KR100644284B1 - Method for diagnosing a management communication channel between a manager and an agent for a fiber loop carrier - Google Patents

Abstract

The present invention relates to an operation management communication channel state monitoring and diagnostic method between an administrator system and an agent system of an optical subscriber transmission device, and the present invention primarily calls a communication stack of the manager system and the agent system and responds to each of them as a response. Diagnose the failure of the communication stack, and secondly request communication status information from the manager system to the agent system to determine whether the message is normally received from the agent system to diagnose the program function error of the manager and agent system, Finally, as a result of the communication stack diagnosis step, restarting the communication stack daemon process of the failed manager or agent system to recover the communication stack daemon process, and then checking the physical state of the communication channel.

Therefore, by monitoring the status of the communication channel periodically or non-periodically, it is possible to immediately know whether the communication channel has a failure and to minimize the loss of operation information that may be caused during the failure period, thus managing the operation of the optical subscriber transmission device. Can increase the reliability.

Description

METHOD FOR DIAGNOSING A MANAGEMENT COMMUNICATION CHANNEL BETWEEN A MANAGER AND AN AGENT FOR A FIBER LOOP CARRIER}

1 is a block diagram for the operation management communication channel state monitoring diagnosis of the optical subscriber transmission apparatus according to the present invention;

2 is a flowchart illustrating an operation of performing an operation management communication channel state monitoring diagnosis according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: manager system 120: communication channel monitoring processing unit

140: OSI communication stack of the manager system

210, 220, 230: Agent system

212, 222, 232: OSI Communications Stack for Agent Systems

300: operation management communication channel

The present invention relates to an operation management system of communication resources of an optical subscriber network, and more particularly, to an operation management communication channel state monitoring diagnostic method between an administrator and an agent of an optical subscriber transmission device used in an optical subscriber network system.

With the advancement and intelligence of the communication network, the operation management method and concept of the communication network are changing from the concept of operation management of unit facilities to the concept of network management, service management, and business management. Because it is composed of various communication facilities, equipment and systems having different characteristics from each other, it is one of the difficult problems to operate, maintain and manage efficiently. This is because operating system (OS) or communication only components that manage the network tend to use specific information models and interfaces for each supplier, so it is difficult to integrate and manage the entire network while maintaining interoperability. Because it is not easy. Therefore, diverse and heterogeneous communication network components coexist, and the appearance of various types of operating systems is inadequate to interoperability between operating systems, and the operational efficiency of the entire operating system is expected to decrease. In order to proactively cope with increasing network operation and service environment and to maintain high quality service, new network operation management technology is required.

Accordingly, TMN (Telecommunication Management Network) has emerged as a communication network operation management technology required to overcome the limitations of individual operating systems and to establish a comprehensive and unified communication network operation management system by a standardized open method in response to such changes in the network environment. . TMN refers to a logical structure that connects the operating system and network components to a standard interface to manage communication networks and services, and exchanges necessary management information through this interface, and is an infrastructure that systematically supports communication management. .

On the other hand, the basic configuration of the operation management system in the optical subscriber network is composed of a manager system and a plurality of agent systems connected to the manager system, they are connected by an operation management communication channel such as a local area network (LAN). In addition, each agent system is loaded on the optical subscriber transmission device, and the manager system and the agent system are implemented to exchange information using mutual CMP (Common Management Information Protocol) and OSI (Open System Interconnection) communication protocol. .

In the operation management system of the optical subscriber network, the manager system acts as a client to make any request to the agent system, for example, information on the operation status, and the request is transmitted through the operation management communication channel. Is passed to the system. On the other hand, the agent system acts as a server to generate a response to the manager system's request, for example, a response indicating a failure or normal status, and the response is passed back to the agent system through the operation management communication channel. Reported to the operator. Therefore, when a failure occurs in the manager system or the agent system, alarm information, event information, performance information, and the like may be generated periodically or aperiodically, and the operation management system may cope with the service failure by referring to the failure information. .

However, in the current subscriber network, the operation management system of the optical subscriber transmission device does not have a monitoring system for the operation management communication channel. Therefore, in the event of a failure of the operation management communication channel, all the device-related information generated during the period is lost. There is no choice but to lose it, and the operator is left without detecting any lost device-related information. For this reason, not only does the operator have an enormous difficulty in managing the device, but also delays customer response to service failures and lowers the quality of customer service.

Therefore, an object of the present invention is to provide a communication channel state monitoring diagnostic method capable of immediately responding to a failure state of a communication channel in operation by an optical subscriber transmission device.

According to the present invention for achieving the above object, the communication channel diagnostic method for diagnosing the operation management communication channel status between the manager system and the agent system of the optical subscriber transmission device is a) the first communication stack of the manager system and the agent system Invoking a second communication stack; b) diagnosing the failure of the first communication stack and the second communication stack by receiving a response corresponding to the call; c) requesting communication status information to the agent system when a failure does not occur in step b); d) determining whether a response message corresponding to the request is received from the agent system; And e) diagnosing a program function error of the manager or agent system according to the determination.

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

1 is a block diagram of an operation management communication channel status monitoring diagnostic apparatus of an optical subscriber transmission device having an operation management communication channel status monitoring diagnostic apparatus according to the present invention, the manager system 100, a plurality of agents system (210, 220) , 230, and an operational management communication channel 300 that provides a communication path between the manager system 100 and the plurality of agent systems 210, 220, 230. The manager system 100 includes a communication channel monitoring processor 120 and an OSI communication stack 140, and each agent system 210, 220, and 230 includes an OSI communication stack 212, 222, and 232.

