JP3138849B2 - Distributed monitoring system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distributed monitoring system in a large-scale network. In a large-scale network with a single carrier, a large-scale network with multiple carriers, an in-house network, a private network, etc., in order to quickly recover from failures in each network, a network is required. Monitoring is required. For that purpose, various monitoring systems have already been applied.

[0002]

2. Description of the Related Art FIG. 8 is an explanatory view of a conventional centralized monitoring system.
The network is constructed by connecting the lines by a line shown by a solid line, and monitoring information from each node 32 is collected by the centralized monitoring device 31, and the entire network is collected by the centralized monitoring device 31.
It is monitored by.

FIG. 9 is an explanatory diagram of a centralized monitoring system provided with a conventional child monitoring device. When a network is scaled up, it becomes difficult to monitor the entire network with one centralized monitoring device. Therefore, the network is divided into a plurality of areas 41-1, 41-2, 41-3,..., And a child monitoring device 42 is provided for each area.
This monitors the network including the nodes 43 in the area, edits the monitoring information, transfers it to the parent monitoring device 44, and the parent monitoring device 44 monitors the entire network.

FIG. 10 is an explanatory diagram of a conventional distributed monitoring system. In a large-scale network, an area 51 composed of a network including a plurality of nodes 53 is shown.
-1, 51-2, 51-3,... Are provided with monitoring devices 52, and each monitoring device 52 monitors the inside of its own area. For example, when a plurality of networks are connected to each other to form a large-scale network, a monitoring device 52 is provided for each network, and a network managed by a plurality of carriers is connected to each other. When a large-scale network is configured in this way, the monitoring device 52 is arranged for each network corresponding to the communication carrier.

[0005]

As described above, in the centralized monitoring system, when the network is enlarged, the processing load on the centralized monitoring device becomes extremely large, and the amount of information transferred to the centralized monitoring device becomes extremely large. , It becomes difficult to realize. There is also a disadvantage that it is not easy to cope with network expansion and the like. A hierarchical monitoring system in which a parent monitoring device monitors a child monitoring device can reduce the processing load of the parent monitoring device in a large-scale network. The connected large-scale network has a disadvantage that it cannot be monitored on a carrier or service provider basis.

[0006] The conventional distributed monitoring system has an area 5
.., 51-2, 51-3,... Can be independently monitored, so that monitoring can be performed on a network (area) basis such as a network by a plurality of communication carriers or a corporate network. it can. However, since the areas are connected to each other by a line, a line failure in one area may spread to another area. In the area where the line failure has spread, there is a possibility that the system will go down in the own area even though it is not a line failure in the own area, but there is a disadvantage that the cause of the failure cannot be searched for. The present invention adds a relatively simple function,
An object of the present invention is to enable determination of a main cause of a line failure.

[0007]

The distributed monitoring system according to the present invention will be described with reference to FIG. 1. (1) Independent monitoring for each of a plurality of areas 1-1 to 1-n constituting a large-scale network In a distributed monitoring system in which the devices 2-1 to 2-n are provided and monitored, the monitoring devices 2-1 to 2-n include hierarchical line information of an area to be monitored and a line under the monitoring of the own monitoring device.
Maintains the connection relationship between the line and the line monitored by another monitoring device
Between the line information holding unit to be monitored and the monitoring devices 2-1 to 2-n.
Connect to each other and transfer the line information and the judgment result of the line failure
Transfer control unit, and the line information held in the line information holding unit.
From other monitoring devices received via the
Based on the judgment result,
A judgment processing unit for judging an upper layer line as a main cause . Reference numeral 3 denotes a network node such as an exchange.

(2) The monitoring devices 2-1 to 2-n determine the main cause of the line failure detected by the own monitoring device, and transfer the determination result of the main cause to another monitoring device. Is configured to determine the main cause of the line failure in the monitored area based on the transferred main cause determination result and the hierarchized line information.

(3) Also, when it is predicted that a line fault will occur due to a line operation or the like monitored by its own monitoring device, the monitoring devices 2-1 to 2-n notify other monitoring devices of the predicted line fault occurrence. In addition, an alarm mask in the self-monitoring device can be performed.

(4) In addition, when a line failure occurs due to a line operation or the like monitored by its own monitoring device, the monitoring devices 2-1 to 2-n transfer the determination result of the main cause of the line failure to another monitoring device. At the same time, a configuration may be adopted in which information indicating that a fault has occurred due to the work is added and transferred.

(5) Further, the monitoring apparatuses 2-1 to 2-n determine the main cause of the line failure based on the hierarchically held line information and determine the area related to the line in which the failure has occurred. The configuration may be such that the data is transferred only to the corresponding monitoring device.

