KR20050001122A - System and method for recovery of network failure - Google Patents

Abstract

PURPOSE: A system and a method for processing failures of a network forming equipment operated on an IP(Internet Protocol) network are provided to reduce time/expense for failure recover by instantly trying to recover the failure generated in a subscriber section and requesting a repairman to repair the non-recovered failure. CONSTITUTION: A failed equipment searcher(10) detects the failed equipments in a subscriber section by searching the failure of the network forming equipment connected to subscriber lines. A command searcher(20) searches a protocol command of the corresponding equipment. A command applier(30) judges abnormality by applying the searched command after connecting to the failed equipment. A failure information processor(40) confirms the final failure state by collecting/analyzing state information of the failed equipment applying the command. A service supporter(50) releases the failure of the equipment if the failure is recovered through the final failure state, and requests mobilization of the failure repairman if the failure is not recovered.

Description

Fault handling system over network and its method {SYSTEM AND METHOD FOR RECOVERY OF NETWORK FAILURE}

The present invention relates to a system and method for processing a failure on a network for handling a failure of network component equipment operating in an IP network.

Many people now use a communication terminal, such as a PC, to connect to the Internet and share vast amounts of information scattered on the Internet.

Due to the rapid increase in the use of the Internet, the failure of the Internet service frequently occurs, and the frequency of failures on the subscriber side corresponds to about 80% of all failure reports.

Therefore, IP network-related Operation Support System (OSS) immediately dispatches troubleshooting personnel to the site when a failure report is received in order to solve an Internet service-related failure occurring on the subscriber side.

That is, in the IP network related operation management system, the subscriber calls the agent to check whether the network system is related to the failure, and the agent who receives the failure report from the subscriber remotely accesses the communication terminal used by the subscriber. Check with the manager to confirm the final failure and notify the subscriber again.

At this time, in the event of a failure of the subscriber's equipment, a trouble-shooter dispatches the site and repairs the subscriber equipment directly. Some of the failures in the subscriber equipment can be resolved by simply resetting the equipment or taking simple actions, without the need for troubleshooting personnel onsite.

However, the conventional IP network-related operation management system requires a troubleshooter to be dispatched every time a fault occurs regardless of the failure state of the subscriber equipment. There is a problem that the failure recovery process is not convenient

The technical problem to be achieved by the present invention is to extract the failure occurred in the subscriber section to immediately attempt to take a failover action, and to reduce the time and cost for handling the failure by requesting the dispatch of troubleshooting personnel for the failure that does not recover It is to provide a fault handling system on a network.

1 illustrates a configuration of a failure handling system on a network according to an embodiment of the present invention.

2 is a flowchart illustrating a failure handling method on a network according to an embodiment of the present invention.

In order to solve this problem, the present invention extracts a failure occurring in a subscriber section when a network failure occurs, and immediately attempts a failure recovery process, and instructs the dispatch of a troubleshooting agent when the failure recovery process fails.

A failure handling system and a method on a network according to the first aspect of the present invention is a failure handling system on a network in which a service provider for providing an Internet service to a subscriber handles occurrence of a failure on the network. A faulty equipment searching unit configured to detect whether a fault occurs in the network component equipment connected to the plurality of subscriber lines, and to detect faulty equipments in the subscriber section among faulty equipments; A command search unit for searching for a protocol command of a corresponding device when a disabled device in a subscriber section detected by the fault search unit supports a protocol for managing a network between the service provider and the subscriber; A command application unit for remotely accessing a failure device detected by the failure search unit to determine whether there is an error by applying a command retrieved from the command search unit to the device; A failure information processing unit for collecting and analyzing state information of a failure device to which the command is applied by the command application unit to collect a failure state of the corresponding device to check a final failure state; And when the failure of the failure equipment is recovered through the last failure state of the equipment by the failure information processing unit, releasing the failure of the equipment, and requesting on-site dispatch of a troubleshooting agent when the failure of the failure equipment is not recovered. Includes support.

The service provider preferably includes a database storing the network configuration equipment related facilities, remote access and failure information, the protocol related support presence / absence, and instruction set information.

The faulty equipment search unit may include: a fault state search module configured to detect faulty equipment having a fault among the network components and store the faulty equipment in a fault table; And a subscriber section failure detection module for detecting a failure occurring in a subscriber section by extracting an ID of a failure device from a failure table of the failure state search module.

