JPH089030A - Operation management system for network management equipment - Google Patents

Abstract

PURPOSE:To obtain the operation management system for the network management equipment in which the presence of a fault of component devices is inquired accurately in a short time between each exchange and each network management equipment. CONSTITUTION:A fault state monitor section 16 of each of 1st-3rd exchanges 11-13 monitors a fault state of component devices and sends a message to a network management equipment 31 on the occurrence of a fault and its restoration. When a fault takes place again in the exchanges 11-13, the network management equipment 31 retrieves components in which a fault takes place based on the recording of the presence of a fault stored in a fault state data section 33 and inquires of a concerned exchange about a present state. Then the storage content of the fault state data section 33 is updated by the reply content in response to the inquiry so as to make the state of the exchanges 11-13 in matching with the state grasped by the network management equipment 31. Since only the component devices having a fault is inquired about, the state matching is attained in a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation management system equipped with a switching device and a network management device for managing a fault condition of the constituent devices, and more specifically, to an operation management system when the switching device is restarted. The present invention relates to an operation management system for a network management device, which allows the network management device side to match the failure state.

[0002]

2. Description of the Related Art When a failure occurs in a switching device, it is necessary to collect and analyze failure information at that time. Japanese Patent Laid-Open No. 4-
According to Japanese Patent Laid-Open No. 280551 and Japanese Patent Laid-Open No. 61-72496, data at the time of a failure, which is held in a main storage device, is stored in a disk device. Further, in JP-A-60-12849, the data at the time of failure, which is also held in the main storage device, is stored and recorded in a specific address area which is not destroyed except for the initial setting at power-on.

[0003] On the other hand, from the viewpoint of unified management of fault conditions of a plurality of exchanges, a network management device for managing each of the exchanges is arranged, and this is used to grasp the fault status. That is being done. Since the occurrence of faults on the switching equipment side and their recovery vary with time, it is necessary for the network management device to accurately grasp the fault status of each switching equipment. Conventionally, in order to perform such a state adjustment, when the corresponding switching device restarts, all the components in the switching device are inquired about their fault states. For this reason, a large amount of time was required for such a state adjustment.

FIG. 3 shows an example of the configuration of a conventional operation management system for a network management device. This system includes first to third switching devices 11 to 13 and a network management device 14 for managing these fault states.

[0005] The first switching device 11 includes a failure status monitoring unit 16 for monitoring the failure status of the components in the own switching device. The failure state monitoring unit 16 monitors the failure state of the switch unit 17 and the first and second line accommodating units 18 and 19 arranged inside the first switching unit 11 for performing the line switching. When a failure occurs in any of these, or when its recovery is detected, the failure state monitoring unit 16 notifies the network management device 14 of a failure occurrence message or a failure recovery message. The second and third switching devices 12 and 13 have the same configuration as that of the first switching device 11 and similarly notify the network management device 14 of a failure occurrence message or a failure recovery message. However, illustration and description thereof are omitted.

The network management device 14 includes a failure state management unit 21.
And a failure status data section 22. The failure state management unit 21 receives a failure occurrence message or a failure recovery message from the first to third switching devices 11 to 13 and manages the failure state. The fault state data section 22 stores and manages fault states.

FIG. 4 shows an example of the data structure of the failure status data section. This example shows that the switch unit 17 of the first switching device 11 in FIG. 3 is “normal” and both the first and second line accommodation units 18 and 19 are “failure”. . Network management device 14
Also stores the current state of the failure state for the second and third switching devices 12 and 13, but illustration and description thereof are omitted here.

In such a conventional operation management system for a network management device, the state of the network management device is adjusted by using one of the following two methods. First, in the first method, the failure state before the restart of the exchange apparatus is taken over as it is and the state adjustment is performed. In the second method, the memory of the failure status of the corresponding switching device is cleared, and the switching device is inquired about the status of all the constituent devices to perform the status matching. These will be described in order. Note that the first exchange device 11
After the restart, the "failure" state of the first line accommodation unit 18 is restored and becomes "normal", while the state of the second line accommodation unit 19 is "failure". An example will be described in the case where it remains as it is.

First, a first method for carrying out the state adjustment by directly taking over the fault state before the restart of the exchange apparatus will be described. In this case, the failure status monitoring unit 16 of the first switching device 11 has the second status that is in the "failure" status after the restart.
The fault occurrence message of the line accommodation unit 19 of the network management device 1
4 Fault status management unit 21 of network management device 14
Receives the failure occurrence message of the second line accommodation unit 19 and sets the state of the second line accommodation unit 19 in the failure state data unit 22 to “failure”.

Next, a description will be given of a second method of clearing the storage of the faulty state of the relevant switching device and making a new inquiry about the status of all the constituent devices to the switching device to adjust the status. When the restart occurs in the first switching device 11, the failure status management unit 21 of the network management device 14 causes the switch unit 17 in the failure status data unit 22, which is a component device of the first switching device 11, and the first and second switching devices 11. The state of the line accommodating units 18 and 19 is cleared. Then, it sends a request signal to the first switching device 11 to inquire about the failure status of the switch unit 17 and the first and second line accommodating units 18 and 19.

