JP3424738B2 - Alarm state management method and system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm state management method and system capable of timely performing alarm state matching for measuring the matching of device states mainly between a switch and a network management system (hereinafter referred to as NMS). .

[0002]

2. Description of the Related Art Conventionally, in this type of alarm state management system, an NMS performs multi-functional management / control on an exchange. For example, the control includes an alarm management data request. The alarm management data manages a fault condition (due to a fault alarm) that is currently occurring in the exchange, and is created based on an alarm notification obtained when a fault occurs as a result of monitoring the state of its own device in the exchange.

The fault states include normal, fault, and fault recovery after the fault (substantially the same as normal, but they are distinguished in the alarm management data). The maintenance person understands (Acknowledg
e) There are 6 types of whether or not to do.

FIG. 4 is an alarm management data table exemplifying alarm management data created by a switch of the alarm status management system and managed by the NMS. This alarm management data table is written by NMS.
dge) Since the device status of the exchange is classified into three according to the presence or absence of turning on, as described above, there are 6 types of alarm management data (that is, the alarm status is normal when the device status is normal when there is no acknowledge input). Status of occurrence of an alarm due to a failure in the device status, failure of the status of the equipment, status of an alarm occurring when a failure recovery alarm is received after failure of the status of the equipment, and status of normal status of the equipment when there is an acknowledge input. There are an alarm non-occurrence state, an alarm occurring state due to a device state fault, and an alarm non-occurrence state upon receiving a fault recovery alarm after a device state fault).

In such an alarm state management system, the mechanism for collecting alarm management data is
When the device status monitoring unit on the exchange side monitors the status of its own device, a failure occurrence notification and a failure recovery notification are sent to the alarm management unit when a failure occurs or the failure is recovered, and the alarm management unit sends the alarm notification to the alarm control unit. The alarm control unit creates alarm management data based on the alarm notification, sends the alarm notification and the alarm management data to the NMS, and the NMS updates the alarm management data in response to the alarm notification. It is supposed to manage the state.

Incidentally, as a known technique related to such an alarm state management system and alarm notification and alarm management data, for example, Japanese Patent Laid-Open No. 5-151116 is available.
No. 9-97202, a database matching method disclosed in Japanese Patent Laid-Open No. 9-97202, and Japanese Patent Publication No. 2591483 (Japanese Patent Laid-Open No. 8-6820).
State management system and the like disclosed in Japanese Patent No.

[0007]

In the case of the above-mentioned alarm state management system, an alarm notification (fault recovery alarm) when a fault is recovered after a fault occurs as a result of monitoring the state of the own device by the exchange is a communication fault or an alarm leak. If the NMS is not notified for this reason, the NMS side treats the switch as a failure even if the device status of the switch is not a failure, or if the switch fails and the NMS cannot be notified, the switch and the NMS However, there is a problem that the device states do not match each other.

Such a discrepancy in the device states between the exchange and the NMS is caused by the technique disclosed in the database matching method disclosed in Japanese Patent Laid-Open No. 9-97202, for example.
That is, it is possible to solve the problem by applying the database matching for comparing and matching the contents of the database of the plurality of local stations with the contents of the database of the center station that controls each local station. Since it is carried out at the time of restoration from the above, there is a problem that it cannot respond in a timely manner.

The present invention has been made to solve the above problems, and its technical problem is to provide a switching system and an NMS.
It is an object of the present invention to provide an alarm state management method and system capable of timely performing alarm state matching for measuring the coincidence of device states between the two.

[0010]

According to the present invention, an NMS
In response to an alarm management data request from the switch side, the switch side sends to the NMS side alarm notification obtained when a failure occurs as a result of monitoring its own device status or when the failure is recovered, and alarm management data created based on the alarm notification. In the alarm state management method in which the NMS side manages the device state of the exchange by updating the alarm management data according to the alarm notification, the exchange side has a fault of its own device separately from the acquisition of the alarm notice. An alarm state that performs alarm state matching processing in which the device state transition information indicating occurrence or failure recovery is acquired and compared and matched with the alarm management data to match and update the alarm management data with all the device state transition information. Management method is obtained.

In this alarm state management method, the switch side issues an alarm when it detects a mismatch between the alarm management data regarding the own device read from the NMS side in response to the alarm management data request and the device state indicated by the device state information. It is preferable to perform the state matching process.

