KR100628297B1 - Method for managing network using SNMP - Google Patents

Abstract

Network management method using SNMP according to the present invention comprises the steps of configuring the MIB to each of the network components including HDTV media gateway and client; Receiving a request for management of the network component through an SNMP message from a network management apparatus; Analyzing the SNMP message to determine whether the management is management of configuration information or statistical information of the network component; Retrieving the MIB, processing the corresponding information based on a configuration scheme of a predetermined network component into an SNMP message and transmitting the information to the network management apparatus if the management request for configuration information is determined as the determination result; And if the management result of the statistical information is determined, searching for the MIB, processing statistical data related to the operation of the network component into an SNMP message, and transmitting the statistical data to the network management device. In addition, by using the Internet Standard Network Management Protocol (SNMP), information related to the operation of network components such as clients can be managed remotely without the operator moving to the place where the device is actually installed. Efficiently measure flow, configuration, status, and statistical information.

Description

Method for managing network using SNMP {Method for managing network using SNMP}

1 is a block diagram of a high definition television (HDTV) service network to which a network management method using SNMP according to the present invention is applied.

2 is a structural diagram of the application and management agent software of the HDTV media gateway device to which the network management method using SNMP according to the present invention is applied.

3 is a flowchart illustrating a process of a network management method using SNMP according to the present invention.

<Definition of important terms used in the drawings or detailed description>

HDTV Media Gateway: HDTV Media Gateway (HiMeG)

MPEG2: Motion Picture Experts Group-2

CONF-MIB: Configuration Management Information Base

STAT-MIB: Statistic Management Information Base

IP: Internet Protocol

HDTV: High Definition Television

SNMP: Simple Network Management Protocol

MIB: Management Information Base

BER: Basic Encoding Rule

ASN: abstract syntax notation

OID: Object Identifier

PDU: Protocol Data Unit

The present invention relates to a network management method, and more particularly, to a network management method for managing a device and applications in a HDTV media gateway device server and a client equipped with a network management function using SNMP. .

Among the devices using the IP streaming technology, the HDTV media gateway device (hereinafter referred to as "HiMeG") to which the present invention is applied did not perform a network management function and has only an independent operation capability.

 In other words, among the devices using IP streaming technology, the HDTV media gateway device used in the present invention does not perform a network management function but has its own operational capability. Measurements were made simply through command line input on the system on which the function was performed. However, it is difficult to grasp the flow or composition of the overall network environment when viewing this much diverse information only in the corresponding system.

Therefore, the operator does not move to the place where the device is actually installed, but uses the simple network management protocol (hereinafter referred to as SNMP) to configure the agent for configuration, status, and statistics management of the corresponding HDTV media gateway, client, and connected sessions. The need is raised.

SUMMARY OF THE INVENTION The present invention has been made to solve the above necessity, and to provide a method for managing configuration, status, and statistics of an HDTV media gateway, a client, and connected sessions remotely using SNMP.

In order to achieve the above technical problem, a network management method using SNMP according to the present invention comprises the steps of: respectively configuring a MIB in a network component including an HDTV media gateway and a client; Receiving a request for management of the network component through an SNMP message from a network management apparatus; Analyzing the SNMP message to determine whether the management is management of configuration information or statistical information of the network component; Retrieving the MIB, processing the corresponding information based on a configuration scheme of a predetermined network component into an SNMP message and transmitting the information to the network management apparatus if the management request for configuration information is determined as the determination result; And if the management result of the statistical information is determined, searching for the MIB, processing statistical data related to the operation of the network component into an SNMP message, and transmitting the generated statistical data to the network management apparatus.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, an overview of network management to be realized by the present invention will be described. Network management refers to remote control of several arbitrary devices. For this function, mutual data transfer protocol is required. One of the international standards for this is SNMP. Since SNMP can be understood by anyone of ordinary skill in the art to which the present invention pertains, its description is omitted.

In the case of configuration management, the MIBs related to the system group, board group, port group, path group, and session group are set in the configuration MIB (CONFiguration-MIB). To execute the function of transmitting or modifying the corresponding information according to the request.

In the case of statistics management, it refers to a function of transmitting the status information in the MIB according to the request of the network manager.In the case of statistics management, the number of requests requested or discarded by the HiMeG device and the client respectively, This function saves the number of packets to be output and the packets transmitted or discarded through each connection session in the statistics (MIB), and transmits the statistics as soon as the administrator requests.

