KR100211979B1 - Method and apparatus for monitoring tmn communication connection of synchronous optic transmission system - Google Patents

Abstract

The present invention is a communication connection connection monitoring method with the agent of the management target device of the manager in the TMN management network for the network management of the synchronous optical transmission device, wherein the connection monitoring unit in the manager processor of the manager LCN monitoring unit and agent 1 Agent which 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 when abnormal, displays agent status of agent 1 connection and LCN according to LCN connection status. 1 link status monitoring process; If the agent 1 connection setting state is normal, the agent 2 connection setting state is checked, and if abnormal, the agent 2 connection failure and the cause of the LCN failure or the local connection failure are indicated depending on the LCN connection status and the DCC channel length of the local connection. It is characterized by performing agent 2 linked status monitoring process.

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 the International Recommendation ITU-T Recommendation M.3010, and the agents 102, 106, and 110 perform the management agency function of the network element level of each device as shown in FIG. The manager 100 is configured to perform the centralized management function of the synchronous transmission network through the Q3 interface 113.

The agent of the synchronous transmission device collects configuration / fault / 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 that performs the management agency function of each synchronous optical transmission device and various synchronous levels (STM-1, STM-4, STM-16, STM that are physically distributed and operated in various offices). -64, etc.) Performs network management function for various network configurations of SDH NEs (Network Elements).

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

The manager is connected at the network management application process level through the Agent 1 and Q3 interfaces.

Agent 2 is connected through Q3 interface and Agent 1 provides message routing 204 at the network layer protocol level for relaying messages between them.

The physical connection path between the manager and the agent 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 path 218 between the LCN 205 in the local office, agent 1 202 and the supervisory 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 access unit 213 in the remote office.

Under this communication connection configuration, the manager accesses the failure, performance, and configuration information of individual synchronous optical transmission devices or problems occurring in each device through agents in the local office and agents operating in the remote office connected through the local communication network. You should be informed of status and configuration changes in real time as possible.

However, in this connection configuration state with various agents of the manager, in case of failure of each component constituting the connection path, in case of LCN in the company, connection failure with multiple agents occurs and agents in other countries connected through the optical path. 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 subsystem 208 or 215, a communication state with the agent 211 is lost.

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 a 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 to establish a connection with an agent in the national office:

A second step of confirming a failure state display and recovery when a failure occurs by checking a local communication network failure in the national office when the connection cannot be established according to the check result of the first step:

As a result of the first step, if the connection setting status with the agent in the country is normal, check the connection setting status with the agent in the other country, and if abnormal, check the local connection and DCC channel status to indicate the recovery request in case of failure. And if the DCC channel state is normal, a third step of indicating the inability to establish an agent connection with another company.

1 is a TMN network management configuration 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 of a connection monitoring process for a synchronous optical transmission device according to the present invention.

* Explanation of symbols for main parts of the drawings

300: manager 301: manager process

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

304: LCN 305: 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 is The Q3 interface, 306 is an agent, 307 is a CMIS agent, 308 is a management object information base, 309 is a local access monitor, 310 is a synchronous optical transmitter, 311 is a DCC channel monitor, 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 connection 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 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 path 312 through the DCC chat 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 the association setting state of the agent 1 306. 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 a procedure (400) to confirm the agent 1 connection establishment.

If the agent 1 association setting check result is normal, the association setting 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 indicated (414), and if abnormal, the local connection and DCC channel failure status are displayed (412) and requested to be repaired.

Thereafter, the process of verifying the agent 2 connection establishment 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.

Therefore, 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 detects the local communication network connection state with the agent in the office. A local communication network) 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 grasp the 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 access monitoring unit 309 collects the DCC channel connection state through the DCC channel monitoring unit 311 in the optical transmission device 310 to obtain the communication connection status information with the agent in the other country when the failure and recovery This 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 judges the normal status of the communication connection status between the various agents performing the management agency by using the failure status of the communication connections reported by the monitoring units 302, 303, 309 and 311 operating in the agent, the optical transmission device, and displays the failure status. Requests recovery and then performs the verification process to perform normal recovery and operation status determination and display.

