 2 so as not to send a notification of power-off of the apparatus. The notification of the power cutoff of the device is sent to the modems 5-1 to 5-3 and the line switching devices 6-1 to 6
-3, the integrated notification selecting unit 2 controls both of the two status notification selecting units 3-1 and 3-2 so as not to send a notification about power-off. On the other hand, a case is considered in which control is performed from the integrated network management unit 1 to the integrated notification selection unit 2 so as not to send a notification of the deterioration of the line quality. In this case, since the notification of the deterioration of the line quality is a status notification generated only from the modems 5-1 to 5-3, the integrated notification selection unit 2 controls only the status notification selection unit 3-1 to Avoid sending notifications about line quality degradation. In this way, the integrated network management unit 1 can control the criteria for selecting a notification without being conscious of whether the notification is unique to each device.

Next, consider a case where the line switching device 6-1 and the modem 5-1 are connected by a line. Assuming that the power of the line switching device 6-1 has been cut off, a notification of this power cutoff is sent to the device status monitoring unit 4-2, the status notification selection unit 3-
2. It is sent to the integrated network management unit 1 via the integrated notification selection unit 2. At this time, if the signal of the modem 5-1 is cut off as a result of the cutoff of the power of the line switching device 6-1, the notification of the signal cutoff is integrated via the device status monitoring unit 4-1 and the status notification selection unit 3-1. It is sent to the notification selection unit 2. The integrated notification selection unit 2 judges the causal relationship with the previous notification of the power cutoff of the line switching device 6-1 and sends the notification of the signal cutoff of the modem 5-1 to the integrated network. It is not sent to the management unit 1. This allows the integrated network management unit 1 to know only the root cause.

[0011]

As described above, according to the network management method of the present invention, the integrated notification selecting unit can control the status notification without using the device-specific status notification selecting method in the integrated network management unit. effective. In addition, there is an effect that the root cause can be known from the causal relationship of the status notification across different types of devices.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a network management system according to the present invention.

FIG. 2 is a block diagram showing an example of a conventional network management system that does not use the present invention.

[Explanation of symbols]

 1 Integrated Network Management Unit 2 Integrated Notification Selection Unit 3-1 and 3-2 Status Notification Selection Unit 4-1 and 4-2 Device Status Monitoring Unit 5-1 to 5-3 Modem 6-1 to 6-3 Line Switching Device

Claims (1)

(57) [Claims] 1. A network management system for managing a network composed of a plurality of different types of devices and a line connecting the plurality of devices, wherein a plurality of devices of the same type monitor a status and notify the status. a device state monitoring unit, and sift by integrating a plurality of status notification selecting section for notifying to sift through notification condition occurring for each of the plurality of device status monitoring unit, the notification from the plurality of status notification selector together with the notification, the information was given in advance
Criterion of the own notification selection and the status notification selection according to
Network management system characterized in that it comprises an integrated selecting unit that controls the criteria selecting section notification selection.