JPH1051450A - System and method for network management - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lighten the burden on an administrator by dividing constitution information on a node into blocks in proper administration units, retrieving necessary alteration detailed information according to the number of a block where altered information is present, and providing it to the administrator. SOLUTION: When the constitution of the node 11 is altered, alteration outline information including the altered block number is sent to a network administration device 100. A display device 120 displays the alteration position of the altered constitution information and informs the network administrator of the alteration position. To know more detailed information, the network administrator specifies and requests the alteration position by using an input device 140 and then the network administration device 100 generates and sends a command requesting the gathering of alteration detailed information to the node 11. The node 11 retrieves the block number, and edits and sends the alteration detailed information which is stored inside to the network administration device 100, so that the information is displayed on a display device 120.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a configuration of a network management system for a communication network including a plurality of communication nodes for performing communication and a method for managing the communication network. The present invention relates to a configuration of a network management system suitable for managing the configuration of each communication node and a management method thereof.

[0002]

2. Description of the Related Art In a conventional communication network comprising a plurality of communication nodes, each communication node is provided with a maintenance terminal for changing the node configuration, and a network management device is provided for each of all communication nodes accommodated in the communication network. In a network management system of a communication network configured to manage all the configuration of each communication node changed by the maintenance terminal,
As described in JP-A-6-350602, when a maintenance terminal changes the configuration of a communication node, the node does not immediately notify the network management device of all the detailed information on the change, The network management device is notified of information indicating the occurrence of the error and the general contents of the change, and the network management device notifies the network administrator by displaying the notified information on a display device such as a display device. Then, when the network administrator learns that the configuration of a certain node has been changed and wants to obtain more detailed information on the change,
The network manager directly accesses a node whose configuration has been changed from the network management device, and further changes the node (for example, a newly installed package or a register for setting various states inside the package). , Etc.), the detailed change information obtained by the network management device is displayed after collecting information on the detailed change from the node by performing an access operation.

[0003]

In the above conventional technique, in order to collect the detailed information of the changed configuration information, the administrator of the network management apparatus recognizes the changed part of the changed node and then recognizes the changed part. However, it is necessary to perform a complicated operation such as acquiring detailed information on the changed portion, which places a burden on the administrator. As an example, if the network administrator does not collect detailed information for a long time and the amount of change information increases, it is necessary to perform operations on all changed parts to collect all change detailed information, Many operations were required from the request for collecting the detailed information of all the changed parts to the display of these detailed information.

According to the present invention, when the configuration information of a node is changed by a maintenance terminal, the burden of the operation of the administrator of the network management apparatus is reduced when collecting the detailed change information, and the detailed change information is reliably collected. A network management system and a network management method that can be realized and provided with a simple configuration.

[0005]

In order to achieve the above object, in a network management system according to the present invention, a communication node for performing a plurality of communications, and a maintenance terminal arranged at each of the communication nodes for changing the configuration of the communication node are provided. In a network management system that manages a communication network in which a network management device that manages the configuration of a plurality of communication nodes is connected to a network, when the configuration information is changed from the maintenance terminal to each of the communication nodes, Means for calculating first information indicating an outline, first control means for determining whether or not to store the first information in the storage means in the node, and storing the first information in the network management device. Means for notifying, and second information to be notified based on the first information from the configuration information stored in the storage means when second information indicating detailed information of the change of the configuration information is requested from the network management device. information A second control unit for transmitting the first information and a third control unit for deleting the first information from the storage unit after the transmission of the second information, wherein the first information and the second information are provided in the network management system. Communication control means for receiving the information and transmitting the second information request signal, operation means for inputting an instruction from the operator, means for generating a request signal based on the instruction input from the operation means, and Means for storing in the second storage means the same information as the configuration information of the node based on the second information; and means for storing the first information after storing the information in the second storage means. Means for deleting the information stored in the storage means, and display means for displaying the information stored in the first storage means and the second storage means, wherein the operator is provided with the first information displayed on the display means. Recognize that the configuration of the node has changed And managing the information relating to the node configuration change in a plurality of layers, such as requesting the node for the second information, storing the information in the second storage means, and displaying the information on the display means, by dividing the information into a plurality of layers. A network management system for transmitting and receiving data to and from the network.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a network management system and a network management method according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a network configuration diagram showing a configuration of a communication network and a network management device to which a network management system according to the present invention is applied. The communication network is a network in which a plurality of nodes 11 to 14 to be managed and a network management device 100 are interconnected by a network 50. Each of the nodes 11 to 14 includes:
Maintenance terminals 21 to 24 for changing the configuration information of the nodes are connected. Then, the network management device 100
Is a communication control device 110 that enables transmission and reception of information with each of the nodes 11 to 14, a display device 120 that displays information received from the nodes 11 to 14, and stores the received information in the display device 120. The storage device 130 includes an input device 140 for inputting information to be transmitted to the node. FIG. 2 is a network configuration diagram showing another configuration of a communication network to which the network management system according to the present invention is applied. As shown in the figure, the network management system of the present invention
Plurality of nodes 11 to 14 and network management device 100
May be connected in series by the transmission line 51.

