KR100439370B1 - Method and System for managing interference of u-link condition in total access mode - Google Patents

Abstract

The present invention relates to a method and system for dealing with u-link failure of integrated access equipment.

The U-link failure processing method of the present invention, the integrated access equipment, U-link cable failure processing method of the integrated access equipment 100 performing communication in the IPC (IPC) method through the U-link cable (L1 ~ L4) (A101) monitoring the status of the U-link cables (L1 to L4) in a periodic polling operation by a failure management block (111,121) in the main processor (110,120) constituting the integrated access equipment (100); Checking whether there is a change in state as a result of state detection of the U-link cables L1 to L4 (A102); (A103) checking the state of hernia and mounting of the U-link cables L1 to L4 when there is a state change as a result of the checking; Reporting (A104) process state management blocks (112, 122) and an operator of a state change of the U-link cables (L1 to L4) such as the hernia and mounting state; Recording (A105) a state change of the U-link cables L1 to L4 in a database; Receiving an alarm-related command and a link state setting command from an operator according to the states of the U-link cables L1 to L4 and processing the instructions by the process state management blocks 112 and 122 to perform failure processing (A106); Constructing a processing result message according to the failure processing of the process state management block (112, 122) and outputting it through an operator terminal (A107); The fault management blocks 111 and 121 include a step (A108) of detecting the fault processing result and reporting it to the process state management blocks 112 and 122 (A108).

Accordingly, the U-link failure processing method and system of the present invention provides an access gateway in a situation in which a U-link cable, which is an interface between a main processor and an asynchronous transmission mode device, normally performs communication in an integrated access device system that is an access gateway. -If the link cable is disconnected, it is detected by the fault management block in the main processor of the integrated access device, and the process is managed by performing the fault handling according to the problem of the asynchronous transmission mode interface in the integrated access device. Data loss can be prevented and the fault detection of the U-link cable consists of a solid line alarm in the main processor, and the fault management block detects the fault in a cyclic polling method, which enables accurate fault detection and rapid fault handling. Can There are advantages.

Description

Method and System for managing interference of u-link condition in total access mode}

The present invention relates to a method and system for performing fault management and recovery of a U-LINK, which is a communication path between an asynchronous transmission mode device and a main processor, and more specifically, periodically polls a state of a U-link cable. U-link failure handling method and system that detects through operation and detects the failure of the U-link cable of the integrated access equipment by solid alarm method and informs the process status management block and the operator so that the network management and the disaster recovery processing can be performed quickly. It is about.

In general, a large-scale system such as an exchanger has a plurality of processors therein, and is configured to exert data unique to the system by exchanging data between the processors, to ensure continuity of operations when transmitting and receiving data between processors. The communication path between processors is duplicated.

Typically, the integrated access equipment consists of all four U-LINKs, and each U-link is redundantly connected between the main processor and the asynchronous transmission mode (ATM) equipment. have.

Accordingly, the transmission of clock and data between the main processor and the asynchronous transfer mode equipment in the integrated access equipment is performed by the U-link cable, and a means for detecting a hernia of the cable is required.

Conventionally, an IPC (Inter Process Communication) method has been used, which is a method of reporting from a firmware in an asynchronous transmission mode device to a failure management block in an upper main processor.

However, the above IPC scheme does not have a communication path when all four U-link cables are configured as redundant, so that failures cannot be reported to the upper main processor so that accurate failure handling cannot be achieved. There was this.

Accordingly, the present invention is to solve all the disadvantages and problems that are pointed out in the conventional fault handling method using the IPC (IPC) method, the U-link by having a fault management block and a process state management block in the main processor Periodic polling to detect the status of the cable, asynchronous transmission mode of the integrated access device and the failure of the U-link, a communication path between the main processor and a solid-state alarm method, so that quick recovery process for the failure is performed. It is an object of the present invention to prompt the network management and failure recovery process by informing the operator of the system failure through the user port.

1 is a schematic block diagram of a failure handling system according to the present invention;

2 is a flowchart illustrating a failure processing method according to the present invention.

