JP2000216779A - Transfer system for management system data in data communication network - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer system for management system data having a function for relieving load with respect to a network of the management system data. SOLUTION: In a data communication network where a plurality of communication units (network elements) are interconnected by a network and a manager managing the network is provided, management system data to be transferred from communications equipment to the manager are temporarily stored in the communication unit, compressed and transferred, and the management system data consist of fault occurrence data and configuration state change data. When the number of these data within a prescribed sampling time are a prescribed number or larger, the data are compressed and the compressed data are transferred to the manager, after the lapse of a prescribed time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transferring management data from a communication device to a manager for managing the communication network in a communication network to which a plurality of communication devices (network elements) are connected.

[0002]

2. Description of the Related Art In a data communication network, a plurality of communication devices (network elements) are connected via a network, and the state management of the entire communication device is performed by a manager that manages the communication network. Conventionally, when an alarm occurs on each communication device,
Or, when a change occurs in the configuration state, such management data is generated when an alarm is generated or when it is necessary to transfer the data from the alarm management unit or the configuration management unit of the communication device that has detected the occurrence of the change in the configuration state. They were individually transferred to the manager.

[0003]

However, in the conventional method of transferring the management data one by one each time, a large number of failures occur in a plurality of communication devices or a large amount of changes in the configuration state occur. In such a case, when a plurality of network elements attempt to transfer management data, the load of a DCN (Data Communication Network) becomes heavy, and in some cases, there is a problem that a congestion state occurs. I needed to.

The present invention has been made in view of such a background, and an object of the present invention is to provide a management data transfer method having a function of reducing a load of management data on a network.

[0005]

According to a first aspect of the present invention, there is provided a data communication network in which a plurality of communication devices (network elements) are connected via a network and a manager for managing the network is provided. Management system data transferred from a communication device to the manager is temporarily stored in the communication device, compressed and transferred, and provided as a management data transfer method.

According to a second aspect of the present invention, there is provided the management data transfer method according to the first aspect, wherein the management data is fault occurrence data and configuration state change data.

According to a third aspect of the present invention, when the number of data items within a predetermined sampling time is equal to or greater than a predetermined value, the failure occurrence data or the configuration state change data is subjected to data compression. 3. The method according to claim 1, wherein the data is transferred to the manager.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a data communication network according to an embodiment of the present invention. In this figure, reference numeral 1 denotes a manager for managing a communication network, which is connected to a DCN (Data Communication Network) 2 which plays a role of an information transfer network, and which is a plurality of management targets of the manager 1 connected to this DCN. A communication device (network element) 3.

Next, the components of each communication device (network element) 3 will be described. The alarm management unit 31 mainly detects a failure of the communication device (network element) 3. The configuration management unit 32 mainly monitors and controls the state of the communication device (network element) 3. The data storage unit 33 includes the alarm management unit 31
Alternatively, the management data collected by the configuration management unit 32 is temporarily stored. The data compressing section 34 collectively compresses the management data temporarily stored in the data storing section 33. The communication unit 35 performs a protocol process for communicating with the manager 1 via the DCN 2.

In the embodiment of the present invention, the components added to the manager 1 are a data decompression unit 12 for decompressing the compressed data and a data storage unit 13 for temporarily storing the decompressed data. Further, the manager 1 includes a communication unit 11 provided in a general manager and a manager function unit 14.

Next, the operation of this embodiment will be described in detail with reference to the flowcharts of FIGS. FIG.
FIG. 9 is a flowchart illustrating an operation when a failure occurs in a communication device (network element) 3 as a first operation example. Step S11 (hereinafter, referred to as S11 etc.)
In, a fault that has occurred in the communication device (network element) 3 is detected by the alarm management unit 31. The alarm management unit 31 sends the detected management data of the occurrence of the failure to the data storage unit 33 for transfer to the manager 1 (S13). The data storage unit 33 temporarily stores the management data in an alarm management area.

The data storage unit 33 stores the alarm for L seconds (S14), and sends the management data of the alarm area stored after L seconds to the data compression unit 34 (S15). The data compression unit 34 compresses the data according to a predetermined algorithm, and transfers the compressed management data to the manager 1 via the communication unit 35 and the DCN 2. The condition under which the data accumulation unit 33 accumulates an alarm for L seconds is as follows.
It is assumed that more than one error occurred. According to the storage conditions, when a failure occurs intensively in a certain unit time, a management data transfer method using storage and compression, which is a feature of the present invention, is executed.

On the other hand, if the number of alarms generated in N seconds is less than M, the data storage unit 33 is not temporarily placed in the alarm management area, but is immediately transferred to the data compression unit 34 (S15). Transfers the uncompressed management data to the manager 1 via the communication unit 35 and the DCN 2 without compressing the data (S18).

