KR100194954B1 - System Initialization Method by Network Manager in Asynchronous Transmission Mode Local Area Network System - Google Patents

Abstract

The local area network using the conventional TCP / IP protocol solves the trouble of an operator having to control power manually or reset a module in case of an error. The present invention is to initialize the system by the network manager of the ALAN-BS system that performs the communication using ATM technology to operate the ATM local area network device unattended, and to initialize a specific part or the whole system at a remote location A system initialization method is disclosed by a network manager in an asynchronous transmission mode (ATM) local area network (LAN).

Description

System Initialization Method by Network Manager in Asynchronous Transfer Mode (LAN) System

The present invention relates to an Asynchronous Transfer Mode (hereinafter referred to as ATM) local area network (hereinafter referred to as LAN) system, and more particularly to a system initialization method by a network manager in an ATM-LAN system.

Conventional LANs use the Transmission Control Protocol (hereinafter referred to as TCP) / Network Protocol (Internet Protocol: referred to as IP) to communicate with each other, and the physical transport layer used at this time is mainly Ethernet (Ethernet). Was. At this time, if a failure occurs in a specific device, the operator directly accesses the corresponding device to control the power of the device, or reset the module in which the failure occurs. We used a method of initializing the system. In this case, the operator operating the system always had the inconvenience of being able to directly check whether the system is operating normally, but in this case, even if a failure occurs, the physical transmission speed was not high speed, so data loss I could afford to. However, in a LAN using ATM technology instead of TCP / IP, the transmission speed is tens or hundreds of times faster than the previous transmission rate. Therefore, when a failure occurs, the time required to initialize the device is very high. Data loss has occurred. Therefore, in this case, there is a need for a remote network manager to easily check the device failure and to control the remote site to initialize the system partially or entirely.

Accordingly, an object of the present invention is to provide a method for easily identifying a fault of a specific device by a network manager operating at a remote location, and also providing a method for initializing a specific part or whole of the system by controlling the remote control.

According to an aspect of the present invention, there is provided a method of receiving data in one of a layer management access block and a network management system, determining a type of the received data, and determining a result of the received data type. Recognizing that the simple network management protocol message has been received if not the system failure information, and analyzing the failure information in the case of system failure information according to the determination result of the received data type; Determining whether it is possible to process the system internally by the computer, and if the system fault management unit processes the system failure information after the system is able to process the system according to the determination result, terminating the process; Search system data and extract related items And extracting the related items, constructing a simple network management protocol message, transmitting the configured simple network management protocol to a network administrator, and terminating the network; and interpreting the recognized simple network management protocol message. Checking, by the security inspecting unit, the interpreted simple network management protocol, determining whether the security inspection in the security inspection unit has passed, interpreting a command when the security inspection passes, and interpreting the analysis. Determining whether the specified instruction indicates partial initialization; performing partial initialization in the partial initialization execution block when the partial initialization is instructed according to a determination result of the partial initialization; If the whole initialization is instructed according to the judgment result, the entire system initialization execution block Performing a complete system initialization, retrieving respective system data after completion of the partial and total system initialization, constructing a simple network management protocol message using the retrieved system data, and configuring the configured simple network management Terminating after transmitting the protocol to the network manager; retrieving security-related data if the security check unit does not pass the security check; and constructing a simple network management protocol message by using the retrieved security-related data. And terminating after transmitting the configured simple network management protocol to the network manager.

1 is a structural diagram of an ATM-LAN backbone system (ALAN-BS) to which the present invention is applied.

2 is a structural diagram of a system control processing block (SCPB) to which the present invention is applied.

3A and 3B are process flow diagrams in a system management function block (SMFB) in accordance with the present invention.

* Explanation of symbols for main parts of the drawings

11: System Control Processing Block (SCPB)

12: ATM Backbone Interface Module (ABIM)

13: ATM Cell Switch Module (ACSM)

21: Layer Management Interface Block (LMIB)

22: System Management Function Block (SMFB)

23: Signaling Block (SIGB) / PNNI Routing Block (PNRB)

24: Man Maching Interface Block (MMIB)

25: Address Registration Function Block (ARFB)

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

1 is a structural diagram of an ATM-LAN backbone system (ALAN-BS) to which the present invention is applied. As shown, the user's data is input through any one of a plurality of ATM Backborn Interface Modules (ABIMs) 12 blocks and according to each destination ATM Cell Switching Module. It is switched in block 13 and transmitted to the corresponding ABIM 12. In order to transfer the data of these users, the System Control Process Block (hereinafter referred to as SCPB) 11 includes functions for directly controlling the ABIM 12 and the ACSM 13 hardware. (Operation And Maintenance; OAM), communication with the operator who operates the ALAN-BS system, signaling and routing, system management, address registration, etc. In addition, it is transmitted to the Network Management System (NMS) and the console (console), and its functional block is shown in FIG.

2 is a structural diagram of a system control processing block (SCPB) to which the present invention is applied. As shown, a Man Machine Interface Block (hereinafter referred to as MMIB) 24 performs a communication function with an operator operating an ALAN-BS system through a console terminal. In addition, data generated by the operator's instructions are also referred to as a System Management Function Block (hereinafter referred to as SMFB) 22, a Signal Block (hereinafter referred to as SIGB) / Routing Block (hereinafter referred to as SIGBB). PNRB) (23), Address Registration Function Block (hereinafter referred to as ARFB) (25), and transmits the data from each block to interpret and report to the operator do.