On the other hand, according to the present invention, the alarm management data is obtained based on the alarm notification obtained at the time of the occurrence of a failure or the recovery of the failure as a result of monitoring the status of the own apparatus on the exchange side in response to the alarm management data request from the NMS side. The alarm management data is created based on the alarm management data creation process and the alarm notification on the exchange side separately from the device status transition information indicating occurrence or failure recovery of the own device. Alternatively, an alarm state matching process for updating the alarm management data by matching and updating the alarm management data with all the device state transition information by comparing and matching with the alarm management data about the own device read from the NMS side in response to the alarm management data request The alarm management data matching process to be performed and the alarm management data that has undergone alarm status matching processing on the exchange side Alarm status management method and a alarm management data sending step of sending to the NMS side is obtained.

In this alarm state management method, in the alarm management data matching process, a discrepancy between the alarm management data regarding the own device read from the NMS side in response to the alarm management data request and the device state indicated by the device state information is detected. In some cases, it is preferable to perform the alarm state matching process.

On the other hand, according to the present invention, a device status monitoring unit for monitoring the status of the own device and notifying a failure occurrence at the time of failure occurrence or failure recovery, an alarm management unit for issuing an alarm notification according to the failure occurrence notification, and A switch having an alarm control unit for sending alarm notification data and the alarm management data after creating alarm management data based on the alarm notification according to an input alarm management data request, and sending the alarm management data request In addition, in the alarm state management system including the NMS that manages the device state of the exchange by updating the alarm management data based on the alarm notification sent from the alarm control unit, the exchange is separate from the failure occurrence notification. To obtain device status transition information indicating failure occurrence or failure recovery of the local device from the device status monitoring unit The device status monitoring unit notifies the device management unit of the device status transition information including the device status transition information, and the alarm control unit is created based on the device status transition information and the alarm notification. Alarm management data or NM upon request of alarm management data
An alarm state management system is provided which performs alarm state matching processing in which the alarm management data read from the S side is compared and matched to match the alarm management data with all the device status transition information and updated. .

Further, according to the present invention, in the above-mentioned alarm state management system, the alarm control unit reads the alarm management data regarding the own device read from the NMS in response to the alarm management data request and the device state information acquired from the device management unit. An alarm state management system is provided which performs an alarm state matching process when a mismatch with the device state indicated by is detected.

Further, according to the present invention, in any one of the above-mentioned alarm state management systems, the alarm control unit sends a device state information request to the device management unit in response to the alarm management data request, and the device management unit receives the device. An alarm state management system for transmitting device state transition information to an alarm control unit in response to a state information request can be obtained.

In addition, according to the present invention, in the above-mentioned alarm state management system, the device state monitoring unit notifies the occurrence of a failure and the device state transition information, the alarm management unit issues an alarm notification, and the device management unit performs the device notification. An alarm management program for sending operation of status transition information, alarm status matching processing in response to an alarm management data request from an alarm control unit, sending of a device status information request, and alarm notification and alarm management data An alarm state management system provided with a program storing means storing

In this alarm state management system,
The alarm management program sends a device status information request by the alarm control unit in response to an alarm management data request from the NMS side, device status transition information by the device management unit, an alarm status matching process by the alarm control unit, and an alarm control unit. It is preferable that the alarm notification and the alarm management data are transmitted in this order.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An alarm state management method and system according to the present invention will be described in detail below with reference to the accompanying drawings.

First, the outline of the alarm state management method of the present invention will be briefly described. This alarm status management method is
In response to an alarm management data request from the NMS side, the exchange side sends to the NMS side the alarm notification obtained when a failure occurs as a result of monitoring the status of its own device or when the failure is recovered and the alarm management data created based on the alarm notification,
On the NMS side, when managing the device status of the exchange by updating and managing the alarm management data according to the alarm notification,
On the exchange side, in addition to the acquisition of the alarm notification, the device status transition information indicating failure occurrence or failure recovery of the own device is acquired and compared / matched with the alarm management data, so that the alarm management data is transferred to all device status transition information. The alarm state matching process is performed to match and update. However, the exchange side performs an alarm state matching process when it detects a discrepancy between the alarm management data regarding the own device read from the NMS side in response to the alarm management data request and the device state indicated by the device state information. .

In other words, this alarm state management method is based on the alarm notification obtained at the time of failure occurrence or failure recovery as a result of monitoring the own device status on the exchange side in response to the alarm management data request from the NMS side. Alarm management data creation process that creates alarm management data, and the acquisition of alarm notifications on the exchange side, separately from the alarm status created by acquiring device status transition information indicating failure occurrence or failure recovery of the local device and creating alarms based on the alarm notifications An alarm state matching process for updating and updating the alarm management data in conformity with all device state transition information by comparing and matching the management data or the alarm management data regarding the own device read from the NMS side in response to a request for management data or alarm management data. The alarm management data matching process to be performed and the alarm status matching processing performed by the exchange side. And a alarm management data sending step of sending the management data to the NMS side. Further, in the alarm management data matching process here, when a mismatch between the alarm management data regarding the own device read from the NMS side in response to the alarm management data request and the device status indicated by the device status information is detected, the alarm status matching is performed. Perform processing.

