JPH1013494A - Transmission device and its restoration system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the time of switching from an abnormal line to a standby line and a restarting-up time at abnormal line restoration time by storing operation data of an in-operation line and the standby line in a nonvolatile memory of a firmware part. SOLUTION: A hardware part 18 comprises a plurality of (1-m) hardware packages for each line and has a plurality of in-operation lines A-M and the standby line N which can be switched to any in-operation line. The firmware part 16 sets data on the hardware part 18, decides a fault of each hardware package, and performs switching between an in-operation line and the standby line under the control of an application part 12. Further, a nonvolatile storage part 22 is provided here and stored with the firmware part 16 itself and operation data (transmission rate of line, threshold value for abnormality decision, history information on each packet, etc.) by the lines managed by the firmware part 16 according to the order of higher necessity and the firmware is speedily started up when the firmware part 16 recovers from abnormality.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission apparatus and a recovery method therefor, and more particularly to a transmission apparatus having a redundant configuration, recovery when an abnormality occurs in a line of the transmission apparatus, and a failure in an application unit or a monitoring control system in combination with the transmission apparatus. The present invention relates to a recovery processing method when an error occurs.

2. Description of the Related Art In response to recent demands for high-speed and diversified information transmission, some type of anomaly or device-related abnormality has occurred in a remotely controlled transmission device, and information transmission has been stopped. Occasionally, there is a demand for a more diversified restoration method that further shortens the time required for restoration and assumes a case where an abnormality occurs in a plurality of lines. For this reason,
A transmission device having a redundant configuration having a spare line operated in place of the working line when an abnormality occurs in the working line is provided, but the data of the working line before switching to the spare line is transmitted to the monitoring control system or the transmission system. Downloading from the database in the apparatus consumes a great deal of time. Therefore, it is necessary to speed up the data setting to the spare line. Also, if an error occurs continuously on the line,
It is necessary to make this protection line correspond immediately.

[0003]

2. Description of the Related Art In a conventional transmission device, when a line in which a communication error has occurred is restored, the application section resets all data relating to the line from a database configured on a hard disk or the like in the transmission device, or , The maintainer was re-downloading from a remote supervisory control system.

[0004]

Therefore, there has been a problem that it takes time to switch from the line in which the abnormality has occurred to the protection line, or to take time to restart when the abnormal line is restored. For this reason, it takes a long time to transfer because a large amount of data is reset to the hardware, and even if an abnormality occurs in another line (for example, B) while one line (for example, A) is restored, The protection line is operated in place of the other line (B) after the download to the previously restored line (A) is completed. Also, if an error occurs on the application side (including the monitoring control system) during data transfer, even if the application side recovers, it will not be possible to know how much data has been transferred, eliminating errors in data with the hardware. Therefore, all data was downloaded again.

[0005] The present invention has been made in view of the above points,
It is an object of the present invention to provide a transmission device and a recovery method for shortening the recovery time when recovering from a line error and recovering from an error in a transmission device or an error in a higher system.

[0006]

According to a first aspect of the present invention, there is provided a hardware unit including a plurality of operation lines and a backup line, and a firmware unit for setting data in the hardware package. A transmission unit having an application unit for controlling the firmware unit according to an instruction from a host system, the firmware unit including a nonvolatile storage unit for storing operation data of each operation line and a protection line.

[0007] Thus, when an abnormality occurs in the host system or the application unit, the operation can be performed without interrupting the line by using the operation data in the nonvolatile storage unit. According to a second aspect of the present invention, in the transmission apparatus according to the first aspect,
When storing the operation data of each operation line and the backup circuit in the non-volatile storage unit, the firmware unit stores the data in the order of higher necessity for the operation of the line.

For this reason, when the usable capacity of the nonvolatile storage unit is limited, it is possible to reliably store data highly necessary for line operation in the nonvolatile storage unit. According to a third aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, when the abnormality of the firmware unit is restored, operation data is read from a hardware package of the hardware unit and the nonvolatile data is read out. Set in the storage unit.