The SMFB 22 interprets the data sent from the MMIB 24 according to the operator's instructions and executes the indicated command, and the hardware-related information is referred to as a Layer Management Interface Block (hereinafter referred to as LMIB) (21). Send through). It also sends and receives messages with the SIGB / PNRB 23 and ARFB 25 to allocate resources of the system and to isolate the failed area or release it when recovering. It is also a functional block on which the initialization method according to the invention is executed.

The SIGB / PNRB 23 interprets and executes the signal-related data presented through the LMIB 21 and performs the functions for routing and displays the information related to the SMFB 22, the MMIB 24, and the ARFB 15. Communicate with

The ARFB 25 registers the address of the corresponding device when a new subscriber device is connected, and releases it when the connection is lost. In addition, it performs a function of exchanging related information through the MMIB 24, the SMFB 222, and the SIGB / PNRB 23, and interprets and organizes the information displayed through the LMIB 21.

The LMIB 21 inputs data from ABIN or ACSM and transmits it to the SMFB 22, SIGB / PNRB 23, and ARFB 25 according to the type of data, and receives the processed data in each functional block. Send back to ABIM or ACSM.

3A and 3B are flowcharts of processing in a system management function block according to the present invention. Its implementation is as follows. When the program is executed, data is received from the LMIB or a network management system (NMS) (301). The received data includes system failure information and Simple Network Management Protocol (SNMP) messages. In addition, the system failure information includes hardware failure information and software failure information. It is determined whether the type of the received data is system failure information. (302) According to the determination result, failure information is analyzed in the case of system failure information (304), and if it is not system failure information, Simple Network Management Protocol Recognize that the message is received (hereinafter referred to as SNMP) (303). Analysis 304 of the failure information is to analyze the type and location of the failure. The results of the analyzed failures are determined to determine whether they can be processed internally in the system (305). If the processing is possible, the system failure management unit processes it (307) and ends. If processing is not possible, the system data (MIB) is retrieved (306) for delivery to the network manager, and related items are extracted. After configuring the SNMP message (308), and sends it to the network manager (309) and terminates.

When the SNMP message is received (303), the SNMP is first interpreted (310). This uses a conventional SNMP protocol interpreter. Thereafter, the security checker checks this to determine whether the normal network manager has instructed it (311). This is to ensure that only qualified users who can initialize the device can do so. It is determined whether the security check has passed (312), and if passed, the command is interpreted (313). If the security check is not passed, the security related data (MIB) is retrieved (320) and then configured using the SNMP message (321), it is transmitted to the network manager (322) and terminated. This means that there is a place that commands illegal initialization to the system, and sends it to the normal network manager to take action. After passing the security check and interpreting the command, it is determined whether the interpreted command indicates partial initialization (314). When the partial initialization is instructed as a result of the determination, the partial initialization is executed in the partial initialization execution block (315). In this case, the hardware device is instructed to initialize, and after the initialization is completed, the hardware device receives a completion message. In the case of instructing overall initialization rather than partial initialization, the entire system initialization is executed in the entire system initialization execution block (316). In this case, the whole system hardware device is instructed to initialize, and when the initialization is completed, it is responsible for receiving a completion message from each piece of hardware. When partial and total system initialization is completed, each system data (MIB) is retrieved (317), an SNMP message is constructed using this (318), and transmitted to the network manager (319) and terminated. All data used at this time is defined in advance as a Management Information Base (MIB).

As described above, according to the present invention, a network manager can execute the initialization of a corresponding device by using an ALAN-BS system that performs communication using ATM technology, which enables unmanned operation, and failure of a specific hardware or the entire system. If this occurs, the network manager can detect this and direct the initialization of a particular piece of hardware or the entire system.

Claims (1)

Receiving data in any one of a layer management access block and a network management system, determining the type of the received data, and simple network management if the system failure information is not based on the determination result of the received data type Recognizing that the protocol message has been received, analyzing the failure information in the case of system failure information according to the determination result of the received data type, and determining whether the system can be processed internally by the analyzed failure information. And terminating after processing the system failure information in the system failure management unit if it is possible to process the system internally according to the determination result, and extracting related items by searching system data if the system failure cannot be processed internally according to the determination result. And extracting the related items. Constructing a simple network management protocol message, sending and ending the configured simple network management protocol to a network administrator, interpreting the recognized simple network management protocol message, and interpreting the analyzed simple network management protocol Inspecting the security checker, determining whether the security checker passes the security check, interpreting the command when the security checker passes, and determining whether the interpreted command indicates partial initialization. Performing partial initialization in accordance with the determination result of the step and determining whether the partial initialization is instructed; performing partial initialization in the partial initialization execution block; and instructing overall initialization in accordance with the determination result of instructing the partial initialization. Performing a full system initialization in a full system initialization execution block, Retrieving each system data after the partial and system initialization is completed; constructing a simple network management protocol message using the retrieved system data; and transmitting the configured simple network management protocol to a network manager and ending And retrieving security-related data if the security check unit fails the security check, constructing a simple network management protocol message using the retrieved security-related data, and networking the configured simple network management protocol. A method of initializing a system by a network manager in an asynchronous transmission mode (ATM) local area network (LAN), characterized in that the step of terminating after transmitting to the administrator.