JP2803635B2 - Alarm collection method - 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 collection method, and more particularly, to an alarm collection method used when alarm information in virtual path units is notified as performance information to a higher-level monitoring device in an ATM transmission method. .

[0002]

2. Description of the Related Art Conventionally, virtual paths (V
As shown in FIG. 6, an alarm collection method used when notifying alarm information in units of P (Virtual Path) to a higher-level monitoring device as performance information is as follows.
Unnecessary alarm notification is stopped by the alarm valid / invalid information (for example, see Japanese Patent Application Laid-Open No. 3-16913).
No. 4 publication). In the alarm monitoring device 60, the failure information from the plurality of monitored devices 67 is collected by the alarm collection circuit 61 and output to the transmission format conversion circuit 62. Here, the alarm valid / invalid information stored in the memory circuit 64 is referred to.

In the memory circuit 64, when an arbitrary monitored device 67 is under construction such as maintenance / expansion and an invalid alarm can be generated, an alarm is inputted in advance from a keyboard 66 via an address setting writing circuit 65. Alarm valid / invalid information indicating invalidity is set. Therefore, the transmission format conversion circuit 62 refers to the alarm valid / invalid information, converts only the failure information from the terminal device 67 indicating validity into the transmission format, and sends the information to the central monitoring device 68 via the transmission circuit 63. Was to be sent to.

As another conventional alarm collection method, as shown in FIG. 7, an alarm reduction section 7 for reducing collected alarms is provided.
1 is provided to notify a minimum necessary alarm even when a large number of alarms are generated (for example, see
No. 279699). The alarms from the plurality of terminal devices 74 are collected by the alarm collecting unit 70 and output to the control unit 72 and the alarm degenerating unit 71.

[0005] The control unit 72 counts each collected alarm for each type. The alarm degenerating unit 71 sets a plurality of alarms for each type based on a predetermined order so that the total number of alarms does not exceed the upper limit according to the count value.
In this case, the number of alarms is reduced to one, and the reduced alarm is notified to the host device via the alarm processing unit 73.

[0006]

However, in such a conventional alarm collection method, in any case, an alarm is detected by the monitored device 67 or the terminal device 74 every relatively short unit time, for example, every second. And the alarm is collected by the alarm collection circuit 61 or the alarm collection unit 70 and notified to the host device at a relatively long unit time, for example, every 15 minutes. When monitoring a large-scale switching system, a high communication performance for transmitting a large number of alarms is required, and the alarm collection circuit 61 or the alarm collection unit 7 is required.
However, there is a problem in that the collection processing load at 0 is increased.

For example, in the ATM transmission system, a maximum of 4096 virtual paths can be defined per port on a transmission line, and an alarm for each virtual path defined for a plurality of transmission ports is issued, for example, every one second. In order to transmit the data, more advanced communication performance is required. In addition, it is necessary to collect and process a large number of alarms from such a large-scale system, for example, all alarms, for example, every second, and every time the alarm collection circuit 61 or the alarm collection unit 70 increases due to expansion or the like. However, there has been a problem that the processing load is dramatically increased. The present invention has been made to solve such a problem, and an object of the present invention is to provide an alarm collection method capable of reducing communication performance required for alarm collection and reducing an alarm collection processing load.

[0008]

In order to achieve the above object, according to the alarm collection method of the present invention, the alarm detection processing section updates the presence or absence of an alarm detected from a plurality of monitored objects as alarm information. The alarm holding unit to be held and the individual alarm information held in the alarm holding unit are firstly described.
And a second unit longer than the first unit time for each piece of performance information held in the alarm occurrence counting section. A valid data determination unit that determines the validity of the performance information based on a predetermined determination criterion every time, and a communication processing unit that notifies the alarm collection processing unit of each performance information determined to be valid by the valid data determination unit A communication processing unit that collects each piece of performance information notified from the alarm detection processing unit to the alarm collection processing unit, and an alarm processing unit that notifies each of the performance information collected by this communication processing unit to the higher-level monitoring device Is provided.

