KR19980044286A - Method and device for monitoring TMN communication connection of synchronous optical transmission device - Google Patents

Abstract

The present invention relates to a method for monitoring communication connection connection with an agent of a device to be managed by a manager in a TMN management network for network management of a synchronous optical transmission device, wherein the connection monitoring unit in the manager processor includes the LCN monitoring unit of the manager and the agent 1; Collects failure status information through local connection monitoring unit and DCC channel monitoring unit of optical transmission device, and checks connection setting status with agent 1 and displays abnormal status of agent 1 connection and LCN according to LCN connection status. Agent linked status monitoring process; When the association setting state of the agent 1 is normal, the agent 2 association setting state is checked, and when abnormal, the agent 2 connection failure and the cause of the LCN failure or the local connection failure cause are displayed according to the LCN connection status and the DCC channel failure of the local connection. It is characterized by performing agent 2 link status monitoring.

Description

Method and apparatus for monitoring TMN communication connection of synchronous optical transmission device

In general, the transmission network management function of the synchronous optical transmission device is based on the TMN structure proposed in International Recommendation ITU-T Recommendation M.3010 as shown in FIG. 106 and 110 and the Q3 interface 113, the manager 100 performs a centralized management function of the synchronous transmission network.

The agent of the synchronous transmission device collects configuration / failure / performance management information of all the functional elements constituting the device and stores them according to the management object function definition or reports them to the manager. The manager is connected to an agent performing management agency function of each synchronous optical transmission device through Q3 interface, and various synchronous levels (STM-1, STM-4, STM-16, It performs network management function for various network configurations of SDH NE (Network Elements) for each STM-64.

The manager-agent connection configuration of such a synchronous optical transmission device is shown in FIG. 2.

The manager is connected at the network management application level through the Agent 1 and Q3 interfaces. Agent 2 is connected via Q3 interface and Agent 1 provides message routing 204 functionality at the network layer protocol level for message relay between them. The physical connection path between the manager and Regent 1 is configured through the local communication network (LCN).

The physical connection path between the manager 200 and the agent 2 in the remote office is connected to the local connection 206 and the optical line 218 between the LCN 205 in the local office, agent 1 202 and the monitoring control subsystem 208 of the local device. Message relay function control unit 209 between the DCC channel and the routing unit, the DCC channel and the message relay function control unit 215 and the local connection unit 213 in the remote station.

Under this communication connection configuration, the manager accesses the failure, performance and configuration information of the individual synchronous optical transmission devices or occurs on each device through agents in the local office and agents operating in the remote office connected through the local communication network. You should be notified of fault conditions and configuration changes in real time.

However, in such a connection configuration with various agents of the manager, when a failure occurs in each component constituting the connection path, in the case of LCN in a company, a connection failure occurs with a plurality of agents, and agents in other countries connected through optical lines When a failure occurs in some connection paths, such as a DCC channel, a local connection in another station, or a microprocessor control unit 216 of the supervisory control subsystems 208 and 215, a communication state becomes a cutoff state of transmission and reception of management information with the agent 211.

The conventional transmission network management technology has defined the transmission management network structure between the manager and the agent, defined management information exchanged between the manager and the agent, and defined a communication connection method for remotely transmitting and receiving the agent. It was required to find out the communication connection status with the system and to recover efficiently in case of failure.

Accordingly, the present invention is to provide a stable and reliable network management operation technology by deriving a connection failure factor between the manager and the agent and suggesting a rapid detection and recovery system thereof when a failure occurs.

In order to achieve the above object, the present invention provides a method for monitoring connection status with agents of a manager, the first step of confirming whether or not a function of establishing an association with an agent in a company: establishing an association according to the verification result of the first step If it is impossible, check the local communication network failure in the domestic company to check the status and repair the failure status. In case of the first step, if the connection establishment status with the agent in the domestic company is normal, set the connection setting with the agent in the other country. If it is abnormal by checking the status of the local connection and the DCC channel, if the failure occurs, it indicates the recovery request, and if the status of the local connection DCC channel is normal, it comprises a third step of indicating the establishment of the agent connection of the other country.

1 is a configuration diagram of TMN network management of a general synchronous optical transmission device

2 is a manager-agent connection configuration diagram of a general synchronous optical transmission device

3 is a structure diagram of connection monitoring processing of a synchronous optical transmission device according to the present invention;

4 is a flowchart for monitoring connection of a synchronous optical transmission device according to the present invention.

