JP3211585B2 - Operation status judgment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for judging an operation state by software used when a package having a redundant configuration is inserted or removed or a failure occurs.

In recent years, devices for a new synchronous network such as a high-speed optical transmission device and a cross-connect device have been increasingly equipped with a high-speed digital line capable of complex transmission of telephone data and image data. When it occurs, it has a great impact on society.

[0003] In addition, since the management information for managing the package to be mounted and the state of the device is increasing with the diversification of the device, high reliability of the management information and high-speed processing are required. Further, the multifunctionality of the device increases the proportion of software in controlling and monitoring the system, and therefore, improvement in software development efficiency is required.

[0004] In view of the above, it is determined whether or not a hardware part composed of these packages can be operated by insertion / removal or failure of a SEL-equipped package and a switching target package which realize a redundant configuration in a device for a new synchronous network. It is necessary to notify the maintenance person of the indicated operation status.

[0005] Therefore, as software, the operation state is read from the control system firmware that manages the operation state of the package realizing the redundant configuration, or the logical state of the operation state corresponding to the redundant configuration in the device is read. The analysis is performed to obtain an operational / inoperable analysis result.

However, when reading the operation state, it is considered that the processing time may increase due to the communication between the software and the firmware, or data may be inconsistent. Therefore, it is possible to reduce the number of times of communication during this time so that the operation state can be collected. is necessary.

Further, when analyzing the operation state depending on the hardware redundant configuration, it is necessary to develop a plurality of types of software depending on the type of the redundant configuration, and the development scale may be increased. Therefore, it is necessary to analyze an operation state that does not depend on a redundant configuration of hardware.

[0008] That is, it is necessary to reduce the processing time of communication, increase the reliability of data, and improve the efficiency of software development.

[0009]

2. Description of the Related Art FIG.
FIG. 7 is an example of a block diagram for executing the processing of FIG.

The notification process and the reading process will be described below with reference to FIG.
5 will be described with reference to FIG. In the hardware unit 2, the package 2 (hereinafter abbreviated as PKG2) and the PKG3 have a redundant configuration, and one of the PKG2 and the PKG3 is selected by the selector (SEL) in the PKG1. Configuration. (1) In the case of the notification process The hardware operation status list 31 stored in the firmware 3 in FIG. 5 has the PKG addresses (PKG1 to PKG1) in the upper row.
PKG3), the operation status data (E: operable, D: inoperable) is stored in the lower row, respectively. It is assumed that all the lower rows are in the E state because PKG1 to PKG3 are mounted at first.

After that, the firmware 3 detects via the transmission path a notification indicating that the PKG 2 has been removed from the hardware unit 2 via the transmission line. Is registered ("D" indicating inoperability is registered), and the software unit 4 is notified.
Then, the software unit activates the device state analysis processing distribution object 44.

Operation state analysis processing distribution object 44
Looking at the distribution list of analysis processing corresponding to the PKG address in the device, it was found that it was necessary to perform analysis 1 and analysis 2 in the case of PKG2. The operation state analysis object 43b for processing the object 43a and the analysis 2 is started (see S1 and S2 in FIG. 6).

The operation state analysis objects 43a and 43b are provided for each of the number of operation states managed by the software unit 4, and activate the operation state read objects 42a and 42b (the same number as the operation state analysis objects). See 6-S3).

The operation state read objects 42a and 42b are hardware operation state lists managed by the firmware 3.
Read the operation status (E or D) of the specified PKG from 31 and
It is checked whether the notification and the read operation state match. If the check result is negative, the operation state analysis objects 43a and 43b and the redundant operation state notification object 15
To a higher-level management object (not shown) via

However, if the check results match, but the readout number does not reach the specified readout number, this is repeated until it reaches. Then, when the read number reaches the designated read number, it is sent to the corresponding operation state analysis objects 43a and 43b (FIG. 6).
-S4 to S6).