1 is a block diagram of a high definition television (HDTV) service network to which a network management method using SNMP according to the present invention is applied.

The HiMeG 100 device shown in FIG. 1 includes a network management agent 110, a gigabit & 10/100 Ethernet access module 120, a transcoding module 130, a switching module 140, a client 150, 151, 152. It consists of. The SNMP agent implementing the network management method according to the present invention is located in the network management agent 110 and the clients 150, 151 and 152.

2 is a structural diagram of the application and management agent software of the HDTV media gateway device to which the network management method using SNMP according to the present invention is applied.

In FIG. 2, the agent parses MIBs in the corresponding node with system startup, and stores the schema of the agent in the MIB schema. In addition, information about each parsed MIB is read through the kernel, and a value thereof is stored in the MIB database 200. The MIB database 200 includes the configuration MIB 211 which is located in both the HiMeG device 100 and the clients 120, 130, and 140 and stores the system configuration information, and the statistical information MIB 221 which stores the statistical information.

The Basic Encoding Rule (BER) module 230 and the Abstract Syntax Notation (ASN) module 240 decode and analyze the SNMP Protocol Data Unit (PDU) received from the management system. Then, the relevant variable in the PDU is interpreted, and the corresponding MIB information is retrieved from the MIB database 200 stored by the CONF management module 210 and the STAT management module 220 to respond to the management system that generated the request. Send it.

Now, look at the network management flow according to the present invention under the configuration as described above. 3 is a flowchart illustrating a process of a network management method using SNMP according to the present invention.

First, when receiving the SNMP message (300), the received message is a protocol analysis. SNMP PDUs consist of service identifiers, communities, and variables. The service identifier distinguishes whether the request retrieves a value (Get, GetNext) or sets a value (Set). Community means access rights and access of MIB information is restricted according to this community. And the variable means the variable name of the actual MIB information and consists of a value called OID (Object Identifier). This variable determines management information. After analyzing the SNMP PDU, the management target is decided based on the variable name in the PDU. Each management object for the configuration information of the HiMeG device is stored in the CONF-MIB 211 by the CONF management module 210, and each management object for the statistical information of the HiMeG device is stored in the STAT- by the STAT management module 220. Stored in the MIB 221.

Now let's take a closer look at the steps. After receiving the SNMP message, the message is analyzed (300) to determine whether it is for configuration management (301) or status management (360) and operates according to each function. If the information of the received input message is interpreted as configuration management information (301), first search the MIB database stored by the HiMeG management module, and then determine whether the system configuration management (310), if it is determined that the system configuration management command Parses and analyzes the syntax (311) to determine whether the input command is a get or get Next command, retrieves MIB data if correct, and performs a change operation to set the corresponding MIB data if determined by the set command. (312). After executing an operation according to each command, a corresponding SNMP message is generated (390), the message is transmitted to the management apparatus, and the program is terminated (391).

If it is determined that the system configuration management is not determined whether the board (board) configuration management (320), if it is determined that the board (board) configuration management, the command syntax is interpreted and analyzed (321) and the input command is get or get If it is determined that the command is Next, the MIB data is searched if it is correct, and if it is determined by the set command, a change operation is performed to set the corresponding MIB data (322). After executing an operation according to each command, a corresponding SNMP message is generated (390), the message is transmitted to the management apparatus, and the program is terminated (391).

If it is determined that the system configuration management or the board configuration management is not determined whether the port (port) configuration management (330), if it is determined that the port (port) configuration management, the command syntax is interpreted and analyzed (331) It is determined whether the command is a get or get Next command. If it is determined, the MIB data is searched, and if it is determined by the set command, a change operation is performed to set the corresponding MIB data (332). After executing an operation according to each command, a corresponding SNMP message is generated (390), a corresponding SNMP message is transmitted to the management apparatus, and the program is terminated (391).

If it is determined not to be system configuration management, board configuration management, and port configuration management, it is determined whether path configuration management is performed (340), and if it is determined as path configuration management, the command syntax is interpreted and analyzed (341). In operation 342, the controller determines whether the command is a get or get Next command, searches for MIB data if it is correct, and sets the corresponding MIB data if it is determined by the set command (342). After executing an operation according to each command, a corresponding SNMP message is generated (390), a corresponding SNMP message is transmitted to the management apparatus, and the program is terminated (391).

