JPS62176288A - Channel system equipment diagnosing control method - Google Patents

Abstract

PURPOSE:To shorten a diagnosing executing time and to improve maintenance by arranging a diagnosing control exclusive-use processor in the internal part of the channel type equipment of a distribution control type time division converter and executing the diagnosis autonomically. CONSTITUTION:At interrupting line signal devices 0-system and 1-system (12 and 13) and distributing step channel equipments 0-system and 1-system (14 and 15) which are the diagnosing objects, a diagnosing control exclusive-use processor is arranged, main control devices 0-system and 1-system (1 and 2) have the diagnosing executing control function of respective channel type equipments in addition to the call control function, a person in charge of maintenance inputs a diagnosing executing instructing command from the main control device 0-system or 1-system (1 and 2), the diagnosing execution is started, the command is sent to the channel type equipment by the communication between processors, the channel type equipment autonomically executes the diagnosis in accordance with the command and the diagnosing result is transferred to a host processor (main control device) by the communication between the processors.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a communication line system diagnosis control method in a distributed time-division switching system, and in particular, to a method for controlling communication line system diagnosis in a distributed time-division switching system, in particular, when access to a communication line system diagnosis target device is performed via a plurality of processors. This invention relates to a diagnostic control method for communication line equipment in a multiprocessor type time-division switch.

[Conventional technology]

Diagnosis of communication line equipment in a conventional multiprocessor type time-division switch requires preprocessing such as path connection necessary for diagnosis execution, order editing and sending to communication line equipment, reading control of answer data, expected value and All processing procedures, such as comparison and judgment processing, are stored in a maintenance/operation processor or related processors and executed sequentially, resulting in a communication path system diagnostic control method driven by an upper processor.

[Problem that the invention seeks to solve]

The conventional diagnosis control method for communication path systems in distributed time-division switching systems configured with multiprocessors basically performs diagnosis by sequential diagnosis control access from the maintenance and operation processor, which has the following drawbacks. had.

■The diagnostic execution time of the repetitive processing section is extremely long.

This is especially true for memory tests, time slot tests, etc.

■It is necessary to type out a specific message to notify maintenance personnel that a diagnosis is being performed.

■It is necessary to add wasteful processing such as subdividing the diagnostic range by the parameters of the diagnostic command.

■Diagnosis execution time is also uncertain as it is affected by exchange traffic conditions, load conditions of other online programs, and file conditions associated with service additions. Diagnosis items that are time-sensitive tend to have complicated processing.

■ Overlay control of diagnostic procedures increases, the number and amount of inter-processor transfers generally increases, and the transfer time becomes longer, leading to a decline in exchange service from the aspect of real-time performance.

- Diagnosis execution time generally becomes enormous, and when MTTR etc. are taken into consideration, this causes an abnormal decline in maintainability and operability.

[Means for solving problems]

In order to eliminate such drawbacks, the present invention incorporates a diagnostic program and a processor that executes the diagnostic program in each communication line device, and executes the diagnostic execution commands hierarchically based on the diagnostic execution commands from the maintenance and operation processor. The information is transmitted to the built-in processors of communication line equipment, the necessary diagnosis is autonomously executed by the processors built in each communication line equipment, and the diagnostic execution results are hierarchically reported to the maintenance and operation processor.

[Effect]

In the present invention, each communication path system device to be diagnosed autonomously executes the diagnosis using a built-in processor dedicated to diagnostic control, and the time required for executing the diagnosis of the communication path system devices is significantly shortened.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for diagnosing and controlling communication path equipment according to the present invention will be described with reference to the drawings. In the figure, 1 and 2 are main control devices 0 and 1 systems as processors, 3 is a call control device as a processor, 4 and 5 are inter-processing device communication control devices 0 and 1 systems, 6, 10 and 7, Reference numeral 11 denotes a communication path bus control circuit O system and 1 system, 8 and 9 a trunk line signal processing device O system and 1 system as a processor, and 12 and 13 a trunk line signal device 0 system as a diagnostic target device with a built-in processor. 1 system, 14 and 15 are distribution stage channel devices O system and 1 system as diagnostic target devices each having a built-in processor. In the figure, 21 and 22 are 0-system buses and 1-system buses between call control devices, 23 and 24 are 0-system buses and 1-system buses between signal processing devices,
25.27 and 26.28 are communication line O-system buses and 1-system buses.