Next, as a second operation example, an operation in the case where the configuration state changes in the communication device (network element) 3 will be described with reference to the flowchart of FIG.
The configuration change that has occurred in the network element 3 is detected by the configuration management unit 32 (S21). The configuration management unit 32 sends the management data of the occurrence of the configuration change to the data storage unit 33 for transfer to the manager, and temporarily stores the data in the configuration management area (S22).

The data storage unit 33 stores the configuration change information for X minutes (S23), and sends the management data of the configuration management area stored after X minutes to the data compression unit 34 (S2).
4). When the transmitted management data is stored data, the data compression unit 34 compresses the data by a predetermined algorithm, and transfers the compressed management data to the manager 1 via the communication unit 35 and the DCN 2. (S25, S26). The condition under which the data storage unit stores the configuration change information for X minutes is unconditional.

On the other hand, the operation of the manager 1 of FIG. 1 is the same as the first and second operation examples shown in FIGS. 2 and 3 described above. First, the communication unit 11 terminates a communication protocol and determines whether or not the data is compressed by the data decompression unit 12. If the data is compressed, decompression is performed by the same algorithm as the compressed algorithm. I do. The decompressed management data is stored in the data storage unit 13.
And passed to the manager function unit 14 one item at a time.

In the case of uncompressed data, the data decompression unit 12 passes the management data directly to the data storage unit 13, and the data storage unit 13 passes the data to the manager function unit 14. The manager function unit 14 is a part for realizing the operation of a general manager, and is not directly related to the present invention.

The operation of one embodiment of the present invention has been described above in detail with reference to the drawings. However, the present invention is not limited to this embodiment, and a design change or the like may be made without departing from the gist of the present invention. The present invention is also included in the present invention.

For example, in the embodiment of the present invention, the case of the failure of the network element and the configuration function has been described. However, the present invention can be applied to other functions of the network element. Examples of other functions include functions such as performance management and state management. Further, in the first operation example, the conditions for data accumulation are L seconds, N seconds, and M, and in the second operation example, X minutes are used as the condition parameter. However, this condition parameter is an example. Further, in this description, the information inside the network element is used as the condition parameter. However, a condition outside the network element, for example, the number of packets in a certain time of the DCN may be used as the condition parameter.

[0020]

As described above, the present invention has the following effects. The first effect is that the load on the management network, that is, the DCN can be reduced by realizing the storage transfer method as compared with the individual transfer method. This is because processing such as routing is performed in the DCN, and the processing by the DCN is reduced when packets are transmitted in a certain size and appropriately sized, rather than when a large number of small packets are transmitted.

The second effect is that, as shown in the first operation example, when information is generated in a timely manner, L,
Since the means for making the size of the packet appropriate by providing the parameters of M and N is provided, the first effect can be realized more reliably. Here, the case where information is generated in a timely manner means that in the case of a communication device, information is generally prepared in a redundant manner, and such a situation often occurs. It is.

A third effect is that, in the network management using the manager, the configuration of the failure example of the first operation example, which is the information of high importance, and the configuration of the second operation example, which is the information of low importance, By changing the storage time and storage conditions in examples of changes, the manager can have a change in the time at which management data arrives, and a mechanism has been provided to reduce the transfer delay time of important management data. It is.

A fourth effect is that when the stored management data is transferred, the management data is compressed, so that the amount of transfer data can be reduced and the load on the DCN can be reduced. . In addition, since many compression algorithms are disclosed, the compression function can be easily realized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a management data transfer method according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation when a failure occurs in a communication device (network element).

FIG. 3 is a flowchart illustrating an operation when a configuration state changes in a communication device (network element).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Manager 2 ... DCN (Data Communication Network) 3 ... Communication device (network element) 11 ... Communication part 12 ... Data decompression part 13 ... Data storage part 14 ... Manager function part 31 ... Alarm management part 32 ... Configuration management part 33 ... Data storage unit 34 Data compression unit 35 Communication unit

Claims (3)

[Claims] 1. In a data communication network in which a plurality of communication devices (network elements) are connected via a network and a manager for managing the network is provided, management data transferred from the communication device to the manager is: A management data transfer method, wherein the data is temporarily stored in the communication device, and is compressed and transferred. 2. The management data transfer method according to claim 1, wherein the management data is fault occurrence data and configuration state change data. 3. The method according to claim 1, wherein the fault occurrence data or the configuration state change data is subjected to data compression when the number of data within a predetermined sampling time is equal to or more than a predetermined value, and transferred to the manager after a predetermined time has elapsed. Claim 1.
Or the method of transferring management data described in 2.