KR20010063753A - Method of managing network for atmarp server using snmp - Google Patents

Abstract

PURPOSE: A network management method in an ATMARP(ATM(Asynchronous Transfer Mode) Address Resolution Protocol) server - client network using an SNMP(Simple Network Management Protocol) is provided to remotely manage various information on the ATMARP server - client by using the SNMP. CONSTITUTION: A system analyzes a protocol of a received message(101). If the received message is LIS(Logical IP(Internet Protocol Subnet)) information(103), the system retrieves an LIS table(104), and generates a corresponding SNMP(Simple Network Management Protocol) message for transmitting(120,121). If the message is client or server information(107), the system retrieves a kernel of an ATMARP(ATM(Asynchronous Transfer Mode) Address Resolution Protocol)(108), and generates a corresponding SNMP message for transmitting(120,121). If the message is virtual channel information(109), the system retrieves a virtual channel kernel(110), and generates a corresponding SNMP message for transmitting(120,121). If the message is perpetual virtual channel information(111), the system retrieves a perpetual virtual channel kernel(112), and generates a corresponding SNMP message for transmitting(120,121). If the message is interface information(114), the system retrieves the interface information(115), and generates a corresponding SNMP message for transmitting(120,121). If the message is ATM adaptation layer information(116), the system retrieves an ATM adaptation layer kernel(117), and generates a corresponding SNMP message for transmitting(120,121). If the message is interface management information(118), the system retrieves interface construction information(119), and generates a corresponding SNMP message for transmitting(120,121).

Description

Asynchronous Forwarding Mode Address Resolution Protocol Using Simple Network Management Protocol {METHOD OF MANAGING NETWORK FOR ATMARP SERVER USING SNMP}

The present invention relates to a network management method in an asynchronous delivery mode address resolution protocol server-client network using a simple network management protocol. Particularly, the present invention relates to an existing Internet protocol (IP) using an ATM device in an ATM network environment. ATM Address Resolution Protocol (ATMARP) servers, clients, and ATM devices that allow applications to communicate using the Simple Network Management Protocol (SNMP), an Internet standard network management protocol. In order to manage the ATM device, ATMARP server and client, and virtual channel configuration, status, and statistical information efficiently, the network management method in the asynchronous delivery mode address resolution protocol server-client network can be managed. It is about.

In order to manage ATM devices or application programs constituting the ATM network, a device or an application program is managed through input of a command in most systems on which a device is mounted or an application program is executed. As a result, it was difficult to manage the flow of the entire network, the state of the equipment, or the state of the applications in a global environment.

Accordingly, the present invention has been made to solve the above problems of the prior art, using the Simple Network Management Protocol (SNMP), which is an Internet standard network management protocol for asynchronous delivery mode address resolution protocol (ATMARP) server and client and ATM devices. Network management method in the asynchronous delivery mode address resolution protocol server-client network that can efficiently manage the configuration, status, and statistics of the corresponding ATM device, ATMARP server, client, and virtual channels at the entire network level. The purpose is to provide.

1 is a schematic diagram of an asynchronous delivery mode address resolution protocol (ATMARP) network to which the present invention is applied.

2 is a schematic diagram of application and management agent software in accordance with the present invention;

3 is an overall flow chart in accordance with the present invention.

According to an aspect of the present invention, there is provided a network management method in a server-client network using an address resolution protocol (ARP) in an asynchronous delivery mode (ATM), comprising: a first step of analyzing a protocol of a received message; If the received message is logical IP subnet (LIS) information of IP over ATM management information, the logical IP subnet table is searched, and a simple network management protocol message corresponding thereto is generated and transmitted. Second step; If the received message is client or server information of IP over ATM management information, searching for a kernel of ATMARP, generating a simple network management protocol message corresponding thereto, and transmitting the same; A fourth step of searching for a virtual channel kernel, generating a simple network management protocol message corresponding thereto, and transmitting the received virtual channel information if the received message is virtual channel information of IP over ATM management information; If the received message is permanent virtual channel information of IP over ATM (IP over ATM) management information, a fifth step of searching for a permanent virtual channel kernel, generating a corresponding simple network management protocol message, and transmitting the corresponding virtual channel kernel; ; If the received message is interface information of ATM management information, searching for interface information, generating a simple network management protocol message corresponding thereto, and transmitting the same; If the received message is ATM adaptation layer information of ATM management information, searching for an ATM adaptation layer kernel, generating a simple network management protocol message corresponding thereto, and transmitting the same; And if the received interface management information, retrieves the interface configuration information, generates a simple network management protocol message corresponding thereto, and transmits it.