Thus, the latest operation data is stored in the non-volatile storage unit when the firmware unit recovers from an abnormality.
According to a fourth aspect of the present invention, in the recovery method for recovering an abnormality of the transmission apparatus according to the first aspect, when the operation is switched to the protection line due to an abnormality in the operation line, the non-volatile storage unit operates when the abnormality occurs. The operation data of the line is set in the hardware package of the backup line.

This eliminates the need to download operation data from the host system or the application unit to the protection line when switching from the operation line to the protection line, thereby reducing the time required for the line switching. According to a fifth aspect of the present invention, in the recovery method for recovering an abnormality of the transmission device according to the first aspect, when operation data is transferred from the upper system, the transferred operation data and the nonvolatile storage unit are transferred. Is set in the hardware package of the hardware unit.

Therefore, even if a large amount of operation data is downloaded from the host system, only the difference data is set in the hardware package, and the time required for setting can be reduced. According to a sixth aspect of the present invention, in the restoration method for restoring an abnormality of the transmission apparatus according to the first aspect, when the operation line is switched to a protection line for operation, there is transfer of operation data from the upper system. Then, the operation data of each of the operation line and the backup line in the nonvolatile storage unit is updated with the transferred operation data.

For this reason, when the working line is recovered from the abnormality, the contents of the non-volatile storage unit are in an operable state, and when an abnormality continuously occurs in another working line, the spare line is used immediately. It is possible to do. According to a seventh aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, when the operation line is switched to a protection line for operation, operation data is transferred from the upper system. Is set in the hardware package of the protection line using the transferred operation data.

Therefore, it is not necessary for the application unit to provide a processing function for the protection line when switching the line, and the software structure of the application unit can be simplified. According to an eighth aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, the operation data read from the hardware package is compared with the corresponding operation data in the non-volatile storage unit to be different. Is notified to the host system.

Therefore, when the operation data changes due to the default data of the hardware package or the change of the main signal level from the opposite device, the amount of data downloaded from the upper system can be minimized. According to a ninth aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, when a hardware package of the hardware unit is exchanged for restoration of a line abnormality, the exchanged hardware package is used. The operation data read from the non-volatile storage unit is compared with the corresponding operation data in the nonvolatile storage unit, and a different part is notified to the upper system.

Therefore, when the hardware package is replaced, the amount of data downloaded from the host system can be minimized. According to a tenth aspect of the present invention, in the transmission device restoring method according to the third aspect, a hardware package of the hardware unit which requires setting of operation data at the time of abnormality restoration of the firmware unit is notified to the upper system.

Therefore, the amount of data downloaded from the host system when the transmission device is restarted can be minimized.

[0017]

FIG. 1 is a block diagram showing an embodiment of a transmission apparatus according to the present invention. In the figure, a transmission device 10 is more generally composed of an application unit 12, a database unit 14, a firmware unit 16, and a hardware unit 18, and is connected to a monitoring control system 20 that can remotely control the transmission device 10. ing.

The application unit 12 receives a message from the monitoring and control system 20 and, for example, sends data read from the database unit 14 or data received from the monitoring and control system 20 according to the instruction of the message in the hardware unit 18. It performs control such as setting in the package. The database unit 14 stores, for example, data in the transmission device 10 managed by the application unit 12 in a hard disk device or the like.

The firmware section 16 is a package on which a CPU is mounted. The firmware section 16 performs data setting of the hardware section 18 under the control of the application section 12, determines the failure of each hardware package in the hardware section 18, and checks the operation line. Switching to a protection line is performed. The firmware section 16 is provided with a nonvolatile storage section 22 in which the firmware section 16 itself and data managed by the firmware section 16 are stored.

