KR100495087B1 - Network Management System with Re-configuration Function of ATM Network - Google Patents

Abstract

The present invention relates to a network management system having an AMT network reconfiguration function, and inputs exchange and link and port information to be added and deleted, stores a result of a delete command based on the input deletion information, and inputs additional information. Saves the result of the additional command based on the information, compares the deletion information with the additional information, generates a list file for the connection in the exchange, and executes the setting command to establish or release the connection in the exchange period based on the list file.

The present invention does not require the pre-design for rerouting the ATM dedicated line, if the ATM network management system (ATM NMS) operators set how the network equipment is changed during the path reconfiguration process of the leased line Therefore, the design cost at the time of network reconfiguration is reduced, and the work time is quick and easy.

Description

Network Management System with Re-configuration Function of ATM Network

The present invention relates to a network management system, and more particularly, to a network management system having an AMT network reconfiguration function that enables the network to automate reconfiguration when an exchange is inserted or added to an Asynchronous Transfer Mode (ATM) network. will be.

Network reconfiguration in the network ranges from simply adding or replacing subscriber ports to complex tasks such as insertion and removal of exchanges. This is typically done in the shortest amount of time by network technicians to design work in advance and use nights to minimize service disruption to existing workers.

In particular, the ATM communication network that provides the ATM leased line service has to reconfigure the contents of the leased line according to the physical network reconfiguration, and the design of the work is complicated and the route must be changed using the operator terminal of the exchange. This route change has to be done manually, which takes a long time for large reconstruction work. Moreover, the network management by the ATM network management system is possible only when the ATM network management system recognizes the reconstructed contents. Therefore, after the work is completed, the ATM network management system must retrieve the leased line information from the exchange and change the registered management information. There is a complicated problem.

Accordingly, the present invention has been proposed to solve the above-mentioned problems. When the switch, link, and port information of the reconfiguration work section are inputted, the ATM network reconfiguration function capable of automatically reconfiguring the dedicated circuit path of the changed exchange period is provided. It is an object to provide a network management system having.

According to a feature of the present invention proposed to achieve the above object, a network management system having an AMT network reconfiguration function, if added to or removed from the ATM network, the added and deleted exchanges and links And receiving the port information, performing a delete command based on the input delete information, storing the processed delete information in a delete database, performing an additional command based on the input additional information, and then processing the additional information. Store in an additional database, compare the deletion information stored in the deletion database with the additional information stored in the additional database, generate a list file for the connection in the exchange, and establish a connection in the exchange period based on the generated list file. And performing a setting command to be released.

In a preferred embodiment of this aspect, the setting command is performed when the physical addition or deletion of the exchange is completed.

In a preferred embodiment of this aspect, the list file generation may include a disconnection command between the first exchange and the second exchange period when the N exchange is added to the first exchange and the second exchange. Input connection release information so as to be performed, input connection establishment information so that the connection establishment instruction is performed in the first exchange period and the Nth exchange period, and connection establishment information so that the connection establishment instruction is performed in the Nth exchange period and the second exchange period. Characterized in that the input.

In a preferred embodiment of this aspect, the list file generation is performed when the first exchanger, the Nth exchanger, and the second exchanger delete the Nth exchanger in a one-to-one connection. Input disconnection information to perform a disconnection command at the second exchanger, input disconnection information to perform the disconnection order at the Nth exchange period and the second exchange period, and perform a connection establishment command at the first exchange period and the second exchange period. Characterized in that to input the connection setting information.

In a preferred embodiment of this aspect, the list file generation is performed when the connection establishment command is performed during the Nth exchange period with the first exchanger when the Nth exchanger is added to the first exchanger connected one-to-one with the second exchanger. Characterized in that to input the connection setting information.

In a preferred embodiment of this aspect, the catalog file generation is connected to the first exchanger and the Nth exchange period when the Nth exchanger is deleted from the second exchanger and the Nth exchanger connected one-to-two with the first exchanger. Characterized in that the disconnection information is input so that the release command is performed.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4.

1 is a diagram schematically illustrating a connection relationship between an exchange network of an ATM network and a network management system according to an exemplary embodiment of the present invention. Reference numeral 100 denotes an ATM network, 110 to 170 switchboards, and 200 denotes a network management system.

