KR100455871B1 - Method for managing network using high speed packet data network in network management system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a network management method using a high-speed packet data network in a network management system and a computer-readable recording medium storing a program for realizing the method.

2. The technical problem to be solved by the invention

The present invention provides a network management to perform a network management function by providing a standardized protocol (SNMP) through an Internet Protocol (IP) network and providing an IP address through a communication system, for interoperability between other systems. To provide a network management method using a high-speed packet data network in the system and a computer-readable recording medium recording a program for realizing the method.

3. Summary of Solution to Invention

In a network management method using a high-speed packet data network in a network management system, a process for executing matters related to a failure and an event in order to initialize a network node manager (NNM) in a data core network manager (DCNM) ( operating an pmd process); A recording step of recording, by a network node manager in operation, an event generated by exceeding a threshold value among information received through an agent to a database; And transmitting, by the network node manager, network management information to the agent, receiving information from the agent, and transmitting the received information back to the user.

4. Important uses of the invention

The present invention is used in the network management system.

Description

Method for managing network using high speed packet data network in network management system

The present invention relates to a network management method using a high-speed packet data network in a network management system and a computer-readable recording medium recording a program for realizing the method. In particular, for interoperability between other systems, IP (Internet Protocol) A network management method using a high-speed packet data network and the above method are realized in a network management system that provides a standard protocol (SNMP) through a network and an IP address through a communication system to perform network management functions. The present invention relates to a computer-readable recording medium having recorded thereon a program.

The "IS-95C" system generally refers to a connection protocol between a terminal (MS) and a base station (BTS) responsible for data transmission between radio sections. However, the IS-95C described here is a more comprehensive concept. The existing cellular network (800 MHz band) is an improved form of performance improvement in the existing network that is currently being serviced as a whole system over the wireless section, that is, IS-95A / B. It is a technology that can support up to 144kbps, which is the initial data transmission speed of next generation mobile communication system (IMT-2000) even in PCS (1.7 ~ 1.8GHz band).

Existing communication equipments do not use IP network, and most of them manage network using their own protocol. In addition, since most communication systems use their own addresses without using IP, they cannot interoperate with each other, network management is not standardized, and when using standardized protocols, they can be used as standardization protocols (CMIP) only through separate conversion devices. There was discomfort.

The present invention has been proposed to solve the above problems, and provides a standardized protocol (SNMP) through an IP (Internet Protocol) network for interoperability between other systems, and provides an IP address through a communication system. Accordingly, an object of the present invention is to provide a network management method using a high-speed packet data network and a computer-readable recording medium recording a program for realizing the method in a network management system capable of performing a network management function.

1 is a diagram illustrating an embodiment of a network management method using a high-speed packet data network in a network management system according to the present invention.

2 is a diagram illustrating an embodiment of an operation process of a DCNM according to the present invention;

3 is a diagram illustrating an embodiment of a relationship between a process running in a DCNM and a file and a database according to the present invention;

4 is a diagram illustrating an embodiment of a relationship between an SNMP manager of a DCNM and an agent of each network element according to the present invention;

The present invention for achieving the above object, in the network management method using a high-speed packet data network in the network management system, in order to initialize the network node management unit (NNM) in the data core network management unit (DCNM), associated with faults and events Operating a process of executing a matter (pmd process); A recording step of recording, by a network node manager in operation, an event generated by exceeding a threshold value among information received through an agent to a database; And a transmission step of receiving, by the network node manager, network management information from the agent, receiving information from the agent, and transmitting the received information back to the user.

Meanwhile, the present invention operates a process (pmd process) for executing matters related to a failure and an event in order to initialize the network node manager NNM in the data core network manager DCNM in a network management system having a processor. Letting operation function; A recording function of recording, in a database, an event generated in excess of a threshold value among information received by the network node manager in operation; And the network node manager requests network management information from the agent, receives the information from the agent, and provides a computer-readable recording medium recording a program for realizing a transmission function of transmitting the received information back to the user. do.

The Data Core Network Manager (DCNM) according to the present invention is a PDSN (Packet Data Serving Node) constituting a packet data network in a third generation code division multiple access (CDMA) mobile communication network, and is authorized / authenticated. Network management system of High Speed Packet Data Network (HPDN) to manage AAA (Authentication, Authentication, and Accounting) server, PDGN (Packet Data Gateway Node), DNS (Domain Name Server) to be.

The current communication network uses its own protocol with the network elements and the protocol called the Common Management Information Protocol (CMIP) with the network management center. However, these network elements are mostly composed and used as circuit network elements. However, the IS-95C system is a packet network, which is considered to be the same as the data network rather than the current communication network.

HPDN was first adopted in IS-95C system to provide high speed packet data network in communication network, and will be used as the basis of next generation network such as IMT-2000 network and all-Internet protocol (ALL-IP) network.

In addition, the present invention device DCNM is a device developed to perform network management functions in the IP network, such as IS-95C HPDN.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating an embodiment of a network management method for providing fast packet data in a network management system according to the present invention.

