JP2536450B2 - Monitoring method by polling - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring system for monitoring a plurality of monitored devices by polling by a monitoring device.

[0002]

2. Description of the Related Art In this type of monitoring system, one monitoring device normally polls a plurality of monitored devices in order at regular intervals to collect information, but various improved systems have been proposed. There is.

As an example, the monitoring device performs a step of re-polling the monitored device in which the alarm has occurred at least once while the normal polling goes around all the monitored devices. A method is known in which the polling frequency is increased for the monitored device that is generating an alarm (Japanese Patent Laid-Open No. 1-15181).
47).

As another example, there are provided a plurality of high-speed multiplex / distribution devices, a relay line for communication between the high-speed multiplex / distribution devices, and a network management device of a network composed of these, and the network management In a failure detection / diagnosis system of a communication network that notifies failure detection information of the high-speed multiplex / distribution apparatus by polling from the apparatus to the high-speed multiplex / distribution apparatus, it is important to define each of the plurality of high-speed multiplex / distribution apparatus. A method is known in which the polling frequency is variable according to the degree (Japanese Patent Application Laid-Open No. 63-260329).

[0005]

However, in any of the systems, the more alarms that are collected, the larger the amount of information, and the longer the collection time. For example, when an instantaneous alarm frequently occurs, it seems that the monitored device repeatedly generates / recovers the alarm in the monitored device, and as a result, the polling time for one round in the monitoring device becomes long.

In view of such problems, an object of the present invention is to skip polling of a monitored device when alarms are repeatedly generated / recovered in a specific monitored device. Therefore, it is to provide a monitoring method capable of preventing the polling time for one cycle from becoming long.

[0007]

According to the present invention, in a monitoring system in which a monitoring device monitors a plurality of monitored devices by polling, the monitoring device polls each of the monitored devices for occurrence / recovery of an alarm. When the number of alarm occurrences / recoveries in each of the monitored devices exceeds a predetermined value within a predetermined time, the alarm collecting means polls the monitored devices. And an analyzing means for outputting a command signal so as to skip.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. In FIG. 1, the monitoring device 10 is
By polling a plurality of monitored devices 11-1 to 11-n in order, monitoring information is collected from each monitored device and monitored.

In FIG. 2, a monitoring device 10 is connected to each of the monitored devices 11-1 to 11-n, and an alarm collecting unit 21 for sequentially monitoring the occurrence / recovery of alarms in each by polling, and a certain monitored device. When the number of times of alarm generation / recovery in the device exceeds a predetermined value within a predetermined time, an analysis part is provided for outputting a command signal to the alarm collection part 21 so as to skip polling of the monitored device. ing.

The analysis unit includes monitored devices 11-1 to 11-n.
Alarm counters 22-1 corresponding to each of the
22-n, an alarm analysis unit 23 that counts up the corresponding alarm counter each time the occurrence / recovery of the alarm changes in response to the monitoring information about the alarm from the alarm collection unit 21, and the predetermined time. It is composed of a fixed-cycle timer 24 for measuring time. Each alarm counter receives a signal indicating a change in the occurrence / recovery of an alarm in the corresponding monitored device from the alarm analysis unit 23, and when the number of receptions of this signal exceeds the predetermined value within the predetermined time, A command signal for instructing the alarm collection unit 21 to skip polling for the corresponding monitored device is output.

With the above configuration, the alarm collecting unit 21 polls the corresponding monitored device if the count value of the alarm counters 22-1 to 22-n is smaller than the predetermined value. On the other hand, the alarm analysis unit 23 increments the corresponding alarm counter each time the occurrence / recovery of an alarm in each monitored device changes. Each alarm counter outputs a count-up signal as a command signal when the change in the occurrence / recovery of an alarm exceeds a predetermined value within a predetermined time set by the fixed-cycle timer 24, and the alarm collection in response to this is output. Part 21
Skip polling for the corresponding monitored device.

[0012]

As described above, according to the present invention, even if the monitoring information increases due to the frequent occurrence of alarms in one monitored device, the polling for the monitoring information is skipped.
It is possible to prevent the polling time from increasing.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a monitoring system according to the present invention.

FIG. 2 is a block diagram of the monitoring device shown in FIG.

[Explanation of symbols]

 10 Monitoring Device 11-1 to 11-n Monitored Device 21 Alarm Collection Unit 22-1 to 22-n Alarm Counter 23 Alarm Analysis Unit 24 Fixed Period Timer

Claims (2)

(57) [Claims] 1. A monitoring system for monitoring a plurality of monitored devices by polling by a monitoring device, wherein the monitoring device includes an alarm collecting means for sequentially monitoring the occurrence / recovery of an alarm for each of the monitored devices by polling. ,
Analysis for outputting a command signal to skip the polling of the monitored device when the number of alarms generated / recovered in each monitored device exceeds a predetermined value within a predetermined time And a monitoring method by polling, which comprises: 2. The monitoring method according to claim 1, wherein the analysis unit is connected to a plurality of counters corresponding to the plurality of monitored devices and the alarm collecting unit, and the monitoring unit includes a plurality of counters. The counter includes an alarm analysis unit that counts up the corresponding counter each time the occurrence / recovery of an alarm changes, and a fixed-cycle timer that counts the predetermined time, and each counter includes the predetermined time. A monitoring system by polling, wherein the command signal is output to the alarm collecting means when the predetermined value is counted therein.