As a result, the exchange side matches the alarm management data with the device state transition information as much as possible according to the device state of its own device, and is managed by the NMS side when the information exchange with the NMS side becomes possible. Since the alarm management data relating to the own device is read and updated after the alarm condition matching process is performed, the alarm condition matching for measuring the device condition matching between the exchange and the NMS can be performed in a timely manner.

FIG. 1 is a functional block diagram showing the basic configuration of an alarm state management system according to an embodiment to which this alarm state management method is applied.

This alarm status management system, like the conventional apparatus, monitors the status of its own apparatus and issues a failure occurrence notification when a failure occurs or recovers from a failure, and issues an alarm notification according to the failure occurrence notification. An exchange 1 having an alarm management unit 1a and an alarm control unit 1b for sending alarm notification and alarm management data after creating alarm management data based on an alarm notification in response to an input alarm management data request An NMS that manages the device state of the exchange 1 by sending a management data request and updating the alarm management data according to the alarm notification sent from the alarm control unit 1b.
2, the device management unit newly acquires the device status transition information indicating failure occurrence or failure recovery of the own device from the device status monitoring unit 1c separately from the failure notification to the exchange 1. 1d, the device state monitoring unit 1c notifies the device management unit 1d of the device state transition information including the device state transition information, and the alarm control unit 1b generates an alarm based on the device state transition information and the alarm notification. NMS according to management data or alarm management data request
By comparing and matching the alarm management data about the own device read from the second side, the alarm status matching process is performed to match and update the alarm management data with all device status transition information.

Here, the alarm control unit 1b detects a discrepancy between the alarm management data relating to its own device read from the NMS 2 in response to the alarm management data request and the device status indicated by the device status information acquired from the device management unit 1d. In addition to the alarm status matching process, NMS2
In response to a request for alarm management data from the device management unit 1d
The device management unit 1d sends a device status information request to the alarm control unit 1b in response to the device status information request.

By the way, in this alarm state management system, a fault occurrence notification and a device state transition information notification by the device state monitoring unit 1c, an alarm notification is issued by the alarm management unit 1a, and a device state transition information by the device management unit 1d. All the operation instructions relating to the sending, the alarm state matching process according to the alarm management data request by the alarm control unit 1b, the sending of the device status information request, and the alarm notification and the sending of the alarm management data are executed by executing the alarm management program. It can be built to be scaled. However, this alarm management program is
In response to an alarm management data request from the 2 side, the alarm control unit 1b sends a device status information request, and the device management unit 1
Sending device status transition information by d, alarm control unit 1b
It suffices that the alarm state matching process by the above, the alarm notification by the alarm control unit 1b, and the transmission of the alarm management data are performed in this order, and are stored in a program storage means (not shown) provided in the system.

In this alarm state management system, as a result of the device state monitoring section 1c of the exchange 1 monitoring the device state,
When a failure occurs or a failure is recovered, a failure occurrence notification is sent to the alarm management unit 1a, and a device status transition information notification including apparatus status transition information indicating a status at the time of failure occurrence or failure recovery is separately managed. It is sent to the section 1d.

The alarm management unit 1a, which has received the fault notification, displays alarm information indicating the contents of the fault notification on the alarm display unit (MAT) of the exchange 1, and sends the alarm notification to the alarm control unit 1b.

Upon receiving the alarm notification, the alarm controller 1b sends the alarm notification to the NMS 2 and the alarm management data created based on the notification, and the NMS 2 updates the alarm management data.

The functions up to this point are different from those of the existing apparatus except that the apparatus state monitoring unit 1c sends the apparatus state transition information notification to the apparatus management unit 1d when a failure occurs or the failure is recovered. do not do.

Therefore, if such a function remains as it is, an alarm notification (fault recovery alarm) when the fault is recovered after the fault occurs as a result of monitoring the own device state by the exchange 1
Is not notified to the NMS 2 due to communication failure or alarm leakage, even if the device status of the exchange 1 is not a failure
If the switch 1 fails to notify the NMS 2 that the switch 1 has failed, the switch 1 and the NMS 2 will be inconsistent in device status.