Explanation of symbols on the main parts of the drawings

300: manager 301: manager process

302: connection monitoring unit 303: local communication network (LCN) monitoring unit

304: LCN305: Q3 connection

306: Agent 307: CMIS Agent

308: managed object information base 309: local connection monitoring unit

310: optical transmission device 311: DCC channel monitoring unit

312 light path

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

3 is a block diagram of the connection monitoring process of the synchronous optical transmission device according to the present invention, 300 is a manager, 301 is a manager process, 302 is a link monitoring unit, 303 is a local communication network (LCN) monitoring unit, 304 is a local communication network, 305 Q3 is an interface, 306 is an agent, 307 is a CMIS agent, 308 is a management object information base, 309 is a local access monitoring unit, 310 is a synchronous optical transmission device, 311 is a DCC channel monitoring unit, and 312 is an optical path.

The manager process 301 performed by the manager 300 monitors the connection status between the agent in the domestic company 306 and the agent in the other country connected through the optical path 312 through the connection monitoring unit 303. The LCN monitoring unit 303 monitors the connection state between the manager 300 and the agent 306 through the LCN 304 and notifies the connection monitoring unit when a failure occurs. The local access monitoring unit 309 monitors the connection state between the agent 306 and the DCC channel monitoring unit 311 of the optical transmission device 310 and notifies the management object information base 308 when a failure occurs. The CMIS agent 307 reports the connection failure information of the management object information base to the manager process 301 through the Q3 305 connection. In addition, the local connection monitoring unit 309 checks the connection status with the agent in the other country through the optical line 312 through the DCC channel monitoring unit 311 and, when a connection failure occurs, the management object information base 308 and the CMIS agent Report to manager process via 307.

4 is a flowchart of a connection monitoring process of a synchronous optical transmission device according to the present invention.

The association monitoring unit 302 checks 400 an association setting state of the agent 306. As a result of the check, if it is impossible to establish the association, the LCN 304 determines whether or not the communication failure is performed according to the notification result of the LCN monitoring unit 303 (401). If the LCN connection is normal, the agent 1 connection failure is indicated (402) and the agent process failure is indicated (403) and requested to recover. If the LCN connection is abnormal, the agent 1 connection failure is indicated (404), the LCN connection failure is indicated (405) and requested to recover. After performing the LCN connection recovery check (406) and if it is restored to perform the procedure (400) to confirm the agent 1 connection establishment.

If the agent 1 association establishment check result is normal, the association establishment check with the agent 2 is performed (407). If the check result is abnormal, it is determined whether or not the LCN connection failure (408). When the LCN connection is normal, the local connection and the DCC channel failure status reported through the local access monitoring unit is checked (411). If the check result is normal, only agent 2 connection failure is displayed (414). If abnormal, the local low speed and DCC channel failure status (412) is requested to be repaired. Thereafter, the agent 2 connection establishment check is performed again (407).

As described above, the present invention relates to a manager connected by a synchronous transmission management network configured by a DCC channel, a local communication network (LCN), and a microprocessor controller of a device that performs a relay function therebetween, and agents performing a management agent function. In this paper, we propose the method of monitoring the connection status of the communication connection, which can be applied to the recovery process by monitoring the connection status with agents managed by the manager in the synchronous transmission network management structure that will be constructed later, and the indication of the failure factor when a failure occurs.

Accordingly, in the configuration of the present invention (see FIG. 3), the manager 300 operates the linkage monitoring unit 302 inside the manager process 301, and in order to detect a local communication network connection state with an agent in the office Communication network) the monitoring unit 303 is operated. In addition, the agent 306 connected to the manager and the local communication network operates a local access monitoring unit 309 therein to determine a connection state with the management agent optical transmission device 310 and reports the failure to the manager in real time when a failure occurs and recovery. . In addition, the local connection monitoring unit 309 collects the DCC channel connection state through the DCC channel monitoring unit 311 in the optical transmission device 310 to obtain communication connection status information with the agent in the other country, the failure occurrence and recovery This time is reported to the manager's linked monitoring unit 302 through the CMIS agent 307 and the management object information base 308 in the agent. The manager uses the fault status of the communication connections reported by each monitoring unit 302, 303, 309, and 311 operating in the agent, the optical transmission device, and whether the communication connection status between the agents performing the management function is normal. It requests the recovery to indicate the failure and displays it in case of failure, and then performs the verification process to perform normal recovery and operation status determination and display function.

