JPH02222396A - Restart processing method for electronic exchange - Google Patents

Abstract

PURPOSE:To start call processing in correspondence to the condition of each call processing control processor by executing an initial set to the respective terminals of the respective call processing control processors respectively for the unit of each call processing control processor after the start of the call processing is informed. CONSTITUTION:On the first stage of the restart processing after a fault is detected, an operation manage control processor loads restart activation to all the processors and the respective call control processors start the restart processing. When the initial value of common data is set, the completion of the initial set is respectively informed of the operation manage control processor. After the call processing operation is started by the information of the call processing operation start from the operation manage control processor and an idle rotating state is obtained, the respective call processing control processor successively execute the initial set to subscriber lines and trunks, which are respectively housed, and a usable state is obtained. Thus, the call processing control processor which is early finished the initial set can start the call processing operation without waiting for the other call processing control processor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a restart processing method after a failure is detected in an electronic exchange having a multiprocessor configuration.

[Conventional technology]

In an electronic exchange with a multiprocessor configuration, a call processing control processor arranged for each of a plurality of switches accommodating subscriber lines and trunks and an operation management control processor that performs operation management control are connected by a communication bus.

FIG. 2 shows the state of the conventional restart processing after a failure is detected in this electronic exchange having a multiprocessor configuration.

The operation management control processor (OMF) 11 restarts all processors (step ■), and based on this, each call processing control processor (CLP) 12i, 12j starts restart processing (step ■).

The operation management control processor 11 itself performs its own initial settings (step ■), and waits in this state until the initial settings of all call processing control processors 12 are completed (step ■).

Each call processing control processor 12i, 12j initializes common data (step 0), and initializes all subscriber lines and all trunks accommodated under each processor (step @, 0). . Then, when these initial settings are completed, a report of the completion of the initial settings is sent to the operation management control processor 11 (step ■
). Each call processing control processor 12i, 12j thereby enters a state of waiting for the start of call processing (step 0).

On the other hand, when the operation management control processor 11 completes the initial setting of the all call processing control processors 12i and 12j, it performs post-initial setting processing (step 2) and outputs a restart message (step 2). Then, a call processing start notification is sent to each of the call processing control processors 12i and 12j (step ■), and an idle state is entered (step ■).

When the operation management control processor 11 notifies the start of call processing, each call processing control processor 12i, 12j starts call processing (step 0) and becomes idle (step @).
.

[Problem to be solved by the invention]

FIG. 3 shows the configuration of the exchange system shown in FIG. 2. In this example, the operation management control processor 11 connects the individual call processing control processors 12 via the communication bus 13.
1.12j is connected. A switching network (NW) 15 accommodating only the subscriber 14 is connected to one of the call processing control processors 12j, so that if the initial setting of the subscriber line is performed in step 0, You can now report the completion of initial settings (step 0). On the other hand, the switching network (NW) connected to the other call processing control processor 12i
16 accommodates trunks 17 as well as subscriber lines 14, making these the largest number in the switching system. Therefore, even if one call processing control processor 12j completes the initial setting, the other call processing control processor 1
2j has not yet completed the initial settings, and the operation management control processor 11 cannot output a call processing start notification.

In other words, in the conventional electronic switching system restart processing method, the operation management control processor (in this case, the operation management control processor 121) that finishes the initial settings last controls the time until the start of call processing operations in the entire switching system. There was a problem with this.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a restart processing method for an electronic exchange that can start call processing according to the status of each call processing control processor.

[Means to solve the problem]

In the present invention, each call processing control processor performs only the initial setting processing of the call processing control processor common data after receiving the initial setting start notification from the operation management control processor, and performs subscriber line initial setting and trunk initial setting. The completion of the initial settings is reported to the operation management control processor. Then, after the call processing operation is started and the call processing operation starts in response to the call processing operation start notification from the operation management control processor, the initial settings are sequentially performed for the subscriber lines and trunks accommodated by each call processing control processor. By doing so, these subscriber lines and trunks are made available for use one after another.

That is, in the present invention, the above-mentioned object is achieved by having each call processing control processor initialize each terminal after the call processing start notification is made.

