KR100243677B1 - Method for displaying error of connection management in atm - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a connection management related error display method.

2. The technical problem to be solved by the invention

The present invention accurately grasps the location and cause of an error that occurs when performing a connection management function by a mobile communication management network (TMN) of an asynchronous transfer mode (ATM) switching system, and makes the inherent error cause of the switching system transparent to the operator. The purpose of this paper is to provide a connection management related error display method that improves the management efficiency of the operator.

3. Summary of Solution to Invention

The present invention includes a first step of extending a standard management object to transparently transmit a unique error according to an error classification scheme according to a location and a cause of an error; A second step of receiving a connection management related command from an operator; A third step of classifying a system according to an error cause generated when performing a connection management function and performing a self-test in the divided system; And a fourth step of notifying an operator of the test results of the divided system according to the cause of the error.

4. Important uses of the invention

The present invention is used for error searching and the like.

Description

How to display error related to connection management in asynchronous transfer mode switching system

According to the present invention, if an error occurs when performing an Asynchronous Transfer Mode (ATM) switching system connection management function by a Telecommunications Management Network (TMN), the location and cause of the error may be accurately understood to identify the location and the cause. The present invention relates to a connection management related error display method that improves the management efficiency of an operator by transmitting the information to the operator transparently.

In general, the TMN expresses and uses the resources of the exchange system to be managed as managed objects.

In the past, the error cause in the Common Management Information Protocol (CMIP) was not very helpful to the operator, and there was a limit in transferring the error cause between the Manager and the Agent by a standard management object. However, it was not possible to insert and transmit the unique error of the exchange system into the management object.

Therefore, when an operator requests connection management related commands, these commands can be connected via the graphical user interface (GUI) system to connectors for managers, agents, agents, and exchange subsystems. Connector for Agent and Switch Subsystem) and the exchange system to check the status of the system, and the result is returned to the operator through the reverse process.

In this case, when an error occurs, the conventional error display method may not accurately identify the system in which the error has occurred or the cause of the error, and may not transmit a unique error of the switching system to the TMN operator transparently.

The present invention has been made to solve the problems described above, accurately determine the location and cause of the error occurred when performing the connection management function by the communication management network (TMN) of the asynchronous transfer mode (ATM) switching system, The purpose of the present invention is to provide a connection management related error display method that improves the management efficiency of the operator by transparently transmitting the inherent error cause of the switching system to the operator.

1 is a configuration diagram showing an example of an interlocking system to which the present invention is applied.

2 is a flowchart illustrating a connection management related error display method according to the present invention;

* Explanation of symbols for the main parts of the drawings

11: Manager system

12: Agent system

13: Asynchronous transfer mode (ATM) exchange system

In the present invention for achieving the above object, in the connection management related error display method in the asynchronous delivery mode switching system, the standard management to transparently transmit the unique error according to the error classification scheme according to the location and cause of the generated error Expanding the object; A second step of receiving a connection management related command from an operator; A third step of classifying a system according to an error cause generated when performing a connection management function and performing a self-test in the divided system; And a fourth step of notifying an operator of the test results of the divided system according to the cause of the error.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention;

1 is a configuration diagram showing an example of an interworking system to which the present invention is applied and shows an interworking relationship between a manager system 11 and an agent system 12 for managing an ATM switching system.

The manager system 11 present in the workstation 1 for the manager system includes a manager main block 111, a connection management block 112, and an open systems interconnection (OSI) for information transmission. ) Protocol stack 113.

The agent system 12 mounted on the agent system workstation 2 includes a network element agent subsystem (NEAS) 121 and an ATM switching system 13 for performing management messages from an administrator. Management Information Base (MIB) 122, which represents a resource as a Managed Object, and a Connector for Agent and Exchange Subsystem that connects to the ATM Switching System 13 (CASS: Connector for Agent and Switch Subsystem 123, and an OSI protocol stack 124 for transmitting information.

