KR100431192B1 - An EMS for operating a management and operating information of an ATM-PON Access Network - Google Patents

Abstract

The present invention relates to a device management system for managing asynchronous transmission mode-passive fluorescence subscriber network (ATM-PON network) operation management information, the present invention in the operation management and maintenance of the communication device constituting the ATM-PON access network The present invention relates to a device management system for managing ATM-PON access network operation management information for transmitting operation management information without using standardized TMN technology. To this end, the present invention is a device management system for managing ATM-PON access network operation management information, the web receiving the operation management information from the client and performs authentication of the ATM-PON network operator connected through the client A server management unit, an IPC message distribution unit for analyzing and distributing interprocess communication (IPC) messages for operation management information transmitted through the web server management unit for each function, and configuration management and ATM of the ATM-PON network management system. A configuration management unit performing a PON access network connection management function, a failure management unit performing a failure management function of the ATM-PON network management system, a performance management unit performing a performance management function of the ATM-PON network management system, And a database manager that stores and manages operation management information processed by the at least one manager.

Description

Asynchronous transmission mode-device management system for managing passive fluorescence subscriber network operation management information {An EMS for operating a management and operating information of an ATM-PON Access Network}

The present invention relates to a device management system for managing asynchronous transmission mode-passive fluorescence subscriber network operation management information, and more specifically, already standardized telecommunication management network (TMN) or simple network Manages Asynchronous Transfer Mode-Passive Optical Network (ATM-PON) (hereinafter, ATM-PON) without following the Management Protocol (SNMP; Simple Network Management Protocol (SNMP)). The present invention relates to a device management system for managing asynchronous transmission mode-passive fluorescence subscriber network operation management information for exchanging operation management and maintenance information required for communication.

Recently, due to the rapid development of information and communication, the management of network environment is becoming more complicated and difficult. Furthermore, the management of ATM-PON access network, which provides various types of communication services through various interfaces, is given to network operators. The load is getting bigger.

Therefore, the development of network management system that easily shows the operation status of the network environment and suggests solutions through problem analysis has been a constant requirement of users, and the development of TMN technology is one of the solutions to these problems. It is accepted as an alternative. The TMN is a standardized network management structure proposed to provide management functions for communication networks and services and communication between the networks and services, and facilitates smooth exchange of network management information between various types of network management systems and heterogeneous communication equipment. Provides a standardized interface for The basic concept of the TMN is to provide a structured standard architecture for the exchange of management information using a standardized interface between various kinds of management systems and communication equipment.

In the case of conventional ATM-PON network operation management, generally, standardized TMN technology is used for telephone (PSTN) service, Integrated Services Digital Network (ISDN) service, broadcasting (CATV) service, leased line service, and video on demand (VOD) service. Various communication services are provided to service subscribers. As various communication devices and the latest access technologies are used for this purpose, operation management and subscriber management of the communication devices constituting the ATM-PON network are complicated.

However, using TMN-based network management functions requires the use of standardized products, resulting in economical additional costs, and also affects the operating system. In addition, by additionally demanding commercialized TMN development tools, it becomes an economic burden in terms of development cost and maintenance, which brings additional costs to the ATM-PON access network, and accordingly, equipment for operating the operation management system is also a considerable burden. . In particular, recently, in the case of a device management system, the trend is not to use a standardized management method.

Meanwhile, various methods for maintaining a subscriber network in an operation management system of the subscriber network are disclosed. As an example of this, Korean Patent Application No. 1999-40369 describes a subscriber network operation management system in which an interface protocol for test commands is defined in a SLMOS tester using a subscriber line of a subscriber network. A test command interfacing method is disclosed in Korean Patent Application No. 1999-42932, which discloses an integrated test command interfacing in a broadband subscriber network operation management system that allows an operator to operate the device without distinguishing the type of device. An integrated test command interfacing method in an operation management system is disclosed. However, the above two methods suggest a method of interfacing the test function in the ADSL (Asymmetric Subscriber Line) network.

In addition, Korean Patent Application No. 191-21146 discloses an integrated management method for maintenance of a broadband subscriber network such as an ADSL subscriber network in an integrated management system of a broadband subscriber network, but the method also manages a test function of an ADSL subscriber network. Is to run network maintenance. As such, the conventional network operation method does not fundamentally solve the above problems caused by the standardization of communication methods.

In order to solve the above problems, the present invention is to maintain the consistency of the operation management information of ATM-PON access network without using a standardized TMN technology, TCP / IP and UDP / IP that can be easily operated and maintained The purpose of the present invention is to provide a device management system for managing asynchronous transmission mode-passive fluorescence subscriber network operation management information independent of the communication method based on the network.