FIG. 3 is an explanatory diagram for explaining the configuration of the node configuration information in each node and the accommodating method.
FIG. 2 is a diagram illustrating a configuration and an accommodation method with an example of how to hold configuration information of FIG. As will be described later in detail with reference to FIG. 5, the configuration information 211 accommodated in the node 11 can be easily managed by the administrator of the network management apparatus, and the summary information of the change from the node to the network management apparatus and the details of the change In order to easily transmit information, the information is blocked in appropriate management units according to the configuration of the communication network and the nodes to be accommodated. All the blocks have unique numbers (block numbers). The block number indicating the block in which the information changed by the maintenance terminal 21 exists becomes the change summary information handled by the network management system according to the present invention, and the detailed information in the block becomes the change detailed information.

The node 11 has a changed part file 221
And storage device 31 for storing change detailed information file 231
The change site file 221 sequentially stores change summary information, that is, block numbers, and the change detailed information file 231 stores information on the blocks. FIG. 3 shows that, when the configuration information of the block number 7 is changed, the block number 7 is stored in the changed part file 221.

FIG. 4 is a block diagram showing a detailed configuration of the storage device 130 provided in the network management device 100. The configuration will be described by taking as an example a case where the configuration information of the node 11 is managed by the network management device 100. The storage device 130 in the network management device 100
Is composed of a configuration information copy file 311 and a changed part copy file 321, stores the same information as the configuration information of the node 11 in the configuration information copy file 311. When the configuration information is changed in the node 11, Changed information indicating whether or not a change has occurred (the same information as the information stored in the changed part file 221 of the node 11)
Is stored in the changed part copy file 321.

FIG. 5 is an information configuration diagram showing the configuration of the configuration information of a blocked node, taking the node 11 as an example. In the present embodiment, the configuration information of the node 11 is roughly classified into node information 1, module information 2, package information 3, port information 4, and route information 5, and the five roughly classified information is described below. Divided into blocks.

(1) The node information 1 includes a station name data block 1-1 including a station name, a time adjustment data block 1-2 including a time adjustment condition, and the like.

(2) The module information 2 includes a module type data block 2-1 including a module type and the like.

(3) The package information 3 includes a package type data block 3-1 including a package type and the like.

(4) The port information 4 includes an extension data block 4-1 including an extension number and a transmission restriction class, and a low-speed terminal data block 4-2 including a communication speed, an asynchronous character size, an asynchronous stop bit, and the like. And so on.

(5) The route information 5 includes a trunk route registration data block 5-1 containing a trunk type and the like, a band data block 5-2 containing trunk line band information, and the like.