Upon receiving the request signal, the failure status monitoring unit 16 in the first switching device 11 indicates that the switch unit 17 is in the "normal" state, and the first line accommodation unit 18 is in the "normal" state. Yes, the second line accommodating portion 18 responds to the network management device 14 with a response signal indicating that the state is "fault".
Upon receiving the response signal, the fault status management unit 21 sets the status of the switch unit 17 of the fault status data unit 22 to “normal”, the status of the first line accommodating unit 18 to “normal”, and monitors the second fault status. The state of the unit 16 is set to “failure”. Through these operations, the actual state of the first switching device 11 and the state of the first switching device 11 managed in the network management device 14 match.

[0012]

First, the case where the state adjustment is performed by the first method in the operation management system of the conventional network management apparatus described above will be considered. Since the first line accommodating unit 18 has been restored to the “normal” state after being restarted in the “failure” state, it is not possible to detect the recovery from the failure. That is, the failure recovery message is not sent to the network management device 14. As a result, the "failure" state of the first line accommodating unit 18 remains on the network management device 14 side. When the first method is adopted in this way, there is a problem that a deviation occurs between the states of the first to third switching devices 11 to 13 and the monitoring state of the network management device 14 side.

Further, when the state adjustment is performed by the second method,
When restarting, it was necessary to inquire about the failure status of all the constituent devices of the corresponding exchange device, and it took a lot of time to adjust the status.

An object of the present invention is to provide an operation management system for a network management device which can accurately and quickly adjust the state of the presence or absence of a failure of a component between each switching device and the network management device. Is to do.

[0015]

According to a first aspect of the present invention, (a) message transmitting means for transmitting a message representing the failure of each constituent device and recovery of the failure, and a status of the failure. A plurality of switching devices provided with a response means for responding to the present status when the inquiries are made, and (b) storing the presence / absence of a failure in each component based on the messages sent from the plurality of switching devices. Storage means, retrieval means for retrieving a component device that is stored as having a fault in this storage means, inquiry means for inquiring the corresponding exchange device whether or not there is a fault in the retrieved component device, and a result of the inquiry is stored. A network management apparatus having a failure status matching means to be reflected in the means is provided in the operation management system of the network management apparatus.

That is, in the operation management system of the network management apparatus according to the first aspect, when the switching apparatus side sends a message representing these to the network management apparatus when a failure occurs in the component equipment and when the failure is restored, the network management apparatus is operated. When a device inquires about the failure status, the device responds to the inquiry. In the network management device, this response content is reflected in the storage content of the storage means to enable status adjustment. In addition, since the inquiry is made only for the component device that is stored as having a failure, such an inquiry is actually extremely small, and a lot of time is not required for the state adjustment.

According to the second aspect of the present invention, the search means in the network management device searches for a component device in a faulty state when the switching device is restarted, and the inquiry means makes an inquiry about this, so the status is obtained at a necessary timing. Matching becomes possible.

According to the third aspect of the present invention, the search means periodically searches for a component in a faulty state, and the inquiry means makes an inquiry based on the search result. You can do it.

In the fourth aspect of the present invention, the fault state matching means rewrites the contents of the storage means to the result of the inquiry when the result of the inquiry differs from the contents stored in the storage means. According to the fifth aspect of the invention, data indicating whether the constituent devices are normal or faulty is written in the storage means in a organized form for each exchange device.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments.

FIG. 1 shows an operation management system of a network management device according to an embodiment of the present invention. The same parts as those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted as appropriate. The system according to the present embodiment also includes first to third switching devices 11 to 13 and a network management device 31. The configurations of the first to third switching devices 11 to 13 are the same as those of the conventional device shown in FIG. The network management device 31 includes a failure state management unit 32 that manages a failure state and a failure state data unit 33 that holds a failure state. They are,
It has substantially the same functions as the fault status management unit 21 and fault status data unit 22 shown in FIG.

The network management device 31 newly includes a faulty device recollection unit 34 and a faulty device search unit 35. The faulty device search unit 35 stores the faulty component devices in the fault state data unit 3.
3 is used for searching. Further, the faulty device recollecting unit 34 is configured to inquire the faulty state of the device searched by the faulty device searching unit 35 to the exchange device of the other party. Such a network management device 31 includes, for example, a CPU (Central Processing Unit), a memory for storing a program for this control and a failure state, a communication control device for transmitting and receiving data, and input and display of data. And an input / output device for performing the above.

Also in the operation management system of this embodiment, the failure status data section 22 is based on the failure occurrence message or the failure recovery message received by the failure status management section 32, and all of the first to third switching apparatuses 11 to 13 are selected. The states of the constituent devices are stored in the fault state data section 33 and managed. The data configuration used for the management is assumed to be the same as that shown in FIG. Although only the components of the first exchange device 11 are shown in FIG. 4, the actual operation of the operation management system of the present embodiment will be described below by using the same components.

