KR100428764B1 - Equipment monitoring system and method in asynchronous transfer mode - Google Patents

Abstract

The present invention is a subscriber and subscriber, subscriber and subscriber server, or one or more equipment (cell) connecting the subscriber server and subscriber server, the EMS to detect the operation state of each cell and instructs the operation corresponding to each cell if necessary EMS, connected to the EMS, checks the operation of each EMS and instructs to transmit management information about the cell and EMS, if necessary, using a predetermined configurable period and its own algorithm Equipment of an ATM exchanger equipped with NNM that performs auto discovery function to periodically discover new equipment (cells) and check whether the equipment has already been discovered and keeps the information in its own database. In the monitoring system, the EMS has an IP module, which is connected to the NNM's database and contains the device identifier. Device search unit for retrieving information about a device, an event receiving unit for receiving an event generated for the device that the NNM adds, deletes, and changes the state, the state of the device that the IP module is running or managed during the first operation When is changed, provides the equipment monitoring system of the ATM switch including a equipment update unit for updating the changes in the equipment file of the EMS.

Description

EQUIPMENT MONITORING SYSTEM AND METHOD IN ASYNCHRONOUS TRANSFER MODE

The present invention relates to an asynchronous transfer mode (hereinafter referred to as ATM) exchange equipment monitoring system and method, and more particularly to a host name, an address (IP ADDRESS), and an operation for one or more cells that are connected equipment in the ATM exchange. A system and method for providing information such as status.

In general, an ATM switch detects the operating state of a subscriber and a subscriber, a subscriber and a subscriber server, or one or more equipment (cells 100) connecting the subscriber server and a subscriber server, each cell and, if necessary, corresponds to each cell. An element management system (hereinafter referred to as EMS) for instructing an operation and an NMS connected to the EMS for checking the operation of each EMS and instructing to transmit management information about the cell and the EMS if necessary ( Network Management System, hereinafter referred to as NMS, 120).

The EMS 110 receives a plurality of management information from each cell in order to detect an operation state of each cell, and the management information includes fault management related to functions such as fault detection, fault isolation, fault recovery, and the like. Management information, Performance Management information to evaluate whether the system works properly through continuous monitoring and reporting, Configuration Management information to monitor and report the operation status of various components in the system, and data related to information use. Accounting management information to collect the information, and traffic management information which is a key element technology required to protect the system from congestion and to efficiently satisfy the quality of service (QoS). .

At this time, the transmission protocol (PROTOCOL) 101 of the management information mainly adopts a user datagram protocol (hereinafter referred to as UDP) or an ICMP (hereinafter referred to as ICMP).

The UDP is a communication protocol that provides only limited service when messages are exchanged between computers in a network using IP, and unlike the Transmission Control Protocol (TCP), the message is divided into packets (datagrams). It does not provide services such as reassembly on the other side, and especially does not provide the order of arriving data packets. Thus, if the messages do not arrive in sequence in the system where the message was received, the EMS cannot grasp the content of the message.

In addition, like the UDP, the ICMP, which is a protocol for controlling a message and reporting an error between a host server and an Internet gateway, has a high probability of losing a message. This frequently occurs especially when there is a lot of network traffic.

In order to reduce the loss of the message, as shown in FIG. 1, the discovery of new equipment (cell) and the operation of the already discovered equipment are performed periodically using a specific cycle and its own algorithm settable in the EMS 110. The network node manager, NNM, is a proven tool that performs the Auto Discovery function and checks information in its own database and displays it in a network map. A communication system for allowing the EMS 110 to interoperate within the NNM 130 is applied to the ATM switch.

The NNM 130 is mainly known for the open view (Often View) of the Hewlett-Packard company, the open view transmits a part of the management information obtained while performing the auto-discovery function to the EMS 110 to the EMS ( Share with 110).

However, the EMS 110 is also implemented to determine the operation of the equipment to be managed in order to receive the management information, such as the automatic discovery function of the NNM 130. Accordingly, since the auto discovery function of the open view and the management information reception function of the EMS 110 require the transmission of a message to the device in order to obtain the management information, the received message is not only different from each other, Double transmission is required for transmission and reception.