Then, the operation state analysis objects 43a, 43
3b logically analyzes whether or not the hardware unit is operable using the input operation state and the judgment formulas 1 and 2, and analyzes the analysis result via the redundant operation state notification object 15 to a higher level management (not shown). Notify the object (Fig. 6-S7-
S9).

Note that the judgment formula 1 [PKG1 and (PKG2 or PKG3
)], The analysis result of PKG2,
3 constitutes a redundant system, so even if PKG2 is removed, it can be operated with the mounted PKG3, and judgment formula 2 (PKG2 or
PKG3) can be operated by selecting PKG3 in PKG1. Therefore, in the analysis 1 and 2, an analysis result that a package (that is, a hardware unit) having a redundant configuration can be operated is obtained. (2) In the case of read processing The redundant operation state read object 16 corresponds to the operation state analysis object 43a or the operation state analysis object
Start 43b.

Therefore, in the same manner as above, the operation state data of the PKG is read from the hardware operation state list 31 using the operation state read object 42a or the operation state read object 42b, and the determination formula 1 or 2 is determined. Then, the analysis result is sent to the upper management object via the redundant operation state read object.

Here, in order to concretely realize the above-mentioned processing, as shown in FIG. 7, the processing flow of FIG.
Are respectively stored. In addition, the hardware operation status list is analyzed in the firmware 51, and the analysis is performed in a predetermined area of the RAM 55.
1, the operation state of the PKG required for analysis 2 is stored, and the CPU 52 is operated according to the processing flow of FIG.

In the conventional operation state determination method, when the operation state data is read from the hardware operation state list 31 in the firmware by the operation state reading objects 42a and 42b, the transmission for connecting the software unit 4 and the firmware 3 is performed. If correct data cannot be read due to a communication error or the like due to a road failure, there is a possibility that inconsistency may occur between the data in the hardware operation state list and the data stored in the operation state read object of the software unit. For each number of operation states, a list based on the attress of the PKG to be judged (functionally the same), or the same software object (the operation state analysis object 43a, 43b) are provided in the software section. This results in a very complicated process.

[0021]

Here, since the number of accesses between the software unit 4 and the firmware 3 increases via the transmission path in the above-described processing, the processing takes a long time, and a communication error occurs. Data mismatch may occur. Since the analysis depended on the hardware configuration, multiple similar objects were designed (for example,
However, there has been a problem that efficient analysis is not performed.

According to the present invention, a hardware operation status list is provided in an application section to reduce the amount of communication between a software section and firmware, thereby shortening the processing time and increasing the reliability of data, and at the same time, memory for each PKG. By referring to the redundant operation status judgment list created using the addresses of the areas (memory address 1 to memory address 3) and sharing the judgment processing, the software development efficiency is improved.

[0023]

According to the present invention, there is provided a redundant operation state in which a software section stores a hardware operation state list and an operation state determination formula created for each package using an address of a memory area. A determination list, a hardware operation state registration unit, and a common operation state determination unit are provided.

When the hardware operation status registering means receives the notification of the operation status of the built-in package directly from the hardware unit, the hardware operation status registration means stores the notification in the memory area of the corresponding address in the hardware operation status list. The received operation state is stored, and the notification is sent to the common operation state determination means to activate it.

Thus, the common operation state determination means processes the operation state determination expression corresponding to the notified package with reference to the hardware operation state list, and determines whether the operation of the redundant hardware unit is possible. Is determined, and the determination result is sent to the higher-order means.

[0026]

FIG. 1 is a diagram illustrating the principle of the present invention. The hardware operation status list 11 in FIG. 1 is provided in the firmware in the conventional example, but is provided in the application unit in the present invention.
When the a detects the notification of the change in the connection state of the package sent by the hardware unit 2, the a registers the changed connection state in this list immediately and updates the contents.