Through the present invention, in the integrated management network operation of the synchronous transmission network that is established or will be constructed and operated in the future, the present invention provides a real-time identification and recovery procedure of the communication connection connection state between the manager, which 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.

An object of the present invention is to provide a method for monitoring connection status of agents of a manager performing a network management function by maintaining a centralized communication connection state with various agents of a synchronous optical transmission device.

Claims (5)

In the method of monitoring the communication connection between the manager and the agent in the TMN management network of the synchronous optical transmission device, the linkage monitoring unit in the manager processor includes 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 agent1 linkage state monitoring process of collecting fault state information and checking an association setting state with the agent1 and displaying an agent1 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 connection setting state is checked and, if abnormal, the agent 2 connection failure and the cause of the LCN failure or the local connection failure are indicated depending on the LCN connection status and the DCC channel length of the local connection. TMN communication connection monitoring method of a synchronous optical transmission device, characterized in that configured to perform the agent 2 linked state monitoring process. The method of claim 1, wherein the agent 1 linkage state monitoring process comprises: a first step (400) of checking a linkage setting state with the agent 1 through a linkage monitor of the manager; As a result of the checking 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 (402, 402, 403) indicating a failure recovery request by indicating a; And a third step (404, 405, 406) of displaying an agent 1 connection failure in case of abnormality and indicating an error recovery request by indicating an LCN failure indication after the confirmation of the second step (401). TMN communication connection monitoring method of a synchronous optical transmission device comprising a). The method of claim 1, wherein the agent 2 association status monitoring process comprises: 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 by the LCN monitoring unit is checked to indicate that the agent 2 connection failure is displayed. A fifth step (408, 409, 410) of indicating a failure recovery request to confirm the LCN connection failure recovery; And if the check result of the fourth step 407 is normal, the local access unit and the DCC channel failure monitoring result performed by the local access monitoring unit are checked to display the agent 2 connection failure in case of abnormality, and the local connection unit and the DCC failure are detected. A sixth step (411, 412, 413) indicating the failover request and confirming the local connection and the DCC failover; And confirming the local access unit and the DCC channel failure monitoring result performed by the local access monitoring unit as a result of the checking in the fifth step 411, indicating the agent 2 connection failure if it is normal, and displaying the agent 2 failure cause and the request for recovery. And a sixth step (411, 414, 415) of confirming the recovery of the agent-2 association setting afterwards. A method for monitoring connection status with agents of a manager, the method comprising: a first step of confirming whether connection with an agent in a company can be established; and checking a local communication network failure in a company if connection cannot be established according to the check result of the first step When the failure occurs, the second step of checking the status of the failure and confirming the recovery, and if the connection setting status with the agent in the domestic company is normal, as a result of performing the first step, check the connection setting status with the agent in the other country, if abnormal TMN communication connection of the synchronous optical transmission apparatus including a third step of checking the connection state and the DCC channel state to indicate a recovery request in case of failure, and indicating the inability to establish agent connection with other stations when the local connection state and the DCC channel state are normal. Surveillance Method. In the manager process 301 of the manager 300, the linkage monitoring unit 303 for monitoring the linkage status between the agent in the domestic company 306 and the agent in the other country connected through the optical path 312, and the LCN 304. The LCN monitoring unit 303 for monitoring the connection state between the manager 300 and the agent 306 through the connection monitoring unit 303 when a failure occurs, and the agent 306 and the optical transmission apparatus 310 of the agent 300 are monitored. The agent 306 monitors the connection state with the DCC channel monitoring unit 311 and checks the connection state with an agent in another country through the optical path 312 through the DCC channel monitoring unit 311 to notify it when a failure occurs. The agent that receives the connection failure information of the local connection monitoring unit 309 and the local connection monitoring unit 309 through the management information base 308 and reports the manager process 301 through the interface 305 connection unit. Includes 306 CMIS agents 307 TMN communication connection monitoring device of the synchronous optical transmission device, characterized in that the configuration.