Thus, this acts as a deterrent to the communication system due to the nature of the ATM exchange which requires quick control of the equipment.

In order to solve the above problems, the present invention performs an auto discovery function of NNM to grasp the operation status of equipment so that EMS can receive a message for management information, thereby reducing the network load. To provide. In addition, the addition, modification, and deletion of equipment can be controlled by the NNM, thereby reducing the load on the EMS and improving performance in the entire communication system.

Thus, faster transmission of the management information and faster control of the equipment can be performed.

1 is a schematic diagram illustrating a conventional method for monitoring equipment.

2 is a schematic diagram illustrating a method for monitoring equipment according to an embodiment of the present invention.

3 is a flowchart illustrating a method for monitoring equipment according to an embodiment of the present invention.

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

100 ATM Switching Equipment (Cell)

101 Communication Protocol (UDP or ICMP)

110 EMS (ELEMENT MANAGEMENT SYSTEM, EMS)

111 IP Module 112 Device Search

114 Event Receiver 116 Equipment Updater

120 NMS (NETWORK MANAGEMENT SYSTEM, NMS)

130 yen (NETWORK NODE MANAGER, NNM)

In order to achieve the above object, the present invention provides a subscriber and subscriber, one or more devices (cells) connecting to the subscriber and subscriber server or subscriber server and subscriber server, and detects the operation state of each cell and corresponds to each cell if necessary. Element Management System (EMS) instructing the operation of the operation, connected to the EMS (EMS) to check the operation of each EMS and, if necessary, to transmit the management information for the cell and EMS (Network Management System, NMS), and the auto discovery function which periodically checks the discovery of new equipment (cell) and the operation of the already discovered equipment by using a predetermined configurable period and its own algorithm, and obtains information about this. In the equipment monitoring system of an ATM exchanger having an NM (Network Node Module) stored in its own database, the E The MS includes an IP module, wherein the IP module is connected to the NNM's database to search for information about a device including a device identifier, and a device search unit for the NNM to add, delete, and change state. A device monitoring system of an ATM switch including an event receiver for receiving an event and a device updater for updating the changed contents to the equipment file of the EMS when the state of the equipment managed during the operation or operation of the IP module is changed for the first time. to provide.

In the ATM switch, the equipment monitoring method includes the EMS having an IP module and setting a device identifier of a device to be managed using a data file or a parameter when the IP module is initially started, the NNM. Connecting to a database of the device; extracting an object corresponding to the device name corresponding to the device identifier from the database; and retrieving a current state of each of the extracted objects, thereby obtaining a host name and an IP address of the object. And storing management information such as a current state.

In addition, in the ATM switch, when the IP module receives a trap corresponding to the addition, deletion, and operation state change event of the equipment, the equipment identifier of the trap is adopted to extract the equipment identifier of the corresponding object. Step, determining whether the extracted equipment identifier is the same as the initially set equipment identifier, and if it is not the same or if not, returning, if the equipment is the same as the initially set equipment identifier and the status of the equipment is changed, update the corresponding file of the EMS Follow the steps.

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

Referring to FIG. 2, an ATM switch according to an embodiment of the present invention includes one or more pieces of equipment 100, an EMS 110, an NMS 120, and an NNM 130. Duplicate description of each component having the same reference numeral as that of FIG. 1 shown in FIG. 2 will be avoided.

The EMS 110 includes an IP module of the EMS 110 employing the auto discovery function of the NNM 130 to eliminate transmission of redundant management information, and the IP module is a database of the NNM 130. Connect to (not shown) receives a device search unit 112 for searching for information about the device, including the device identifier, the event generated for the device that the NNM 130 adds, deletes, and changes the status The event receiver 114 and the device update unit 116 for updating the changed contents to the equipment file of the EMS 110 when the state of the equipment managed during the first operation or operation of the IP module is changed. .

As shown in FIG. 2, in the monitoring system of the ATM switch according to the present invention, the equipment 100 transmits management information only to the NNM 130, and the NNM 130 transmits the received management information to the EMS 110. send. Therefore, since the management information previously transmitted to the NNM 130 and the EMS 110, the equipment 100 only transmits only to the NNM 130, the load of the network in the transmission of the management information, In addition, since the loss rate of the message is much smaller than that of the EMS 110, the NNM 130 transmits accurate management information and enables quick control of the equipment.