The hardware section 18 is composed of a plurality (1 to m) of hardware packages per line, for example, a plurality of operation lines A to M, a protection line N which can be switched to any operation line, and have. FIG. 6 shows a management table provided in the nonvolatile storage unit 22. In the figure, the management table stores operation data for each of the operation lines A to M and the protection line N. Each operation data is stored side by side in descending order of priority for each line.

The operation data includes a transmission speed of the line, a threshold value for judging an abnormality, an identification number of the hardware package, history information, and the like. The priority such as a transmission speed necessary for operating the line is high. The history information of a hardware package which is not required to operate the software package has a low priority.

FIG. 2 shows a flowchart of an initial startup routine executed by the firmware unit 16. This routine is stored in the nonvolatile storage unit 22, and is executed to start up the firmware when the firmware unit 16 recovers from an abnormality. In the figure, in step S10, it is determined whether all of the working lines A to M are normal. The hardware package of each of the lines A to N of the hardware unit 18 includes a detection circuit for determining whether the line is normal or abnormal. In step S10, whether or not the line is normal is determined based on a signal from the detection circuit of each line. doing. If the protection line N has been switched to the working line, the line N is also determined as the working line.

Here, if any of the lines A to M is abnormal, after activating the recovery monitoring routine in step S12,
In step S14, the constant monitoring routine is started, and the process ends. On the other hand, if all of the operation lines A to M are normal in step S10, the process proceeds to step S16 to determine whether any hardware package of the operation lines A to M has been replaced. It should be noted that each hardware package of the hardware section 18 is provided with a status bit indicating whether or not it has been replaced. Here, if there is a replaced hardware package, step S1
At 8, the application unit 12 is notified that resetting is necessary. Then, in step S14, the constant monitoring routine is started, and the process ends.

If there is no exchange of the hardware package in step S16, the process proceeds to step S20, in which the operation data is read from all the hardware packages of the operation lines A to M of the hardware unit 18, and the nonvolatile data in the firmware unit 22 is read in step S22. It is stored in the management table of the sex storage unit 22. Thereafter, in step S24, a notification to the effect that resetting is unnecessary is sent to the application unit 12. Then, in step S14, the constant monitoring routine is started, and the process ends.

As described above, if the hardware package is not replaced at the time of restoration from the firmware down, data is read out from the operating lines A to M and the nonvolatile storage unit 2 is read out.
2, the transmission device 10 can be used even when an abnormality occurs in the higher-level application unit 12 or the supervisory control system.
Can be operated without stopping the operation.

FIG. 3 shows a flowchart of a main processing routine executed by the firmware unit 16. This routine is stored in the non-volatile storage unit 22, and is executed by receiving transmission data from the application unit 12. In the figure, in step S30, the supplied transmission data is analyzed. Next, in step S32, it is checked what priority the transmission data has on the line where the transmission data is set, which is known from the analysis result.

Next, in step S34, it is determined whether or not there is a difference between the setting data which is a data portion set in the line hardware package in the transmission data and the operation data currently set in the line hardware package. Is determined. If there is no difference, the process ends.

On the other hand, if there is a difference, the process proceeds to step S36, where it is determined whether or not the switching information between the working line and the protection line is held. If there is no switching information, step S3
Proceeding to 8, it is determined whether or not all operating lines are normal.
If the operation line is normal, only the difference from the operation data in the setting data is set to the specified operation line in step S40. Thereafter, the operation data of the operation line is stored and managed in the non-volatile storage unit 22 in order of priority, and the processing is terminated.

If there is an abnormality in the operation line in step S38, the operation proceeds to step S44, where the operation data of the operation line in which the abnormality has occurred is read out from the nonvolatile storage unit 22 and set in the hardware package of the protection line N. Next, in step S46, the operation data of the operation line in which the abnormality has occurred on the management table in the nonvolatile storage unit 22 is copied to the area of the protection line (on the management table) and managed by both sides. Further, in step S48, the recovery monitoring routine is started, and the process ends.