As shown in the figure, the third exchanger 130 is connected with the first exchanger 100 and the second exchanger 120. The fourth exchanger 140 is connected to the fifth to seventh exchangers 150 to 170, respectively. The third and fourth exchangers 130 and 140 are connected to each other.

In addition, the first to seventh exchangers are connected to the network management system 200.

When the dedicated lines pass through the switch 110 to 170, CTP (Connection Termination Point) management information is present in each port. In such management information, which VPI / VCI has the dedicated line in the corresponding port. It also records what bandwidth and services are being provided.

In addition, management information called cross-connection (XC) exists between the CTPs of both ports of the exchange, and such management information expresses the exchange of a dedicated line in the exchange.

On the other hand, in the network management system 200, management information called LC (Link Connection) which shows the whole path | route of each dedicated line in the form of what is called end-to-end exists.

Table 1 shows details of a file for recording LC (Link Connection) management information managed by the network management system 200.

[Table 1] LC management information

VP Conn.ID Exchange ID / Port ID / VPI / VCI … Exchange ID / Port ID / VPI / VCI VC Conn.ID Exchange ID / Port ID / VPI / VCI … Exchange ID / Port ID / VPI / VCI VC Conn.ID Exchange ID / Port ID / VPI / VCI … Exchange ID / Port ID / VPI / VCI VP Conn.ID Exchange ID / Port ID / VPI / VCI … Exchange ID / Port ID / VPI / VCI VC Conn.ID Exchange ID / Port ID / VPI / VCI … Exchange ID / Port ID / VPI / VCI

Here, the first column indicates whether the VP connection or the VC connection. The Conn. ID of the second column represents the number of the dedicated line held by the ATM network management system 200.

In each row shown in Table 1, LC information is displayed in pairs for each input / output port of the exchange through which the corresponding dedicated line passes.

FIG. 2 is a flowchart illustrating a network reconfiguration procedure by the network management system illustrated in FIG. 1 in detail.

First, the exchange and link and port information to be deleted are inputted in the reconfiguration work section, or the exchange and link and port information to be added are input (S110).

Then, the network management system 200 deletes the leased line based on the input switch and link and port information to be deleted by executing the leased line information deleting command. At this time, the network management system 200 removes the deleted dedicated line information from the master database and registers in a separate deletion database (S120).

Subsequently, the network management system 200 adds the leased line based on the switch to be added and link and port information inputted by executing the leased line information adding command. At this time, the network management system 200 registers the added dedicated line information to a separate additional database (S130).

When the deletion database is generated by the delete command and the additional database is generated by the add command as described above, the network management system 200 compares the delete database with the additional database and connects the exchange within the exchange to be deleted or added (created) for each exchange. Create a list file for (S140).

The configuration of the list file is as shown in Table 2.

Table 2 List of connections in the exchange

R Exchange ID / Port ID / VPI / VCI Exchange ID / Port ID / VPI / VCI R Exchange ID / Port ID / VPI / VCI Exchange ID / Port ID / VPI / VCI R Exchange ID / Port ID / VPI / VCI Exchange ID / Port ID / VPI / VCI S Exchange ID / Port ID / VPI / VCI Exchange ID / Port ID / VPI / VCI S Exchange ID / Port ID / VPI / VCI Exchange ID / Port ID / VPI / VCI S Exchange ID / Port ID / VPI / VCI Exchange ID / Port ID / VPI / VCI

Here, R in the first column represents a release and S represents a setup.

Finally, the network management system 200 performs a disconnection command or a connection establishment command of the exchange according to the connection details generated as shown in Table 2 above. That is, when the value of the first column is R, the connection release command is performed for each port of the exchange of the corresponding row, and when S, the connection establishment command is performed (S150).

In this way, all reconfigurations are performed according to the insertion or deletion of the exchange in the ATM network.

3A is a view illustrating an example of an operation of inserting an exchanger in FIG. 1.

Here, an example in which one exchanger 135 is inserted between the third exchanger 130 and the fourth exchanger 140 connected in a one-to-one manner is illustrated.

When the operation of inserting such a switch is started, the network management system 120 transmits information R such that a disconnect command of the connection LC between the third switch 130 and the fourth switch 140 may be performed in the connection list file. Add).

For example, the network management system 120 adds the information S so that a connection establishment command can be performed between the third exchange 130 and the exchange 135 to be inserted, and the Nth exchange 135 to be inserted. Information (S) is added so that a connection establishment command can be performed between the CX and the fourth switch 140.