Therefore, in order to avoid such troubles, the alarm control unit 1b receives the alarm management data created from the device status transition information and the alarm notification from the device management unit 1d and the alarm read from the NMS 2 in response to the alarm management data request. NMS2 by performing alarm status matching processing that matches and updates alarm management data with all device status transition information by comparing and matching management data
The alarm management data of its own device and the device status of the exchange 1 are matched.

FIG. 2 is a sequence diagram showing an operation procedure relating to the alarm state matching processing of the alarm state management system.

That is, in this alarm state matching process, in order to match the mismatch, first, the action of the alarm management data request * 1 from the NMS2 side is automatically performed periodically (for example, every 30 seconds) or by the maintenance person's operation on the NMS2. To do. As a result, when the NMS 2 makes an alarm management data request * 1 to the alarm control unit 1b, the switch 1 sends a device status information request * 2 to the device management unit 1d that manages the device status. Device management unit 1
The device status information * 3 is acquired from d, and the alarm management data in the memory of the exchange 1 (which may be provided in the alarm control unit 1b itself) acquired by reading from the NMS 2 and the acquired device status information Compare and match * 4.

If the result of comparison / matching * 4 is different, no alarm has occurred in the alarm management data,
If the device status is faulty, the alarm management data for the corresponding device is changed to a status where an alarm is being generated. If an alarm is being generated on the alarm management data and the device status is normal (operating), Change the alarm management data for the relevant device to the alarm recovery status.

In this way, the alarm state matching process for updating the alarm management data read from the NMS 2 in accordance with all the apparatus state transition information is performed. After that, the alarm control unit 1b sends the alarm management data * 5 subjected to the alarm state matching processing to the NMS 2, and the NMS 2 displays and updates the alarm management data.

As a result, since the alarm management data of the exchange 1 held by the NMS 2 and the device state of the exchange 1 are made to coincide with each other, the device states of the exchange 1 and the NMS 2 are coincident with each other, and the problem of inconsistency is solved. To be done.

In the alarm status management system described above, the NMS 2 manages the equipment status of one exchange 1, but the NMS 2 normally manages the equipment status of a plurality of exchanges 1. It is configured,
Even in such a case, since the basic functions of the respective exchanges 1 are common, a simple configuration is used here for simplifying the explanation.

FIG. 3 is a flow chart showing the operation processing in the alarm control section 1b relating to the alarm state matching processing of this alarm state management system. However, the alarm state management system here assumes a general-purpose configuration in which the NMS 2 manages the device states of the plurality of exchanges 1.

Here, in the alarm control unit 1b, N
When the alarm management data request is sent from the MS2, the alarm state matching process is started. First, the device state is read by reading the device state information from the device management unit 1c (step S1), and then the maintenance person read from the NMS2. Based on the alarm management data table (shown in FIG. 4) determined by the Acknowledge information from FIG. 4, it is determined whether the contents of the result of the comparison between the device status and the current alarm management data match (step S2)
To do.

As a result, if they do not match, the alarm management data is corrected according to the alarm management data table so as to match all the apparatus state transition information (step S3), and if they match, no action is taken (step S4). In any case, after that, it is determined whether or not all the devices have been completed (step S5), and if all the devices have been completed, the alarm management data notification (step S6) is sent to the NMS2. If it has not ended, the process returns to the process before determining whether the contents of the device status and the current alarm management data based on the alarm management data table match (step S2) before returning to the process for all devices. The process is repeated until it is completed. In this way, the exchanges 1 and N
Matching of device states between the MSs 2 is measured.

In the alarm state management method and the alarm state management system described above, a device alarm when a fault occurs is targeted as the device state of the exchange 1. However, fault state information other than the device fault can be read. If there is an alarm other than the device alarm affected by the device status (for example, link failure), if the device is not installed, the exchange 1 issues an alarm notification (failure recovery alarm). Therefore, in such a case, the alarm state matching process can be performed by forcibly notifying the recovery in alarm management.

[0043]

As described above, according to the present invention, the apparatus state transition information indicating failure occurrence or failure recovery of the own apparatus is acquired separately from the failure notification on the exchange side, and NMS according to the alarm management data created from the alarm notification or the alarm management data request from the NMS
By comparing and matching the alarm management data read from the side, the alarm status matching process is performed to match the alarm management data with all the device status transition information and update it. The device states are matched, and as a result, the alarm state matching can be performed in a timely manner (real time).

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a basic configuration of an alarm state management system according to an embodiment to which an alarm state management method of the present invention is applied.

FIG. 2 is a sequence diagram showing an operation procedure relating to an alarm state matching process of the alarm state management system shown in FIG.

FIG. 3 is a flowchart showing an operation process in an alarm control unit related to an alarm state matching process of the alarm state management system shown in FIG.