Next, the functions of each configuration will be explained. Main controller 1.
2 has a call processing control function as well as an execution control function for diagnosing each communication path system device, and is duplexed. The call control device 3 is generally configured in a single layer configuration and arranged in a load-balanced manner. The inter-processor communication control device 4.5 connects the main control devices 1, 2. Call control device 3. Communication system between trunk line signal processing devices 8 and 9? 11 and competition control, and has a duplex configuration. The communication path bus control circuits 6, 7 are connected to the main controllers 1, 2 . Call control device 3. It has a communication control function between the trunk line signal processing devices 8 and 9 and the distribution stage channel devices 14 and 15 as devices to be diagnosed, and the channel bus control circuits 10 and 11 are connected to the main control device 1,
2. Call control device 3. It has a communication control function between the trunk line signal processing device 8.9 and the trunk line signal device 12.13 as a device to be diagnosed. Communication route bus control circuit 6, 7, 10
．． Reference numeral 11 has a duplex configuration, and the load is distributed according to the number of communication line devices to be driven.

Next, each bus will be explained. The bus 21.22 is connected to the main controller 1.2. Multiple call control devices3. This is for communication between the inter-processing device communication control devices 4 and 5.

Hasses 23, 24 are trunk line signal processing devices 8, 99, communication path bus control circuits 6, 7 . Communication between processing devices This is communication between the control devices 4 and 5. Buses 25 and 26 are communication path bus control circuits 6
, 7 and the distribution stage channel device 14.15, and are intertwined on the distribution stage channel device 14.15 side. Has27.28 is the communication route bus control circuit 10.11
This is a bus for transmitting and receiving signals between the trunk line signal device 12.13 and the trunk line signal device 12.13, and is similarly intertwined on the trunk line signal device 12.13 side. Also, the bus connecting the middle wE line signaling device 12.13 and the distribution stage channel device 14.15 is also interlaced.

Next, the diagnosis execution procedure will be described below, taking the diagnosis of the trunk line signal device 1 system as an example. Diagnostic access is from main controller 0 system
from the trunk line signal processing device 0 system 8 via the inter-processor communication control device 0 system 4, and further from the trunk line signal processing device 0 system 8 via the communication path bus control circuit O system 10. An instruction is given to the trunk line signal device 1 system 13, which is the device to be diagnosed.

Regarding the distribution stage highway interface circuit section in the trunk line signaling device 1 system 13, the trunk line signaling device 1 system 1
The distribution stage communication path device 1 system 15 is used as a tool device, and pre-processing such as connection/release of the communication path within the distribution stage communication path device 1 system 15 is From main controller O system 1 to processing unit communication control device 0 system 4
Then, the instruction is sent to the distribution stage channel device 1 system 15 via the channel bus control circuit 0 system 6, and executed. In addition,
The diagnostic access route is shown in bold in the figure.

Next, regarding the operation when executing the diagnosis, the trunk line signal device 1
3 as a diagnostic target device. The diagnostic system includes the main controller 0 system 1 which is the active system, and the 0 system bus 21 between call control devices. Inter-processing device communication control device 0 system 4, inter-signal processing device 0 system bus 23. Trunk line signal processing device 0 system 89 communication path bus control circuit O system 6, 10, communication path system 0 system bus 25.27, medium 41 line signal device 1 system 13 (non-current system) which is the equipment to be diagnosed, and tools It is constructed using the distribution stage channel device 1 system 15 which is not currently in use as a device.

The execution of the diagnosis is started and executed by the maintenance person inputting a diagnosis execution instruction command in the main controller 0 system 1. The main control device 0 system 1 recognizes this diagnosis execution instruction command, and the diagnosis target device is the trunk line signal device 1 system 13.
If it identifies that the (referred to as "Communication"), and waits for response monitoring of the diagnosis results. Trunk line signal processing device 0 system 8 is
When the above command is received, all programs necessary for diagnosing the trunk line signal device I system 13 are pulled up from an external file memory (not shown), and diagnosis execution instructions for each diagnostic function item are sent to the communication line bus control circuit O system. 10, to the trunk line signal device 1 system 13 in accordance with the diagnostic execution procedure, and waits for response monitoring of the diagnosis result from the trunk line signal device 1 system 13.