In the manager system 100, the communication channel monitoring processing unit 120 manages the device by receiving device information or transmitting a command of each agent system 210, 220, 230 through the operation management communication channel 300, The OSI communication stack 140 of the manager system 100 and the OSI communication stacks 212, 222, and 232 of each agent system 210, 220, and 230 are the manager system 100 and each agent system 210, 220. And 230 transmit and receive management information.

2 is a flowchart illustrating the operation of the operation management communication channel state monitoring diagnostic apparatus of the optical subscriber transmission apparatus according to the present invention.

First, when the operation management communication channel state monitoring diagnosis request is accepted from the operator periodically or aperiodically in a GUI manner (step 510), the communication channel monitoring processing unit 120 performs an OSI communication stack of the agent systems 210, 220, and 230. Call (212, 222, 232) (step 520), and also call OSI communication stack 140 of manager system 100 (step 530). In these steps 520 and 530, the communication channel monitoring processing unit 120 primarily comprises the OSI communication stack 140 of the manager system 100 and the OSI communication stacks 212 of each agent system 210, 220, 230. 222, 232 monitors its own protocol, i.e., the communication daemon process is operating normally, to determine if the communication daemon process of the OSI communication stacks 140 and 212, 222, 232 responds to the call. The communication stack daemon process is one of the important watch subjects of the present invention because of the potential for down during operation.

Thus, if the communication stack 140 of the manager system 100 and the communication stack 212, 222, 232 of the agent system 210, 220, 230 in step 520, 530 do not answer the call, then the corresponding communication If it is determined that there is a malfunction of the communication stack daemon process of the stack, the process proceeds to step 540 and, if the call is normally answered, to step 590.

In operation 540, the communication channel monitoring processor 120 performs a procedure of restarting the communication stack daemon process of the failed communication stack. In the next step 550, if the communication stack daemon process of the failed communication stack is restarted, and the communication stack daemon process is successfully recovered, the process proceeds to step 560 where communication such as disconnection of the communication line is a secondary diagnostic process. Check for failures in the physical path of the channel. However, if the communication stack daemon process is not recovered, step 570 is followed to construct an operator message informing the failure state of the communication stack daemon process. The operator message thus configured is stored as a record in the communication channel monitoring processor 120 in step 620 described below.

Then, if it is determined in step 560 that the physical path check of the communication channel indicates that the communication channel is not obstructed, the process proceeds to step 520 again. Otherwise, if there is a failure of the communication channel, the process proceeds to step 580. A path recovery request message is configured that requires communication path alerting and reconfiguration of the communication line, and stores the configured message as a record as in step 620.

On the other hand, in step 590, the communication channel monitoring processing unit 120 as a third diagnostic process, each agent system through the OSI communication stack 140 and (212, 222, 232) determined that there is no failure of the physical communication channel Request the communication state information (210, 220, 230), and in step 600 it is determined whether a message related to the communication state from each agent system (210, 220, 230) is normally received. These steps 590 and 600 are for monitoring whether there is a program function error in the manager system 100 and the agent systems 210, 220, 230 itself, for example a bug or down. In response to the call, each agent system (210, 220, 230) checks whether it returns the correct response. As a result of the check, if a response is normally received from the agent system 210, 220, 230, the process proceeds to step 620 and stores the state of the communication channel as a record.

However, if there is no response from the agent system 210, 220, 230, or if the manager system 100 does not receive the response, an error in the program function of the manager system 100 or the agent system 210, 220, 230 may occur. It is determined that there is (step 610), and the error state is stored as a record in the communication channel monitoring processing unit 120 (step 620).

Thereafter, the communication channel state stored as a record in the communication channel monitoring processor 120, that is, the failure of the communication daemon process generated in step 570, the communication path failure generated in step 580, and the generated in step 610. The operator and agent system displays the status of the functional failure to the operator through the GUI, and the operator judges the failure state or normal operation state of the optical subscriber transmission device therefrom and takes prompt action.

Therefore, according to the present invention, it is possible not only to promptly notify the operator of the presence or absence of a communication channel failure that may occur during initial operation or operation, but also to promptly respond, and to periodically or aperiodically state the communication channel. It can minimize the loss of operation information that can be caused during the period of failure and increase the reliability of operation management of optical subscriber transmission device.

Claims (3)

In the communication channel diagnostic method for diagnosing the operation management communication channel status between the manager system and the agent system of the optical subscriber transmission device, a) invoking a first communication stack of said manager system and a second communication stack of said agent system; b) diagnosing the failure of the first communication stack and the second communication stack by receiving a response corresponding to the call; c) requesting communication status information to the agent system when a failure does not occur in step b); d) determining whether a response message corresponding to the request is received from the agent system; And e) diagnosing a program function error of said manager or agent system in accordance with said determination. Communication channel diagnostic method comprising a. The method of claim 1, i) if a failure occurs in step b), requesting to restart the daemon process of the first communication stack or the second communication stack; ii) checking a physical state of the communication channel when restart is performed according to the restart request; And iii) repeating step a) if it is determined that the communication channel is free from the inspection. Communication channel diagnostic method further comprising. The method of claim 2, As a result of the diagnosis of step e), when a first failure occurs due to the program function error, when the second failure occurs because the restart is not performed according to the restart request in step i) or in step ii) Recording a condition according to the first failure, the second failure, or the third failure when a third failure occurs due to a failure of the communication channel according to the inspection; And Operator notification step of notifying the operator of the recorded failure status Communication channel diagnostic method further comprising.

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