JPH09238138A - Network management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently acquire data to be managed from a device to be managed by poling at a high speed. SOLUTION: A main signal system package 109 which is a device to be managed is provided with an in-package memory 111 in which the actual data to be managed of the device are periodically copied by means of a package data copying section incorporated in the package 109 and a communication management section 110 which makes access to the area of the memory within the extent designated from an agent 1 and informs the agent 1 of the result. The poling processing section 104 of the agent 1 collectively acquires data to be poled by informing each main signal system package 109 of the extent to be poled in each main signal system package 109 at every package 109 through a communication managing section 107 and copies the acquired data in a memory 102 incorporated in the agent 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network management device, and more specifically, to an agent as a management proxy device acting on behalf of network management, which is managed by a main signal system package or the like connected via a transmission line. The present invention relates to a network management device that performs management operations such as status acquisition and data setting for the device.

[0002]

2. Description of the Related Art In a network management system including a manager which is a management device, a main signal system package which is a managed device, and an agent which is a management proxy device between the manager and the main signal system package and which acts as a proxy for network management. When an agent performs a management operation (acquisition of status, setting of data, etc.) on a main signal system package, conventionally, an interface by commands as shown in FIG. 17 is used. For this reason, each main signal system package is provided with a mechanism such as a command interpreting unit, a data collection setting unit, and a response format generating unit.

When the management target data of each main signal system package is acquired from the agent by polling, a command specifying the logical name of the management target data is issued for each management target data of one main signal system package. It is sent to the main signal system package by polling.On the main signal system package side, the command interpretation unit interprets the command, the data collection setting unit collects the corresponding data from within the main signal system package, and the response format generation unit The operation of generating a response including the collected data and returning it to the agent was performed.

In addition to the polling, when the management target data of an arbitrary main signal system package is acquired from the agent at any time, a command specifying the logical name of the management target data is transmitted to the main signal system package, The same operation as that at the time of polling was performed on the signal system package side. Furthermore, when data is set from the agent to the managed data of any main signal system package at any time,
A command specifying the logical name of the management target data and the setting data is sent to the main signal system package, and on the main signal system package side, the command interpreter interprets the command and the data collection setting unit applies the corresponding managed data. The setting data is set in the, and the response format generation unit generates the response and returns it to the agent.

[0005]

In the above-mentioned conventional technique, only one piece of management target data can be acquired by one polling. Therefore, even when a large number of data to be managed is acquired from one main signal system package by polling, it is necessary to perform polling a number of times, and communication overhead reduces transfer efficiency.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to enable efficient and high-speed acquisition of data to be managed by polling from a managed device such as a main signal system package.

Similarly, in the above-mentioned conventional technique, only one piece of management target data can be acquired or set by one occasional access. Therefore, you can access a large number of managed data from any main signal system package at any time,
On the contrary, when data is set, it is necessary to access the data many times, and the communication efficiency lowers the transfer efficiency.

Therefore, another object of the present invention is to enable efficient and high-speed acquisition and data setting of data to be managed by occasional access from a managed device such as a main signal system package.

[0009]

According to the present invention, each managed device is provided in a network management system in which an agent as a management proxy device for performing network management and a plurality of managed devices are connected by a transmission line. , A packaged memory that holds a copy of the managed data of the self managed device. This in-package memory is managed data that is transferred from the managed device to the agent (for example, attribute data such as termination point information, status data such as operating status information, performance data such as error rate, alarms such as various failure information). Has a transfer area to store. Then, in each managed device, the current managed data in the managed device is transferred to the in-package memory so that the managed data held in the transfer area of the in-package memory becomes the latest copy. A package data transcription unit and a managed-device-side communication management unit that accesses an area of the in-package memory within a range designated by the agent and notifies the agent of the result are provided. Therefore, the agent can acquire the latest managed data by acquiring the contents of the in-package memory of each managed device at the time of polling. Therefore, the agent is notified of the range to be polled in the package memory to each managed device through the agent side communication management section and the agent side communication management section,
A polling processing unit that collectively acquires polling target data returned from the communication management unit of each managed device is provided.