"Example" The present invention will be described in detail below with reference to Examples.

FIG. 1 is a diagram for explaining a restart processing method of an electronic exchange according to an embodiment of the present invention.

In this method as well, in order to simplify the explanation, it is assumed that two call processing control processors 121.12j are typically connected to the operation management control processor 11, and the system configuration shown in FIG. 3 is applied as is.

Now, in this Figure 1, the operation management control processor 11 is in the first stage (step ■) of restart processing after a failure is detected.
to restart all processors. In this example, the call processing control processors 12i, 12'' are notified of the start of restart processing. After this, the operation management control processor 11 executes its internal initial setting process (step ■), and then
A state is entered in which it waits for initial setting completion reports to arrive from all the call processing control processors 12i and 12j (step 2).

On the other hand, each call processing control processor 12i.

12j starts the restart process when it is notified of the start of the restart process (step ■). Then, initial values of the common data are set (step ①), and at this point, a report of completion of initial settings is sent to the operation management control processor 11 (step 0). In this state, these call processing control processors 12] and 12j wait for the start of call processing.

When the operation management control processor 11 receives the initialization completion report from the all-call processing control processors 12i and 12j, it performs initialization post-processing (step [shares]) and outputs a restart message (step Φ).

Then, it notifies all call processing control processors 12i and 12j of the start of execution of the call processing operation (step ■), and enters an idle state (step 0).

When the call processing control processor 12i that accommodates subscriber lines and trunks receives the call processing operation start notification from the operation management control processor 11, it starts call processing (step ■) and enters an idle state (step ■). , immediately performs initial settings for all subscriber lines (step 0). Next, initial settings are made for all trunks (step [phase]), and the system enters an idle state (step 0). In this state, each terminal becomes usable one after another.

Furthermore, when the call processing control processor 12j that accommodates only subscriber lines and does not accommodate trunks similarly receives a call processing operation start notification from the operation management control processor 11, it starts call processing (step @). , it becomes idle (step @), and immediately initializes all subscriber lines (
Step (2) is performed and the machine enters an idling state (step 0).

In this state, each subscriber line becomes available for use one after another regardless of the initial settings of the call processing control processor 121.

〔Effect of the invention〕

As explained above, according to the present invention, among the conventional processes, the subscriber line initial setting and trunk initial setting processes are performed after each call processing control processor becomes idle. Therefore, the time it takes for a call processing control processor to become idle is shortened, and the call processing control processor whose initial settings have been completed first waits for the call processing control processor whose initial settings have not yet been completed and starts call processing operations. It is possible to prevent waste caused by not being able to do the following.

As a result, in the present invention, the time until the initial setting is completed depends only on the number of terminals accommodated in each call processing control processor, and is independent of the number of terminals accommodated in other call processing control processors. In addition, since each terminal recovers and becomes available for use after its respective call processing control processor becomes idle, this has the effect of reducing the average time that each terminal is in an unusable state. be.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a restart processing method of an electronic exchange in an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a restart processing method of a conventional electronic exchange, and FIG. 3 is an explanatory diagram showing the configuration of the switching system. This figure shows the system structure. 11...Operation management control processor, 12i, 1
2j...Call processing control processor, 13...
...Communication bus, 14...Subscriber line, 15.16
...exchange network, 17... trunk. Applicant: NEC Corporation Representative: Patent Attorney: Umeo Yamauchi Figure 1 Figure 2

Claims (1)

[Claims] Restarting after a failure is detected in an electronic switching system with a multiprocessor configuration that includes an operation management control processor that performs operation management control, and a plurality of call processing control processors that are connected to the operation management control processor via a communication bus and perform call processing control. processing, in which each call processing control processor receives an initial setting start notification from the operation management control processor, performs only the initial setting processing of the call processing control processor common data, and notifies the operation management control processor that the initial setting is complete. After the call processing operation is started and the call processing operation is idle due to the call processing operation start notification from the operation management control processor, the initialization is performed sequentially for the subscriber lines and trunks accommodated by these call processing control processors. A restart processing method for an electronic exchange, characterized in that by executing settings, these subscriber lines and trunks are made available for use one after another.