Referring to the operation of the IP module in more detail as follows.

Referring to Fig. 3, the operation during the first driving will be described. First, a device identifier of a device to be managed using a data file or a parameter is set (S10), and the NNM 130 is connected to an open view database (S20). Subsequently, an object corresponding to the device name that matches the device identifier is extracted from the database (not shown) (S30). In this case, the NNM 130 performs an auto discovery function to extract only the necessary objects from the contents already searched. The IP address and host name are searched for each extracted object, and if the IP address of the device is registered, the host name is searched. If not, the IP address is searched. In this way, the host name and IP address are extracted.

Next, the current state is retrieved for each of the extracted objects, and information such as a host name, an IP address, and a current state of the object is stored (S40). At this time, the EMS 110 connects to the NNM 130 and receives information such as addition / deletion / operation state change of equipment transmitted while the NNM 130 performs an auto discovery function.

When the IP module receives a trap, that is, when a device addition, deletion, and operation state change event occurs, the device ID of the corresponding object is extracted by employing the device ID of the trap (S60). It is determined whether the extracted equipment identifier is the same as the equipment identifier set initially, and if it is not the same or returns, it returns (S70). If the same equipment as the initially set equipment identifier and the state of the equipment has been changed, the corresponding file of the EMS (110) is updated (S80).

As described above, the IP module of the EMS 110 includes the device searching unit 112, the event receiving unit 114, and the device updating unit 116 and operates in each operation described above. Accordingly, the management information received from both the NMM 130 and the EMS 110 performs only the auto discovery function of the NMM 130 to receive the management information, thereby reducing the load on the network and providing quick control of the equipment. Can be done.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

As described above, the present invention employs an equipment monitoring system and method for transmitting management information about equipment to an EMS through an NNM in an ATM switch, thereby reducing network load and performing quick control of the equipment.

Claims (3)

Subscriber and Subscriber, Subscriber and Subscriber Server, or one or more equipment (cells) connecting Subscriber Server and Subscriber Server, Element to detect operation status of each cell and instruct operation corresponding to each cell if necessary Management System (EMS), a Network Management System (NMS) connected to the EMS for checking the operation of each EMS and instructing to transmit management information about the cell and the EMS if necessary, and a predetermined configurable period and It uses its own algorithm to perform Auto Discovery, which periodically checks for the discovery of new equipment (cells) and the operation of already found equipment, and stores information in its own database. In the equipment monitoring system of an ATM switch having a Network Node Module (NNM), The EMS has an IP module, the IP module A device search unit connected to the NNM's database and searching for information on a device including a device identifier; An event receiver configured to receive an event generated by the NNM with respect to a device for adding, deleting, and changing a state; And a device update unit for updating the changed contents to the equipment file of the EMS when the state of the equipment managed during the operation or the operation of the IP module for the first time is changed. Subscriber and Subscriber, Subscriber and Subscriber Server, or one or more equipment (cells) connecting Subscriber Server and Subscriber Server, EMS to detect operation status of each cell and instruct operation corresponding to each cell if necessary, EMS Connected to the NMS to check the operation of each EMS and to transmit management information about the cell and the EMS, if necessary, and to discover new equipment (cells) using a predetermined configurable period and its own algorithm. In the ATM monitoring equipment monitoring system having an NNM that performs the auto discovery function to periodically check whether the found equipment is operating and stores information in its own database, the EMS is provided with an IP module, the IP When the module is first run Setting a device identifier of a device to be managed using a data file or a parameter; Connecting to the NNM's database; Extracting an object corresponding to a device name that matches the device identifier from the database; And retrieving a current state of each extracted object, and storing management information such as a host name, an IP address, and a current state of the object. The method of claim 2, wherein when the IP module receives a trap corresponding to an event of adding, deleting, or changing an operation state of the equipment, Extracting a device identifier of a corresponding object by employing a device ID of the trap; Determining whether the extracted equipment identifier is the same as the equipment identifier initially set, and returning the equipment identifier that is not the same or not; If the device is the same as the initially set device identifier and the state of the device is changed, updating the corresponding file of the EMS.