Therefore, in the alarm detection processing section, alarm information indicating the presence or absence of an alarm detected from a plurality of monitored objects is
The number of alarm occurrences is counted for each first unit time and updated and held as performance information, respectively, and the valid data determination unit performs the determination based on a predetermined determination criterion for each second unit time longer than the first unit time. The validity of the performance information is determined, and each piece of the performance information determined to be valid is notified to the alarm collection processing unit. In the alarm collection processing unit, each piece of performance information notified from the alarm detection processing unit is collected and notified to the higher-level monitoring device.

[0010] The alarm collection processing unit includes a trigger generation unit that generates and outputs a predetermined trigger signal every second unit time, and the valid data determination unit of the alarm detection processing unit is configured to output the trigger signal from the alarm collection processing unit. The validity of the performance information is determined every second unit time in accordance with the trigger signal. Therefore, the validity data determination unit of the alarm detection processing unit determines the validity of the performance information at every second unit time according to the trigger signal from the alarm collection processing unit.

The alarm collection processing unit includes a criterion setting unit for setting and outputting a predetermined criterion, and the alarm detection processing unit includes a criterion management unit for holding and managing the criterion set by the criterion setting unit. And the validity data determination unit of the alarm detection processing unit determines the validity of each piece of performance information based on the determination criterion held and managed by the determination criterion management unit. Therefore, the validity data judgment unit of the alarm detection processing unit judges the validity of each piece of performance information based on the judgment standard held and managed by the judgment standard management unit.

The alarm holding unit of the alarm detection processing unit is provided with two holding memories provided in parallel to hold alarm information, one of these holding memories being a writing side, and the other being a holding side. And a switch for arbitrarily switching and connecting the memory as a read side.
Therefore, in the alarm holding unit of the alarm detection processing unit, any one of the holding memories is arbitrarily switched and connected as the writing side and the other holding memory as the reading side.

The alarm occurrence number counting unit of the alarm detection processing unit is provided with two holding memories provided in parallel to hold performance information, and one of these holding memories is written on the writing side and the other is held on the other side. And a switch for arbitrarily switching and connecting the holding memory as a reading side. Therefore, in the alarm occurrence counting section of the alarm detection processing section, any one of the holding memories is arbitrarily switched and connected as the writing side and the other holding memory as the reading side.

[0014]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an alarm collection system according to an embodiment of the present invention. In particular, in a switching system such as an ATM transmission system, a case where alarm information on each virtual path is notified to a higher-level monitoring device as performance information is described. Will be described. In FIG. 1, reference numeral 1 denotes an alarm detection processing unit which detects alarm information on each monitored virtual path and notifies the performance information as performance information; Is an alarm collection processing unit.

In the alarm collection processing unit 2, reference numeral 21 denotes a communication processing unit that collects effective performance information from each of the alarm detection processing units 1, and reference numeral 22 denotes the effective performance information collected by the communication processing unit 21 to the host monitoring device 3. An alarm processing unit for notifying, a judgment criterion setting unit for notifying the alarm detection processing unit 1 of a judgment criterion of the validity of each alarm information such as whether or not a virtual path is set, 24
Is a trigger generation unit that sends out a trigger signal to each alarm detection processing unit 1 every relatively long predetermined unit time (second unit time), for example, every 15 minutes.

In the alarm detection processing unit 1, reference numeral 12 denotes an alarm holding unit for holding alarm information detected by the alarm detection unit 11 for each virtual path, and reference numeral 13 denotes a relatively short predetermined unit time (first unit time). For example, an alarm occurrence counting section 18 reads out alarm information held in the alarm holding section 12 every second, counts the number of occurrences, and holds and outputs the count value as performance information. A criterion management unit that holds the set criterion.

Reference numeral 14 denotes a valid data determining unit for determining the validity of each piece of performance information read from the alarm occurrence counting unit 13 based on the criteria stored in the criteria managing unit 18; A performance information holding unit 16 holds valid performance information as a determination result of the data determination unit 14, and a performance information holding unit 16 is enabled from the performance information holding unit 15 in response to a readout instruction (polling) from the communication processing unit 21 of the alarm collection processing unit 2. A communication processing unit 17 for reading and transmitting the performance information is activated in response to a trigger signal from the alarm collection processing unit 2, and is activated by the alarm detection unit 1.
This is a transfer processing unit that controls processing from 1 to the valid data determination unit 14.

