KR100279677B1 - How to output fault message through step diagnosis of switch link - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a method for outputting a fault message through fault diagnosis of a switch link.

2. The technical problem to be solved by the invention

An object of the present invention is to provide a method of outputting a fault message only when a fault is caused by a fault by diagnosing a fault in stages.

3. Summary of the Solution of the Invention

The present invention, the first step of monitoring whether the switch link state failure; A second step of determining whether a link failure occurs so that the switch link state changes from normal to abnormal; A third step of checking whether an alarm message of the switch board is output; A fourth step of checking a switch link state of another system to which the link is connected; And outputting a link failure message and transitioning to a switch link monitoring state.

4. Important uses of the invention

The present invention is used in an asynchronous transfer mode exchange.

Description

How to output fault messages by step-by-step fault diagnosis of switch links

The present invention relates to a method for outputting a fault message through step-by-step fault diagnosis of a switch link, and a computer-readable recording medium having recorded thereon a program for realizing the fault message.

Conventionally, when a failure occurs in any switch link, by outputting all of them to the operator terminal, a large amount of failure message is output is used to deliver all the failure information to the operator.

However, the conventional method described above has an inefficient problem such as a large amount of failure message output and flooding of failure information.

In order to solve the above problems, the present invention, by diagnosing the failure step by step when a failure occurs in the switching link, through the step-by-step failure diagnosis of the switch link to output a failure message only when the failure due to the link itself failure It is an object of the present invention to provide a computer-readable recording medium recording a fault message output method and a program for realizing the fault message.

1 is a block diagram of an asynchronous transmission mode switching system to which the present invention is applied.

2 is a configuration diagram of a switch network module constituting an access switching network module (ASNM) or an interconnection switching network module (ISNM) of an asynchronous transmission mode switching system to which the present invention is applied.

3 is a flowchart illustrating a method of outputting a fault message through step-by-step fault diagnosis of a switch link according to the present invention;

4 is a flow diagram of an embodiment of a switch board state monitoring applied to the present invention.

5 is a configuration diagram of a failure diagnosis table of a link applied to the present invention.

According to an aspect of the present invention, there is provided a failure message output method applied to an asynchronous transmission mode switch, the method comprising: a first step of monitoring a failure of a switch link state; A second step of determining whether a switch link failure occurs due to a monitoring result of the first step and the switch link state changes from normal to abnormal; A third step of checking whether an alarm message of a switch board is output when the switch link state is changed from normal to abnormal according to the determination result of the second step; A fourth step of checking a switch link state of another system to which the link is connected if an alarm message of a switch board is not output according to the confirmation result of the third step; And a fifth step of outputting a link failure message and transitioning to a switch link monitoring state when the switch link state of another system to which the link is connected is normal according to the test result of the fourth step.

The present invention also provides asynchronous transmission mode switching system having a processor for outputting a failure message through the step-by-step failure diagnosis of the switch link, a first function for monitoring the failure of the switch link state; A second function for determining whether a switch link failure occurs and the switch link state changes from normal to abnormal according to a monitoring result of the first function; A third function of checking whether an alarm message of a switch board is output when the switch link state is changed from normal to abnormal according to a determination result of the second function; A fourth function of checking a switch link state of another system to which the link is connected if an alarm message of a switch board is not output according to the confirmation result of the third function; And according to a check result of the fourth function, if a switch link state of another system to which the link is connected is normal, outputs a link failure message and reads a program for realizing a fifth function to transition to a switch link monitoring state. Recordable media.

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

1 is a block diagram of an asynchronous transmission mode switching system to which the present invention is applied. The asynchronous transmission mode switching system includes an ATM local switching subsystem (ALS) 101 and 102 and a central switching subsystem (ACS: ATM). Central Switching Subsystem) 103 is composed of two kinds of subsystems.

Subscriber Switching Subsystem (ALS) 101, 102 incorporates an Access Switching Network Module (ASNM) 106, 112, which is a self routing switch module, for user call processing and Call and Connection Control Processor (CCCP) 108 for maintenance, Subscriber Interface Modules (SIM) 104 and 110 for subscriber matching, and relay line matching module for relay line matching ( TIM: Trunk Interface Module (105, 111).