Further, the redundant system operation state determination list 12 includes a PG
In the table in which the operation state judgment formula created using the memory address for each K is registered, the hardware operation state list 11
The operation state (operable / inoperable) corresponding to the memory address is read out from the CPU, and the above determination formula is processed using the read operation state.

The processing of the judgment formula is executed by the common operation state judgment means 14a. Hereinafter, the operation of FIG. 1 will be described. (1) In the case of notification processing For example, the hardware operation status registration unit 13a that has received the PKG2 non-implementation notification registers “inoperable” in the memory address 2 of the hardware operation status list 11 and determines the common operation status. The means 14a shows the non-implementation notification. The common operation state determination unit 14a processes the operation state determination expression corresponding to PGK2 using the redundant operation state determination list 12. The contents of the processing correspond to the inoperability of PKG2,
It is determined whether the PKG (PKG3) to be switched between (PKG1) and SEL is operable.

The redundant operation status determination list 12 is obtained by specifying a memory address (indicated by memory addresses 1 to 3 in the figure) of the hardware operation status list 11 so that the operation status stored in the specified memory address is specified. See

That is, the redundant operation state determination list 12
It reads and confirms that PKG2 is in an inoperable state in the hardware operation state list 11. The common operation state determination unit 14a notifies the host device of the result of processing the operation state determination expression corresponding to PGK2 via the redundant operation state notification unit 15a. (2) In the case of read processing The common operation state determination means 14a is started using the redundant operation state read means 16a. The common operation state determination unit 14a operates in the same manner as in the above notification process, and responds from the redundant operation state reading unit 16a.

As described above, in the operation state determination method according to the present invention, the redundant operation state determination list 12 in which the operation state determination expressions corresponding to the PKG addresses are listed is provided, and the processing is performed in common by using the common operation state determination means. It was made to be.

This eliminates the necessity of means for each judgment formula as in the conventional example, thereby reducing the development scale and development cost and the amount of software change in response to a change in hardware configuration. The hardware operation status list 11 provided in the firmware is provided in the software unit.

Then, the hardware operation state registration means 13
a registers the operation state in the hardware operation state list 11 at the time of receiving the notification, and the redundant operation state judgment list 12 refers to the memory address of the hardware operation state list 11 and is stored in the specified memory address. Read the operation status.

As a result, the firmware can be reduced and the maintenance in the software section can be easily performed. Further, the communication between the software unit and the firmware can be reduced, and there is no fear of data inconsistency due to a communication error, thereby improving data reliability.

[0035]

FIG. 2 is an explanatory diagram of a process according to an embodiment of the present invention, FIG. 3 is a process flowchart of FIG. 2, and FIG. 4 is an example of a block diagram for executing the process of FIG.

Here, the same reference numerals indicate the same objects throughout the drawings. The device SEL object 1b, the hardware operation status registration object 13b, the device SEL common operation status determination object 14b, the device SEL operation status notification object 15b, and the device SEL operation status read object 16b
Corresponds to the software section 1a, the hardware operation state registration means 13a, the common operation state determination means 14a, the redundant operation state notification means 15a, and the redundant operation state read means 16a of FIG.

Hereinafter, FIGS. 2 to 4 will be described. The parts described in detail above will be schematically described, and the parts of the present invention will be described in detail. The hardware unit 2 shown in FIG. 2 has a selector SEL, outputs a clock signal from the selected board, and a redundant system 0,
It is assumed that the system is composed of a single-system CDIS panel, and this part is monitored by the device SEL object 1b. (1) In the case of notification Now, the device SEL object that has received the notification of non-mounting due to the removal of the 0-system CDIS board uses the hardware operation state registration object 13b to check the memory address 2 of the hardware operation state list 11 “Not operable” is registered in the area of the 0-system CDIS, and the non-mounting of the 0-system CDIS board is notified to the device SEL common operation state determination object 14b (FIG. 3).
-See S1 and S2).