((Explanation of symbols for main parts of drawing))

100. Integrated access equipment 110, 120. Main processor

111, 121. Fault Management Block 112, 122. Process State Management Block

130, 140. Asynchronous Transmission Mode Equipment L1 ~ L4. U-link cable

The object of the present invention is to periodically poll the state of the U-link cable in a polling manner in a failure management block in the main processor in order to perform the troubleshooting and recovery of the U-link, which is a communication path between the asynchronous transmission mode equipment and the main processor. Detect the failure and send it to the process status management block so that the process status management block can quickly recover the failure and report it to the operator and network management system through the user port so that subsequent call processing can be performed normally. It is achieved by a method and system for dealing with failures of u-links.

The main processor that communicates with the integrated access equipment through the U-link cable includes a fault management block and a process state management block, and the fault management block periodically polls the state of the U-link cable. It detects the status of the U-Link cable and checks the status of the U-Link cable. The status and time of the U-Link are recorded in the database and the error information and the alarm information of the equipment are output. -Receive link cable status and fault information in database and receive alarm related command and link status setting command from operator to perform fault handling.

Details of the above object and technical configuration and the effects thereof according to the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 is a schematic block diagram of a failure handling system according to the present invention, and FIG. 2 is a flowchart illustrating a failure handling method according to the present invention.

As shown in FIG. 1, the IP-based communication is performed through the U-link cables L1 to L4. The integrated access device 100 includes four U-link cables L1 to L4. Each of the U-link cables L1 to L4 is redundantly connected between the main processors 110 and 120 and the asynchronous transmission mode equipment 130 and 140, which are configured in redundancy.

The U-link failure processing system of the integrated access device of the present invention uses the U-link cables L1 to L4 between the main processor 110 and 120 and the asynchronous transmission mode equipment 130 and 140 through the U-link cables L1 to L4. In the integrated access device 100 that communicates through the PC method, the main processor 110 and 120 includes a fault management block 111 and 121 and a process state management block 112 and 122.

The fault management blocks 111 and 121 are software blocks, which output fault information and alarm information generated by interlocking with an alarm detection of a corresponding device and an application of the main processor 110 and 120, and an MMC command regarding an alarm. The process state management blocks 112 and 122 are software blocks for system state management. The process state management blocks 112 and 122 receive the state of the U-link cables L1 to L4 from the fault management blocks 111 and 121 and perform asynchronous transmission mode equipment ( A process for managing the process state of the process 130 and 140 so that normal operation of the process state and call processing state is achieved.

The fault management blocks 111 and 121 receive various fault messages, such as generated hardware alerts, software alerts, and other faults, and construct an output message for displaying the analyzed faults and alerts to the outside.

The failure management blocks 111 and 121 also send failure and recovery messages of the equipment to the process status management blocks 112 and 122 and configure the output messages for the operator to know.

The fault management blocks 111 and 121 detect the state of the U-link cables L1 to L4 through periodic polling operations, detect alarms of the corresponding equipment, output fault information and alarm information, and Process MMC command.

At this time, the failure management blocks 111 and 121 detect the state of the U-link cables L1 to L4 as described above, record the current correct state and time in the database, and report them to the process state management blocks 112 and 122 for asynchronous transmission. The process state of the mode equipment 130,140 is managed.

Meanwhile, the failure detection of the U-link cables L1 to L4 is stored as a solid line alarm in the main processor, and the failure management blocks 111 and 121 are periodically polled to enable accurate failure detection.

Polling is a transmission control method that continuously checks the status of other programs or devices in one program or device. A computer or a terminal control device inquires whether or not a transmission request is sequentially made to a plurality of terminal devices. When a request is made, the terminal device is instructed to start transmission, and when there is no request, the next terminal device is inquired.

In the polling method, the terminal apparatus is designated by the address of the terminal apparatus included in the inquiry signal, but the terminal apparatus transmits the transmission end character (EOT) when there is no transmission request. Until the terminal device receives a command from the control station, data transmission is not started. This method can be applied to a branched circuit. When the data processing center controls the flow of data in the system, You will be able to make inquiries based on your processing power

Meanwhile, the process state management blocks 112 and 122 are software blocks for managing the state of the equipment and performing fault isolation and recovery determination of the equipment. The process management blocks 112 and 122 detect the equipment board as a result of periodic monitoring of the equipment board. Receives hardware alarm result and hardware status information detected by equipment, manages the status of communication system by call, and isolates, recovers, and judges the service according to the failure level of the equipment. Print the change information and report it to the operator.