1 is a block diagram according to an embodiment of an ATM-PON according to the present invention.

2 is a structural diagram according to an embodiment of an apparatus management system (EMS) according to the present invention.

3 is a detailed structural diagram of an EMS server according to an embodiment of the present invention.

4 is a structure according to an embodiment of an operation management information packet used between an EMS client and an EMS server according to the present invention.

5 is a detailed configuration diagram according to an embodiment of the ATM-PON access network operation management and maintenance unit according to the present invention.

6 is a structure according to an embodiment of an operation management information packet used between an EMS server, an ATM-PON operation management and maintenance unit, and an ATM-PON device monitoring and control unit according to the present invention.

Explanation of symbols on the main parts of the drawings

100: ATM-PON access network 101: home device

102: optical distribution network 103,104: station device

201: EMS client 202: EMS server

203: ATM-PON access network operation management and maintenance department

204: Internet 205: TCP / IP communication

301: Web server management unit 302: IPC message distribution unit

303: configuration management unit 304: failure management unit

305: performance management unit 306: system connection

307: database management unit 403,603: operation management information packet

501: ATM-PON network IPC message processing unit 502: ATM-PON network configuration management unit

503: ATM-PON network connection management unit 504: ATM-PON network performance management unit

505: ATM-PON network failure management unit 506: ATM-PON network test management unit

507: ATM-PON network subscriber management unit 508: ATM-PON network operation information management unit

509: ATM-PON network device monitoring and control unit 510: ATM-PON network IPC message communication unit

In order to achieve the above object, the present invention provides an ATM for managing or exchanging asynchronous transmission mode-passive optical subscriber network (ATM-PON) operation management information for a request of a device management system (EMS) client and interpreting and processing an operator request. A device management system for managing asynchronous transmission mode-passive fluorescent subscriber network operation management information by exchanging the operation management information with a PON network operation management and maintenance means,

A web server manager which receives operation management information from the client and executes authentication of the ATM-PON network operator connected through the client;

An IPC message distribution unit for analyzing the interprocess communication (IPC) message for the operation management information transmitted through the web server management unit and distributing the corresponding function by corresponding function;

A configuration management unit configured to perform configuration management of the ATM-PON network management system and ATM-PON access network connection management function;

A failure management unit that performs a failure management function of the ATM-PON network management system;

A performance management unit performing a performance management function of the ATM-PON network management system; And

And a database manager that stores and manages operation management information processed by the at least one manager.

Preferably, the operation management information includes an identifier of the client, a requirement of the operator, an identifier of the ATM-PON network requesting any function, an identifier of the side requesting the function, an ATM- requesting the function. An identifier of a PON network, an identifier of a side performing the requested function, an identifier identifying the requested function and whether the information is a request, a response, or a notification, and information indicating the size of the entire operation management information packet.

The present invention relates to an ATM-PON network operation management system for efficiently managing and managing a plurality of mother station devices and local station devices constituting an ATM-PON network.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 is a block diagram of an ATM-PON access network to which the present invention is applied, and shows an embodiment of an internal configuration and an access configuration of the ATM-PON access network 100. As shown in Fig. 1, the ATM-PON access network 100 includes one mother station apparatus (ATM-PON access network, OLT) 101 which is a network side apparatus, and a local station apparatus (ATM-) which is a subscriber side apparatus. PON access network (ONU) (103,104) and the home station device 101 and the local station (103,104) and the optical distribution network (ATM-PON access network, ODN) (102) that serves as an optical transmission medium. Here, the optical distribution network 102 serves to distribute optical signals between the home station apparatus 101 and the local station apparatuses 103 and 104, and preferably, time division multiplexing (TDM), wavelength division multiplexing (WDM), and the like. Using the same multiplexing method and a PON optical slitter, a plurality of local station devices 103 and 104 are connected to one mother station device 101 to form a passive fluorescence subscriber network. The local station devices 103 and 104 are connected to the mother station device 101 in a tree structure.

In addition, the mother station apparatus 101 and the host apparatuses 103 and 104 are connected to each other via an STM-1 or STM-4 class line 114 to transmit an optical signal using an optical wavelength of 1550 nm downward. Upward, the optical signal is transmitted using an optical wavelength of 1310 nm, and the number of local devices 103 and 104 connected to one mother station device 101 is determined according to the branching ratio of the optical distribution network 102. Connected.

The mother station apparatus 101 and the ATM exchanger 105, the broadcast service node 106, the on-demand video server 107, and the internet service node 108 are connected by using an STM-1 class line 112, The mother station apparatus 101, the ISDN switch 109, and the telephone switchboard 110 are connected using an E1 line 113.