When the diagnostic function item is closed in the trunk line signal device 1 system 13, the trunk line signal processing device O system 8 is a diagnostic control processor (hereinafter referred to as "trunk line signal device processor") in the trunk line signal device 1 system 13. ), but if the diagnostic function item uses the distribution stage channel device 1 system 15 as a tool device, first the distribution stage channel device 1 After sending the diagnosis preprocessing instruction to the system 15, it issues a diagnosis execution start instruction to the trunk line signal device processor, and then waits for a response from the diagnosis execution result.

When each diagnostic item of the trunk line signal device l system 13 is executed normally, the trunk line signal processing device 0 system 8 sequentially instructs/executes diagnosis for the trunk line signal device processor, and a certain diagnosis is performed. If the result is bad for a functional item,
This information is sent to the upper processor from the trunk line signal equipment processor to the trunk line signal processing equipment 0 system 8, and then to the main controller 0 system 1 via the interprocessor communication control device 0 system 4. The results are reported, and when all diagnostic function items are completed normally, the results are reported through the same route, and this fact is typed out under the control of the main controller O system 1 and sent to the maintenance personnel. will be notified. With the above method, the number of P-to-P communications that most affect the diagnostic execution time in a multiprocessor system can be minimized,
Diagnostic execution time can be significantly shortened.

〔Effect of the invention〕

As explained above, the present invention provides a dedicated processor for diagnostic control inside each of the communication path devices to be diagnosed in a multiprocessor type time-division switch and autonomously executes the diagnosis. This has the effect of significantly shortening diagnostic execution time and improving maintainability.

Specifically, the following effects are achieved.

■The diagnostic execution time of the repetitive processing section is reduced.

■If there is no abnormality in the diagnosis results, there is no need to notify the maintenance personnel that the diagnosis is being executed.

- Eliminates wasteful processing such as subdividing the diagnostic range based on the parameters of the diagnostic command.

(2) Diagnosis is executed by a diagnostic program in each communication path device, so processing is simplified.

■ Overlay control of diagnostic procedures and the number and amount of transfers between processors are reduced.

■Diagnosis execution time is reduced and maintainability is improved.

[Brief explanation of drawings]

FIG. 1 is a system diagram showing a system for explaining an embodiment of a method for diagnosing and controlling communication path equipment according to the present invention. 1... Main controller O system, 2... Main controller 1 system, 3... Call control device, 4... Inter-processing device communication control device O system, 5... Interprocessor communication control device I system,
6, 10... Communication path Hass control circuit 0 system, 7, 11...
. . . Communication path hash control circuit 1 system, 8 . . . Trunk line signal processing device 0 system, 9 . . . Trunk line signal processing device 1 system, 1
2... Medium "m line signal device 0 system, 13... Trunk line signal device 1 system, 14... Distribution stage communication channel device O system, 1
5...Distribution stage channel device 1 system, 21...O system bus between call control devices, 22...1 system bus between call control devices, 23...0 between signal processing devices Series bus, 24...
Inter-signal processing device 1 system bus, 25, 27... communication path system 0 system bus, 26, 28... communication path system 1 system bus. Patent applicant: NEC Corporation Nippon Telegraph and Telephone Corporation

Claims (1)

[Claims] In a communication line equipment diagnostic control method in a multiprocessor type time division switch in which a plurality of processors are functionally, loaded and hierarchically distributed, a diagnosis program and a processor for executing the diagnosis program are installed in each communication line equipment. Based on the diagnosis execution command from the maintenance operation processor, the diagnosis execution command is hierarchically transmitted to the built-in processor of each communication path system device, and the necessary diagnosis is autonomously executed by the built-in processor of each communication path system device. A communication line system diagnosis control method characterized in that execution results are hierarchically reported to the maintenance and operation processor.