As shown in FIG. 1, the data core network management unit (DCNM) of the HPDN network management apparatus in the IS-95C system includes a packet data serving node (PDSN), a packet data gateway node (PDGN), and AAA, which are network elements in the HPDN. Network operation such as IP network connection status of server and DNS, hardware (H / W) status monitoring of corresponding devices, network traffic monitoring, hardware (H / W) and software (S / W) alarm monitoring and traffic statistics function And perform administrative functions.

The structure of DCNM consists of PDSN / PDGN Element Manage System (EMS), AAA Server EMS, DNS EMS, and communicates with each network element using standard protocol called Simple Network Manage Protocol (SNMP), and each management function is MIB. Defined and managed.

That is, Figure 1 shows the DCNM function structure, the overall network management function uses "HP OpenView Tool", AAA server EMS uses the SMC (Sun Management Center) Tool (PDSN, PDGN, DNS) Use "HP OpenView".

In addition, the MIB (Management Information Base) uses an Oracle database (DB) to send data stored on demand from the Network Management Center (NMC).

Here, the hardware (H / W) uses a "Ultra60" system of Sun (SUN).

DCNM's SNMP Manager is based on the "HP OpenView Network Node Manager". The Network Node Manager (NNM) is responsible for general fault management, configuration management, and network performance management. Each EMS is in charge. Each network element can communicate not only with the NMS but also with each EMS. In the network element, such communication is handled by each SNMP agent in the network elements. The operation process for performing a network management method using a high-speed packet data network in the network management system according to the above is briefly described as follows: First, the network node management unit (NNM) is initially executed by the data core network management unit (DCNM). In order to operate a process related to a failure and an event (pmd process), an operating network node manager records an event generated in a database exceeding a threshold value among information received through an agent. Node manager sends network management information to agent and delivers information from agent And, it is sent back to the user the received information. On the other hand, if described in the operation procedure for performing a network management method using the high-speed packet data network in the network management system of the present invention in detail as follows.

2 is a diagram illustrating an embodiment of an operation process of the DCNM according to the present invention.

As shown in FIG. 2, the "HP OpenView Network Node Manager", an NMS (NNM) -based tool, operates by combining several processes, a configuration file, and a database.

Background processes of NNM perform general network management functions, and foreground processes mainly perform functions related to user interface and configuration with a user.

That is, Figure 2 is a visual representation of the state of the relationship between the NNM process file and the database during the initial startup.

Here, NNM runs and manages the "ovspmd" process when it is first run, interacting with several processes. Processes sometimes require configuration file references, dependencies on other processes, and connections to the database, so if there is a configuration change, process change, or database change, restart NNM (Network Node Manager). Run it to update your changes.

FIG. 3 is a diagram illustrating an example of a relationship between a process running in a DCNM, a file, and a database. FIG. 3 illustrates a relationship between a process running in a DCNM, a file, and a database. ) Is executed and managed by the "ovspmd" process during initial execution, while the "pmd" process is responsible for communication between processes and management of each process when all processes are executed to perform network management functions.

The "pmd" process is mainly responsible for faults and events. When NNM is running, events generated by exceeding the threshold of information received by "trap" and "snmpCollect" from "trapd" from the agent ( Receive and forward events, and record them in the Event Database. "pmd" also sends an event from the network to another application connected to "pmd" using the SNMP Application Programming Interface (API).

FIG. 4 is a diagram illustrating a relationship between an SNMP management unit of the DCNM and an agent of each network element according to the present invention. FIG. 4 illustrates a structure between an SNMP management unit of the DCNM and an agent of each network element, and SNMP is a management unit-agent ( Manager-Agent), the management unit requests network management information to the agent, receives a request from the agent, and provides the received information to the user as an interface. In addition, the agent receives a request from the management unit, receives the information from the network entity (NE) and provides the information to the management unit, and the specific information is sent to the management unit in the form of "Trap" even if the management unit does not request.

On the other hand, there are four management functions performed in DCNM.

First, in case of failure in HPDN (High speed Packet Data Network) network, the failure management recognizes the generated failure in DCNM and manages the failure.

-Real-time reporting function in case of failure of DCN network element

-Failure diagnosis information function for stratification and failure factors according to importance after failure detection

-History management of each element of HPDN and visual / audible alarm function in case of failure

Second, the configuration management manages the form of network and the composition of each network element.

A visual representation of the connection between network configuration and network elements

-Shows the appearance of HPDN components such as AAA servers, PDSNs, and Packet Data Gateway Nodes (PDGNs) and allows management to remotely view the status of HPDN components.

-Visually express each network element

Ability to visually represent and manage the hardware state of each network element

Third, performance management continuously monitors network element information, thereby monitoring and managing network element performance.

Collect performance data of each network element by interworking with HPDN network element

Provides current status / performance statistics of each system's ports to perform system performance evaluation and visual and audible functions

-Monitoring performance data by accumulating and managing performance monitoring data in database

-Threshold setting function for any performance monitoring element of each network element

-Load / Unload function and polling cycle setting function of specific MIB

"trap" destination setting function

Fourth, there are various EMS management functions.