On the other hand, if the switching information is held in step S36, the flow advances to step S50 to set the setting data supplied from the application unit 12 to the hardware package of the protection line N. Next, in step S52, the setting data is stored in the respective areas of the working line and the protection line before switching on the management table in the nonvolatile storage unit 22, managed by both, and the process ends.

FIG. 4 shows a flowchart of a recovery monitoring routine executed by the firmware unit 16. In the figure, in step S60, it is determined whether or not the abnormal line has been restored,
This is repeated until restoration is completed. When the recovery is detected, the process proceeds to step S62, where the operation data of the line N, which was originally a protection line and was switched to the operation line when an abnormality occurred, is restored on the management table of the nonvolatile storage unit 22 by the hardware unit 18. Set to the hardware package of the line that was set.

Next, in step S64, it is determined whether or not the hardware package of the restored line has been replaced. If there is a replaced hardware package, the information about the package is transmitted to the application unit 12 in step S66. A notification to the effect that setting is necessary is given, and the process ends.

FIG. 5 shows a flowchart of the constant monitoring routine. In the figure, in step S70, the hardware unit 1
The polling of all the circuits A to N of 8 is performed to monitor the status of the hardware packages of all the circuits A to N. Next, in step S72, it is determined whether all hardware packages are normal and mounted, and if the hardware package is abnormal or not mounted, step S7 is performed.
Proceeding to 4, the operation line including the corresponding hardware package is switched to the protection line. Thereafter, the non-volatile storage unit 22 stores which of the working line and the protection line has been switched as switching information, and the process proceeds to step S70.

On the other hand, if all the hardware packages are normal and mounted, the flow advances to step S78 to determine whether there is a difference between the operation data of the operation line and the management table of the nonvolatile storage unit 22. Is determined, and if there is no difference, the process proceeds to step S70, but if there is a difference, the process proceeds to step S80. In step S80, the management table in the non-volatile storage unit 22 is updated with the operation data of the difference, and in step S82, the application unit 12 is notified that resetting is necessary, and the process proceeds to step S70.

Here, when an abnormality occurs in the firmware section 16 as shown in the sequence of FIG. 7 and thereafter the firmware section 16 is restored, the firmware section 16 reads the operation data from the operation line A by the initial start-up routine of FIG. S20), and store it in the management table of the nonvolatile storage unit 22 (Step S22). Therefore, it is possible to prevent the operation line from being stopped even when the upper-level application unit 12 and the monitoring control unit 20 are abnormal.

Next, as shown in FIG. 8, when an abnormality occurs in the operation line A, the firmware unit 16 switches from the operation line A to the protection line N by the constant monitoring routine of FIG. 5 (step S74). That is, E, F, K, L in FIG.
The switching is performed in the path of. In the conventional device, after the occurrence of an abnormality, the abnormality is notified to the monitoring control system, and the line is switched by the control of the monitoring control system (paths E, F, G, H, I, J, K, and L). , The switching takes a long time, but in this embodiment, the routes F, G, H,
High-speed line switching becomes possible by shortening the time corresponding to I and J.

After switching from the working line A to the protection line N, the data of the protection line N is set (copied) in the management table in the nonvolatile storage unit 22 in step S76. By the way, when the data stored in the management table for the operation line A is in the state shown in FIG.
2 is supplied to the data X in FIG. 10 by steps S32 and S42 of the main processing routine of FIG.
In the operation line A of the management table as shown in FIG.
The data A _k stored in the position corresponding to the priority i and having the lowest priority is shifted out.

Further, as shown in the sequence of FIG. 11, when there is a request for setting a plurality of data from the monitoring control system 20, the firmware unit 16 performs a difference check in step S34 of the main processing routine of FIG. Is set to the operation line A, and then the execution completion is notified to the monitoring control system 20. Since only the difference data is set to the operation line A in this way,
The number of data to be set can be reduced, and the setting time can be shortened.