A subscriber switching subsystem (ALS) 101, 102 operates as a concentrator having an aggregation ratio of n: m, where n is the number of user-side links 118, 121 and m is the number of switch-side links 120, 123. The central switching subsystem (ACS) 103 performs the interconnection function between the subscriber switching subsystems (ALS) and acts as a distribution device for large capacity systems.

When a call request is made from a subscriber, the subscriber switching subsystem (ALS) detects it, performs the call service, translates the corresponding subscriber switching subsystem (ALS) through the called subscriber number under the supervision of the calling subscriber switching subsystem (ALS). Require number translation to the called subscriber exchange subsystem (ALS).

Incoming Subscriber Switching Subsystem (ALS) selects an optimal path at the same time as number translation and notifies the calling Subscriber Switching Subsystem (ALS), and the calling Subscriber Switching Subsystem (ALS) sets up the call path.

The originating subscriber exchange subsystem (ALS) counts the cells delivered during a call and sends the billing data to the central switching subsystem (ACS) with user requested service after the call is completed. The originating subscriber exchange subsystem (ALS) calls the call. Restore data to an idle state.

The central switching subsystem (ACS) is a pure interconnector without call processing for exchanging information between the subscriber switching subsystems (ALS) and, unlike the subscriber switching subsystem (ALS), does not have a call processing controller.

An Interconnection Switch Network Module (ISNM), which is a switch network module of the Central Switching Subsystem (ACS), may use the same switch element as the Subscriber Switching Subsystem (ALS) as a magnetic routing switch.

The Central Exchange Subsystem (ACS) has an Operation and Maintenance Processor (OMP) 117 for system-wide operation and maintenance, providing large capacity as well as system-wide maintenance, testing, measurement, and statistical functions. Storage device control management and various input / output statement control with the operator.

Cell Mux and Demux hardware assembly (CMDA) (107, 113) transmits asynchronous transmission mode cells from the switch link to the processor or test device according to the Virtual Path Identifier (VPI). The cell transmitted from the processor or the test device is sequentially transmitted to the switch.

The test apparatus 109, 115 generates a test cell capable of testing the state of the link, transmits the cell to the switch link, receives and analyzes the test cell looped back from the switch link, and notifies the processor of the result.

2 is a configuration diagram of a switch network module constituting an access switching network module (ASNM) or an interconnection switching network module (ISNM) of an asynchronous transmission mode switching system to which the present invention is applied.

The switch network module 201 includes two pairs of switch memory and link board assembly (SMLA) boards 203 and 204 and a pair of switch link and controller board assembly (SLCA). There are boards 205 and 206.

The switch link and controller board unit (SLCA) board controls the switch network module (SNM) and manages its state, so that the call and connection control processor (CCCP), the parent processor of the switch network module, or It interacts with the Operation And Maintenance Processor (OMP) 202.

Software residing on the switch link and controller board unit (SLCA) board receives switch requests from the higher processor call and access control processor (CCCP) or operation and maintenance processor (OMP) to control the switch network module. It operates the device firmware (SMLA Firmware), and receives the status information of the switch network module from the switch memory and the link board device firmware (SMLA Firmware).

Switch memory and link board device (SMLA) boards are cascaded with two 16x16 unit switch blocks. Thus, sixteen external links 208 are connected to other subsystems, and eight internal links 207 are connected to another switch memory and link board device (SMLA) board in the same subsystem.

The switch memory and link board device (SMLA) are dual-active and operate in pairs, and two pairs of switch memory and link board device (SMLA) boards are used to form a 32X32 switch.

The present invention is used to control fault message output of external links and internal links in switch memory and link board device (SMLA) boards.

3 is a flowchart illustrating a method of outputting a fault message through step-by-step fault diagnosis of a switch link according to the present invention.

There are various causes of failure in switch links, which can be caused by a fault in the link itself, a failure in the hernia or malfunction of the switch board to which the link belongs, and the failure of other links connected to the link. In addition, the status of the board to which the connected link belongs can be affected by hernia or malfunction.

If the fault is not purely caused by one's own fault, the fault message (switch board dismount message, fault message of the connected link, etc.) for other causes is outputted first to the operator, and this is a fault of a link other than its own fault. Because their own error message is also output, if you output all these messages to the operator, you will not only provide unnecessary information to the operator, but also bring chaos due to unnecessary information.