The managed data stored in the transfer area of the in-package memory is compared with the existing value in the in-agent memory which is acquired by polling and is directly transferred to the in-agent memory in the first group. The second group is grouped into a third group which is acquired by polling and is subjected to intersection determination with a predetermined threshold, and is also stored in a continuous area of the package memory. Then, by specifying the access range, the management target data of all groups are collectively acquired,
The data of each group is processed sequentially. In order to process the data of each group, it is necessary to manage the address of the memory in the package where each group is stored and the address of the memory in the agent which is the transfer destination, and therefore the package of each managed device is managed. The address of the area in the internal memory where the management target data of the first group, the second group and the third group are stored, and the agent to which the management target data of the first group, the second group and the third group should be transferred A package information storage unit is provided that holds the address of the memory area in association with it. The polling processing unit determines, for each managed device through the agent-side communication management unit, the range of the area in which the management target data of the first group, the second group, and the third group of the package memory is stored in the package information. The management target data of the first group, the second group, and the third group are obtained collectively from the storage unit by notifying the managed device. Then, the management target data of the first group is transferred to the corresponding area of the in-agent memory as it is, and the management target data of the second group is compared with the previously acquired data stored in the agent memory, and when the data does not match. The event notification unit is posted to the in-agent memory and notified to the event notification unit, and the managed data of the third group is posted to the in-agent memory and compared with a predetermined threshold value, and the event notification unit is detected when a threshold crossing is detected. To notify.

If the data to be managed which is urgent to be notified, such as alarm data in the transfer area of the package memory of the managed device, is transferred after waiting for polling, the notification will be delayed. Therefore, the management target data that requires urgent notification is grouped as the data of the fourth group, and the managed device-side communication management unit changes the fourth target data after the change to the fourth group after the change. Notify the agent of the group's managed data and its package memory address by asynchronous notification. The agent has an asynchronous event processing unit, and when the managed device and the in-package memory address of the fourth group are notified from the managed device via the agent-side communication management unit by asynchronous notification, the management target of the fourth group is managed. The data is transferred to the address of the memory in the agent corresponding to the memory address in the package, and the event notification unit is notified.

The packaged memory of each managed device has a non-transfer area in addition to the transfer area as described above. In the non-transfer area, management target data (for example, various protection information, initialization information, etc.) transferred from the agent to the managed device is stored. Then, in order to reflect the contents of the non-transfer area to the actual management target data, the memory transfer unit that transfers the management target data held in the non-transfer area to the current management target data of the self-management apparatus is provided for each target. Provided in the management device. Therefore, the data can be set from the agent to the managed device by setting the data in the non-transfer area of the in-package memory. Since the contents of the non-transfer area are not transcribed in the agent memory, the agent memory does not have a transcribing area corresponding to the non-transfer area. Instead, the address of the virtual in-agent memory corresponding to the address of the non-transfer area is set, and the correspondence relationship between the two is managed in the package information storage unit.

The setting of the management target data from the agent to the non-transfer area of the in-package memory is carried out by the access processing section at any time. The occasional access processing unit may acquire the contents of the non-transfer area or the contents of the transfer area. That is, the access processing unit notifies the managed device of the range to be accessed through the agent-side communication management unit when acquiring data from the transfer area and the non-transfer area of the packaged memory of the managed device. When collectively acquiring the data within the range and setting the data in the non-transfer area of the memory in the package, notify the managed device of the range to be accessed and the data to be set through the agent-side communication management unit. Data is collectively set within the range.

It is convenient for a data acquisition request source or a data setting request source that requests data acquisition and setting by occasional access to specify the in-agent memory address without being aware of the in-package memory address. Therefore, in the package information storage unit, the relationship between the address of the transfer area in the in-package memory of each managed device and the address of the corresponding area of the in-agent memory, and the in-package memory of each of the managed devices. It holds the relationship between the address of the non-transfer area and the corresponding virtual memory address in the agent, and the access processing unit at any time uses the managed device and the memory in the agent that are data acquisition targets from the data acquisition request source. When a range is entered, the target range of the in-agent memory is converted into the target range of the corresponding in-package memory and the relevant managed device is notified, and the data in the range is collectively acquired and the data setting is performed. From the request source, the managed device for which data is to be set, the target range of the memory in the agent, and When the constant data is input, the target range of the memory in the agent is converted into the target range of the corresponding memory in the package and the corresponding managed device is notified together with the setting data, and the setting data is collectively included in the range. Set.

As described above, the agent side needs to convert the in-package memory address of the managed device into the in-agent memory address and vice versa. Therefore, referring to the contents of the package information storage section, the managed device is managed. An address conversion unit for converting the memory address in the package of the device to the memory address in the agent and vice versa is provided, and the polling processing unit, the asynchronous event processing unit, and the occasional access processing unit use this address conversion unit. And get the required address.