All domestic devices may be connected to the subscriber via a modem (eg, a VDSL modem or an ADSL modem) or have a regular telephone connection (116).

A device management system (EMS) used for the operation management and maintenance of the ATM-PON access network 100 is mounted in a workstation equipment separate from the home station apparatus 101 or the home station apparatus 103, 104, and the ATM-PON. In charge of the overall operation management and maintenance of the access network (100). Through the ATM-PON access network 100, subscribers 111 receive broadcast service, video on demand service, Internet service, ISDN service, leased line service, and general telephone service.

2 is a structural diagram according to an embodiment of a device management system (EMS: hereinafter referred to as EMS) in charge of operation management and maintenance of an ATM-PON access network according to the present invention. As shown in FIG. 2, the EMS includes an EMS client 201 and an EMS server 202, and the EMS server 202 is connected to an ATM-PON access network operation management and maintenance unit 203. have. Here, the ATM-PON access network operation management and maintenance unit 203 is preferably mounted in the mother station apparatus of the ATM-PON access network to be the operation management target. As shown in FIG. 2, the EMS client 201 and the EMS server 202 transfer packets of operation management and maintenance information through the TCP / IP communication 205 using the Internet 204. The EMS server 202 and the ATM-PON access network operation management and maintenance unit 203 also transmit a packet of operation management and maintenance information through the TCP / IP 205 communication. At this time, the operation management and supervisory control information exchanged are information required for configuration management, ATM connection management, failure management and performance management.

3 is a detailed structural diagram of an EMS server according to an embodiment of the present invention. As shown in FIG. 3, the EMS server 202 includes a web server manager 301, an IPC (inter-process contact; IPC) message distribution unit 302, a configuration manager 303, and a failure manager 304. ), A performance management unit 305, a system connection unit 306, and a database management unit 307.

The web server manager 301 is connected to the EMS client 201 and is responsible for authenticating an operator who can manage and manage an ATM-PON network connected through the EMS client 201.

The IPC message distribution unit 302 is responsible for the function of analyzing the IPC message delivered through the web server management unit 301 and delivering it to a function management unit that performs the corresponding function, and performs the corresponding function delivered from the function management unit. The result of the IPC message is delivered to the web server management unit 301. The configuration manager 303 performs shape management and ATM connection management of the management system. It manages the system shapes of the mother station devices and the local station devices constituting the ATM-PON network, and manages ATM connections established in the ATM-PON network. The failure management unit 304 performs a failure management function of the management system. The performance management unit 305 is responsible for the performance management function of the management system. The system connection unit 306 is responsible for the communication function with the ATM-PON operation management and maintenance unit 203 mounted on the processor of the management system. Therefore, each function management unit requests the operation management information from the ATM-PON operation management and maintenance unit 203 through the system connection unit or, conversely, receives the operation management information from the ATM-PON operation management and maintenance unit 203. . This operation management information includes all configuration management, ATM connection management, fault management, and performance management information required to manage the ATM-PON access network.

The operation management information processed by the configuration manager 303, the failure manager 304, and the performance manager 305 is stored and managed through the database manager 307. The result processed by the manager is It is displayed on the EMS client 201 through the IPC message distribution unit 302 so that an operator can grasp the state of the current system.

4 is a structure according to an embodiment of an operation management information packet used between an EMS client and an EMS server according to the present invention. The EMS client 201 and the EMS server 202 transfer operational management information to each other through TCP / IP communication. Preferably, the structure of the operational management information follows the format shown in FIG. As shown in FIG. 4, the structure of the management information has a structure of the operation management information packet 403 including an IP header 401 and a TCP header 402. The structure of the operation management information packet 403 includes a CID 404 representing an identifier of the EMS client 201. The result of performing the function requested through the EMS client 201 must be delivered to the EMS client 201 requesting the corresponding function. In this case, the CID 404 is an essential identifier. In addition, the operation management information packet 403 includes an OBJ 405 representing an identifier for identifying the operator's requirements in detail, a SAN 406 representing an ATM-PON system identifier requiring an arbitrary function, and SAB 407 representing an identifier of a block requesting a function of a DAN, a DAN 408 representing an ATM-PON system identifier receiving an arbitrary function request, and a DAB representing an identifier of a block that actually performs any requested function. 409, a PID 410 for identifying whether the information in this message is a request, a response, or a unilateral notification together with the identification of the request function, and a LEN 411 indicating the size information of the entire operation management information packet. It further includes, and finally includes the operation management information 412 having additional operation management information required for the performance of the function. In this case, the CID 404 and the OBJ 405 are used to determine which client to transfer the processing result for each request to because a plurality of clients may be connected to one server in a client-server connection.