The module type data block 2-1
When there are a plurality of blocks of the same type as described above, a module number (a unique number for specifying a module) is further assigned to each block as an index for specifying these blocks. Similarly, in the case of the package type data block 3-1, the slot number (unique number specifying the package position) is used, and in the case of the extension data block or the low-speed terminal data block, the port number (unique number specifying the port) is used. However, in the case of a trunk route registration data block and a band data block, the configuration is such that a route number (a unique number specifying a route) is assigned to each block as an index. Then, a unique block number as shown in FIG. 3 is assigned to each block to manage the node configuration.

FIG. 6 is an information structure diagram for explaining the contents (definitions and information transition conditions) of the change summary information managed for each block. The change summary information used in the network management system and the network management method of the present invention can be used for network management if the information stored in each node and the information stored in the network management device do not match each other. In this embodiment, the contents to be stored are defined as 0: match with the network management device, and 1: not match with the network management device. Then, when the maintenance terminal changes the block in the state of 0, the state transitions to 1. This indicates that the information of this block has become inconsistent with the network management device. When the information of the block in the state of 1 is collected by the network management device, the state transits to 0. As a result, the information of this block is indicated to be in agreement with the network management device.

Hereinafter, the operation of the network management system and the network management method according to the present invention will be described with reference to the accompanying drawings. Specifically, an operation in a case where the maintenance terminal 21 changes the configuration information of the node 11 by one place in the communication network having the configuration illustrated in FIG. 1 will be described.

FIG. 7 is an operation sequence diagram showing the operation of the network management system and the network management method according to the present invention. The maintenance terminal 21 changes the configuration information of the node 11 (FIG. 7-
1) and the node 11 calculates the number of the changed block based on the block configuration information of the node shown in FIG. 5 as the change summary information on the changed configuration information (FIG. 7B). .

It is checked whether the block number calculated this time exists in the changed part file 221 (FIG. 7C). If the calculated block number is not stored in the changed part file 221, the calculated block number is used. Node 1
1 in the changed part file 221 (FIG. 7-
4). Then, for the network management device 100,
Change summary information (TRAP) for changed configuration information
Is notified (FIG. 7-5).

[0021] The network management device 100
1 to the communication control device 110, the change summary information (TRAP)
Is received (FIG. 7-6), the changed part copy file 321 in the storage device 130 is updated with this change summary information (FIG. 7-7).

The display device 120 displays the changed position of the changed configuration information using the updated changed part copy file 321 (FIG. 7-8). It is possible to recognize that the position has been changed by looking at the position and to recognize the changed portion (FIGS. 7-9).

When the network administrator wants to know more detailed information on the node 11 on the display device 120 where the change summary information has been generated, the network manager uses the input device 140 in the network management device to input the detailed change information. Perform the requested operation (Fig. 7-10).

When the network administrator performs an operation for requesting the detailed change information, the network management apparatus 100 issues a command (FTP-GET) requesting collection of the detailed change information to the node 11 (FIG. 7-11). ).

The node 11 that has received the FTP-GET from the network management device 100 as a change detailed information collection request also stores the change summary information stored in the changed part file 31 in the node 11, that is, the block number of the configuration information. At the same time, information to be notified to the network management apparatus 100 is extracted from the change detailed information file 231 (see FIG. 7-1).
2) Delete all the data of the changed part file 31 in the node 11 (FIG. 7-13). Then, FT, which is a collection request of change detailed information from the network management apparatus 100,
As a response to the P-GET, the information of the extracted change detailed information file 231 is transmitted to the network management apparatus 100 (FIG. 7-14).

The network management apparatus 100, which has received the change detailed information file as a response to the FTP-GET which is a change detailed information collection request from the node 11, deletes all information of the changed part copy file 321 (FIG. 7-).
15). The display device 120 clears the display of the changed position of the changed configuration information by the deleted changed part copy file 321 (FIG. 7-16). Further, the network management device 100 updates the configuration information copy file 311 in the storage device 130 with the change detailed information file (FIG. 7-17). Then, the display device 120 displays the changed content of the changed configuration information using the updated configuration information copy file 311 (FIG. 7-18). The network administrator can recognize the change by viewing the change displayed on the display device 120 (FIG. 7).
-19).