In addition, the present invention provides a computer with a function of analyzing a protocol of a received message; If the received message is logical IP subnet (LIS) information of IP over ATM management information, the logical IP subnet table is searched, and a simple network management protocol message corresponding thereto is generated and transmitted. function; If the received message is client or server information of Internet Protocol (IP) over IP (IP Over ATM) management information, searching for a kernel of the ATMARP, generating a simple network management protocol message corresponding thereto, and transmitting the same; If the received message is virtual channel information of IP over ATM management information, searching for a virtual channel kernel, generating a simple network management protocol message corresponding thereto, and transmitting the virtual channel kernel; If the received message is permanent virtual channel information of Internet Protocol (IP) over IP (IP Over ATM) management information, searching for a permanent virtual channel kernel, generating a simple network management protocol message corresponding thereto, and transmitting the message; If the received message is interface information of ATM management information, searching for interface information, generating a simple network management protocol message corresponding thereto, and transmitting the same; If the received message is ATM adaptation layer information of ATM management information, searching for an ATM adaptation layer kernel, generating a simple network management protocol message corresponding thereto, and transmitting the same; And, if the received interface management information, retrieves the interface configuration information, generates a simple network management protocol message corresponding thereto, and provides a computer-readable recording medium having recorded thereon a program for realizing a function of transmitting the interface configuration information.

The present invention performs the function of the management agent to manage the devices and applications in the ATMARP server and client equipped with a network management function using SNMP. Configuration management function in the management agent function The interface management function of ATM device, logical IP subnet (LIS) configuration, ATMARP server and client configuration, and virtual channel configuration information are used by remote management system in network management protocol. To manage it. The state management function is to enable the remote management system to understand the current state of each server, client, and virtual channel of the ATM device, ATMARP, and control the same. In addition, the statistics management function measures the input and output packet statistics through each interface of the ATM device, the statistics such as requests and errors input and output from the ATMARP server and the client, and the packets discarded for various reasons on the virtual channel. This is to control it.

For configuration management, the IP Over ATM Management Information Base (MIO) includes a group of logical IP subnets (LIS), ATMARP server groups, ATMARP client groups, persistent virtual channels (PVC), and virtual channels (VC). Group, and management information base (MIB) for ATM interface group and ATM adaptation layer type 5 (AAL-5) connection performance statistics group are set in ATM-MIB, and corresponding information is transmitted according to network manager's request. Or modify the function. Also, by designing and implementing a new management information base (MIB) for configuration information of ATM interfaces, configuration management of ATM devices is made possible. In the case of state management, it refers to the function of transmitting the state information in the above-mentioned management information base (MIB) according to the request of the network administrator.In the case of statistics management, the number of requests requested or discarded by the ATMARP server and the client respectively, It stores the number of packets input and output through the interface, and the packets transmitted or discarded through each virtual channel in the management information base (MIB), and transmits the corresponding statistical information as requested by the administrator.

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

1 is an overall configuration diagram of a system to which the present invention is applied, and an ATM network configured using IP over ATM includes an ATMARP client and an ATMARP server. Both nodes then form a subnetwork of logical internet protocols called logical IP subnets (LISs). This logical IP subnet (LIS) may be configured in plural within the ATMARP server. The SNMP management agent implemented in the present invention is located in both nodes.

2 is a software block diagram of a management agent according to the present invention.

The management agent parses the management information base (MIB) files in the node at system startup and stores the schema for the management information in the MIB schema 26. In addition, information about each parsed MIB file is read through the kernel, and a value thereof is stored in a management information base (MIB) database. The Basic Encoding Rule (BER) module 23 and the Abstract Syntax Notation (ASN) module 24 decode the SNMP Protocol Data Unit (PDU) from which the request comes from the management system. Analyze The protocol analysis module 22 then interprets the relevant variables in the protocol data unit (PDU) and sends corresponding MIB information from the MIB database stored by the IPOA management module 28 and the ATM device management module 27. The response is then sent to the management system that issued the request.

3 is an overall flowchart according to the present invention.

First, when receiving a message in the SNMP message receiving unit, the received message is analyzed by the protocol analysis module (101). The SNMP protocol data unit consists of service identifiers, communities, variables, and so on. The service identifier is for distinguishing whether the request retrieves a value (Get, GetNext, GetBulk), or sets a value (Set). Community means access rights, and access to MIB information is restricted according to this community. In addition, the variable refers to the variable name of the actual MIB information, and consists of a value called an Object Identifier (OID). This variable determines management information. After analyzing the received message, the management target is determined according to the variable name in the received message. Each managed object of the IPOA information is stored in the IPOA MIB by the IPOA management module.

As a result of analyzing the message, if the received information is interpreted as IPOA information (102), first, the MIB database stored by the IPOA management module is searched. Currently implemented IPOA information is LIS information, ATMARP client information, ATMARP server information, virtual channel (VC) information, permanent virtual channel (PVC) information.

If the received information is LIS information (103), the IP over ATM application retrieves the information of the LIS table including the information about all LIS implemented and stored in the present invention for management purposes (104), and then retrieves an appropriate SNMP message. After generating (120), the generated message is transmitted (121), and ends.