The command search unit may include: an SNMP support search module configured to determine whether the disabled device supports a simple network management protocol (SNMP) for managing a network; And a command search module for searching for an SNMP-SET command for applying to a device that supports SNMP through the SNMP support search module.

The command application unit may include: a remote access module configured to log in to a remote device for remote access; And a command application module configured to determine whether there is an error by applying a command searched by the command search unit when the remote device is remotely connected with the failing device.

The service support unit releases the failure of the failure equipment when the failure state of the last failure equipment of the failure equipment is recovered through the failure information processing unit, and instructs troubleshooting when the failure of the failure equipment is not recovered. A fault handling module; And a troubleshooting request module for requesting dispatch by dispatching a troubleshooting agent to troubleshoot the faulty equipment when the fault handling module instructs fault repair.

A system and method for handling a failure on a network according to a second aspect of the present invention is a failure handling method on a network in which a service provider that provides an Internet service to subscribers handles occurrence of a failure on a network. The provider collects the state information of the network configuration equipment running on the network to detect the failure equipment; B) extracting the faulty equipments in which the fault occurs in the subscriber section among the equipment detected in step A), and searching whether the faulty equipment supports the protocol for managing the network between the service provider and the subscriber; C) if the faulty equipment supports the protocol in step B), searching for a command corresponding to the faulty equipment, and applying the command to the faulty equipment through a remote connection with the faulty equipment; And D) collecting and analyzing the result of applying the command to the faulty equipment in step C) to determine a final fault state of the faulty equipment, and to determine whether a fault repair agent is dispatched.

The extracting of the disabled equipment in the subscriber section in the step B) may include extracting IDs of the disabled devices detected in the step A), matching the ID of each device with facility information about the network configuration equipment, in the subscriber section. It is desirable to detect the disorder that has occurred.

In the case where the failure equipment does not support the protocol in step B), it is preferable that the service provider requests the dispatch of a troubleshooting agent.

In the step C), when the command is applied to the faulty device, if the faulty device supports Simple Network Management Protocol (SNMP), a search for an SNMP-SET command applicable to the faulty device is performed. It is desirable to apply the above command by telnet login to the device.

In case the telnet login fails to remotely connect to the faulty equipment, the service provider may request the dispatch of a troubleshooting agent.

In step D), determining whether or not a malfunctioning agent is dispatched may include: releasing the fault for the faulty equipment when the fault state of the faulty equipment is recovered from the fault, and failing to recover the faulty equipment. It is advisable to arrange for a repair agent to request a visit to the subscriber of the equipment.

In the detecting of the failing equipment in step A), it is preferable to store the failing equipments in a fault table and to perform a troubleshooting procedure on the service provider side for equipment other than the failing equipment in the subscriber section. .

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

First, a failure processing system on a network according to an embodiment of the present invention will be described in detail with reference to FIG. 1.

1 illustrates a configuration of a failure handling system on a network according to an embodiment of the present invention.

As shown in FIG. 1, a failure processing system in a network according to an embodiment of the present invention includes a failure equipment search unit 10, a command search unit 20, a command application unit 30, and a failure information processing unit 40. , Service support unit 50, and databases.

The failure equipment search unit 10 may include, but is not limited to, a failure state search module 11 and a subscriber section failure detection module 15.

The failure status detection module 11 collects and analyzes TRAP data or remote log (SYSLOG) data and PORT Admin / Oper status information from a switch and a DSLAM (Digital Subscriber Line Access Multiplexer), a router currently operating in an IP network, and configures a network. The failure state of the device is determined, and failure devices determined as failures are stored in the failure table.

DSLAM is a digital subscriber line access multiplexer, usually network equipment installed on the service provider side, that receives signals from multiple subscriber line connections and sends signals to high-speed backbone lines using multiplexing techniques.

The TRAP data is used for notifying the operation of the example, and the PORT Admin / Oper status information is information on port management and operation status.

The subscriber section failure detection module 15 detects the failure of the equipment installed in the subscriber section by extracting the ID of the failure equipment and searching the failure table in real time.

The command retrieval unit 20 is an SNMP support retrieval module 21 and a command retrieval module 25, and the SNMP support retrieval module 21 uses the disabled device ID in the subscriber section to determine whether the corresponding device substantially supports SNMP. Search. In addition, the command search module 25 searches for a command to be applied to the corresponding device for the SNMP set command for each device and manufacturer, if the disabled device supports SNMP.

The command applier 30 is a remote access module 31 and a command applicator module 35, and the remote access module 31 applies a command retrieved from the command search unit 20 by telnet-logining to the disabled device.