The OSI protocol stack for the management message transmission consists of seven layers. From the top, the application layer, the presentation layer, the session layer, the transport layer, the network layer, and the network layer Layer), Data Link Layer (Data Link Layer), and Physical Layer (Physical Layer).

On the other hand, the command of the TMN operator is transmitted between the manager system 11 and the agent system 12 to the ATM switching system 13 using the Common Management Information Protocol (CMIP) of the application layer. At this time, the data transmission between the manager system 11 and the agent system 12 physically uses a data communication network (DCN).

The error location and the method of transparently transmitting the cause are applied between the GUI system, the Manager, the Agent, and the CASS 123 managing the ATM switching system 13.

In order to implement such a method, the location of the error must be determined, and it can be divided into the small and medium classification system according to the cause, and the unique error of the exchange system should be transparently transmitted to the operator through the extension of the standard management object. Therefore, the large classification of errors is classified according to the management function of TMN, the middle classification of errors is classified according to the system, and the small classification of errors is classified according to the cause of the error.

Table 1 shows the classification system as described above.

1xxx Configuration error 2xxx Connection management error 3xxx Fault management error 4xxx Zen management error 5xxx Charge Management Error

Table 1 above is a major classification of errors according to the TMN management function. Here, the error used is a connection management error of the 2000s. If these errors are classified again by the error generating system, and classified by the cause, they are shown in Tables 2a to 2c.

First, a manager error code 21xx indicating a manager error for each error generating system is shown in Table 2a.

2101 Agent down 2102 Agent Initializing 2103 Wating For Agent Reconnect 2110 Not In Configuration

Here, the error code 2101 is an error related to the connection management function, and is an error indication that the agent is down when a command is sent from the manager to the agent.

The connection management related error (2100) occurred in the manager in the middle category should be shared between the GUI system and the manager that match the TMN operator to the manager.

Subsequently, the agent error code 22xx representing the agent error for each error generating system is shown in Table 2b.

2201 UNI / NNI Administratively Locked 2202 UNI / NNI Operationally Disabled 2203 VPI Used (Originating Side) 2204 VPI Used (Terminating Side) 2205 VCI Used (Originating Side) 2206 VCI Used (Terminating Side) 2207 Lack Of Bandwidth (Originating Side) 2208 Lack Of Bandwidth (Terminating Side)

Here, an error occurring in the agent (2200) should be shared between the GUI system, the administrator, and the agent.

Subsequently, an exchange system error code 23xx representing an exchange system error for each error generating system will be described in Table 2c.

2301 No Response From Destination CCCP 2302 Not Equipped Destination CCCP 2303 No ResponseFrom IMC 2304 Falure Of Routing Information Update 2305 Not Available INI / UNI / NNI 2306 Failure Of DB Access 2307 Lack Of Bandwidth Of Switch Link 2308 Not Equipped Switch Link 2309 Not Found Matched Link 2310 Over IMI Link Connection Limit 2311 Lack Of Bandwidth On IMI Link 2312 Lack Of Bandwitch On UNI / NNI Link 2313 Over UNI / NNI Link Connection Limit 2315 Already Registered Connection 2316 Not Registred Connection 2317 Not Established Connection 2318 Already Active Connection 2319 MMC Blocked Connection 2320 Fault Marked Connection 2321 No Need For Bandwidth Modification 2322 No need for time modification 2323 Falure Of Timer Registration 2324 Directionality mismatched

Here, the error code 2306 is an error related to the connection management function, indicating that an error has occurred while accessing its own database DB while executing an instruction in the ATM switching system 13.

Errors (at 2300) that occur in the ATM switching system 13 must be shared between the GUI system, the manager, the agent, and the CASS 123.

For example, the "DB access error" generated in the ATM switching system 13 classifies it as an error code 2306 in the CASS 123 and sends it to the agent, and the agent loads it on the CMIP and sends it to the manager, which is again a GUI. Converted to characters on the system and displayed to the operator as "DB access error".