5 is a detailed configuration diagram according to an embodiment of the ATM-PON access network operation management and maintenance unit according to the present invention. As illustrated in FIG. 5, the ATM-PON access network operation management and maintenance unit 203 may include an IPC message processing unit 501, a configuration management unit 502, a connection management unit 503, a performance management unit 504, and a failure. The management unit 505, the test management unit 506, the subscriber management unit 507, and the operation information management unit 508 are included. In addition, the ATM-PON access network operation management and maintenance unit 203 is mounted on the processor board of the mother station apparatus constituting the ATM-PON access network, and requests the network operator's request from the EMS client 201 and the EMS server 202. ), And interpret this to be internally processed or forwarded to the ATM-PON device monitoring and control unit 509, and, conversely, the EMS-PON device monitoring and control unit 509 receives the EMS through the corresponding processing procedure. It is displayed on the EMS client 201 terminal through the server 202. At this time, the IPC message communication unit 510 mediates an IPC message based on UDP / IP exchanged between management units.

The shape management unit 502 manages the system shapes of the mother station device and the local station devices constituting the ATM-PON access network. The STM1, STM4, E1, VDSL as well as the status information of the modules, slots and boards constituting each device It also manages the status information of SDSL, ISDN, PSTN ports and the duplication information of each board. In addition, it configures the initial configuration information of each device and requests the operator for each configuration management object, that is, the addition of local device, initialization of module unit, addition / deletion of module unit, board initialization, board attachment / detachment, duplication, port The block / unblock of the unit is transmitted to the corresponding ATM-PON device monitoring and control block, the processing result or the event notification related to the function is processed, and the management information is stored and deleted through the operation information management unit 508. , Change.

The connection manager 503 manages all ATM connections set in the ATM-PON access network. There are two types of ATM connections to be managed: path connections and channel connections, which are classified into permanent virtual connections (PVC) and signaling virtual connections (SVC), respectively. These connections are one-to-one (PTP) connections. Therefore, there are four types of ATM connections that are totally managed. The connection manager 503 transmits an operator's request for establishing and releasing such an ATM connection to the corresponding ATM-PON device monitoring and control unit 509, and processes and processes the result of the processing or the event notification related to the function. The information manager 508 stores, deletes, and changes management information.

The performance manager 504 collects and manages SDH, E1, and PON related performance information for various types of ports in each device, and collects and manages ATM performance information for each ATM connection. In addition, the periodic performance information on the port or connection is received from the corresponding ATM-PON device monitoring control unit 509 and divided into 15 minutes information and daily information to store the management information through the operation information management unit 508. It also performs performance threshold management.

The fault management unit 505 manages not only board, port unit faults that constitute each device, but also faults such as fan and power supply resources and faults such as temperature and humidity. These types of faults are classified into communication-related, device-related, and environmental-related obstacles. All the obstacles defined in the international standard are delivered in the form of event notifications, and the management information is stored through the operation information management unit 508. Delete or change. It also performs the function of classifying disability and changing the condition of disability reporting.

The test management unit 506 requests the loopback test, the connectivity test, and the performance monitoring test function to the corresponding ATM-PON device monitoring and control block according to the operator's request, and processes and processes the result of the processing or the event notification related to the function. The information manager 508 stores, deletes, and changes management information.

The subscriber management unit 507 receives a request for registration, deletion, and change of subscribers receiving various services provided through the ATM-PON access network, requests the corresponding ATM-PON device monitoring and control unit 509 and processes the result. Alternatively, after processing the case notification related to the function, the subscriber information is stored, deleted, and changed through the operation information management unit 508.

The IPC message processing unit 501 interprets the IPC message received from the EMS server 202 and the ATM-PON device monitoring control unit 509, transmits the IPC message to the operation management unit, and processes the IPC message according to the function of each operation management unit. The server 202 generates an IPC message to be sent to the ATM-PON device monitoring control unit 509. In addition, the event notification IPC message transmitted from the ATM-PON supervisory control unit 509 is also analyzed and delivered to the corresponding management unit.

6 is a structure according to an embodiment of an operation management information packet used between an EMS server, an ATM-PON operation management and maintenance unit, and an ATM-PON device monitoring and control unit according to the present invention. As described above, between the EMS server 202 and the ATM-PON operation management and maintenance unit 203 to transfer operation management information to each other through TCP / IP communication, the ATM-PON operation management and maintenance unit 203 and the ATM-PON device monitoring and control unit 509 exchange operation management information with each other through UDP / IP communication. Preferably, the structure of the operation management information follows the format shown in FIG. The structure of the operation management information packet used here is almost similar to that of FIG. The difference is that CID 404 and OBJ 405 are not used. In the case of FIG. 4, since multiple clients may be connected to one server, a CID 404 and an OBJ 405 for determining which client to deliver the processing result for each request are needed. This is because no operation information is exchanged with the client.