Assuming that the restart has occurred in the first switching device 11, the faulty device search unit 35 of the network management device 31 searches the fault status data unit 33 and finds the corresponding first switching device 11
In this example, it is known that the component devices that are obstructing are the first and second line accommodating units 18 and 19. Further, the faulty device recollection unit 34 uses the inquiry about the fault status of the line accommodating units 18 and 19 searched by the faulty device search unit 35 as a request signal to request the first switching device 11 to perform the inquiry.
Send to.

The first switching device 1 receiving this request signal
The first failure state monitoring unit 16 returns to the network management device 31 as a response signal that the state of the first line accommodation unit 18 is “normal” and the state of the second line accommodation unit 19 is “failure”. I do. Upon receiving this response signal, the fault state management unit 32
In response to this, the state of the first line accommodation unit 18 in the failure state data unit 33 is set to “normal” and the state of the second line accommodation unit 19 is changed to “normal”.
Set the state of to "Fault". As a result, the actual state of the first switching device 11 and the state of the first switching device 11 managed in the network management device 31 exactly match.

FIG. 2 shows the state of control on the side of such a network management device. This control is based on the aforementioned CP
U executes according to a predetermined program. First, when a restart occurs in the first switching device 11 as a corresponding switching device (step S101; Y), the faulty device search unit 35 searches the fault status data unit 33 (step S10).
2). As a result, when there is no component device having a "failure" in the corresponding storage area (step S103;
N), the process ends as it is (end).

On the other hand, when there is a "faulty" component device as in the example shown in FIG. 4 (Y), a request signal for inquiring about the faulty state is sent to the corresponding exchange. (Step S104). Then, it waits for a response signal to be sent from the exchange (step S105). When the response signal is sent, it is analyzed whether the corresponding component device remains “failed” or is restored to “normal” (step S106), and the corresponding storage area of the failure status data unit 33 is overwritten. Then, the contents are stored (step S107).

In the above-described embodiment, in order to simplify the explanation, the case where the components in the first switching unit 11 are the switch unit 17 and the first and second line accommodating units 18 and 19 are shown. However, it goes without saying that more constituent devices can be monitored for the failure state. In the embodiment, the case where both the first and second line accommodating units 18 and 19 are in the "failure" state is shown. Since the ratio of devices is very small, it is rare to send an inquiry about a fault status as a request signal to a corresponding switching device, and efficient status adjustment can be performed.

In this embodiment, the network management device 31 inquires the switching device about the current status of the component in the faulty state when the switching device is restarted. Then, the current state of the component devices in the failure state may be periodically inquired at a predetermined cycle.

[0030]

As described above, claims 1 to 5 are as follows.
According to the invention described above, the switching device sends messages indicating these to the network management device when a failure of a component device occurs and when the failure is recovered, while responding to the inquiry about the status of the failure from the network management device. In the network management device, the response content is reflected in the storage content of the storage means, so that accurate state matching can be performed. In addition, since the inquiry is made only for the component device that is stored as having a failure, such an inquiry is actually extremely small, and a lot of time is not required for the state adjustment.

According to the second aspect of the invention, when the switching device is restarted, the component device in the faulty state is searched and the inquiring means inquires about this, so that the state adjustment can be performed at a necessary timing. Become. Further, according to the third aspect of the present invention, since the constituent device in the failure state is periodically searched and the inquiry means makes an inquiry about this, there is an effect that the inquiry control is simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing an operation management system of a network management device in an embodiment of the present invention.

FIG. 2 is a flowchart showing an outline of control of the network management device of the present embodiment.

FIG. 3 is a block diagram showing an example of a configuration of an operation management system of a conventional network management device.

FIG. 4 is an explanatory diagram illustrating an example of a data configuration of a failure state data section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 1st switching apparatus 12 2nd switching apparatus 13 3rd switching apparatus 16 failure state monitoring part 31 network management apparatus 32 failure state management part 33 failure state data part 34 failure equipment recollection part 35 failure equipment search part

Claims (5)

[Claims] 1. A message sending means for sending a message representing these when a failure occurs in each constituent device and a recovery from the failure, and a response means for responding to the current status when the failure status is inquired. A plurality of switching devices, storage means for storing the presence / absence of a failure in each component based on the messages sent from the plurality of switching devices, and a configuration in which the storage means has a failure A network management device comprising a searching means for searching a device, an inquiring device for inquiring of a corresponding switching device whether or not there is a failure in the searched component device, and a failure state matching device for reflecting a result of the inquiry in the storage device. An operation management system for a network management device, comprising: 2. The retrieving means retrieves a component device in a failure state when the switching device is restarted, and the inquiring means inquires of the relevant switching device about the state of the component device stored as faulty based on this. The operation management system for a network management device according to claim 1. 3. The search means periodically searches for a component in a faulty state, and the inquiry means inquires the state of the component stored as faulty to a corresponding switching device based on the search. The operation management system for a network management device according to claim 1, wherein 4. The network management apparatus according to claim 1, wherein said fault condition matching means rewrites the contents of the storage means to the result of the inquiry when the result of the inquiry is different from the contents stored in the storage means. Operation management system. 5. The network management device according to claim 1, wherein the storage means is written with data representing whether the constituent devices of each switching device are normal or fail. Operation management system.