WO2008028423A1

WO2008028423A1 - Warning method, system and device enable to realize synchronous warning

Info

Publication number: WO2008028423A1
Application number: PCT/CN2007/070522
Authority: WO
Inventors: Gaofeng Li
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-09-04
Filing date: 2007-08-20
Publication date: 2008-03-13
Also published as: CN1925427A

Abstract

A warning method, warning device, network management system and warning system including warning device and network management system are provided. The warning device maintains a non-recovery warning list for recording local device faults locally, and the network management system stores the non-recovery warning list corresponding to the warning device. The method includes the following steps: the warning device reports the non-recovery warning list locally maintained to the network management system; the network management system receives the non-recovery warning list reported by the warning device, and updates the non-recovery warning list locally stored according to the non-recovery warning list from the warning device. The method can realize a reliable warning synchronization, and make the non-recovery warning and the faults of the warning device real and consistent.

Description

Alarm method, system and device capable of realizing synchronous alarm

Technical field

The present invention relates to the field of telecommunication device management, and in particular, an alarm method, system and device capable of realizing synchronous alarms. Background of the invention

In the field of telecommunication equipment management, monitoring of alarms, equipment and network management systems

A Simple Network Management Protocol (SNMP) and a character-based Command Line Interface (CLI) are commonly used between Network Manager Systems (NMS).

In the management system of the SNMP protocol, when the alarm device is faulty, the device uses the SNMP Trap mode to report the alarm to the NMS through the alarm reporting channel. After the NMS processes the received alarms, analyzes the correlation, and saves them to the alarm database. That is, the alarm reporting channel works in the asynchronous mode: When a fault occurs, the alarm device actively reports the alarm to the NMS.

The NMS management request for the alarm device is completed through the "configuration channel", and the configuration channel works in the "request/response" mode. The NMS issues a management request (an operation such as GET or SET of SNMP), and the alarm device completes the corresponding function and returns a response to the NMS. That is, the configuration mode of the configuration channel is synchronous: The NMS delivers the management command, and the alarm device returns the corresponding response. Where GET and SET are SNMP protocol standard operations, GET is used to obtain the value of the management variable corresponding to the Object Identifier (OID); SET is the value of the management variable corresponding to the specified OID.

In the management system using the CLI interface, when the alarm device fails, the alarm of the alarm device reports the alarm through the alarm reporting channel. The alarm reporting format is based on the string mode. The specific format is agreed by the alarm device and the NMS. That is, the alarm reporting channel works differently. Step mode: When a fault occurs, the alarm device actively reports the alarm.

The management request of the NMS to the alarm device is completed through the "configuration channel". The NMS sends a management request command to the alarm device through the configuration channel. The alarm device completes the corresponding function and returns a response to the NMS. That is, the working mode of the configuration channel is synchronous: The NMS sends a management command, and the alarm device returns a corresponding response.

In the above two alarm systems and alarm methods, alarm monitoring and fault management are performed on the device through the alarm monitoring station on the NMS. The alarm device displayed on the NMS alarm monitoring station does not recover whether the alarm is consistent with the actual situation of the alarm device failure, which is important for equipment maintenance. If the unrecovered alarm displayed on the NMS is less than the actual fault condition of the alarm device, the device failure cannot be handled in time; otherwise, it will waste time and cost to deal with some recovered faults. The network between the NMS and the alarm device may be a wide area network across geographies, making it more difficult to synchronize the alarm information between the NMS and the alarm device. Therefore, a complete alarm synchronization system and method are required to ensure that the alarm information on the NMS is consistent with the actual fault condition of the alarm device.

The existing alarm system and alarm method use an alarm caching mechanism to solve the alarm synchronization problem on the NMS and the alarm device.

When the alarm device detects that the NMS receives an alarm abnormality (the network may be disconnected, the NMS is faulty, etc.), the alarm information is cached. When the alarm device detects that the NMS can receive the alarm normally, the alarm is reported to the NMS through the alarm reporting channel.

For the management system adopting the SNMP protocol, the above method has the problem that the alarm synchronization is unreliable. This is because: the transport layer protocol based on the SNMP protocol is UDP, and the UDP provides an unreliable transmission service. Therefore, the NMS successfully receives the alarm. The alarm traps reported by the device are not guaranteed by the UDP layer. As a result, alarm packets may be lost. In addition, the UDP layer does not provide a mechanism to check if the destination is still normal.