The structure of the operation management information packet 603 in FIG. 6 is the same as that of the remaining information except for the DIC 404 and the OBJ 405 of FIG. In other words, the SAN 604 is an ATM-PON system identifier requiring any function, and the SAB 605 is an identifier of the management part requiring any function. The DAN 606 is an ATM-PON system identifier that receives an arbitrary function request, and the DAB 607 is an identifier of a management unit that actually performs any requested function. The PID 608, along with the identification of the request function, distinguishes whether the information in this message is a request, a response, or a unilateral notification. The LEN 608 has size information of the entire operation management information packet. Finally, the operation management information 610 has additional information necessary for the performance of the function.

As described above, the EMS server according to the present invention is configured to transmit network operation management and maintenance information to the Internet through the TCP / IP communication with the EMS client, and the EMS server again transmits the ATM- through the TCP / IP communication. The information will be exchanged with the PON access network operation management and maintenance department. At this time, the operation management and maintenance information exchanged as described above has a packet structure as shown in Figures 4 and 6 ATM-PON network standardized, commercial management information without using a standardized protocol such as CMIP or SNMP And by operating the operation state of the devices constituting the network and the operation information managed by the operator it is possible to perform efficient operation management and maintenance.

In the detailed description and drawings of the present invention, one embodiment according to the present invention is disclosed, but this is merely a preferred example for describing the present invention and does not limit the scope of the present invention. In addition, the present invention described above is capable of various substitutions, modifications, and changes within the scope without departing from the spirit of the present invention for those of ordinary skill in the art to which the present invention pertains to the above-described embodiments and attached It is not limited to the drawings shown.

Accordingly, the scope of the invention should be determined by the appended claims rather than by the foregoing description.

As described above, in the present invention, since the ATM-PON access network operation management does not use a standardized protocol and manages the ATM-PON network operation management information through a widely used communication method, the network is configured. It is possible to conveniently monitor and manage the situation of the communication devices.

In addition, since the operation status of the actual ATM-PON network and the devices constituting the network are consistent with the operation information managed by the operator, it is possible to manage and maintain the reliable ATM-PON access network operation.

Furthermore, the economic burden of the existing standardized protocol is reduced and the burden of equipment for operating the operation management system is also reduced.

Claims (4)

ATM-PON network operation management and maintenance means for managing or exchanging Asynchronous Transfer Mode-ATM-PON operation management information for device management system (EMS) client requests and interpreting and processing operator requests; A device management system for managing asynchronous transmission mode-passive fluorescent subscriber network operation management information by exchanging the operation management information of A web server manager which receives operation management information from the client and executes authentication of the ATM-PON network operator connected through the client; An IPC message distribution unit for analyzing the interprocess communication (IPC) message for the operation management information transmitted through the web server management unit and distributing the corresponding function by corresponding function; A configuration management unit configured to perform configuration management of the ATM-PON network management system and ATM-PON access network connection management function; A failure management unit that performs a failure management function of the ATM-PON network management system; A performance management unit performing a performance management function of the ATM-PON network management system; And a database manager for storing and managing operation management information processed by the at least one management unit. The method of claim 1, wherein the operation management information, The identifier of the client, the requirements of the operator, the identifier of the ATM-PON network requesting any function, the identifier of the side requesting the function, the identifier of the ATM-PON network requesting the function, the requested function An asynchronous transmission mode-passive fluorescent light, comprising an identifier of a party that performs the operation, an identifier for identifying the request function and whether the information is a request, a response, or a notification, and information indicating the size of the entire operation management information packet. Device management system that manages subscriber network operation management information. The method of claim 1, A device for managing asynchronous transmission mode-passive fluorescence subscriber network operation management information, characterized in that it further comprises a system connection for performing communication with the ATM-PON network operation management and maintenance means and exchange operation management information. Management system. The method of claim 3, wherein the operation management information, The identifier of the ATM-PON network requesting any function, the identifier of the side requesting the function, the identifier of the ATM-PON network requesting the function, the identifier of the side performing the requested function, the request function Device management system for managing asynchronous transmission mode-passive fluorescent subscriber network operation management information, characterized in that it includes an identifier for discriminating whether identification and information is a request, response, or notification, and information indicating the size of the entire operation management information packet. .