Next, the operation of the present invention will be described with reference to FIG. The alarm information detected by the alarm detection unit 11 is held by the alarm holding unit 12. Alarm occurrence counting section 13
Is a relatively short unit time from the alarm holding unit 12, for example, 1
By reading the alarm information every second, the presence / absence of an alarm in a unit time is checked and counted, and performance information corresponding to each alarm information is generated.

The performance information generated by the alarm occurrence counting section 13 in this manner is based on a trigger signal output from the alarm collection processing section 2 for a relatively long predetermined unit time, for example, every 15 minutes. Thus, the validity / invalidity is determined by the valid data determination unit 14. In this case, the valid data determination unit 1
4 is a criterion set in the criterion management unit 18;
For example, validity / invalidity of the performance information is determined based on whether or not a virtual path is set, and only the performance information determined to be valid is stored in the performance information holding unit 15.

The valid data determination unit 14 determines whether the performance information is valid or invalid according to a procedure as shown in FIG. FIG. 5 is a flowchart showing the performance information determination process. First, the virtual path (VP) number is incremented (+1) to select a new virtual path (step 51), and it is determined whether the virtual path is valid, that is, whether it is set (step 52). If the virtual path is not set here (step 52: invalid), the performance information of the virtual path is discarded (step 53).

On the other hand, if the virtual path has been set (step 52: valid), it is determined whether or not the performance information (count value) is "0" (step 54). (Step 54: YES), the virtual path number and “no data” are notified to the performance information holding unit 15 (Step 55), and if not “0” (Step 5).
4: NO), the virtual path number, “data present”, and the performance information data are notified to the performance information holding unit 15 (step 56).

The above processing is repeatedly performed for all virtual paths (that is, performance information), and a series of determinations for all virtual paths are performed within a relatively long unit time indicated by a trigger signal. FIG.
In the above description, the presence / absence of setting of a virtual path has been described as an example. However, if another determination criterion is notified from the alarm collection processing unit 2, the validity / invalidity of each performance information is determined in step 52 based on the criterion. Invalidity determination is performed.

On the other hand, the communication processing unit 21 of the alarm collection processing unit 2 (see FIG. 1) polls the alarm detection processing unit 1 after the trigger signal is transmitted from the trigger generation unit 24.
The communication processing unit 16 of the alarm detection processing unit 1 reads out valid performance information from the performance information holding unit 15 in response to the polling, and transmits it to the alarm collection processing unit 2. In the alarm processing unit 22 of the alarm collection processing unit 2, after converting the effective performance information collected from the alarm detection processing unit 1 into a predetermined notification format,
The upper monitoring device 3 is notified.

The transfer processing section 17 of the alarm detection processing section 1
Is based on a trigger signal output from the trigger generation unit 24 for a relatively long unit time, for example, every 15 minutes. Control signals necessary for the operation performed every 15 minutes and 1 second in the alarm detection processing unit 1 ( (Timing signal) is generated and distributed to each unit.

As described above, the alarm occurrence counting section 13 counts the alarm information detected by the alarm detection processing section 1 and outputs it as performance information, and the validity of judging the validity of each performance information based on a predetermined criterion. And a data determination unit 14 for counting the number of alarm occurrences 1 for a relatively short unit time, for example, every second.
3, and the valid data is determined by the valid data determination unit 14 every relatively long unit time, for example, every 15 minutes, and only the performance information determined to be valid is notified to the alarm collection processing unit 2 according to polling. It is like that.

Therefore, as compared with the conventional case where an alarm is detected and transmitted in a relatively short cycle and the collected alarm is notified to a host device in a relatively long cycle, the alarm detection processing unit 1 The communication performance with the collection processing unit 2, that is, the communication performance required for alarm collection, can be reduced, and the load of the alarm collection processing can be reduced. Further, according to the present invention, as shown in FIG.
1 to 1n are connected to one alarm collection processing unit 2, the effect is further enhanced.

A relatively long unit time serving as a processing timing in the valid data judging section 14 is defined by a trigger signal from the alarm collecting processing section 2, or a criterion in the valid data judging section 14 is determined by the alarm collecting processing section 2. From the alarm collection processing unit 2 depending on the increase or decrease of the processing load in the alarm collection processing unit 2 depending on the number of the alarm detection processing units 1 and the required alarm management quality. It becomes possible to control.

