JPH10210034A - Network management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make equal the reliability of the management of both an agent and a management information base(MIB) by defining the management information of the agent and/or the (MIB) as a management object, storing it in the MIB, and monitoring and controlling the agent by operating the management object. SOLUTION: An MOA 431 as the management object of a device A44 to be managed, an MOB 432 as the management object of a device B45 to be managed, an MOC 433 as the management object of an agent 42, and an MOD 434 as the management object of an MIB 43 are held in the MIB 43 in a network management system. Thus, the management information of the agent of the MIB is defined as the management objects 431-434 in the same way as devices to be managed such as each kind of communication resource of a network of a communication equipment or the like being a conventional object to be managed, and the agent of the MIB is managed by operating the management objects 431-434.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an agent, a management information base (hereinafter referred to as "management information base").
It is called "MIB". ) And a network management system having a device to be managed.
B management and system management.

[0002]

2. Description of the Related Art Conventionally, in this type of management system, an ITU (Internat
ional Telecommunication Union)
Standards, for example, ITU-TM. As shown in 3100, the management target is a management object (Managememe).
nt Object: MO) is defined in the MIB.

FIG. 7 is a block diagram showing an example of a conventional management system. 7, the network management system includes a manager 11, an agent 1
2, MIB 13, and managed device B15.

[0004] In the MIB 13, management information of the managed device A14 is defined as a managed object (MO) and held as an MOA 131. Similarly, the managed object (MO) of the managed device B15 is an MO.
132.

[0005] FIG. 8 shows an ISO / IEC for a managed device A 14 and a managed device B 15 that are held and managed as managed objects (MO) on the MIB 13.
GDMO (Guidelin), which is a template related to the definition of managed objects defined by Recommendation 10165-4
e for the Definition of Managed Objects). On the MIB 13, management information for monitoring control such as instructing execution of a specific operation with respect to various communication resources that are managed devices is an attribute.
And action.

FIG. 9 shows an example of the monitoring control according to the prior art. In response to a GET request from a manager, which is a request to read various data (values) related to communication resources managed by an agent, the data related to the agent is controlled. It is a flowchart which performs a GET response.

The manager sends an MI to the agent.
Step A1 of making a GET request requesting to read the attribute of a specific managed device on B, and reading the attributes (attributes) of the managed device by referring to the MIB in response to the GET request from the manager A2 is followed by a step A3 in which the agent makes a GET response for sending the read value to the manager. In this way, the manager implements the collection of information using the MIB management object. Monitoring and control by execution instructions of other necessary operations are also realized by referring to the MIB.

[0008]

In the conventional management method,
All the management information of the managed device is managed object (M
Although O) is stored in the MIB, the management information of the agents and MIBs that constitute the network management system is not defined in the MIBs, so the manager polls the agents for the management of the agents and MIBs. Management and other methods.

For this reason, the manager has a problem that the function becomes complicated, and the manager manages the agent and MIB by using another management means for realizing the system management function. Therefore, there is a difference in management protocol and management quality between the device to be managed and the agent and MIB, and there is a problem in that reliability is different.

[0010]

In order to solve the above-mentioned problems, a network management system according to the present invention comprises an agent, a MIB (Management Information Base), and a management target device. It is characterized in that the management information is defined as a management object in the same manner as the management information of the management target device, is stored in the MIB, and the monitoring control of the agent is performed by operating the management object.

The network management system according to the present invention has a manager, an agent, and a management information base.
agemennt Information Protocol) and SNMP (Simple
In a network management system that performs network monitoring and control using the Network Management Protocol)
The agent or the MIB is a management object defined by a GDMO template, the agent or the MIB is managed by the management object, and the system management of the network management system is performed by using the agent or the MIB defined as the management object. Is performed.

As described above, the network management system according to the present invention is described using a GDMO template and a method in which management information on agents and MIBs is defined as a management object, and management control is performed in the same manner as the management target device. The system management including the agent, MIB, and the device to be managed is performed in a unified manner by using the agent or MIB as a management object and providing a means for implementing a system management function.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a network management system according to an embodiment of the present invention.

In the present embodiment, for example, the communication protocol is composed of a manager and an agent, which are subsystems of a system defined in an international standard for the management of a communication network, and is mainly applied to backbone communication. CMIP (Common Managemennt Informati
on Protocol) and SN defined by RFC1157
A network management system that monitors and controls a network using MP (Simple Network Management Protocol) is applied.

In this embodiment, in a system management for managing various communication resources over the entire network and a plurality of protocol layers, a manager 41 which manages various communication resources through subordinate agents, a plurality of protocol layers, An agent 42 that manages various communication resources and the like in charge of management between them, a management information base MIB 43 that stores management objects related to management targets,
It has a managed device A44 and a managed device B45 corresponding to various communication resources that are one of the managed objects.

The MIB 43 in the network management system includes an MO A 431 as a managed object of the managed device A 44 and a managed device B 4
In addition to the MOB 432 held as a managed object of No. 5, the MOC 433 as a managed object of the agent 42 and the MOD 434 of the MIB 43 are also held.

FIG. 2 shows a management object definition of the agent 42 described in the GDMO template format.

In the network management system of the present invention, the management information of the agent 42 is defined as an agent management object
3 has multiple attributes (attributes) as agentObject
And action are held.