As shown in the sequence of FIG. 12, when there is a data setting request for the operation line A from the monitoring control system 20 during operation on the protection line N due to the occurrence of an abnormality on the operation line A, the setting data X is The protection line N is set (step S50), and the areas of the operation line A and the protection line N in the management table are simultaneously updated (step S5).
2). FIGS. 13A and 13B show the state of the management table before and after the data X is set.

As a result, when the operation line A is restored, the operation data of the operation line A in the management table is set in the hardware package of the operation line A of the hardware unit 18 (step S62). Note that the same applies to the case where data Y to be set for the operation line B is supplied when the operation line B having an abnormality in the protection line N is operated.
(A) and (B) show the state of the management table before and after the data Y is set.

As described above, the upper application unit 1
When the data setting request is issued through the second line, the firmware unit 16 sets the data and updates the management table for the requested operation line and the protection line operating in place of the operation line. Database unit 1 without having to be aware of
4 can be simplified and the software of the application unit 12 can be simplified. Regarding the software of the application unit 12, for example, when the operation line A is switched to the protection line N, the control for resetting the data of the operation line A up to now to the protection line N or a request from the next monitoring control system is performed. Since the control of the operation line A is being switched, the control management of performing the control on the protection line N is not required, so that simplification is possible. Also,
Regarding the database unit 14, for example, when the working line A is switched to the protection line N, the data update for the protection line N in the database and the control for the protection line N in the database are being switched because the control for the protection line N is being switched. Control management for updating data is not required, and simplification is possible.

As shown in the sequence of FIG. 15, when an abnormality occurs in the operation line A, the hardware unit 1
When the hardware package #j is replaced with the new package #j 'on the working line A of FIG. 8, when the working line A is restored, the monitoring control system 20 is reset in the step S66 of the recovery monitoring routine of FIG. Notify the necessity. This allows the monitoring and control system 20 to know the hardware package that needs to be downloaded,
Only the minimum required data needs to be downloaded, and the download time can be reduced.

Further, when the operation data of the hardware package of the operation line A changes due to a factor other than the replacement of the hardware package, for example, a change in the main signal level from the opposite transmission device or an error, the sequence shown in FIG. As shown in (1), the firmware unit 16 notifies only the data (difference data) that needs to be reset to the monitoring control system 20 in steps S78 to S82 of the constant monitoring routine in FIG. For this reason, the download data amount is small and the download time can be reduced.

FIG. 17 shows a sequence when a hardware package is replaced in the firmware section 16 when an abnormality occurs. In this case, when the firmware unit 16 is restored, the monitor control system 20 is notified of the necessity of resetting (step S18 of the initial startup routine in FIG. 2). If the hardware package has not been replaced, a notification that no resetting is necessary is performed (step S24).

FIG. 18 shows a sequence when a line abnormality and an application abnormality occur in combination during download. In the figure, if a line abnormality occurs in the operation line A while data α is being downloaded from the application side, the setting is immediately made to the protection line N (step S74). Then, the data set for the backup line N is stored in the management table in the firmware unit 16 with the priority being increased from the data having the greatest influence on the main signal of the line, and the recovery of the abnormal line is performed by the routine shown in FIG. Monitor.
Thereafter, when a request for re-downloading the data α is made, the firmware section 16 sets the protection line N so that the application side is not made aware of the protection line N. Further, when the line abnormality is recovered, the data in the management table is set to the recovered operation line so that the backup line can immediately respond to the abnormality of the other lines. If an error occurs on the application side before the restoration, the firmware waits for the restoration and notifies the application side of the normal completion of the download. As a result, the difference between the information on the upper side and the information on the lower side after the application is restored is eliminated, and the necessity of re-downloading is eliminated. If redownloading is necessary due to replacement of a hardware package at the time of line restoration, a notification indicating that only the hardware package needs to be redownloaded is sent to other hardware packages. The download time is kept to a minimum by not re-downloading.