[0012]

[Action]

(1) Monitoring devices 2-1 and 2-2 corresponding to areas 1-1 to 1-n
-N holds line information hierarchized based on the hierarchy of the line in the own area. This line information is notified to another monitoring device. Therefore, each of the monitoring devices 2-1 to 2-n
Can recognize the relationship of the line connection between the own area and another area. Then, the main cause of the line failure is determined based on the layered line information.

(2) When each of the monitoring devices 2-1 to 2-n detects a line fault in its own monitoring device, it determines the main cause based on the held line information, and determines the result of the determination by another monitoring device. Transfer to the monitoring device. In the area where the line failure spread,
Since the line failure is detected and the determination result is transferred as indicated by the arrow, the main cause of the line failure can be determined based on the layered line information.

(3) The monitoring devices 2-1 to 2-n temporarily perform a task such as a change of a line connection, an addition of a node, or an addition of a line in an area monitored by the own monitoring device. There is a line where communication is interrupted. Since such a work is known in advance as a work schedule, a line fault occurrence prediction is notified to another monitoring device according to the work schedule. Thereby, when the other monitoring device receives the determination result of the main cause of the line failure, it can determine that the cause is the line work,
The occurrence of an alarm can be prevented. Also, by performing alarm masking in the self-monitoring device, it is possible to prevent the occurrence of an alarm due to line work.

(4) In addition, the monitoring devices 2-1 to 2-n perform operations such as line connection change, node addition, and line addition in the area under the monitoring of the own monitoring device. The communication is temporarily interrupted, the line failure state is detected, the main cause is determined, and the determination result is transferred to another monitoring device. In this case, if the line failure is in accordance with the work schedule, information indicating that the failure occurred due to the work is added and transferred. Therefore, the other monitoring device can easily recognize the line failure due to the line operation based on the additional information.

(5) Further, the monitoring devices 2-1 to 2-n determine the main cause of the line failure based on the layered line information and store the determined result in the layered line information. Based on the above, the data is transferred only to the monitoring device corresponding to the area related to the faulty line, and the amount of information transferred between the monitoring devices is reduced.

[0017]

FIG. 2 is an explanatory view of an embodiment of the present invention.
-1 to 11-3 are areas, 12-1 to 12-3 are area-based monitoring devices, 13 is a node such as an exchange, 14-1 to 14-1
14-3 is a line connecting between the areas, 15 is a transfer control unit, 16 is a judgment processing unit, and 17 is a line information holding unit.

A plurality of areas 11-1 to 11-3 are connected to line 1
A large-scale network is configured by connecting with 4-1 to 14-3 and the like. Each of the areas 11-1 to 11-3 may be a large-scale network divided, a network managed by a different communication carrier, a different company network, or the like. Independent monitoring device 1 corresponding to those areas 11-1 to 11-3
2-1 to 12-3 are provided. With only such a configuration,
This is the same as the conventional distributed monitoring system.

In the embodiment of the present invention, each monitoring device 12-1
-12-3 includes, for example, as shown in an enlarged manner, a transfer control unit 15, a determination processing unit 16, and a line information holding unit 17, and the line information holding unit 17 When the information is stored, the line information is transferred to another monitoring device via the transfer control unit 15. Each monitoring device identifies a line connection relationship or the like based on the line information of its own monitoring device and the line information from another monitoring device, and stores it in the line information holding unit 17.

The determination processing unit 16 determines the main cause of the line failure based on the line information held in the line information holding unit 17 by detecting the occurrence of the line failure. This determination result is transferred to another monitoring device via the transfer control unit 15. The information between the monitoring devices 12-1 to 12-3 is, for example, an area 11
The signal may be superimposed on the main signal transmitted through the lines 14-1 to 14-3 connecting between -1 to 11-3 in a time-division manner or may be superimposed in an analog manner and transferred.

FIG. 3 is a diagram for explaining the relationship between line connection and the effect of line failure. In FIG.
The case where 4-2 is line b and line 14-3 is line c is shown. Therefore, the line b connects the areas 11-1 and 11-3. Areas 11-1 and 11-2
The line a between the lines indicates a multiplexed line, and therefore includes logical lines a-1 and a-2, and includes areas 11-2 and 11-2.
The line c between -3 and -3 indicates the case of the line a-1. The line a-2 is a line a-2-2 terminating in the area 11-2.
2 and a case where a line a-2-1 extending to the area 11-3 is included. It also shows the range of the failure of the line a in the area 11-1.

FIG. 4 is an explanatory diagram of the line information according to the embodiment of the present invention. In the case of the line configuration shown in FIG.
In this example, lines a and b are included, and line a is lines a-1 and a-2.
The line a-1 is represented by line information of the line a-1-1, and the line a-2 is represented by line information of the lines a-2-1 and a-2-2. Area 11-2 includes lines a and c, and line a
Is composed of lines a-1 and a-2, and line a-2 is
2-1 and a-2-2, and line c is line a-1,
a-2-1 is represented by line information. Area 11
-3 includes lines b and c, and line c includes lines a-1, a
-2-1, and the line a-1 is represented by line information consisting of the line a-1-1.