For the management system based on SNMP protocol and CLI interface, the above methods still exist the following Problem: When the alarm device reports an alarm to multiple NMS systems, the alarm device needs to perform alarm cache processing for each NMS system, which increases the complexity of management system development. When the NMS crashes or is upgraded, the NMS may lose device alarm information. The NMS cannot recover lost alarm information through the device alarm cache mechanism. Summary of the invention

The embodiments of the present invention provide an alarm method, a system, and a device that can implement the synchronization alarm, and can implement the alarm synchronization, and the alarm that is not restored by the alarm device on the NMS is consistent with the fault of the alarm device.

The alarm system provided by the embodiment of the invention includes an alarm device and a network management system; the alarm device includes:

The alarm list maintenance module is configured to maintain a local unrecovered alarm list: when a new alarm is generated, the new alarm is added to the unrecovered alarm list; when an alarm is restored, the alarm is deleted from the unrecovered alarm list. ;

An alarm list reporting module, configured to send a locally maintained unrecovered alarm list to the network management system;

The network management system includes:

The alarm processing module is configured to save an unrecovered alarm list corresponding to each alarm device, and receive an unrecovered alarm list reported by the alarm device, and update the saved unrecovered alarm list according to the unrecovered alarm list from the alarm device.

The alarm device provided by the embodiment of the present invention includes:

The alarm list reporting module is used to report the list of unrecovered alarms for local maintenance. A network management system according to an embodiment of the present invention includes: an alarm processing module, configured to save an unrecovered alarm list corresponding to each alarm device, and receive an unrecovered alarm list reported by the alarm device, according to an unrecovered alarm from the alarm device. List, update the saved list of unrecovered alarms.

In the alarm method provided by the embodiment of the present invention, the alarm device locally maintains an unrecovered alarm list for recording the local device failure, and the network management system saves the unrecovered alarm list corresponding to the alarm device, and includes the following steps:

The alarm device reports the unrecovered alarm list of the local maintenance to the network management system. The network management system receives the unrecovered alarm list reported by the alarm device, and updates the locally saved unrecovered alarm list according to the unrecovered alarm list from the alarm device.

In the solution of the present invention, the alarm device locally maintains an unrecovered alarm list for recording the local device failure, and the network management system receives the unrecovered alarm list reported by the alarm device, and updates the locally saved data according to the unrecovered alarm list from the alarm device. The alarm list is restored, so that the alarms can be synchronized, and the alarms that are not restored by the alarm device on the NMS are consistent with the faults of the alarm device. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of an alarm system according to the present invention;

2 is a flow chart of an alarm method of the present invention. Mode for carrying out the invention

In the embodiment of the present invention, the network management agent (Agent) of the alarm device is modified, and the alarm device maintains an unrecovered alarm list for recording the local device failure: when a new alarm is generated, the new alarm is added to the unrecovered alarm list; When the alarm is restored, the alarm is deleted from the unrecovered alarm list. As shown in FIG. 1 , it is a schematic structural diagram of an alarm system according to an embodiment of the present invention, including an alarm device and a network management system. In this embodiment, the alarm device includes an SNMP alarm device 21 and a CLI alarm device 22, which are used to report the unrecovered alarm list of the local maintenance.

In this embodiment, the network management system is an NMS1, and is configured to receive an unrecovered alarm list reported by the alarm device, and perform processing according to the alarm list. The NMS 1 includes an SNMP protocol adapter 121 connected to the SNMP alerting device 21, and a CLI protocol adapter 122 connected to the CLI alerting device 22. Both protocol adapters 121 and 121 are used for the alerting devices 21, 22 and the network management system 1. The alarm list reported by the alarm devices 21, 22 is parsed into the same format. For the SNMP alarm device 21 that provides the SNMP protocol, add an "unrecovered alarm," Management Information Base (MIB) table, so that the NMS can query for unrecovered alarms, support SNMP GET/GETNEXT operations, and define alarm traps. The alarm content is the same.

For the CLI alarm device 22 that provides the CLI interface, add the "Query Unrecovered Alarm" command interface.

Command description: 1st alarm: netid= [, sd = , ed = ];

The input and output parameters are shown in Table 2 and Table 3:

Enter ^ b3⁄4 Description

Netid NE number

Sd Query the start period of the unrecovered alarm

Ed Query the end period of the unrecovered alarm Table 2, Input parameters Output Description

Netid NE number SerialNo alarm serial number

AlarmID alarm type number

AlarmTitle alarm name

AlarmLevel alarm level: emergency, important, secondary and police

AlarmCategory Alarm Classification: Communication Alarm, Device Alarm, Processing Error, Quality of Service, and Environmental Alarm

AlarmReason alarm reason

AlarmOccurTime alarm occurrence time

AlarmLocationlnfo location information

AlarmAdditionallnfo Additional Information Table 3, Output Parameters As shown in FIG. 1, the NMS 1 further includes an alarm processing module 11 connected to the SNMP protocol adapter 121 and the CLI protocol adapter 122 for performing the alarm list received from the protocol adapters 131, 122. For the alarm device 21 or the alarm device 22, the alarm that is not on the network management system 1 is added to the unrecovered alarm list on the network management system side; for the alarm device 21 or the alarm device 22, the network management system 1 The alarm is generated to restore the alarm on the network management system side. For the alarm device 21 or the alarm device 22 and the network management system 1, the alarm is not operated.