Device SEL common operation state determination object 14
b is started by this notification, and the redundant system operation status judgment list 12
From the operation status judgment formula corresponding to the middle 0-system CDIS panel, (1) CR
Obtain the operation status of the EC board and (2) the operation status of the CDIS board.

For (1) and (2), by referring to the data registered in the memory addresses 1 to 3 of the hardware operation state list 11, (1) is "operable", and (2) is also
It is possible to obtain a judgment that "operation is possible" (Fig. 3-S3
To S5).

For example, assuming that the operable state is the “H” level and the inoperable state is the “L” level, equation (1) becomes Hand (L or H) → H, equation (2) becomes L or H → H, Both can be operated. Now, the device SEL common operation state determination object 14b
The determination results (1) and (2) obtained in (1) are sent from the device SEL operation status notification object 15b to the work station 17 managed by the maintenance person to notify the determination of the operability (see FIG. 3-S6). ). (2) In the case of reading When a maintenance person issues a read / read request for the operation status of the PKG via the workstation 17, the device SEL object 1b is set to the device SEL operation status read object 16b.
Via the device SEL common operation state conversion object 14b
Start

Therefore, the device SEL common operation state conversion object 14b activates the redundant operation state judgment list, and
For example, the operation status of CREC (1) and CD (2) of system 0 CDIS
After reading the ISK operation status, a response is returned to the fork station 17 via the device SEL operation status read object 16b.

Here, in order to specifically realize the above processing, as shown in FIG. 4, the processing flow of FIG. 3 is stored in the program ROM 62, and the hardware operation state list 11 and the redundant system Each of the operation state determination lists 12 is stored. Then, the CPU 61 may be operated according to the processing flow of FIG.

That is, according to the present invention, the access of the software unit to the hardware unit and the firmware is reduced, so that when the operation state of the hardware unit is collected, the processing time for the notification process by removing the package and the read process from the maintenance person is taken. It greatly contributes to shortening of time.

Also, by reducing access, there is almost no discrepancy between the state of the hardware unit due to a communication error and the state managed by the software unit, which contributes to the high reliability of data notified to the maintenance person. large.

[0045]

As described in detail above, according to the present invention, the processing time can be shortened, the data relating to the operation state can be made highly reliable, and the software development efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an explanatory diagram of a process according to an embodiment of the present invention.

FIG. 3 is a processing flowchart of FIG. 2;

FIG. 4 is an example of a block diagram for executing the processing of FIG. 2;

FIG. 5 is an explanatory diagram of processing in a conventional example.

FIG. 6 is a processing flowchart of FIG. 5;

FIG. 7 is an example of a block diagram for executing the processing of FIG. 5;

[Explanation of symbols]

 1a Software part 2 Hardware part 11 Hardware operation state list 12 Redundant operation state judgment list 13a Hardware operation state registration means 14a Common operation state judgment means 15a Redundant operation state notification means 16a Redundant operation state readout means 17 Workstation

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04L 29/14 H04L 12/28

Claims (1)

(57) [Claims] A system having a hardware operation state list stored in a memory area at an address corresponding to an operation state of a redundant configuration of a hardware unit and a software unit having a switching unit mounting package and a switching target package. In the software unit, the hardware operation status list, a redundant system operation status determination list storing an operation status determination formula created for each package using the address of the memory area, and a hardware operation status Registration means,
The hardware operation status registration unit is provided with a common operation status determination unit. When the hardware operation status registration unit receives a notification about the operation status of the built-in package directly from the hardware unit, the hardware operation status registration unit determines the corresponding address in the hardware operation status list. The received operation status is stored in the memory area, and the notification is sent to the common operation status determination unit to be activated, and the common operation status determination unit refers to the hardware operation status list to execute the operation. An operation state determination formula corresponding to the notified package is processed, and it is determined whether or not the operation of the hardware unit of the redundant configuration is possible, and the determination result is transmitted to a higher-order means. Operation state determination method.