As described above, when a line abnormality occurs, the firmware section 16 smoothly sets data for switching between the operation line and the protection line, so that re-downloading from the application side is unnecessary or minimal. Can be stopped. Then, even when a line error occurs continuously or when an error with the application side is combined, the entire system can be smoothly restored. Also, all information on the protection line is stored in the firmware section 16.
In this case, the application does not need to recognize the protection line on the application side, which greatly contributes to simplification of the application software and improvement of performance.

[0047]

As described above, the first aspect of the present invention provides
A transmission including a hardware unit having a hardware package for each of a plurality of operation lines and a backup line, a firmware unit for setting data in the hardware package, and an application unit for controlling the firmware unit according to an instruction of a higher system. The device has a nonvolatile storage unit for storing operation data of each operation line and the protection line in the firmware unit.

Thus, when an abnormality occurs in the host system or the application unit, the operation can be performed without interrupting the line by using the operation data in the nonvolatile storage unit. According to a second aspect of the present invention, in the transmission apparatus according to the first aspect,
When storing the operation data of each operation line and backup line in the non-volatile storage unit, the firmware unit stores the data in the order of high necessity for line operation.

For this reason, when the usable capacity of the nonvolatile storage unit is limited, it is possible to reliably store data highly necessary for circuit operation in the nonvolatile storage unit. Claim 3
In the recovery method for recovering an abnormality of the transmission device according to claim 1, in the recovery method, when an abnormality of the firmware unit is recovered, operation data is read from a hardware package of the hardware unit and stored in the nonvolatile storage unit. Set.

As a result, meticulous operation data is stored in the nonvolatile storage unit when the firmware unit recovers from an abnormality.
According to a fourth aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, when the standby line is switched due to an abnormality in an operation line, the occurrence of the abnormality in the nonvolatile storage unit occurs. Is set in the hardware package of the backup line.

Thus, when the line is switched from the operation line to the protection line, it is not necessary to download the operation data from the host system or the application unit to the protection line, and the time required for the line switching can be reduced. Also,
According to a fifth aspect of the present invention, in the recovery method for recovering an abnormality of the transmission device according to the first aspect, when operation data is transferred from the upper system, the transferred operation data and the nonvolatile storage unit are transferred. Is set in the hardware package of the hardware unit.

For this reason, even if a large amount of operation data is downloaded from the host system, only the difference data is set in the hardware package, and the time required for setting can be reduced. According to a sixth aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, when the operation line is switched to a protection line for operation, transfer of operation data from the upper system is performed. When there is, the operation data of each of the operation line and the protection line in the nonvolatile storage unit is updated with the transferred operation data.

For this reason, when the working line is recovered from the abnormality, the contents of the non-volatile storage unit are in an operable state, and when an abnormality continuously occurs in another working line, the spare line is used immediately. It is possible to do. Claim 7
In the restoration method for restoring the abnormality of the transmission device according to claim 1, when the operation line is switched to a protection line and operated, when there is a transfer of operation data from the upper system, The setting is made in the hardware package of the protection line by using the transferred operation data.

For this reason, there is no need to provide a processing function for the protection line when the line is switched in the application unit, and the software structure of the application unit can be simplified. According to an eighth aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, the operation data read from the hardware package is compared with the corresponding operation data in the non-volatile storage unit to be different. Is notified to the host system.

For this reason, when the operation data changes due to a change in the default data of the hardware package or a change in the main signal level from the opposite device, the amount of data downloaded from the system can be minimized. According to a ninth aspect of the present invention, in the restoration method for restoring an abnormality of the transmission device according to the first aspect, when the hardware package of the hardware unit is exchanged for restoration of a circuit abnormality, the exchanged hardware package is used. The operation data read from the non-volatile storage unit is compared with the corresponding operation data in the nonvolatile storage unit, and a different part is notified to the upper system.

Therefore, when the hardware package is replaced, the amount of data downloaded from the host system can be minimized. According to a tenth aspect of the present invention, in the transmission device restoring method according to the third aspect, a hardware package of the hardware unit which requires setting of operation data at the time of abnormality restoration of the firmware unit is notified to the upper system.