Further, although a logical communication address is used for communication between the agent and the managed device, in the case of a newly added managed device, the physical communication address and the managed device number are used. The corresponding logical communication address cannot be managed. Therefore, in the present invention, the communication management unit of the managed device notifies the agent-side communication management unit of the type and number of the self-managed device and the physical communication address when the self-managed device is initialized. Department is
Assign a logical communication address. This numbering is performed from within the logical communication address group related to the notified type of the managed device. The numbered logical communication address is notified to the managed device side communication management section, and the correspondence between the numbered logical communication address and the number of the managed device is held on the agent side, which is necessary for communication. It is used to associate the managed device number with the logical communication address.

Similarly, in the case of a newly added managed device or the like, the memory arrangement of the memory in the package is not managed by the agent side, so that polling processing, occasional access processing, and asynchronous notification are hindered. Occurs. Therefore, in the present invention, the communication management unit of the managed device notifies the agent of the package information including the memory allocation information of the management target data in the package memory of the self-managed device at the time of initialization of the self-managed device, The communication management unit of the agent generates new management information corresponding to the managed device in the package information storage unit based on the package information.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, in an embodiment of a network management device of the present invention, an agent 1 and a plurality of main signal system packages 109 which are managed devices are provided with a transmission line 112.
Are connected to each other through. Here, the agent 1 functions as a management proxy device that acts as a proxy for OSI network management between a manager, which is a management device (not shown), and the main signal system package 109.

Each main signal system package 109 is an LS that actually controls communication processing in a switchboard and various transmission devices.
A board on which I or the like is mounted is inserted into a slot of the housing of the device and is connected to a board forming the agent 1 by a transmission line 112 in the device. Each of these main signal system packages 109 includes a package memory 111 for holding a copy of management target data and a package memory 11 as a part related to network management.
1 and a transmission path 112, and includes a communication management unit 110 that performs processing such as accessing the in-package memory 111 and transferring management target data to the agent 1. The in-package memory 111 includes a transfer area 211 for storing management target data transferred from the main signal system package 109 to the agent 1, and a non-transfer area 205 for storing management target data transferred from the agent 1 on the contrary. Have. As will be described later, in each main signal system package 109, the latest management target data in the self-managed device is transferred to the transfer area 211 of the package memory 111, and the non-transfer area 205 of the package memory 111 is transferred. The latest management target data transferred from the agent 1 is transferred to the current management target data of the self management apparatus. Those accessing the in-package memory 111 perform exclusive control on the memory and obtain the exclusive right before accessing.

On the other hand, the agent 1 is the agent internal memory 1 to which the contents of the transfer area 211 of the internal memory 111 of each main signal system package 109 are transferred.
02 and the communication management unit 107 connected to the transmission line 112.
And a polling processing unit 104 that autonomously executes polling processing for the main signal system package 109, and an occasional access processing unit 101 that performs occasional access processing for the main signal system package 109 according to a command from the outside and returns the result to the outside. And the main signal system package 109
Asynchronous event processing unit 106 for processing asynchronous notification from
And the polling processing unit 104 and the asynchronous event processing unit 1
The event notification unit 10 that converts the event notified from 06 into an agent command and notifies the event reception unit (not shown)
5, the package information storage unit 103 that holds various management information necessary for polling processing and occasional access processing for the main signal system package 109, the polling processing unit 104, the occasional access processing unit 101, and the asynchronous event processing unit 106. The address conversion unit 108 is used. The memory 10 in the agent
Those who access 2 access the memory by performing exclusive control on the memory and obtaining the exclusive right.

FIG. 2A shows the main signal system package 109.
3 is a diagram showing an example of data arrangement of a package memory 111 in FIG. In all the main signal system packages 109, copies of the data to be managed are all stored in the package memory 111. The in-package memory 111 has the transfer area 211 and the non-transfer area 205 as described above. The management target data is grouped by those having the same communication method with the agent 1 and the same processing in the agent 1, and each group is continuously arranged in the package memory 111.

In this embodiment, the data to be managed is the following 5
It is divided into two groups. The first group is a group of managed data acquired by polling from the agent 1 and transferred directly to the in-agent memory 102. In FIG. 2A, the data stored in the area 201 of the transfer area 211 is Belong to this group. The second group is a group of management target data that is acquired by polling from the agent 1 and is compared with the existing value of the transfer destination of the in-agent memory 102. In FIG. The stored data belongs to this group. The third group is a group of managed data that is acquired by polling from the agent 1 and is subjected to intersection determination with a preset threshold value, and is stored in the area 203 of the transfer area 211 in FIG. Data belongs to this group. The fourth group is a group of managed data that is asynchronously transferred from the main signal package 109 to the agent 1 when the value changes, and is stored in the area 204 in the transfer area 211 in FIG. Existing data belongs to this group. Fifth group This is a group of managed data that is accessed by the agent 1 but does not have a storage area corresponding to the in-agent memory 102, and the data stored in the area 205 in FIG. 2A belongs to this group. .