The failure information processor 40 determines the final failure state by collecting and analyzing state information of the failure device on-demand when the command is normally applied to the failure device in the command application unit 30.

The service support unit 50 is a failure handling module 51 and a failure repair request module 55. The failure handling module 51 is a case where a failure recovery action is properly performed through the final failure state of the failure information processing unit 40. Release the fault of the equipment and instruct the fault to be repaired if the failback action fails.

When the troubleshooting request module 55 instructs the fault handling module 51 to repair the fault, the troubleshooter is arranged in consideration of the time and distance with the subscriber side of the faulty equipment, and the troubleshooter has been repaired. Request immediate dispatch for repair of any subscriber equipment incurred.

The databases include, but are not limited to, a failure information DB 61, a facility information DB 62, an SNMP information DB 63, an SNMP-set command DB 64, and a remote access information DB 65. Do not.

The failure information DB 61 stores the failure state related information of the network configuration equipment, and the facility information DB 62 stores the location of the equipment and the facility related information in an ID assigned to each device. In addition, the SNMP information DB 63 stores information on the actual supportability of SNMP for each device, and the SNMP-set command DB 64 stores information on commands applicable to each device and manufacturer. The remote access information DB 65 stores information for telnet login for each device.

Referring to Figure 2 will be described in detail the operation of the failure handling system on the network according to an embodiment of the present invention.

2 is a flowchart illustrating a failure handling method on a network according to an embodiment of the present invention.

As shown in FIG. 2, in the failure processing method on the network according to the embodiment of the present invention, a switch, a router, and a DSLAM in which an error state search module 11 is operating in an IP network through a failure information DB 61 is first performed. Collect and analyze various information from the network to determine the failure state of the network configuration equipment to detect the failure equipment (S11, S12).

The subscriber section failure detection module 15 determines whether the equipment is installed in the subscriber section by extracting the ID of the disabled device and searching the facility information DB 62. (S13, S14)

If the failure status detected by the failure state detection module 11 is not installed in the subscriber section among the failure equipment, the corresponding failure equipment is determined as a failure occurred in the service provider side and the information on the failure status of each equipment failure table After saving it in the memory, repair the problem. (S15, S16)

However, when a failure occurs among the devices installed in the subscriber section, the SNMP support search module 21 determines whether the corresponding device substantially supports SNMP through the SNMP information DB 63 (S17).

At this time, if the failure equipment installed in the subscriber section does not support SNMP, the service provider requests the dispatch of the troubleshooter because the failure recovery action is not possible remotely.

If the faulty device installed in the subscriber section supports SNMP, the command search module 25 searches for an SNMP-set command applicable to the device through the SNMP-set command DB 64 (S19). The access module 31 attempts a remote access by telnet logging in to the failing device using the remote access information DB 65. (S20)

In this case, if the remote access fails, the service provider requests the dispatch of a troubleshooting agent remotely because the failure recovery action is impossible, but if the remote access is successful, the command application module 35 searches for the command search module 25. Apply the command to the faulty device (S21, S22).

When the SNMP-set command is normally applied to the faulty device installed in the subscriber section, the fault information processing unit 40 collects and analyzes the information on the fault state of the device to which the SNMP-set command is applied on-demand to determine the final fault state. (S23, S24)

The failure processing module 51 releases a failure in the case of a device in which failure recovery is successfully performed remotely according to the final failure state of the failure information processing unit 40. (S25, S26) By the way, the failure processing module 51 In the case of the equipment that does not perform a failure recovery measures remotely, the request for the dispatch of a troubleshooting agent to the subscriber through the troubleshooting request module 55. (S25, S18)

At this time, the troubleshooting request module 55 arranges the optimal troubleshooting personnel in consideration of the distance and time taken by the troubleshooting personnel to visit the subscriber for immediate troubleshooting of the failure equipment installed in the subscriber section.

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited thereto, and various other changes and modifications are possible.

As described above, the fault handling system and the method on the network fail by extracting the fault in the subscriber section among the faults occurring in the network and attempting an immediate fault recovery action, and requesting the dispatch of a troubleshooting agent only when the fault is not recovered. By shortening the processing time, it is possible to minimize the dissatisfaction of subscribers and minimize the dispatch of troubleshooting personnel, thereby reducing the effort and cost required for troubleshooting.