In addition, when the switch board is mounted, all the links included in the switch board may fail, and thus a system load may be generated due to a plurality of failure message outputs.

Therefore, since it is necessary to analyze the cause of the link failure step by step, it is necessary to determine the failure due to the defect of its own link, and to output the failure message only when it is due to its own defect. By diagnosing the cause of the fault step by step, it provides a way to output a fault message only when there is a defect in its link.

Switch link state monitoring is initiated (301), and if any failure occurs later (302), it is determined whether the failure changes the state of the link from normal to abnormal (303).

As a result of the determination, if the state of the link does not change from a normal state to an abnormal state due to a failure, the failure is ignored and the link state is continuously monitored (301).

As a result of the determination, if the link status changes from normal to abnormal due to a failure, after correcting the link state data in the database abnormally (304), it is checked whether an alarm message of the upper switch board including the link is output ( 305).

As a result of the check, when an alarm message of the upper switch board including the link is output, since the failure is caused by the failure of the upper board, the failure message does not need to be output and the link state is continuously monitored (301).

As a result of the check, if the alarm message of the upper switch board including the link is not output, it is checked whether the alarm message of the switch board of another system to which the link is output is output (306).

As a result of the test, if an alarm message of the switch board of another system to which the link is connected is output, this failure is caused by a failure of the switch board of the other system. ).

As a result of the check, if an alarm message of a switch board of another system to which a link is connected is not output, it is checked whether the switch link state of another system to which the link is connected is normal (307).

If the investigation shows that the switch link state of the other system to which the link is connected is not normal, the failure is caused by the switch link failure of the other system to which the link is connected. (301).

As a result of the investigation, if the switch link state of the other system to which the link is normal is a failure due to its own fault, the operator outputs a fault message to the operator (308) and continues to monitor the link state (301).

As a result of the switch link state monitoring result 301, when a switch link failure is released (309), it is determined whether the link state changes from abnormal to normal (310).

As a result of the determination, if the link state does not change from abnormal to normal, the failure is ignored and the link state is continuously monitored (301).

As a result of the determination, if the link state changes from abnormal to normal, the link state data in the database is corrected to normal (311), and the link state is continuously monitored (301).

4 is a flowchart illustrating an embodiment of a switch board state monitoring applied to the present invention.

As a result of the switch board state monitoring result 401, if a switch board hernia occurs (402), it is checked whether the switch board state changes from normal to abnormal (403).

As a result of the investigation, if the board state does not change from normal to abnormal, it is ignored and continues to monitor the switch board state (401).

As a result of the investigation, when the board state is changed from normal to abnormal, after the switch board state data in the database is abnormally corrected (404), the switch board alert message is output to the operator (405).

As a result of the switch board state monitoring 401, when switch board mounting occurs (406), it is checked whether the switch board state changes from abnormal to normal (407).

As a result of the investigation, if the board state does not change from abnormal to normal, it is ignored and continues to monitor the switch board state (401).

As a result of the investigation, if the board state is changed from abnormal to normal, after modifying the switch board state data in the database to normal (408), and outputs a switch board alarm release message to the operator (409).

5 is a configuration diagram of a failure diagnosis table of a link applied to the present invention.

The link number 501 records the serial number of the link, the link state 502 is configured as normal or abnormal, and the upper switch board state 503 is configured as normal / abnormal of the board to which the link belongs. The switch number 504 records the switch number when the link is connected to another switch.

The connected link number 505 records the link number when the link is connected to another switch, and the connected switch board state 506 records the state of the connected switch board as normal / abnormal, and is connected to the link state 507. Records the status of the connected switch link as normal / abnormal.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited by the drawings.

The present invention as described above, because the error message is output only when there is a defect in its own link by diagnosing the cause of the failure step by step, without causing confusion to the operator, and also prevent unnecessary output of the error message. There is an excellent effect to prevent the system load.