In order to transparently transmit errors of the TMN manager, agent, and ATM switching system 13 to the operator, the definition of the management object and the abstract syntax notation (ASN) should be defined.

Since the error codes described in Table 1 and Tables 2a to 2c cannot be transmitted transparently on the existing management object definition, a new error parameter must be defined. That is, in the definition of the management object to reflect the cause of the connection management related error in the ATM switching system 13, the resource specific error parameter (resourceErrorParameter) is defined as a parameter, and the abstraction for reflecting the cause of the connection management related error in the ATM switching system 13 is reflected. In syntax notation (ASN), "ENUMERATED" is defined so that 4-digit error codes are transmitted transparently between the manager and the agent.

On the other hand, the management object definition to reflect the cause of the connection management related error in the ATM switching system 13 extends four management objects (atmCrossConnectionMETA, atmFabricMETA, vpCTPBidirectionalMETA, and vcCTPBidirectionalMETA), T: Telecommunication part of International Telecommunication Union (Telecommunications Standards) Standard Recommendation I.751 extends to four managed objects (ie atmCrossConnection, atmFabric, vpCTPBidirectional and vcCTPBidirectional).

The atmCrossConnectionMETA is a managed object whose activation / deactivation of an established connection is performed to change the value of the administrative state attribute. In addition, by adding a resource-specific error parameter (resourceErrorParameter) to such a management object, an error generated in the ATM switching system 13 can be loaded when the attribute value is changed.

The atmFabricMETA is a managed object that establishes and releases a connection, and uses an ACTION of a connect and a disconnect, respectively. In addition, a resource specific error parameter (resourceErrorParameter) can be added to such a management object.

The bidirectional virtual path connection endpoint (vpCTPBidirectionalMETA) and the bidirectional virtual channel connection endpoint (vcCTPBidirectionalMETA) managed objects can increase or decrease the bandwidth of an already established connection by changing the "egressPeakCellRate" and "ingressPeakCellRate" attribute values. In addition, a resource specific error parameter (resourceErrorParameter) can be added to such a management object.

The error parameters as described above can be transmitted transparently from the agent to the manager and the GUI system without any special conversion process by extending the standard management object in addition to the management object corresponding to each function.

2 is a flowchart illustrating a method for displaying a connection management related error according to the present invention.

Referring to the procedure for performing the connection management related error display method according to a preferred embodiment of the present invention.

First, when a TMN operator issues a connection management function-related command, the Manager determines whether it conforms to its own configuration and sends an error generated in case of inconsistency to the operator, and if appropriate, to the agent. Pass the command.

Then, the agent receives the connection management related command from the administrator to check the status of the link to be connected, and whether the type of the link is a user network interface (UNI) or a network node interface (NNI). By checking and performing the conditions and band check accordingly, the possibility of connection establishment is checked before the actual command is issued to the ATM switching system 13.

If a nonconformity decision is made during the inspection process, the generated error is sent to the administrator along with the cause for output to the operator.

On the other hand, if the determination of conformity in the inspection process, the corresponding command is transmitted to the ATM switching system (13).

Finally, the ATM switching system 13 transmits the error cause generated when an error occurs due to a resource problem or the like to the manager to be output to the operator.

Looking at the connection management related error display method according to the present invention as described above in more detail as follows.

First, when a connection management related command is received from the operator through the GUI system (201), the manager receiving the command performs a related check on whether the agent is normal and whether the connection management command fits the shape. (202).

As a result of the inspection, if the self-inspection fails, it assembles its own error code (2100) and transmits it to the GUI system (203), and the GUI system receiving the error code outputs an output statement according to the error code to the operator (211). Quit.

As a result of the check, if successful, it is assembled into a CMIP command and transmitted to the agent (204).

Thereafter, the agent receiving the command checks whether the connection state and link state are normal according to the connection management command type, and asks for the virtual path identifier and the virtual channel identifier (VPI / VCI). And checks whether the band is sufficient (205).