Therefore, when the transmission device is restarted, the amount of data downloaded from the host system can be minimized.

[Brief description of the drawings]

FIG. 1 is a block diagram of a transmission device according to the present invention.

FIG. 2 is a flowchart of a processing routine according to the present invention.

FIG. 3 is a flowchart of a processing routine according to the present invention.

FIG. 4 is a flowchart of a processing routine according to the present invention.

FIG. 5 is a flowchart of a processing routine according to the present invention.

FIG. 6 is a diagram showing a management table.

FIG. 7 is a diagram showing a sequence of the method of the present invention.

FIG. 8 is a diagram showing a sequence of the method of the present invention.

FIG. 9 is a diagram showing a management table.

FIG. 10 is a diagram showing a management table.

FIG. 11 is a diagram showing a sequence of the method of the present invention.

FIG. 12 is a diagram showing a sequence of the method of the present invention.

FIG. 13 is a diagram showing a management table.

FIG. 14 is a diagram showing a management table.

FIG. 15 is a diagram showing a sequence of the method of the present invention.

FIG. 16 is a diagram showing a sequence of the method of the present invention.

FIG. 17 is a diagram showing a sequence of the method of the present invention.

FIG. 18 is a diagram showing a sequence of the method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Transmission apparatus 12 Application part 14 Database part 16 Firmware part 18 Hardware part 20 Non-volatile storage part 22 Monitoring control system

Claims (10)

[Claims] 1. A hardware unit having a plurality of operating lines and a spare line hardware package, a firmware unit for setting data in the hardware package, and an application for controlling the firmware unit in accordance with an instruction from a host system And a non-volatile storage unit for storing operation data of each operation line and the protection line in the firmware unit. 2. The transmission device according to claim 1, wherein the firmware unit stores, when storing the operation data of each operation line and the protection line in the nonvolatile storage unit, data that is highly necessary for operation of the line. A transmission device that stores data in order. 3. The recovery method according to claim 1, wherein operation data is read from a hardware package of the hardware unit and set in the nonvolatile storage unit when the abnormality of the firmware unit is recovered. A recovery method for a transmission device. 4. The recovery method according to claim 1, wherein when the operation line is switched to the protection line due to an abnormality in the operation line, the operation data of the operation line in the non-volatile storage unit where the abnormality has occurred. In the hardware package of the protection line. 5. The recovery method according to claim 1, wherein when the operation data is transferred from the upper system,
A method of restoring a transmission device, wherein difference data between the transferred operation data and data stored in the nonvolatile storage unit is set in a hardware package of the hardware unit. 6. The recovery method for recovering an abnormality of a transmission apparatus according to claim 1, wherein when the operation line is switched to a protection line and operated, transfer of operation data from the upper system is performed.
A recovery method for a transmission device, wherein operation data of each of the operation line and the protection line in the nonvolatile storage unit is updated with the transferred operation data. 7. The recovery method for recovering an abnormality of a transmission device according to claim 1, wherein, when the operation line is switched to a protection line and operated, when operation data is transferred from the upper system,
A restoration method for a transmission device, wherein the operation data is set in the hardware package of the protection line using the transferred operation data. 8. The recovery method according to claim 1, wherein operation data read from a hardware package is compared with corresponding operation data in the nonvolatile storage unit, and a different part is determined by the higher system. A recovery method for a transmission device, wherein the transmission method is notified. 9. The recovery method according to claim 1, wherein when the hardware package of the hardware unit is replaced for recovery of a circuit abnormality, the operation read from the replaced hardware package. A recovery method for a transmission device, wherein data is compared with corresponding operation data in the nonvolatile storage unit, and a different portion is notified to the upper system. 10. The transmission device restoration method according to claim 3, wherein a hardware package of the hardware unit that requires setting of operation data is notified to the host system when the firmware unit recovers from an abnormality. Transmission device recovery method.