Claims (13)

In a failure handling system on a network in which a service provider providing an Internet service to a subscriber handles occurrence of a failure on a network, The service provider, A faulty equipment searching unit configured to detect whether a fault occurs in the network component equipment connected to the plurality of subscriber lines, and detect faulty equipment in the subscriber section among faulty equipment; A command search unit for searching for a protocol command of a corresponding device when a disabled device in a subscriber section detected by the fault search unit supports a protocol for managing a network between the service provider and the subscriber; A command application unit for remotely accessing a failure device detected by the failure search unit to determine whether there is an error by applying a command retrieved from the command search unit to the device; A failure information processing unit for collecting and analyzing state information of a failure device to which the command is applied by the command application unit to collect a failure state of the corresponding device to check a final failure state; And When the failure of the failure equipment is recovered through the last failure state of the equipment in the failure information processing unit, the service support unit for releasing the failure of the equipment, and requesting on-site dispatch of the troubleshooting personnel when the failure of the failure equipment is not recovered Failure handling system on the network comprising a. The method of claim 1, The service provider, And a database storing the network configuration equipment related facility, remote access and failure information, the protocol related support presence / absence, and instruction set information. The method of claim 1, The obstacle equipment search unit, A failure state search module for detecting a failure device having a failure among the network configuration devices and storing the failure device in a failure table; And Subscriber section failure detection module for detecting the failure occurred in the subscriber section by extracting the ID of the failure equipment from the failure table of the failure state search module Failure handling system on the network comprising a. The method of claim 1, The command search unit, An SNMP support search module for determining whether the faulty device supports Simple Network Management Protocol (SNMP) for managing a network; And A command search module for searching for an SNMP-SET command for applying to a device that supports SNMP through the SNMP support search module Failure handling system on the network comprising a. The method of claim 1, The command application unit, A remote access module for logging in to the faulty device for remote access; And A command application module configured to determine whether there is an error by applying a command searched by the command search unit when the remote device is remotely connected with the disabled device through the remote access module; Failure handling system on the network comprising a. The method of claim 1, The service support unit, A failure processing module for releasing the failure of the failure equipment when the last failure state of the failure equipment is recovered through the failure information processing unit, and instructing troubleshooting when the failure of the failure equipment is not recovered; And When the fault handling module instructs a fault repair, a fault repair request module for requesting dispatch by a fault repair agent for fault repair of the faulty equipment Failure handling system on the network comprising a. What is claimed is: 1. A method of handling a failure in a network in which a service provider providing an Internet service to a subscriber handles occurrence of a failure in a network. A) the service provider collecting the status information of the network configuration equipment running on the network to detect the failure equipment; B) extracting the faulty equipments in which the fault occurs in the subscriber section among the equipment detected in step A), and searching whether the faulty equipment supports the protocol for managing the network between the service provider and the subscriber; C) if the faulty equipment supports the protocol in step B), searching for a command corresponding to the faulty equipment, and applying the command to the faulty equipment through a remote connection with the faulty equipment; And D) collecting and analyzing the result of applying the command to the faulty equipment in step C) to determine the final fault state of the faulty equipment, and determining whether to dispatch a repairman. Failure handling method on a network comprising a. The method of claim 7, wherein In the step B), extracting the disabled equipment in the subscriber section, And extracting the IDs of the faulty devices detected in step A), matching the ID of each device with the facility information on the network component, and detecting a fault occurring in the subscriber section. The method of claim 7, wherein If the failure equipment does not support the protocol in step B), the service provider requests the dispatch of a troubleshooting agent. The method of claim 7, wherein In the step C) of applying a command to the disabled equipment, If the faulty device supports Simple Network Management Protocol (SNMP), it searches for an SNMP-SET command applicable to the faulty device, and Telnet LOGIN to the faulty device to apply the command. Method of handling failure on network. The method of claim 10, If the telnet login fails to remotely connect to the faulty equipment, the service provider requests the dispatch of a troubleshooting agent. The method of claim 7, wherein In the step D), the step of determining whether or not to dispatch a troubleshooting agent, When the failure state of the failure equipment is recovered, the failure of the failure equipment is released, and when the failure of the failure equipment is not recovered, a troubleshooter is arranged to request a visit to the subscriber of the equipment. Method for handling a failure on a network, characterized in that. The method of claim 7, wherein Detecting the faulty equipment in step A), Storing the faulty equipments in a fault table and performing a troubleshooting procedure at the service provider for devices other than the faulty equipment in the subscriber section.