As a result of the inspection, if the self inspection fails, the controller assembles its own error code (2200) and transmits it to the administrator, and the administrator who receives the error code from the agent transparently transmits the agent's error code to the GUI system (206). At this time, the GUI system receiving the error code outputs the output statement according to the error code to the operator (211) and ends.

As a result of the check, if the self test is successful, the command is transmitted to the ATM switching system 13 through the CASS 123 (207).

Next, the ATM switching system 13 that receives the command determines whether the function execution is successful (208).

As a result of determination, when the execution result of the ATM switching system 13 fails, the CASS 123 assembles an error code of the ATM switching system 13 and transmits it to an agent, and receives the error code of the ATM switching system 13. The agent transmits to the manager, and the manager who receives the error code transparently transmits the error code of the ATM switching system 13 to the GUI system (209). At this time, the GUI system receiving the error code outputs the output statement according to the error code to the operator (211) and ends.

As a result of determination, if the execution result of the ATM switching system 13 is successful, the CASS 123 transmits the success result to the agent, the agent to the manager, the manager to the GUI system, and the GUI system to the operator. After the result is sent (210) it ends.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

According to the present invention as described above, it is possible to confirm the location of the error occurred when performing the connection management function, to transmit the unique error of the exchange system to the operator transparently, the operator can accurately identify the error location and the cause of the occurrence Therefore, there is an effect that can cope quickly when an error occurs.

Claims (5)

A method for displaying a connection management related error in an asynchronous delivery mode switching system, A first step of extending a standard management object to transparently transmit a unique error according to an error classification scheme according to a location and a cause of an error; A second step of receiving a connection management related command from an operator; A third step of classifying a system according to an error cause generated when performing a connection management function and performing a self-test in the divided system; And A fourth step of notifying the operator of the test results of the classified system according to the cause of the error Connection management related error display method made, including. The method of claim 1, The error classification system of the first step is Connection management-related error display method, characterized in that it consists of a large classification according to the management function of the communication management network (TMN), a middle classification according to the divided system, and a small classification according to the cause of the error. The method of claim 2, The management object extended from the standard management object of the first step, To reflect the cause of connection management related errors, define managed objects as asynchronous propagation mode cross connection (atmCrossConnectionMETA), asynchronous propagation mode fabric (atmFabricMETA), bidirectional virtual path connection endpoint (vpCTPBidirectionalMETA), and bidirectional virtual channel connection endpoint (vcCTPBidirectionalMETA). And adding a resource specific error parameter defined in the management object. The method according to claim 1 or 3, The third step, A fifth step of the administrator receiving the command to determine whether the agent is normal and whether the connection management command of the operator fits in shape; A sixth step of assembling the error code of the manager and transmitting the error code to a graphical user interface (GUI) system when the inspection fails as a result of the determination in the fifth step; A seventh step of assembling a common management information protocol (CMIP) command and transmitting the command to the agent when the inspection is successful as a result of the determination in the fifth step; An eighth step of determining, by the agent, whether the connection state and the link state are normal, the virtual path identifier and the virtual channel identifier (VPI / VCI) being used, and whether the bandwidth is sufficient according to the connection management command type; A ninth step of assembling the error code of the agent and transmitting the error code to the graphical user interface (GUI) system transparently through the manager if the inspection fails. A tenth step of transmitting a command to the asynchronous delivery mode switching system through a connector if the inspection is successful as a result of the determination in the eighth step; An eleventh step of determining whether function execution is successful in the asynchronous delivery mode switching system; And As a result of the determination of the eleventh step, when the function execution fails, the twelfth step of assembling the error code in the connector and transparently transmitting the error code to the graphical user interface (GUI) system through the agent and the manager. Connection management related error display method made, including. The method of claim 4, wherein The fourth step, A thirteenth step of notifying an operator of the success result through the agent, the manager, and the graphical user interface system in the connector when the function execution is successful; And A fourteenth step of displaying an output statement according to an error code of the manager, the agent, and the asynchronous transfer mode switching system in the graphical user interface (GUI) system; Connection management related error display method made, including.

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