Monitoring device 1 for each of areas 11-1 to 11-3
In 2-1 to 12-3, the above-mentioned line information is held in the line information holding unit 17, and is transferred to another monitoring device via the transfer control unit 15. Therefore, each of the monitoring devices 12-1 to 12-3
5A, based on the line information of the self-monitoring device and the line information from the other monitoring devices, configure the line information of the network and hold it in the line information holding unit 17 as shown in FIG. Can be.

FIG. 5B shows line information obtained by adding an area number to the line information shown in FIG. 5A. For example, a line a indicates connection between areas 11-1 and 11-2, a line b indicates connection between areas 11-1 and 11-3, and a line c indicates area 11-2. , 11-3. The line a-1 is connected to the area 11-
1, 11-2 and 11-3 are connected, and a line a-2 indicates connection between the areas 11-1 and 11-2.

FIG. 6 is a diagram for explaining the determination of the main cause of the line failure according to the embodiment of the present invention.
When the line failure of the lines a-1-1, a-2-1, and a-2-2 is detected, the layered line information held in the line information holding unit 17 is referred to, and the failure occurs. It is possible to determine that the main cause is the line a having a higher hierarchy among the lines that are connected.

In the monitoring device 12-2 in the area 11-2, the lines a-2-1 and a-2-2 and the lines a-1 and a-1
Since the line failure of the line a-2-1 is detected, and the lines a-1 and a-2-1 of the line c correspond to the lines a-1 and a-2-1 of the line a, It can be determined that the line a is the main cause.

In the monitoring device 12-3 in the area 11-3, the line faults of the lines a-1-1 and a-2-1 are detected, and the line a-2-1 and the line a-2-1 are detected. It is determined that the main cause is the line a-1 on the layer a-1-1.

The determination result of each main cause is transferred between the monitoring devices 12-1 to 12-3.
As shown in FIG. 6, in each of the areas 11-1 to 11-3, the line a or the lines a-1, a-2-1 is determined to be the main cause. a
Can be determined to be the main cause. Then, due to the failure of the line a, the lines a, a-1, a-1-1, a-
2, a-2-1 and a-2-2 are affected.

When the line a-2 fails, the monitoring device 12-1 in the area 11-1 does not cause a failure in the line a-1. The monitoring device 12-2 in the area 11-2 determines that there is
The line a-2 is determined to be the main cause due to the failure of the line a-2 of the line c and the line a-2-1 of the line c.
The third monitoring device 12-3 determines that the line a-2 is the main cause due to the failure of the line a-2-1 of the line c. Accordingly, by transferring the determination result of the main cause of each of the monitoring devices 12-1 to 12-3, each of the monitoring devices 12-1 to 12-
3 can determine that the line a-2 is the main cause of the line failure.

Further, connection change or addition of lines in each of the areas 11-1 to 11-3, or areas 11-1 to 11-3
Communication may be temporarily interrupted due to line work such as a change in connection between lines. In that case, it is necessary to perform processing separately from the actual line failure. For this purpose, the schedule of the line operation, for example, the scheduled time and the line are registered in the monitoring device in the area where the line operation is performed, and transferred to another monitoring device.

Monitoring device 1 for each of areas 11-1 to 11-3
2-1 to 12-3 perform processing such as determining the main cause of the line failure when the line failure is detected and the line work scheduled time is determined to be the line failure of the line to be worked based on the contents of the advance notice. Omitted. That is, it is possible to mask an alarm due to a previously scheduled line operation.

When the number of areas is large, the amount of transfer information between the monitoring devices for performing the schedule notification increases, so that the schedule notification can be performed only to the monitoring devices in the area affected by the line work. . In that case, it may not be easy to estimate the range affected by the line operation. Or
Generally, it is desired to reduce the amount of information transferred between monitoring devices.

In this case, when the result of the determination of the main cause due to the detection of the line failure caused by the line operation is transferred to another monitoring apparatus without notifying the schedule, information indicating the line operation is included in the determination result. It can be added and transferred. The monitoring device that has received and identified this information can omit the process of determining the main cause of the line failure. That is,
Alarms due to line work can be masked.

When the main cause determination results in the monitoring devices 12-1 to 12-3 of the areas 11-1 to 11-3 are mutually transferred, if the number of areas becomes very large, the transfer information amount becomes large. Increases with the number of areas. Therefore, based on the line information shown in, for example, FIG. 5B held in the line information holding unit 17, the range affected by the line failure is determined, and the determination result is transferred only to the affected range. Can be.