If the received information is ARP client information (105), the ATMARP kernel is retrieved (106), an appropriate SNMP message is generated (120), then the generated message is sent as a response message (121), and the program terminates. do.

If the received information is ATMARP server information (107), it retrieves the ATMARP kernel (108), generates an appropriate SNMP message (120), then sends this generated message as a response message (121), and terminates the program. do.

If the received information is virtual channel (VC) information (109), the VC kernel is searched (110), an appropriate SNMP message is generated (120), and the generated message is transmitted as a response message (121). To exit.

If the received information is permanent virtual channel (PVC) information (111), the PVC kernel is searched (112), an appropriate SNMP message is generated (120), and the generated message is sent as a response message (121). , Exit the program.

If the received information is interpreted as ATM device information rather than IPOA management (113), first, the MIB database stored by the ATM management module is searched. The information of the currently implemented ATM device consists of ATM interface information and AAL5 statistical information. When the information is requested from the management system, the corresponding kernel is read and responded in real time.

If the information is ATM interface information (114), in the IP over ATM application retrieves the interface information implemented and stored in the present invention for management purposes (115), generates an appropriate SNMP message (120), and then generates The message is sent as a reply message (121), and the program ends.

If the information is AAL5 statistical information (116), the AAL5 kernel is searched (117), an appropriate SNMP message is generated (120), then the generated message is sent as a response message (121), and the program terminates.

If the received information is interface management information rather than ATM device information (118), interface configuration information) is retrieved (119), then an appropriate SNMP message is generated (120), and the generated SNMP message is used as a response message. Transfer 121, and end the program. Meanwhile, if the received information does not correspond to any information, an unknown message appears. Therefore, an appropriate SNMP message is generated (120), and the generated message is transmitted as a response message (121). Quit the program.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

According to the present invention made as described above, in the conventional case, when configuring the ATM LAN using IP over ATM, by managing a variety of information on the ATMARP server or client remotely using the Internet standard network management protocol (SNMP), IP In ATM networks using overATM, the flow, configuration, status and statistical information of the entire network can be measured efficiently.

Claims (2)

In the network management method in a server-client network using an ARP (ATM) address resolution protocol (ARP), Analyzing a protocol of the received message; If the received message is logical IP subnet (LIS) information of IP over ATM management information, the logical IP subnet table is searched, and a simple network management protocol message corresponding thereto is generated and transmitted. Second step; If the received message is client or server information of IP over ATM management information, searching for a kernel of ATMARP, generating a simple network management protocol message corresponding thereto, and transmitting the same; A fourth step of searching for a virtual channel kernel, generating a simple network management protocol message corresponding thereto, and transmitting the received virtual channel information if the received message is virtual channel information of IP over ATM management information; If the received message is permanent virtual channel information of IP over ATM (IP over ATM) management information, a fifth step of searching for a permanent virtual channel kernel, generating a corresponding simple network management protocol message, and transmitting the corresponding virtual channel kernel; ; If the received message is interface information of ATM management information, searching for interface information, generating a simple network management protocol message corresponding thereto, and transmitting the same; If the received message is ATM adaptation layer information of ATM management information, searching for an ATM adaptation layer kernel, generating a simple network management protocol message corresponding thereto, and transmitting the same; And An eighth step of retrieving interface configuration information, generating a simple network management protocol message corresponding thereto, and transmitting the received interface management information; A method for managing a network in a server-client network using an asynchronous delivery mode (ATM) address resolution protocol (ARP) comprising a. On your computer, Analyzing the protocol of the received message; If the received message is logical IP subnet (LIS) information of IP over ATM management information, the logical IP subnet table is searched, and a simple network management protocol message corresponding thereto is generated and transmitted. function; If the received message is client or server information of Internet Protocol (IP) over IP (IP Over ATM) management information, searching for a kernel of the ATMARP, generating a simple network management protocol message corresponding thereto, and transmitting the same; If the received message is virtual channel information of IP over ATM management information, searching for a virtual channel kernel, generating a simple network management protocol message corresponding thereto, and transmitting the virtual channel kernel; If the received message is permanent virtual channel information of Internet Protocol (IP) over IP (IP Over ATM) management information, searching for a permanent virtual channel kernel, generating a simple network management protocol message corresponding thereto, and transmitting the message; If the received message is interface information of ATM management information, searching for interface information, generating a simple network management protocol message corresponding thereto, and transmitting the same; If the received message is ATM adaptation layer information of ATM management information, searching for an ATM adaptation layer kernel, generating a simple network management protocol message corresponding thereto, and transmitting the same; And If the received interface management information, the function to retrieve the interface configuration information, generate a simple network management protocol message corresponding thereto, and transmit it A computer-readable recording medium having recorded thereon a program for realizing this.