FIG. 8 is an operation flowchart showing a detailed procedure for updating the change detailed information (updating the configuration information copy file) in the network management apparatus 100, and requests the node 11 for the change detailed information. The information of the received change detailed information file 231 is updated in a procedure as shown in FIG.

FIG. 9 is an operation sequence diagram showing another operation of the network management system of the present invention.
1 illustrates an operation when a plurality of blocks having different configuration information are changed at a plurality of locations.

Compared with the case where the configuration of the node shown in FIG. 7 is changed by one place, the sequence is the same in FIGS. 9-1 to 9, but apart from this, the maintenance terminal 21 of the node 11 is the first place. The configuration information is changed (the second change) for a block different from the block changed in (FIG. 9-).
1 ′), the node 11 calculates a block number as change summary information about the newly changed configuration information (FIG. 9B ′).

It is checked whether the block number calculated this time exists in the changed part file 221 (FIG. 9-3 ').
In the present change, a case where a block different from the previous change is changed is taken as an example. Therefore, the block number calculated in the same manner as the previous change is stored in the changed part file 221 in the node 11 (FIG. 9-4 '). Then, the node 11 notifies the network management device 100 of the change summary information on the changed configuration information (FIG. 9-5 ').

[0031] The network management device 100
1 through the communication control device 110 (FIG. 9-6 '), similarly to the case of receiving the change summary information by the previous configuration change, the changed part in the storage device 130 is changed according to the received change summary information. The copy file 321 is updated (FIG. 9-7 '). Then, the display device 120 displays the changed position of the changed configuration information by the updated changed part copy file 321 (FIG. 9-8 ').
The network administrator can see the change position displayed on the display device 120 and recognize that there has been a change in another place and recognize the changed part (FIG. 9-9 ').

Thereafter, when the maintenance terminal 21 changes the configuration information of the node 11 at a plurality of locations, the steps shown in FIGS.

The network administrator determines the node 11 where the plurality of change summary information displayed on the display device 120 has occurred.
When the user wants to know more detailed information, the user selects the node 11 from the input device 140 in the network management device and performs a request operation for change detailed information (FIG. 9-10).
The operation procedure is the same as in FIGS.

FIG. 10 is an operation sequence diagram showing another operation of the network management system according to the present invention. The operation sequence in the case where the maintenance terminal 21 changes the same block of the configuration information of the node 11 twice is described. It is shown.

Compared to the case where the configuration of the node described with reference to FIG. 7 is changed at one place, the sequence shown in FIGS. 10-1 to 9 becomes the same, but the same block as the block changed at the first place is used. When the maintenance terminal 21 changes the configuration information (change at the second location) (FIG. 10-1 ′), the node 11 calculates the block number as change summary information on the changed configuration information (FIG. 10). -2 ').

It is checked whether the block number calculated this time exists in the changed part file 221 (FIG. 10-).
3 '). In this change, since the same block as the previous block is changed, the node 11 does not store the calculated block number in the changed part file 221 in the node 11 (FIG. 1).
0-4 '). The subsequent sequence is the same as in FIGS.

[0037]

As described above, according to the configuration information management method of the present invention, the network administrator can change the detailed information in one operation without depending on the number of locations where the configuration information has been changed. Can be collected, and the burden on the network administrator can be reduced. That is, for example, when the configuration information is changed over 10 blocks, the information collection operation has to be performed ten times to obtain the detailed change information. According to this, only one operation is required.

Further, since the control sequence of the node and the network management device is reduced to collect all the detailed change information, the collection processing time is shortened to collect all the detailed change information. Therefore, there is an effect that the time from when the network administrator displays the change detailed information until when it is displayed is reduced. Specifically, when performing a collection operation of detailed information in the network management device, the time required for the node to receive a request for change detailed information is 1 second, and one block of information is transmitted from the node to the network management device. If the communication network takes 1 second to transfer the data and 1 second to store the information of one block changed by the network management device, the configuration information has been changed over 10 blocks. Since 10 operations were required to collect the change detailed information of (1 + 1)
+1) × 10 = 30 seconds were required. However, according to the present invention, since only one operation is required, (1+
1) × 10 = 21 seconds.