For example, when the monitoring apparatuses 12-1 and 12-3 in the areas 11-1 and 11-3 determine that the line b is the main cause of the line failure, the result of the determination is as follows. It is not transferred to the second monitoring device 12-2. Similarly, in the case where the communication is cut off due to the operation of the line b in the area 11-1 or the area 11-3, the area 11-2 is not affected by this, so that the monitoring device 12 in the area 11-2 is not affected. For -2, the schedule notification or the main cause determination result is not transferred, so that the amount of transfer information and the processing load can be reduced.

Although the above-described embodiment shows a case where the number of areas is three, the present invention can be similarly applied to a case where the number of areas is more than three. Various formats can be applied. It is also possible to control transfer of line information and the like to other plural monitoring devices by simultaneous broadcast communication or the like. In addition, the monitoring device can be designated to transfer the result of determining the main cause.

[0037]

As described above, according to the present invention, the monitoring devices 2-1 to 2-n are provided for each of the areas 1-1 to 1-n.
In the distributed monitoring system that monitors each area, the monitoring devices 2-1 to 2-n store the line information of the monitored area in a hierarchical manner, transfer the line information to another monitoring device,
It grasps the line connection relationship between the area monitored by the self-monitoring device and the area monitored by the other monitoring device, and determines the main cause of the line failure. Since the main cause determination result from the line fault occurrence area can be received in the area where the line fault spreads, the main cause of the line fault can be easily determined even in a large-scale network. Therefore, there is an advantage that distributed monitoring in a large-scale network in which a plurality of networks having different management entities by a plurality of communication carriers and the like are interconnected can be easily performed.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an explanatory diagram of an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a line connection relationship and a line fault influence;

FIG. 4 is an explanatory diagram of line information according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram of line information of a network according to the embodiment of this invention.

FIG. 6 is an explanatory diagram of determining a main cause of a line failure according to the embodiment of this invention.

FIG. 7 is an explanatory diagram of main cause determination in a network according to an embodiment of the present invention.

FIG. 8 is an explanatory diagram of a conventional centralized monitoring system.

FIG. 9 is an explanatory diagram of a centralized monitoring system provided with a conventional child monitoring device.

FIG. 10 is an explanatory diagram of a conventional distributed monitoring system.

[Explanation of symbols]

 1-1 to 1-n area 2-1 to 2-n monitoring device 3 nodes

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 3/22 H04M 3/00

Claims (5)

(57) [Claims] 1. A distributed monitoring system in which an independent monitoring device is provided for each of a plurality of areas constituting a large-scale network and performs monitoring, wherein the monitoring device includes hierarchical line information of an area to be monitored.
And the line under monitoring of the self-monitoring device and the monitoring of other monitoring devices
A line information holding unit for holding a connection relationship with the line,
Connecting the monitoring devices to each other
A transfer control unit for transferring the determination result, and holding the line information.
Receiving the line information held in the transfer unit and the transfer control unit.
Line failure based on the judgment result from the other monitoring device
The upper layer line among the lines where the error has occurred is determined to be the main cause.
A distributed monitoring system comprising: 2. The monitoring device according to claim 1, wherein each of the monitoring devices includes an upper layer of a line having a line failure detected by the monitoring device .
The line is determined to be the main cause, the determination result is transferred to another monitoring device, and the other monitoring device determines whether the transferred determination result is
The result of the determination of the main cause in the visual device and the hierarchical
Based on the line information,
2. The distributed monitoring system according to claim 1, further comprising a configuration for determining an upper layer line as a main cause . 3. The self- monitoring device according to claim 1, wherein said monitoring device is a self- monitoring device equivalent to a line failure.
Circuit operation with line connection under the supervision of the visual device
When predicting the occurrence of a line fault, notify the other monitoring device of the predicted line fault occurrence, and detect the line fault in its own monitoring device.
2. The distributed monitoring system according to claim 1, further comprising a configuration for performing an alarm mask for preventing an alarm from being generated . 4. The monitoring device according to claim 1, wherein the monitoring device is under the control of its own monitoring device.
When a line failure occurs due to line work involving line connection work ,
Transfers the main cause of the determination result of the line failure to another monitoring device, according to claim 1, characterized in that it comprises an arrangement for transferring by adding information indicating that the line failure caused by line work Distributed processing system. 5. The system according to claim 1, wherein the monitoring device is configured to perform hierarchical line information.
Refer to the upper layer in the line where the line failure has occurred.
Is determined as the main cause, and the determination result is referred to as the line information.
The line under monitoring of the self-monitoring device held in the holding unit and other monitoring
Referring to the connection relationship with the line monitored by the viewing device,
Monitoring equipment for the area connected to the line with the line fault
2. The distributed processing system according to claim 1, further comprising a configuration for transferring data only to the storage device.