If it is not system configuration management, board configuration management, port configuration management, path configuration management, it is determined whether it is session configuration management (350), and if it is determined as session configuration management, the command syntax is interpreted and analyzed. It determines whether the command is a get or get Next command, and if it is determined to search the MIB data, if it is determined by the set command to perform a change to set the corresponding MIB data (351). After executing an operation according to each command, a corresponding SNMP message is generated (390), a corresponding SNMP message is transmitted to the management apparatus, and the program is terminated (391).

If it is neither configuration management (301) nor statistics management (360), a corresponding message is generated, the message is transmitted to the management apparatus, and the program ends.

In addition, even in the case of configuration management, even if the system configuration management, board configuration management, port configuration management, path configuration management, session configuration management is not generated, generate the corresponding SNMP message and transmit this message to the management device and terminate the program.

If it is determined that the received information is statistical information (360), first, the MIB database 200 stored by the STAT management module 220 is searched. Examples of statistical information include transcoding interface information and IP packet statistical information. When information is requested from a management system, the corresponding kernel is read and responded in real time.

If the required statistical information is transcoding interface information 361, the HiMeG device retrieves 371 interface information implemented and stored in the network management method according to the present invention for management purposes, and generates an appropriate SNMP response message ( 390) and then transmits this message to the management device and terminates the program (391).

If it is not the transcoding interface information, it is searched for whether it is IP packet statistics information (380). In the case of the IP packet statistics information, the IP kernel is searched (381) to generate an appropriate SNMP response message (390), and then the message is sent to the management apparatus and the program is terminated (391).

Finally, if it is determined that the received information is not statistical information, it is checked whether the interface management information is 361. In the case of interface information, after retrieving the interface configuration information (362), generating an appropriate SNMP response message (390), and sending this message to the management device, if it is not the interface information, an unknown message appears. In this case, an appropriate SNMP response message is generated (390), and then the message is transmitted to the management apparatus and the program is terminated (391).

The network management method using SNMP according to the present invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, flash memory, optical data storage device, and also carrier wave (e.g. transmission over the Internet). It is also included to be implemented in the form of. The computer readable recording medium can also be distributed over computer systems connected over a computer network so that the computer readable code is stored and executed in a distributed fashion. Also, the font ROM data structure according to the present invention can be read by a computer on a recording medium such as a computer readable ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, flash memory, optical data storage device, and the like. It can be implemented as code.

The network management method using SNMP according to the present invention described above is not limited to the description of the above-described configuration and the accompanying drawings, and various substitutions, modifications, and changes may be made without departing from the spirit of the present invention. It will be obvious.

As described above, according to the network management method using SNMP according to the present invention, information related to the operation of a network component such as a HiMGE device or a client is transferred to a place where the device is actually installed using the Internet standard network management protocol (SNMP). By allowing the operator to manage remotely without moving, it is possible to efficiently measure the flow, configuration, status and statistical information of the entire network in the Internet network using HiMeG.

Claims (4)

(a) configuring MIBs in a network component including an HDTV media gateway and a client, respectively; (b) receiving a request for management of the network component through an SNMP message from a network management apparatus; (c) analyzing the SNMP message to determine whether the management is management of configuration information or statistical information of the network component; (d) retrieving the MIB and processing corresponding information based on a configuration scheme of a predetermined network component into an SNMP message if the management request for configuration information is determined, and transmitting the configuration information to the network management apparatus; And (e) searching for the MIB and processing statistical data related to the operation of the network component as an SNMP message if the management request for the statistical information is determined; and transmitting the same to the network management apparatus. Step (d) (d1) If the management request is a request for configuration information, the MIB is analyzed after analyzing an SNMP message received from the network management apparatus in order of system configuration, board configuration, port configuration, path configuration, and session configuration of the network component. Generating and transmitting the SNMP message with reference to; And (d2) If the management request is a change of configuration information, the MIB is analyzed after analyzing an SNMP message received from the network management device in order of system configuration, board configuration, port configuration, path configuration, and session configuration of the network component. And according to the change request, processing the result into the SNMP message and transmitting; Step (e) is And searching for the MIB to form the statistical data including transcoding interface information and IP packet statistical information. The method of claim 1, wherein the MIB is And a configuration MIB for storing system configuration information of the HiMeG device and the client, and a statistical information MIB for storing statistical information. delete delete

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