[Brief description of the drawings]

FIG. 1 is a network configuration diagram showing a configuration of a communication network to which a network management system according to the present invention is applied.

FIG. 2 is a network configuration diagram showing the configuration of another communication network.

FIG. 3 is an explanatory diagram illustrating a configuration of a configuration information of a node and an accommodating method.

FIG. 4 is a block diagram showing a detailed configuration of a storage device of the network management device.

FIG. 5 is an information configuration diagram showing a configuration of configuration information of a node which has been similarly blocked.

FIG. 6 is an information configuration diagram for explaining the contents of change summary information.

FIG. 7 is an operation sequence diagram showing the operation of the network management system and the network management method.

FIG. 8 is an operation flowchart showing a procedure of updating a configuration information copy file.

FIG. 9 is an operation sequence diagram showing another operation of the network management system of the present invention.

FIG. 10 is an operation sequence diagram showing another operation of the network management system of the present invention.

[Brief description of reference numerals]

11-14... Nodes, 21-24.
Maintenance terminal, 100 ... network management device, 1
10 ... communication control device, 120 ... display device,
130 ... storage device, 140 ... input device, 21
1 ... configuration information, 221 ... changed part file, 311 ... configuration information copy file,
321, a changed part copy file.

Claims (3)

[Claims] 1. A network comprising: a communication node for performing a plurality of communications; a maintenance terminal arranged at each of the communication nodes for changing the configuration of the communication node; and a network management device for managing the configuration of the plurality of communication nodes. A network management system that manages a communication network connected by: a means for calculating, when each of the communication nodes changes configuration information from the maintenance terminal, first information indicating an outline of the change; First control means for judging whether to store the first information in the storage means in the node and storing the first information;
Means for notifying the information to the network management apparatus, and when the second information indicating detailed information of the change of the configuration information is requested from the network management apparatus, the information is stored from the configuration information stored in the storage means. A second control unit that generates and transmits second information to be notified based on the first information stored in the unit, and a second control unit that deletes the first information from the storage unit after transmitting the second information. 3. A network management system, comprising: a control unit of (3), wherein information related to the configuration change of the node is managed in a plurality of layers and transmitted / received to / from the network management device. 2. A communication control means for receiving the first information and the second information and transmitting the second information request signal to the network management system, an operation means for inputting an operator's instruction, Means for generating the request signal in accordance with an instruction input from the operation means, means for storing the first information in the first storage means, and the same as the configuration information of the node based on the second information Means for storing information in the second storage means, means for deleting the information stored in the first storage means after storing the information in the second storage means, and means for storing the information in the first storage means and the second storage means. Display means for displaying information stored in the storage means, and when the operator recognizes that a change has occurred in the configuration of the node with the first information displayed on the display means, 2
2. The network management system according to claim 1, wherein said information is requested and stored in said second storage means and displayed on said display means. 3. A network comprising: a communication node for performing a plurality of communications; a maintenance terminal disposed at each of the communication nodes for changing a configuration of the communication node; and a network management device for managing the configuration of the plurality of communication nodes. A network management method for a network management system for managing a communication network connected by the method, wherein when the configuration information of the node is changed from the maintenance terminal, first information indicating an outline of the change is calculated. A step of transmitting to the network management device, storing the first information in a storage unit in the node, storing the first information in the first storage unit of the network management device, and displaying the first information on a display device Notifying the maintenance person of the change, and generating and transmitting a signal requesting second information indicating detailed information of the change of the configuration information to the node in which the change has occurred based on the instruction of the maintenance person. -Up and the request signal to the to be notified from the configuration information stored in the storage means based second
Generating and transmitting the information, storing the second information in the second storage means of the network management device and displaying the second information on a display device to notify a maintenance person of the change, and Deleting the first information after the first transmission stored in the storage unit of the management device.