Accordingly, the process state management blocks 112 and 122 perform the MMC instruction related control functions to the operator to perform fault isolation and recovery functions of the system equipment for various communication purposes for maintenance purposes. It reports and displays the current status of the equipment as requested by the operator.

For example, when it is recognized that the U-link cables L1 to L4 are physically demounted, the process state management blocks 112 and 122 set the state of a predetermined communication channel to down and perform a thorough redundancy process for call processing. In addition, it receives and processes the MMC command related to alarm output suppression, alarm level change, alarm masking, etc. from the operator, and informs the operator of the result through the operator terminal.

That is, the failure management blocks 111 and 121 receive alarm-related information from the system and the processor of the corresponding system, grasp the alarm-related information, transmit the same to the relevant block, create and output an alarm message, and transmit it to the operator terminal. (112,122) receives the hardware alarm result and hardware status information detected from the equipment as a result of the periodic monitoring of the equipment board in the lower level processor, and manages the status of the equipment by the call and the service in accordance with the failure level of the equipment Perform isolation and recovery judgments and output the change information to the operator terminal when the status of the equipment changes.

On the other hand, in the case of call processing resources, it has a relation with the call processing block through the call channel equipment system library, and if the service is not available more than a certain value, it outputs the ratio of the current state, that is, the non-service state to the operator. .

In the above-described U-link failure processing method of the integrated access device, when a call through the asynchronous transmission mode equipment fails due to the disconnection and disconnection of the U-link cable, the failure management block in the main processor detects it and detects the main processor. By reporting to the process status management block within the process and sending an alert message to the operator, the normal operation of the process status and call processing status is achieved.

In addition, the present invention performs a failure detection and recovery process for the U-link cable (L1 ~ L4) as described above, to inform the operator of the system failure through the user port and report to the integrated network management system (EMS).

Next, the process state management blocks 112 and 122 perform failure processing according to a problem of the interface of the asynchronous transmission mode equipment 130 and 140 according to the state information of the U-link cables L1 to L4 transmitted from the failure management blocks 111 and 121. It prevents abnormal operation of process status management and call processing status.

At this time, the process state management block (112, 122), if it is recognized that the U-link cable (L1 ~ L4) is physically hernia, and sets the state of the predetermined communication channel to down, for the call processing of the asynchronous transmission mode equipment Perform thorough redundancy.

Meanwhile, the fault management blocks 111 and 121 are software blocks that output fault information and alarm information generated in association with the alarm detection block of the device and the application of the main processor, and process commands related to the alarm.

The fault management blocks 111 and 121 receive various fault messages such as generated hardware alerts, software alerts, and faults, and construct an output message for displaying the analyzed faults and alerts to the outside in the database.

In addition, the failure management block (111, 121) receives a command related to the alarm, that is, alarm suppression output, alarm level change, etc. from the operator according to the requested command and informs the operator of the result.

Next, the process state management blocks 112 and 122 receive hardware alarm results and hardware state information detected as a result of periodic monitoring of the equipment board of the lower level processor to manage the state of the call-based equipment and the failure level of the corresponding equipment. According to the service, the service performs isolation / recovery and determination, and when the state of the equipment changes, the operator informs the operator of the change information by outputting the state.

In addition, for maintenance purposes, the operator reports relevant results to the operator by performing related control functions, including instructions for the operator to perform the function of isolating / recovering the fault of the equipment in various currencies and reporting the current status of the equipment requested by the operator. The call processing resource is associated with the call processing block through the call path system equipment system library.

Looking at the U-link failure processing process of the integrated access equipment of the present invention with reference to FIG.

First, the failure management blocks 111 and 121 in the main processor 110 and 120 periodically detect the state of the U-link cables L1 to L4 (step A101) and record the state information.