The dotted line in the figure indicates the flow of the synchronous alarm report, and the dotted line indicates the flow of the alarm synchronization command. An "alarm synchronization command" interface is added between the alarm devices 21, 22 and the NMS1.

The alarm device may also send the locally maintained unrecovered alarm list to the NMS according to the alarm synchronization command from the NMS; the NMS also maintains the unrecovered corresponding to each alarm device. The alarm list, and according to the unrecovered alarm list from the alarm device, update the corresponding unrecovered alarm list of the local maintenance.

The SNMP alarm device 21 may further include:

The alarm list reporting module is used to report the list of unrecovered alarms for local maintenance.

In order to receive the alarm synchronization command from the network management system, the SNMP alarm device 21 further includes:

The synchronous alarm receiving module is configured to receive an alarm synchronization command from the network management system, and notify the alarm list reporting module to report the locally maintained unrecovered alarm list to the network management system according to the received alarm synchronization command.

The SNMP alarm device 21 may further include:

Detection unit and cache unit,

The detecting unit is configured to: before the alarm list reporting module reports the alarm information including the unrecovered alarm list to the network management system, whether the network management system can receive the alarm information, and if so, and the alarm information is already cached in the cache unit. And extracting the alarm information that is cached in the cache unit and including the unrecovered alarm list, and the alarm list reporting module reports the alarm information to the network management system. If there is no alarm information in the cache unit, the alarm list reporting module generates the The alarm information is reported to the network management system; otherwise, the detecting unit instructs the cache unit to cache the alarm information including the unrecovered alarm list;

The cache unit is configured to cache alarm information including an unrecovered alarm list.

The CLI alarm device 22 can adopt the same internal structure as the SNMP alarm device 21, and therefore will not be described.

NMS1 can further include: The synchronous alarm triggering module is configured to save a preset synchronous alarm triggering condition, and determine whether the triggering condition of the synchronous alarm is met, and if yes, issue an alarm synchronization command to the alarming device.

The alarm processing module may further include a comparison unit and an update unit. The comparison unit is configured to compare the unrecovered alarm list reported by the alarm device with the corresponding unrecovered alarm list saved by the alarm processing module, and report the report to the alarm device. An alarm that is not in the unrecovered alarm list of the alarm processing module is not recovered, and the update unit is instructed to add the alarm to the unrecovered alarm list of the alarm processing module; The alarm is not included in the unrecovered alarm list of the alarm processing module, and the update unit is instructed to perform the recovery operation on the alarm in the unrecovered alarm list of the alarm processing module;

The updating unit is configured to perform an adding or restoring operation on the unrecovered alarm list saved by the alarm processing module according to the indication of the comparing unit.

As shown in FIG. 2, it is a flowchart of an alarm method according to an embodiment of the present invention. The specific steps are as follows: Step 101: After the NMS is successfully connected to the alarm device (the user can also manually or periodically trigger the alarm synchronization operation), the alarm processing module of the NMS Sending a synchronous alarm operation to the protocol adapter;

Step 102: The protocol adapter obtains an unrecovered alarm list of the alarm device from the alarm device. For the SNMP protocol adapter, the SNMP protocol adapter obtains the unrecovered alarm list on the SNMP alarm device through the GET or GetNext operation. As shown in Table 1, for the SNMP alarm device that provides the SNMP protocol, add the MIB table. For the CLI protocol adapter, The CLI protocol adapter sends an alarm synchronization command to the CLI alarm device through the configuration channel. The CLI alarm device returns the list of unrecovered alarms on the CLI alarm device. For the CLI alarm device 22 that provides the CLI interface, the "Query Unrecovered Alarm" command interface is added. The commands and input and output parameters are shown in Table 2 and Table 3; the GET and GetNext operations are SNMP. Protocol standard operation, GET is used to obtain the value of the management variable corresponding to the specified object identifier (Object Identifier, OID); GetNext is used to obtain the value of the next management variable of the specified OID;

Step 103: The protocol adapter parses the alarm list into the same format, sets a synchronization alarm flag, and returns the parsed alarm list to the alarm processing module.