Next, a second embodiment of the present invention will be described with reference to FIG. FIGS. 3A and 3B are explanatory diagrams showing an alarm holding unit according to the second embodiment of the present invention. FIG. 3A is a block diagram, and FIG. 3B is a block diagram of a holding memory.
In FIG. 3A, two holding memories 31 and 32 provided in parallel are switched and connected to each other on the opposite side by switching units 33 and 34.

That is, when the switching unit 33 is switched to the holding memory 31, the data indicating the presence / absence of the alarm output from the alarm detecting unit 11 at the preceding stage is stored in the holding memory 31 via the switching unit 33. . At this time, the switching unit 34
Is always switched to the opposite side of the switching unit 33, the data indicating the presence or absence of the alarm is read from the holding memory 32, and is sent to the alarm occurrence counting unit 13 at the subsequent stage through the switching unit 34. Is output.

Each of the holding memories 31 and 32 has a configuration as shown in FIG. 3B, and when selected by the switching unit 33, switches between data stored at a predetermined write address and switching. The logical sum of the data indicating the presence / absence of the alarm from the unit 33 is calculated by the logical sum gate 36 and is updated and stored at the original write address. When selected by the switching unit 34, data stored at a predetermined read address is read.

Therefore, writing and reading of data indicating the presence or absence of an alarm from the alarm detection unit 11 to the alarm holding unit 12 can be performed in parallel at the same timing. As compared with the case where / reading is alternately performed, the waiting time can be reduced, and a higher-speed processing operation can be performed.

Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 4 is an explanatory diagram showing a performance information holding unit according to the third embodiment of the present invention.
(A) is a block diagram, (b) is a block diagram of a holding memory. In FIG. 4A, two holding memories 41 and 42 provided in parallel are switched and connected by switching units 43 and 44 to opposite sides.

That is, when the switching unit 43 is switched to the holding memory 41 side, the valid data determination unit
The valid performance information output from is stored in the holding memory 41 via the switching unit 43. At this time, since the switching unit 44 is always switched to the opposite side to the switching unit 43, valid performance information is read from the holding memory 42, and the communication processing unit at the subsequent stage is 16
Is output to

Each of the holding memories 41 and 42 has a configuration as shown in FIG. 4B. When the holding memories 41 and 42 are selected by the switching section 43, the holding memories 41 and 42 are switched with data stored at a predetermined write address. The absence of valid performance information from the unit 43 indicates that the adder 4
6 and updated and stored at the original write address. When selected by the switching unit 44, data stored at a predetermined read address is read.

Therefore, writing and reading of effective performance information from the effective data determination unit 14 to the performance information holding unit 15 can be performed in parallel at the same timing, and writing to one memory can be performed. As compared with the case where the / reading is alternately performed, the waiting time can be reduced, and a higher-speed processing operation can be performed.

[0036]

As described above, according to the present invention, the alarm detection processing section reads out and counts each piece of alarm information indicating the presence or absence of an alarm detected from a plurality of monitored objects at every first unit time. An alarm occurrence counting section that is updated and held as performance information, and individual performance information held in the alarm occurrence counting section is determined based on a predetermined criterion for each second unit time longer than the first unit time. And a valid data determining unit for determining the validity of the performance information.
Each of the performance information determined to be valid by the valid data determination unit is notified to the alarm collection processing unit, and the alarm collection processing unit collects each performance information notified from the alarm detection processing unit and notifies the upper monitoring device. It is something to do.

Therefore, as compared with the conventional case where an alarm is detected and transmitted at a relatively short cycle and the collected alarm is notified to a higher-level device at a relatively long cycle, the performance information is sent to the alarm collection processing unit. Can be reduced, the notification interval can be lengthened, and the communication performance between the alarm detection processing unit and the alarm collection processing unit 2, that is, the communication performance required for alarm collection, can be reduced. The collection processing load on the processing unit can be reduced. Further, according to the present invention, when many alarm detection processing units are connected to one alarm collection processing unit, the effect is further enhanced.