Claims (8)

In the failure message output method applied to the asynchronous transfer mode switch, A first step of monitoring whether or not a switch link state has failed; A second step of determining whether a switch link failure occurs due to a monitoring result of the first step and the switch link state changes from normal to abnormal; A third step of checking whether an alarm message of a switch board is output when the switch link state is changed from normal to abnormal according to the determination result of the second step; A fourth step of checking a switch link state of another system to which the link is connected if an alarm message of a switch board is not output according to the confirmation result of the third step; And A fifth step of outputting a link failure message and transitioning to a switch link monitoring state if the switch link state of another system to which the link is connected is normal according to the test result of the fourth step; Error message output method through the step-by-step failure diagnosis of the switch link comprising a. The method of claim 1, The second step, A sixth step of judging whether a switch link failure occurs and the switch link state changes from normal to abnormal as a result of the monitoring of the first step; And A seventh step of transitioning to the switch link monitoring state after modifying the link state data to normal when the switch link failure is changed from abnormal to normal as a result of the monitoring of the first step; Error message output method through the step-by-step failure diagnosis of the switch link comprising a. The method of claim 1, The third step, A sixth step of checking whether an alarm message of the switch board is output after the link state data is abnormally corrected when the switch link state is changed from normal to abnormal as a result of the determination of the second step; And A seventh step of transitioning to a switch link monitoring state if the switch link state does not change from normal to abnormal as a result of the determination of the second step Error message output method through the step-by-step failure diagnosis of the switch link comprising a. The method of claim 1, The fourth step, A sixth step of checking a switch link state of another system to which the link is connected if an alarm message of the switch board is not output as a result of the checking of the third step; And A seventh step of transitioning to a switch link monitoring state when an alarm message of the switch board is output as a result of the checking of the third step; Error message output method through the step-by-step failure diagnosis of the switch link comprising a. The method according to any one of claims 1 to 4, The fifth step, An eighth step of outputting a link failure message and transitioning to a switch link monitoring state if the switch link state of another system to which the switch link is connected is normal as a result of the inspection of the fourth step; And A ninth step of transitioning to a switch link monitoring state if the switch link state of the other system to which the switch link is connected is abnormal as a result of the inspection of the fourth step; Error message output method through the step-by-step failure diagnosis of the switch link comprising a. The method of claim 3, wherein The sixth step, An eighth step of confirming whether an alarm message of an upper switch board including the switch link is output; A ninth step of transitioning to a switch link monitoring state when an alarm message of an upper switch board including the switch link is output as a result of the checking of the eighth step; And If the alarm message of the upper switch board including the switch link is not output as a result of the checking of the eighth step, the tenth step of checking whether the alarm message of the switch board of another system to which the switch link is connected is output. Error message output method through the step-by-step failure diagnosis of the switch link comprising a. The method of claim 3, wherein The alarm message output process of the switch board of the sixth step, An eighth step of monitoring a switch board state; As a result of the monitoring of the eighth step, it is checked whether the switch board is mounted and the switch board state is changed from normal to abnormal. If the switch board state is not changed abnormally, the state transitions to the switch board monitoring state, and the switch board state is A ninth step of changing the abnormal state of the switch board state abnormally, outputting a switch board alarm message, and then transitioning to the switch board monitoring state; And As a result of the monitoring in the eighth step, it is checked whether the switch board is mounted and the switch board state is changed from abnormal to normal. If the switch board state is not changed to normal, the switch board state is changed to the switch board monitoring state. A tenth step of changing the data of the switch board state to a normal state and transitioning to the switch board monitoring state after outputting a switch board alarm release message; Error message output method through the step-by-step failure diagnosis of the switch link comprising a. In order to output a fault message through the step-by-step fault diagnosis of the switch link, to an asynchronous transmission mode switching system having a processor, A first function of monitoring the failure of a switch link state; A second function for determining whether a switch link failure occurs and the switch link state changes from normal to abnormal according to a monitoring result of the first function; A third function of checking whether an alarm message of a switch board is output when the switch link state is changed from normal to abnormal according to a determination result of the second function; A fourth function of checking a switch link state of another system to which the link is connected if an alarm message of a switch board is not output according to the confirmation result of the third function; And A fifth function of outputting a link failure message and transitioning to a switch link monitoring state when a switch link state of another system to which the link is connected is normal according to a test result of the fourth function; A computer-readable recording medium having recorded thereon a program for realizing this.