1) AAA Server SUN Management Center (EMS): AAA server runs on the "Sun Workstation", the management of which uses SMC

-AAA server hardware status monitoring and graphical user interface

-AAA server alarm setting / alarm function

Process status monitoring and resource availability monitoring of AAA servers

Network interface of AAA servers

2) PDSN / PDGN EMS: PDSN / PDGN runs on the "CX-6160" device, and management uses "HP OpenView NNM".

-PDSN / PDGN hardware status monitoring and GUI

-PDSN / PDGN alarm setting / alarm function

Process status monitoring and resource availability monitoring

Network interface monitoring of PDSN / PDGN and R-P interface monitoring with Packet Control Function (PCF)

In other words, DCNM is a UNIX-based resource management system that operates on SNMP and provides configuration, performance, failure, and security management functions. Each management function is performed by an easy-to-use graphical user interface in the form of a window, which is managed from the entire network map to system components (system, self, port) according to the top-down method. . DCNM provides various types of statistical information to the operator by using the database to store past and present values of system performance and alarms, interface-related connection information, operator's operation history information, and system log history information. The present invention can be used for network management of all network elements using IMT-2000 and IP network.

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

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

The present invention as described above, by providing a standardized protocol (SNMP) through the Internet Protocol (IP) network for interoperability between other systems, by providing an IP address through the communication system, it is possible to perform a network management function That has an excellent effect.

Claims (9)

A network management method using a high speed packet data network in a network management system, Operating a process (pmd process) for executing matters related to a failure and an event to initialize the network node manager NNM in the data core network manager DCNM; A recording step of recording, by a network node manager in operation, an event generated by exceeding a threshold value among information received through an agent to a database; And A transmission step of the network node manager requesting the agent for network management information from the agent, receiving the information from the agent, and transmitting the received information back to the user; Network management method using a high-speed packet data network in a network management system comprising a. The method of claim 1, The process of executing the matter related to the failure and the event, Network management using a high speed packet data network in a network management system, characterized in that for transmitting the event transmitted through the network to another application connected to the pmd process using a Simple Network Manage Protocol (SNMP) Application Programming Interface (API). Way. The method according to claim 1 or 2, The agent, In response to a request from a management unit, a network entity transmits information in a network entity (NE), and specific information is transmitted to the management unit in the form of "trapd" even if there is no request from the management unit. How to manage your network. The method according to claim 1 or 2, The data core network management unit (DCNM), A network management method using a high-speed packet data network in a network management system characterized by performing fault management, configuration management, and performance management, and performing EMS (Element Manage System). The method of claim 4, wherein The failure management function, When a failure occurs in the HPDN (High speed Packet Data Network) network, the generated failure is recognized by the DCNM, and the failure is managed, and when a failure occurs in the HPDN network element, a real-time reporting function, stratification and failure according to importance after failure detection A method of managing a network using a high-speed packet data network in a network management system having a function of diagnosing fault information of an element, managing a history of failure of each element of the HPDN, and a visual / audible alarm function when a failure occurs. The method of claim 4, wherein The configuration management function, It manages the network configuration and configuration of each network element, and visually expresses the connection status between the network configuration and network elements, Authorization, Authentication, and Accounting (AAA) server, The ability to show the HPDN components such as Packet Data Serving Node (PDSN) and Packet Data Gateway Node (PDGN) and to allow management to view the status of HPDN components remotely, and visualize each network element. A network management method using a high-speed packet data network in a network management system, characterized in that it has a function to express, and to visually represent and manage the hardware state of each network element. The method of claim 4, wherein The performance management function, It continuously monitors the information of the network elements to monitor and manage the performance of the network elements, collects the performance data of each network element in conjunction with the HPDN network element, and provides the current status / performance statistics of the ports of each system. Performance evaluation and visibility function, accumulate and manage performance monitoring data in database, monitor performance data, set threshold for arbitrary performance monitoring elements of each network element, and load / unload specific MIB (Management Information Base) / Unload), a polling cycle setting function, and a "trap" destination setting function, the network management method using a high-speed packet data network in the network management system. The method of claim 4, wherein The EMS function is The AAA server EMS and the PDSN / PDGN EMS function are performed, wherein the AAA server EMS provides hardware status monitoring and graphical user interface (GUI) monitoring of the AAA server, AAA server alarm setting / alarm function, process status monitoring of the AAA server, and Resource availability monitoring and network interface monitoring function of the AAA server, the PDSN / PDGN EMS provides PDSN / PDGN hardware status monitoring and GUI, PDSN / PDGN alarm setting / alarm function, PDSN / PDGN process status monitoring and A network management method using a high-speed packet data network in a network management system, which performs resource availability monitoring, PDSN / PDGN network interface monitoring, and RP interface monitoring with a PCF (Packet Control Function). In a network management system equipped with a processor, An operation function for operating a process (pmd process) for executing matters related to a failure and an event to initialize the network node manager NNM in the data core network manager DCNM; A recording function of recording, in a database, an event generated in excess of a threshold value among information received by the network node manager in operation; And The network node manager requests network management information to the agent, receives the information from the agent, and transmits the received information back to the user. A computer-readable recording medium having recorded thereon a program for realizing this.