Areas 201 to 201 corresponding to each group
In 205, the attributes of the same managed object instance are arranged so as to be continuous. That is, there are managed object instances A, B, C, D, and attributes A1, A2, A3, A belonging to the managed object instance A.
2, A5, A6, A7, A8, A9, of which the attributes A1 and A2 are data belonging to the first group, in the area 201, reference numerals 206 and 20 in FIG.
As shown in 7, A1 and A2 are continuously arranged. Similarly, when the data belonging to the first group among the attributes belonging to the managed object instance B are B1, B2, and B3, they are continuously arranged on the area 201 as indicated by reference numerals 208, 209, and 210 in FIG. To do.

FIG. 15 shows a specific example of management target data stored in the package memory 111. In this example, there are the following nine types of management target data. Attribute information 1501 different for each main signal system package.
For example, end point information or the like. Status information 1502 different for each main signal system package. For example, it is operational status information. Performance information 1503 different for each main signal system package. For example, an error rate or the like. Alarm 1504 common to each main signal system package. For example, it is failure information of the main signal system memory. Different alarm 1505 for each main signal package. For example, it is communication failure information. Attribute information 1506 common to each main signal system package. For example, it is package configuration information. Control information 1507 common to each main signal system package. For example, package protection information. Control information 1508 different for each main signal system package. For example, it is line protection information. The provisioning information 1509 different for each main signal system package. For example, it is initialization information of the main signal system package.

Of the data shown in FIG. 15, attribute information 15
01 is classified into information acquired by polling by the agent 1 and transferred to the in-agent memory 102 as it is, and status information 1502 is classified into information acquired by polling by the agent and compared with existing values existing in the in-agent memory 102. , Performance information 15
03 is categorized as information which is acquired by polling by the agent 1 and is compared with a predetermined threshold value. Alarms 1504 and 1505 are categorized as information which is notified from the main signal system package 109 as an asynchronous notification. Attribute information 1506, control The information 1507 and 1508 and the provisioning information 1509 are classified into information that is not transferred to the agent 1 unless there is an access request from the agent 1. That is, 1501, 1502, 1503, 1
The area where the data of 504 and 1505 is stored becomes the transcription area 211 that is transferred to the in-agent memory 102, and the area where the data of 1506, 1507, 1508 and 1509 is stored is a non-transfer area that is not transferred to the in-agent memory 102. Become.

FIG. 2B shows the memory 102 in the agent.
Shows the correspondence between the package memory 111 and As shown in the figure, on the in-agent memory 102, areas for transferring the data in the transfer area 211 of each in-package memory 111 are continuously taken. In the agent 1, a virtual in-agent memory address space ON is set, and on this address space ON, areas corresponding to the non-transcribed area 205 of each in-package memory 111 are taken continuously.

Next, the package information storage unit 103 in FIG. 1 stores the package management table 301 as shown in FIG.
, Package address table 308, and threshold information table 316
And a state length table 321.

The package management table 301 is a table that is the root of the tables included in the package information storage unit 103.
There is one in the package information storage unit 103. One line of the package management table 301 corresponds to one of the main signal system packages 109 managed by the agent 1, and one line is composed of the following six elements. Number of main signal system package 109 (slot) 302 Address of start address of transfer area 211 of in-package memory 111 Address of in-agent memory 102 (MIBad) 303 Corresponding to start address of non-transfer area 205 of in-package memory 111 Virtual address (ONad) 304 in the in-agent memory 102 to be polled Polling permission / inhibition flag (OnOff) 30 indicating whether or not the main signal system package is a polling target
5 Pointer to threshold information table 316 (THptr) 306 Pointer to corresponding line of package address table 308 (POLptr) 307

In the package address table 308, one row corresponds to the same type of main signal system package, and each row is composed of the following seven elements. Start address (SegNs) 309 of the area 201 of the in-package memory 111 Start address (SegSc) 310 of the area 202 of the in-package memory 111 Start address (SegTh) 311 of the area 203 of the in-package memory 111 311 Start address (SegEv) 312 Start address (SegOn) 313 of non-transfer area 205 of in-package memory 111 End address (SegE) of in-package memory 111
nd) 314 Pointer to the state length table 321 (STptr) 315 Of these, SegNs 309 is the package memory 11
Of the information stored in 1, the memory 10 in the agent
It also has a role of pointing to the start address of the transfer area 211, which is the area transcribed to 2.