More specifically, the attribute (attribut) shown in FIG.
es), has an agentState as an agentState, for example, has status information such as whether the agent is active or standby, and if the agent is active, whether it is a control active or a monitoring active, a failure, and the like. Or information on a switching mode such as manual, and as redundancy, information on a system configuration such as system information of the first system or system information of the second system.
The rminationAddress has the address information of the partner agent. In addition, agent notifications (NOTIFI
CATIONS) has information of an operation state change as attributesValueChange and information of an nms alarm notification as nmsAlam.

In the MIB 43, the managed object agentObject (MOC) of the agent 42 is treated as one of the managed objects together with the managed objects (MOA, MOB) of the device to be managed.

FIG. 3 shows a management object definition described in the GDMO template format of the MIB 43. MIB
Similarly, the management information of 43 is also defined as a management object mibObject, and a plurality of attributes (actions) and actions are stored as management objects (MODs) in the MIB 43, and are the same as other management objects in the MIB 43. Is treated as one of the managed objects.

FIGS. 4 to 6 are flowcharts showing management control related to an agent according to an embodiment of the present invention.

FIG. 4 shows a flow in which the manager synchronously reads or collects information on various activities of the agent recorded in the MIB 43.

Step B1 in which the manager issues a GET request for attributes to read the state of the agent, step B2 in which the agent reads attributes from the corresponding agent's management object (agentObject) from the MIB in response to the GET request, and
It comprises a step B3 of returning an ET response.

FIG. 5 shows a flow in which the manager sets the environment for the operation (operation, management or control, etc.) of the agent.

A step C1 for the manager to make an attribute SET request to set information in the MIB; a step C2 for the agent to set the attribute value in the corresponding management object (mibObject) of the MIB by the SET request;
Step C3 in which the agent returns a SET response to the manager.

FIG. 6 shows a flow for notifying the occurrence of an asynchronous event such as the occurrence of a failure or a change in state from the agent.

When an alarm occurs in the agent (step D1), the agent sets the corresponding ag in the MIB.
The NOTIFICATION of the entobject is sent to the manager (step D2), and the manager receiving the notice can know that an alarm has occurred in the agent (step D3).

Further, the management control related to the MIB 43 can be similarly implemented. That is, the attribute (at
tributes) has MIB database state as mibState, for example, state information such as whether MIB is normal or faulty, and mibLocked has information such as locked state or unlocked state, The updateFlag includes information indicating whether the MIB update flag is updated or not. Further, as notification (NOTIFICATIONS) of MIB, as attributeValueChange (change of attribute value),
It has an MIB status change notification and an nms alarm notification as nmsAlarm.

Then, synchronous reading or collection of information such as the status of various databases of the MIB 43, setting of environment such as operation, management and control of the MIB 43, and occurrence of an asynchronous event such as occurrence of a failure or change of the status of the MIB 43. Is executed in the same manner as in the flow chart showing the management control related to the agent.

[0031]

As described above, according to the network management system of the present invention, agents and MIBs are
The management information is defined as a management object in the same manner as the management of a management target device such as various communication resources, such as a network and a communication device, which have been conventionally managed.
Since B can be managed, there is no difference in management protocol and management quality between the management target device and the agent and / or MIB, and the management of monitoring and control of both is performed with the same reliability. be able to.

The effect is also remarkable in that it is not necessary to mount a new system specialized in agent and MIB management as a network management system.

[0033]

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a network management system according to the present invention.

FIG. 2 is a diagram showing a definition of a management object of an agent according to the present invention.

FIG. 3 is a diagram showing a definition of a management object of the MIB of the present invention.

FIG. 4 is a flowchart showing management control related to an agent.

FIG. 5 is a flowchart showing environment setting of an agent.

FIG. 6 is a flowchart illustrating notification of occurrence of an event of an agent.

FIG. 7 is a block diagram showing a conventional network management system.

FIG. 8 is a diagram showing a definition of a conventional management object.

FIG. 9 is a flowchart showing management control according to the related art.

[Explanation of symbols]

 11 Manager 12 Agent 13 MIB 14 Managed Device A 15 Managed Device B 41 Manager 42 Agent 43 MIB 44 Managed Device A 45 Managed Device B 131 Managed Object (MO) A 132 Managed Object (MO) B 431 Managed Object ( MO) A 432 managed object (MO) B 433 managed object (MO) C 434 managed object (MO) D

Claims (3)

[Claims] 1. A network management system having a manager, an agent, a management information base and a device to be managed, wherein the management information of the agent is defined as a management object like the management information of the device to be managed, and the management information is defined in the management information base. A network management system for storing and controlling the agent by operating the management object. 2. A network management system having a manager, an agent, a management information base and a device to be managed, wherein the management information of the management information base is defined as a management object similarly to the management information of the device to be managed, and A network management system, wherein the network management system stores and manages the management information base by operating the management object. 3. It has a manager, an agent, a management information base, and a management target, and the manager and the agent are connected to a CMIP (Common Management Information Protocol).
l) and SNMP (Simple Network Management Protocol)
l) A network management system for monitoring and controlling a network by using GDMO as the agent and the management information base.
(Guideline for the Definition of Managed Object
s), the agent and the management information base are managed by the management object, and the system management of the network management system is performed using the agent and the management information base defined as the management object. A network management system characterized by performing.