FIG. 4 is an alarm management data table exemplifying alarm management data created by a switch of a conventional alarm status management system and managed by an NMS.

[Explanation of symbols]

1 exchange 1a Alarm management section 1b Alarm control unit 1c Device status monitor 1d Device management section 2 NMS (Network Management System)

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04L 12/24 G06F 13/00 351 H04L 12/26 H04L 29/14

Claims (9)

(57) [Claims] 1. An alarm notification obtained at the time of failure occurrence or failure recovery as a result of the switching equipment side monitoring the status of its own device in response to an alarm management data request from the network management system, and an alarm management created based on the alarm notification. An alarm state management method for managing the device state of the exchange by sending data to the network management system side and updating the alarm management data in response to the alarm notification at the network management system side. Separately from the acquisition of the alarm notification, device status transition information indicating failure occurrence or failure recovery of the device itself is acquired and compared / matched with the alarm management data, so that the alarm management data is transferred to all the device status transitions. An alarm feature characterized by performing an alarm condition matching process that matches and updates information. System management method. 2. The alarm state management method according to claim 1, wherein the exchange side uses the alarm management data and the device state information regarding the own device read from the network management system side in response to the alarm management data request. An alarm state management method, wherein the alarm state matching process is performed when a mismatch with the indicated device state is detected. 3. An alarm for creating alarm management data based on an alarm notification acquired when a failure occurs or a failure is recovered as a result of monitoring the status of the own device on the exchange side in response to an alarm management data request from the network management system side. The management data creation process and the alarm management data created based on the alarm notification by acquiring device status transition information indicating failure occurrence or failure recovery of the own device separately from the acquisition of the alarm notification on the exchange side, Alternatively, an alarm for updating the alarm management data in accordance with all the device status transition information by comparing and matching with the alarm management data regarding the own device read from the network management system side in response to the alarm management data request. The alarm management data matching process that performs the status matching process And an alarm management data sending step of sending the alarm management data subjected to the alarm status matching processing to the network management system side. 4. The alarm state management method according to claim 3, wherein in the alarm management data matching process, the alarm management data and the device relating to the own device read from the network management system side in response to the alarm management data request. An alarm state management method, wherein the alarm state matching process is performed when a mismatch with the device state indicated by the state information is detected. 5. A device status monitoring unit that monitors the status of its own device and gives a failure notification when a failure occurs or recovers from the failure, an alarm management unit that issues an alarm notification according to the failure notification, and alarm management data that is input. An exchange equipped with an alarm control unit for sending alarm notification data and the alarm management data after creating alarm management data based on the alarm notification in response to the request, and sending the alarm management data request and the alarm An alarm status management system comprising: a network management system that manages a device status of the exchange by updating the alarm management data based on the alarm notification sent from a control unit, wherein the exchange notifies the failure occurrence. In addition to the A device management unit that acquires device status transition information is provided, the device status monitoring unit notifies the device management unit of device status transition information including the device status transition information, and the alarm control unit Comparing and matching the device status transition information with the alarm management data created based on the alarm notification, or with the alarm management data regarding the device itself read from the network management system side in response to the alarm management data request. The alarm state management system is characterized by performing an alarm state matching process of updating the alarm management data in accordance with all the device state transition information. 6. The alarm status management system according to claim 5, wherein the alarm control unit reads the alarm management data regarding the own device read from the network management system in response to the alarm management data request from the device management unit. An alarm state management system, which performs the alarm state matching process when a mismatch with the device state indicated by the acquired device state information is detected. 7. The alarm status management system according to claim 5, wherein the alarm control unit sends a device status information request to the device management unit in response to the alarm management data request, and the device management unit An alarm state management system, wherein the device state transition information is sent to the alarm control unit in response to the device state information request. 8. The alarm status management system according to claim 7, wherein the apparatus status monitoring unit notifies the failure occurrence and the apparatus status transition information, the alarm management unit issues the alarm notification, and the apparatus management. A unit for transmitting the device state transition information, an alarm state matching process according to the alarm management data request by the alarm control unit, a device state information request, and the alarm notification and the alarm management data. An alarm state management system comprising: a program storage unit that stores an alarm management program for instructing and executing an alarm. 9. The alarm status management system according to claim 8, wherein the alarm management program sends the device status information request by the alarm control unit in response to the alarm management data request from the network management system side. It is characterized in that the device management unit transmits the device state transition information, the alarm state matching process by the alarm control unit, the alarm notification by the alarm control unit, and the alarm management data are transmitted in this order. Alarm status management system.