At this time, the failure management blocks 111 and 121 detect the state of the U-link cables L1 to L4 through periodic polling operations to ensure accurate failure processing.

Next, when the state change of the U-link cables L1 to L4 is detected (step A102), the failure management blocks 111 and 121 read the alarm file in the hard disk drive HDD of the integrated access mode and then U-link. The state of hernias and mountings is identified (step A103) and reported to the process state management blocks 112 and 122 and the operator (step A104).

At this time, in general, when the information field value of the U-link read from the alarm file is "1", it means a hernia, and when it is "0", it means a mounting state.

On the other hand, the state of the U-link cable (L1 ~ L4) is recorded in the database in real time (step A105), the current time and hernia state at the time of hernia, the exact position of the ATM board to which the U-link belongs, etc. By recording this information, other processes can refer to the status of u-link in real time.

At this time, the failure detection of the U-link cable (L1 ~ L4) is stored as a solid line alarm in the main processor (110,120).

On the other hand, when a call through the asynchronous transmission mode equipment (130,140) failed due to hernia and disconnection of the U-link cable (L1 ~ L4), the failure management block (111, 121) is the operator to the U-link cable (L1 ~ L4) To inform the hernia of the alarm, the process status management block (112, 122) receives an alarm-related command and link status setting command from the operator to perform a fault process (step A106), the operator terminal so that the operator can check the processing result message Through the output (step A107).

At this time, when normal operation of the corresponding system becomes possible as a result of the failure processing, the failure management blocks 111 and 121 detect this and report to the process state management blocks 112 and 122 (step A108) so that subsequent call processing can be normally performed.

Accordingly, the present invention provides the main access point of the integrated access device when the U-link cable is dismounted in a situation in which the U-link cable, which is an interface between the main processor and the asynchronous transmission mode device, normally performs communication in the integrated access device system that is the access gateway. By detecting this in the fault management block in the processor, the integrated access device performs fault handling according to the problem of the asynchronous transmission mode interface to manage the process state and prevent abnormal operation of the call processing state and loss of data. The fault detection of the U-link cable consists of a solid line alarm in the main processor, and the fault management block detects a fault in a cyclic polling manner, which enables accurate fault detection and rapid fault handling.

Claims (2)

In the U-link cable failure processing method of the integrated access device 100 to perform communication in the IP method through the U-link cable (L1 ~ L4), A step (A101) of monitoring the state of the U-link cables L1 to L4 by a periodic polling operation by the failure management blocks 111 and 121 in the main processors 110 and 120 constituting the integrated access equipment 100; (A102) checking whether there is a change in state as a result of the state sensing of the U-link cables L1 to L4; (A103) checking the state of hernia and mounting of the U-link cables L1 to L4 when there is a state change as a result of the checking; Reporting the change in the state of the U-link cables L1 to L4, such as the hernia and mounting state, to the process state management block 112 and 122 and the operator (A104); Recording (A105) a state change of the U-link cables L1 to L4 in a database; Receiving an alarm-related command and a link state setting command according to the states of the U-link cables L1 to L4 from an operator to process the commands by the process state management blocks 112 and 122 (A106); Constructing a processing result message according to the failure processing of the process state management blocks 112 and 122 and outputting the same through an operator terminal (A107); The failure management blocks 111 and 121 detecting the failure processing result and reporting the result to the process status management blocks 112 and 122 (A108); U-link failure processing method of the integrated access equipment, characterized in that comprises a. In the integrated access device 100 that performs communication in the PC method between the main processor (110, 120) and the asynchronous transmission mode equipment (130, 140) through the U-link cable (L1 ~ L4), the main processor (110, 120) Detects the status of the link cables (L1 to L4) through periodic polling operations, checks the status of the U-link cable's sheathing and mounting, and records the status and time of the U-links in the database. (112,122) and a failure management block (111,121) for reporting to the operator, and a process status management block (112,122) for receiving a failure message from the failure management block (111,121) and receiving a failure-related command from the operator to perform failure processing. U-link failure management system of the integrated access equipment, characterized in that consisting of.