Step 104: The alarm processing module receives the parsed alarm list. If the alarm device has an alarm that is not on the network management system, it is added to the unrecovered alarm list on the network management system side. For the alarm device, the network management system does not. Some alarms are used to restore the alarm on the network management system side. For alarms and alarms on the network management system, no operations are performed on the alarm.

The step 101 can also be used as follows: The NMS determines whether the synchronization triggering condition is set in advance. If the synchronous alarm triggering condition is met, the alarm processing module of the NMS sends an alarm synchronization command to the protocol adapter. The triggering conditions include, but are not limited to, the NMS is successfully connected to the alarm device, the user manually sets the triggering alarm synchronization operation, or the timing triggers the alarm synchronization operation.

In the foregoing step 101 to step 102, the network management system first sends an alarm synchronization command to the alarm device, and the alarm device reports the unrecovered alarm list that is locally maintained to the network management system according to the received alarm synchronization command; The local maintenance unrecovered alarm list can be directly reported to the network management system by the alarm device.

For the NMS, the synchronization alarm is different from the normal alarm processing and needs to be distinguished. The invention is distinguished by different reporting channels, and the specific description is as follows: For the SNMP alarm device, the normal alarm reporting is performed in the Trap mode; the synchronous alarm is obtained through the configuration channel.

For a CLI alarm device, the normal alarm is obtained through a proprietary alarm channel; the synchronization alarm is obtained through the configuration channel. The present invention can also use the existing method: When the alarm device detects that the NMS cannot receive the alarm normally, it caches the alarm information. When the NMS is detected, the alarm information is reported to the NMS through the alarm reporting channel.

Therefore, the network management agent on the alarm device of the present invention does not need to detect whether the NMS can receive the alarm normally. Therefore, it is not necessary to detect whether the peer is normal, and the alarm synchronization mechanism is independent of how many NMSs are connected to the alarm device. When the NMS loses the alarm for some reason. You can also obtain all current unrecovered alarms of the device in this way.

It should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments. Modifications or equivalents are made without departing from the spirit and scope of the invention.

Claims

Claim

An alarm system, comprising: an alarm device and a network management system; the alarm device includes:

The network management system includes:

2. The alarm system according to claim 1, wherein the network management system further comprises:

The synchronous alarm triggering module is configured to save a preset synchronous alarm triggering condition, and determine whether the triggering condition of the synchronous alarm is met, and if yes, send an alarm synchronization command to the alarming device;

The alarm device further includes:

The synchronous alarm receiving module is configured to receive an alarm synchronization command from the network management system, and notify the alarm list reporting module to send the locally maintained unrecovered alarm list to the network management system according to the received alarm synchronization command.

The alarm system according to claim 1, wherein the alarm processing module of the network management system further comprises a comparing unit and an updating unit;

The comparison unit is configured to process an unrecovered alarm list and alarm processing reported by the alarm device. The corresponding unrecovered alarm list saved by the module is compared, and the alarm unit does not include an alarm in the unrecovered alarm list of the alarm processing module, and the update unit is instructed to add the alarm to the alarm processing module. In the unrecovered alarm list, the alarm is not included in the unrecovered alarm list reported by the alarm device, and the alarm is in the unrecovered alarm list of the alarm processing module, and the alarm is in the unrecovered alarm list of the alarm processing module. Perform recovery operations;

And an updating unit, configured to perform an adding or restoring operation on the unrecovered alarm list saved by the alarm processing module according to the indication of the comparing unit.

The alarm system according to claim 1, wherein the network management system further comprises a protocol adapter, which is respectively connected to the alarm processing module and the alarm device, and is used for an alarm device and a network management system. Performing protocol adaptation, parsing the unrecovered alarm list reported by the alarm device into a unified format, and sending the unrecovered alarm list to the alarm processing module.

5. The alarm system according to claim 4, wherein the protocol adapter is a simple network management protocol SNMP adapter or a command line interface CLI protocol adapter.

The alarm system according to any one of claims 1 to 5, wherein the alarm list reporting module of the alarm device further comprises: a detecting unit and a buffer unit, and a detecting unit, configured to send an alarm list reporting module to the network Before the management system reports the alarm information including the unrecovered alarm list, it is detected whether the network management system can receive the alarm information. If yes, and the alarm information is already cached in the cache unit, the cached cached content in the cache unit is not restored. The alarm information of the alarm list, the alarm list reporting module reports the alarm information to the network management system. If there is no alarm information in the cache unit, the alarm list reporting module generates the alarm information and reports the alarm information to the network management system; otherwise, The detecting unit instructs the cache unit to cache alarm information including an unrecovered alarm list;

a cache unit, configured to cache alarm information including an unrecovered alarm list.