Figure 3b is a view showing another example of the exchange insert operation in FIG.

Here, a case where the N-th exchanger 180 is newly inserted into the fourth exchanger 140 connected one-to-one with the seventh exchanger 170 is illustrated.

In this case, the LC is not changed between the fourth exchanger 140 and the seventh exchanger 170. Meanwhile, information S is added between the fourth exchanger 140 and the inserted Nth exchanger 180 so that a connection establishment command can be performed.

Figure 4a is a view showing an example of the exchanger demolition work in FIG.

Here, the case where the Nth exchanger is removed from among the third exchanger 130, the Nth exchanger 135, and the fourth exchanger 140 connected 1: 1: 1 is shown.

In this case, information R is added between the third exchanger 130 and the Nth exchanger 135 so that a disconnect command of the connection LC can be performed. Subsequently, the network management system 200 adds the information R such that the disconnect command of the connection LC can be performed between the Nth exchanger 135 and the fourth exchanger 140.

Subsequently, the network management system 200 adds information S so that a connection establishment command can be performed between the third switch 130 and the fourth switch 140.

Figure 4b is a view showing another example of the exchanger demolition work in FIG.

Here, the case where the Nth exchanger 180 is removed from among the fourth exchanger 140, the seventh exchanger 170, and the Nth exchanger 180 connected 1: 2 is described.

In this case, the information R is added between the fourth exchanger 140 and the Nth exchanger 180 so that a disconnect command of the connection LC can be performed.

The present invention eliminates the need for preliminary design for rerouting an ATM leased line, and the ATM NMS operator only needs to set how the network equipment is changed during the route reconfiguration of the leased line, thereby reducing the design cost during network reconfiguration.

In addition, the present invention solves the problem of time-consuming and cumbersome work because the switch operator must search the switch through the ATM network management system after completing the setting work as a terminal.

1 is a diagram schematically illustrating a connection relationship between an exchange network of an ATM network and a network management system according to an exemplary embodiment of the present invention.

FIG. 2 is a flowchart detailing a network reconfiguration procedure by the network management system shown in FIG.

Figure 3a is a view showing an example of the exchange insert operation in Figure 1;

Figure 3b is a view showing another example of the exchange insert operation in Figure 1;

Figure 4a is a view showing an example of the exchanger demolition work in Figure 1;

Figure 4b is a view showing another example of the exchanger demolition work in Figure 1;

<Description of Symbols for Main Parts of Drawings>

100: ATM network 110-170: switchboard

200: network management system

Claims (6)

In a network management system connected to an exchange connected to an ATM network, In case of adding or deleting a switch to the ATM network, input the switch and link and port information to be added and deleted, After executing a delete command based on the input deletion information, the processed deletion information is stored in a deletion database, After executing the additional command based on the additional information entered, the processed additional information is stored in the additional database, Comparing the deletion information stored in the deletion database with the additional information stored in the additional database to generate a list file for the connection in the exchange, And an ATM communication network reconfiguration function for performing a setup command to establish or release a connection in an exchange period based on the generated list file. The method of claim 1, And performing the setting command is initiated when the physical addition or deletion of the exchange is completed. The method of claim 1, The list file generation may include disconnection information so that a disconnect command is performed between the first exchange and the second exchange period when the N exchange is added to the first exchange and the second exchange. Inputting the connection setting information so that the connection setting command is performed in the first exchange period and the Nth exchange period; And a connection establishment information for inputting a connection establishment command during the second exchange period and the Nth exchange period. The method of claim 1, The list file generation is performed such that when the first exchanger, the Nth exchanger, and the second exchanger delete the Nth exchanger in a 1: 1: 1 connection, a disconnection command is performed during the Nth exchange period with the first exchanger. Enter your information, Input disconnection information so that a disconnect command is performed between the Nth exchanger and the second exchange period; And a connection establishment information for inputting a connection establishment command during the first exchange and the second exchange period. The method of claim 1, The list file generation is characterized in that when the N-th exchanger is added to the first exchanger connected 1: 1 with the second exchanger, the connection setup information is inputted so that a connection setup instruction is performed during the N-th exchange period with the first exchanger. A network management system having an AMT network reconfiguration function. The method of claim 1, The list file is generated when the N exchange is deleted from the second exchange and the N exchange that are connected 1: 2 with the first exchange. A network management system having an AT network reconstruction function, characterized in that the input.