Through the present invention, in the integrated management network operation of a synchronous transmission network that is established or will be constructed and operated in the future, the present invention provides a real-time grasp and recovery procedure of a communication connection connection state between a manager that is a management agent and an agent performing a management agent function. It has the effect of providing a concrete method that can systematically and generally apply the connection state management method between management network elements (manager, agent) that has not been technically considered in detail.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for monitoring connection status of agents of a synchronous optical transmission device and agents of a manager performing a network management function by maintaining a central communication connection state with them.

Claims (5)

In the communication connection monitoring method between the manager and the agent in the TMN management network of the synchronous optical transmission device, The link monitoring unit in the manager processor collects fault status information through the LCN monitoring unit of the manager, the local connection monitoring unit of the agent 1, and the DCC channel monitoring unit of the optical transmission device. An agent-one status monitoring process for checking an association setting state with the agent 1 and displaying an agent 1 connection and a failure state of the LCN according to the LCN connection state in case of abnormality; When the association setting state of the agent 1 is normal, the agent 2 association setting state is checked, and when abnormal, the agent 2 connection failure and the cause of the LCN failure or the local connection failure cause are displayed according to the LCN connection status and the DCC channel failure of the local connection. A method for monitoring the TMN communication connection of a synchronous optical transmission device, characterized in that the agent 2 connection status monitoring process is performed. According to claim 1, The agent 1 linked state monitoring process, A first step 400 of checking an association setting state with the agent 1 through an association monitoring unit of the manager; As a result of the check of the first step 400, if the connection setting with the agent 1 is abnormal, the LCN connection state monitoring result performed by the LCN monitoring unit is checked to indicate that the agent 1 connection failure is normal and the agent 1 process failure A second step (401, 402, 403) indicating a failure recovery request by indicating a; And As a result of the check of the second step 401, in case of abnormality, a third step (404, 405, 406) of displaying an agent 1 connection failure and indicating a failure recovery request by indicating an LCN failure after performing a recovery procedure for LCN failure TMN communication connection monitoring method of a synchronous optical transmission device comprising a. According to claim 1, Agent 2 linked state monitoring process, A fourth step (407) of checking an agent 2 association setting state when the association setting state with the agent 1 is normal; If the connection setting with the agent 2 is abnormal as a result of the check in the fourth step 407, the LCN connection state monitoring result performed and reported by the LCN monitoring unit is checked to indicate that the agent 2 connection failure is abnormal. A fifth step (408, 409, 410) of indicating a failure recovery request and confirming an LCN connection failure recovery by displaying a. And As a result of the check in the fourth step 407, if it is normal, it checks the result of monitoring the local access unit and the DCC channel failure monitoring performed by the local access monitoring unit, and if abnormal, displays the agent 2 connection failure and displays the local connection and DCC failure. A sixth step (411, 412, 413) informing of the failover request and confirming the local connection and the DCC failover; And As a result of the checking of the fifth step 411, after confirming the result of monitoring the local access unit and the DCC channel failure monitoring performed by the local access monitoring unit, the agent 2 connection failure is displayed if it is normal, and the agent 2 failure cause display and the request for recovery And a sixth step (411, 414, 415) of confirming agent 2 association setting recovery. In the method of monitoring connection status with agents of the manager, A first step of confirming whether or not to establish an association with an agent in the national company; A second step of checking a failure of the local communication network in the national company when the connection cannot be established according to the check result of the first step, and confirming the failure status display and recovery; As a result of the first step, if the connection setting status with the agent in the domestic company is normal, the connection setting status with the agent in the other country company is checked. In case of abnormality, the local connection part and the DCC channel status are checked. And monitoring the inability to establish an agent connection with another company when the DCC channel state is normal. In the manager process 301 of the manager 300, the link monitoring unit 303 for monitoring the link status between the agent in the domestic company 306 and the agent in the other country connected via the optical path 312, An LCN monitoring unit 303 which monitors the connection state between the manager 300 and the agent 306 through the LCN 304 and notifies the associated monitoring unit 303 when a failure occurs; The agent 306 monitors the connection state between the DCC channel monitoring unit 311 of the optical transmission device 310 and the agent in another country through the optical line 312 through the DCC channel monitoring unit 311. Local connection monitoring unit 309 of the agent 306 to inform the check of the connection status of the failure, and The CMIS agent 307 of the agent 306 that receives the connection failure information of the local connection monitoring unit 309 through the management object information base 308 and reports the manager process 301 through the interface 305 connection unit. TMN communication connection monitoring method of a synchronous optical transmission device comprising a.