7. An alarm device, comprising:

The alarm device according to claim 7, wherein the alarm device further comprises:

The alarm device according to claim 8, wherein the alarm list reporting module further comprises: a detecting unit and a buffer unit,

The detecting unit is configured to: before the alarm list reporting module reports the alarm information including the unrecovered alarm list to the network management system, whether the network management system can receive the alarm information, and if so, and the alarm information is already cached in the cache unit. And extracting the alarm information that is cached in the cache unit and including the unrecovered alarm list, and the alarm list reporting module reports the alarm information to the network management system. If there is no alarm information in the cache unit, the alarm list reporting module generates the The alarm information is reported to the network management system; otherwise, the detecting unit instructs the buffer unit to cache the alarm information including the unrecovered alarm list; and the buffer unit is configured to cache the alarm information including the unrecovered alarm list.

A network management system, comprising: an alarm processing module, configured to save an unrecovered alarm list corresponding to each alarm device, and receive an unrecovered alarm list reported by the alarm device, according to the unrecovered alarm from the alarm device Alarm list, update the saved list of unrecovered alarms.

11. The network management system according to claim 10, wherein: said network The network management system further includes:

The synchronization alarm triggering module is configured to save the preset synchronization alarm triggering condition, and determine whether the triggering condition of the synchronous alarm is met. If yes, the alarm synchronization command is sent to the alarming device.

The network management system according to claim 10, wherein the alarm processing module further comprises a comparing unit and an updating unit;

The comparison unit is configured to compare the unrecovered alarm list reported by the alarm device with the corresponding unrecovered alarm list saved by the alarm processing module, and the unrecovered alarm list of the alarm processing module is included in the unrecovered alarm list reported by the alarm device. An alarm that is not included in the update unit indicates that the update unit adds the alarm to the unrecovered alarm list of the alarm processing module; and the alarm that is not in the unrecovered alarm list of the alarm processing module that is not reported by the alarm device, Instructing the update unit to perform a recovery operation on the alarm in the unrecovered alarm list of the alarm processing module;

The network management system according to claim 10, 11 or 12, wherein the network management system further comprises a protocol adapter, which is respectively connected to the alarm processing module and the alarm device, and is used for alarming The device and the network management system perform protocol adaptation, parse the unrecovered alarm list reported by the alarm device into a unified format, and send the unrecovered alarm list to the alarm processing module.

14. An alarm method, wherein the alarm device locally maintains an unrecovered alarm list for recording a local device failure, and the network management system saves an unrecovered alarm list corresponding to the alarm device, and includes the following steps:

The alarm device reports the unrecovered alarm list of the local maintenance to the network management system; the network management system receives the unrecovered alarm list reported by the alarm device, according to the alarm The unrecovered alarm list of the device updates the locally saved list of unrecovered alarms.

The alarm method according to claim 14, wherein before the alarm device reports the locally maintained unrecovered alarm list to the network management system, the method further includes: determining, by the network management system, whether the preset synchronization alarm trigger is met. If the alarm is generated, the alarm synchronization command is sent to the alarm device.

The alarm method according to claim 15, wherein the synchronization alarm triggering condition comprises: the network management system successfully connects with the alarm device, and the user manually sets the trigger alarm synchronization operation or the timing trigger alarm synchronization operation.

The alarm method according to claim 14, wherein the network management system updates the locally saved unrecovered alarm list according to the unrecovered alarm list from the alarm device, including:

The network management system compares the unrecovered alarm list reported by the alarm device with the corresponding unrecovered alarm list saved by the alarm device, and the alarm that is not included in the unrecovered alarm list saved in the unrecovered alarm list reported by the alarm device will be The alarm is added to the unrecovered alarm list saved by the alarm device. For the alarms in the unrecovered alarm list that are not saved in the unrecovered alarm list reported by the alarm device, the alarm is saved in the unrecovered alarm list saved by the alarm. Resume the operation.

The alarm method according to claim 14, wherein the network management system receives the unrecovered alarm list reported by the alarm device, and the network management system receives the unrecovered alarm list reported by the alarm device, and the unrecovered The alarm list is converted to the same format as the locally saved unrecovered alarm list.

The alarm method according to any one of claims 14 to 18, wherein the alarm device reports the locally maintained unrecovered alarm list to the network management system, including: the alarm device detects whether the network management system detects Receiving the alarm information including the unrecovered alarm list, and if yes, reporting the alarm information to the network management system; Otherwise, the alarm device caches the alarm information <