Further, the validity data judgment section of the alarm detection processing section judges the validity of each performance information in response to a trigger signal from the alarm collection processing section, or the validity data judgment section of the alarm detection processing section. Since the validity of each piece of performance information is determined based on the criterion held and managed by the criterion management unit, the processing load on the alarm collection processing unit depends on the number of alarm detection processing units. It is possible to arbitrarily control the alarm collection processing unit according to the increase / decrease and the required alarm management quality.

In the alarm holding section of the alarm detection processing section or the alarm occurrence counting section of the alarm detection processing section, one of the two holding memories is the writing side and the other is the reading side. The side is arbitrarily switched and connected, so that the writing / reading of the alarm information or the performance information is performed, so that the writing / reading of the alarm information or the performance information can be performed in parallel at the same timing. Compared with the case where writing / reading is alternately performed on one memory, the waiting time can be reduced, and a higher-speed processing operation can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an alarm collection method according to an embodiment of the present invention.

FIG. 2 is a block diagram of an alarm collection method according to another embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an alarm holding unit.

FIG. 4 is an explanatory diagram showing a performance information holding unit.

FIG. 5 is a flowchart illustrating performance information determination processing.

FIG. 6 is a block diagram showing a conventional alarm collection method.

FIG. 7 is a block diagram showing another conventional alarm collection method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Alarm detection processing part, 11 ... Alarm detection part, 12 ... Alarm holding part, 13 ... Alarm number counting part, 14 ... Valid data judgment part, 15 ... Performance information holding part, 16 ... Communication processing part, 17 ...
Transfer processing unit, 18 judgment criteria management unit, 2 alarm collection processing unit, 21 communication processing unit, 22 alarm processing unit, 23 judgment criteria setting unit, 24 trigger generation unit, 3 superordinate monitoring device,
31, 32 ... holding memory, 33, 34 ... switching unit, 35 ...
Memory, 36: OR gate, 41, 42: Holding memory, 43, 44: Switching unit, 45: Memory, 46: Adder.

Claims (5)

(57) [Claims] 1. An alarm detection processor for notifying alarms detected from a plurality of monitored objects as predetermined performance information, and an alarm for collecting each piece of performance information notified from the alarm detection processor and notifying the higher-level monitoring device. In the alarm collection method including the collection processing unit, the alarm detection processing unit updates and holds the presence or absence of an alarm detected from a plurality of monitored targets as alarm information, and the alarm holding unit holds the alarm detection unit. An alarm occurrence counting section that reads out and counts each alarm information at every first unit time, and updates and holds each alarm information as performance information, and a first unit for each performance information held in the alarm occurrence counting section. A valid data determination unit that determines the validity of the performance information based on a predetermined determination criterion for every second unit time longer than the time, A communication processing unit for notifying each of the performance information determined to the alarm collection processing unit to the alarm collection processing unit. The alarm collection processing unit collects each performance information notified from the alarm detection processing unit, and the communication processing unit. An alarm processing unit for notifying the higher-level monitoring device of each piece of performance information collected by the unit. 2. The alarm collection method according to claim 1, wherein the alarm collection processing unit includes a trigger generation unit that generates and outputs a predetermined trigger signal every second unit time, and enables the alarm detection processing unit. The data collection unit determines the validity of the performance information for each second unit time in response to a trigger signal from the alarm collection processing unit. 3. The alarm collection method according to claim 1, wherein the alarm collection processing unit includes a criterion setting unit that sets and outputs a predetermined criterion, and the alarm detection processing unit is set by the criterion setting unit. A judgment criterion management unit for holding and managing the judgment criterion, wherein the valid data judgment unit of the alarm detection processing unit judges the validity of each performance information based on the judgment criterion held and managed by the judgment criterion management unit; An alarm collection method characterized by the following. 4. The alarm collecting method according to claim 1, wherein the alarm holding unit of the alarm detection processing unit is provided in parallel with two holding memories respectively holding alarm information, and one of these holding memories And a switch for arbitrarily switching and connecting the holding memory as a writing side and the other holding memory as a reading side. 5. The alarm collection system according to claim 1, wherein the alarm occurrence number counting unit of the alarm detection processing unit is provided in parallel with two holding memories respectively holding performance information, and any one of these holding memories An alarm collection system, comprising: a switching device that arbitrarily switches and connects one of the holding memories as a writing side and the other holding memory as a reading side.