The threshold value information table 316 is a table for storing threshold value information for the data in the area 203 targeted for threshold value inspection of the in-package memory 111, and is attached to each main signal system package 109 one by one. In the threshold information table 316, one row is made up of the following four items, and one row corresponds to one management target data that is a threshold comparison target. Data length (length) 317 Upper threshold value (HighT) 318 Lower threshold value (LowT) 319 Size relationship with data threshold value (state) 320

Here, the state 320 indicates the previous magnitude relation, and there are two upper and lower thresholds because the threshold has hysteresis. That is, state320
If the previous magnitude relationship indicated by is "up", which indicates that it is above the threshold value, the lower threshold value 3 is determined in this threshold value determination.
19 is used, and conversely, when the previous magnitude relationship is “lower” indicating that it is lower than the threshold value, the upper threshold value 318 is used in the present threshold value determination.

The state length table 321 is a table for storing the length information for the data in the area 202 to be the state change inspection target of the in-package memory 111, and for the same type of main signal system package. Belongs to one. In the state length table 321, the data length of the management target data for which the state change is detected is stored in order from the first management target data, and the end is “0” indicating that.

Next, the address conversion unit 108 in FIG.
Refers to the package management table 301 and the package address table 308 in the package information storage unit 103,
The following two types of address conversion are performed. (1) The main signal system package number and the address of the in-package memory 111 are converted into the address of the in-agent memory 102. (2) On the contrary, the address in the agent memory 102 is converted into the main signal system package number and the address in the package memory 111. The operation of the address conversion unit 108 will be described below in each case.

First, the conversion from the main signal system package number and the address of the in-package memory 111 to the address of the in-agent memory 102 will be described along the flow of the flowchart of FIG. 4 showing an example of the conversion procedure.

When the address conversion request source inputs the main signal system package number i and the in-package memory address β from the address conversion request source (401), the address conversion unit 108 looks at the column of the salt 302 of the package management table 301 to see the main signal system package. The line with the number i is searched for, and the corresponding line of the package address table 308 is accessed through the pointer POLptr307 described in that line, and the SegOn31 of that line is accessed.
The start address O of the non-transfer area 205 of the corresponding packaged memory 111 is obtained from the column 3 (402). next,
This O is compared with the input in-package memory address β to determine whether β is an address in the transfer area 211 or an address in the non-transfer area 205 (403).

If β <O, the input package memory address β is an address in the transfer area 211. Therefore, the address conversion unit 108 uses the SegNs 309 in the line currently under attention of the package address table 308.
The leading address T of the transfer area 211 is obtained from the column (40
4). MIBad 303 of the package management table 301
Then, the transfer area corresponding start address Ai corresponding to the main signal system package (i), that is, the address Ai of the in-agent memory 102 corresponding to the start address of the transfer area 211 of the in-package memory 111 is obtained (405). Then, T is the start address of the transfer area 211 of the in-package memory 111 of the main signal system package (i), and the address Ai of the in-agent memory 102 corresponds to that address. The corresponding memory address in the agent is Ai +
It is calculated by the formula β-T and returned to the request source (40
6).

On the other hand, when β ≧ O, the input package memory address β is an address in the non-transfer area 205. Therefore, the address conversion unit 108 determines from the column of the Onad 304 of the row corresponding to the main signal system package number i of the package management table 301 that the non-transfer area corresponding start address Bi, that is, the non-transfer area 2 of the in-package memory 111.
In-agent memory 1 corresponding to the start address of 05
The virtual address Bi in 02 is obtained (407). Here, O is the start address of the non-transfer area 205 of the in-package memory 111 of the main signal system package (i), and there is no corresponding area in the in-agent memory 102. ), The virtual memory address space in the agent is turned on.
Is set, and the virtual address Bi corresponds to the O. Therefore, the address conversion unit 108 obtains the in-agent memory address corresponding to the in-package memory address β by the formula Bi + β-O and returns it to the request source (408).

Considering an example of converting the input of the main signal system package number i and the in-package memory address "10022" into the in-agent memory address, when the contents of the package information storage unit 103 are the contents shown in FIG. The address translation unit 108 operates as follows. First, the address conversion unit 108 uses the main signal system package number slot column 30 of the package management table 301.
2 is searched for the row corresponding to the main signal system package number i. Next, the value of SegOn 313 of the corresponding row of the package address table 308 is obtained using the pointer POLptr307 to the package address table 308 of that row. In the case of FIG. 3, the value is “10030”. Then, the input package memory address "1002"
2 ”and“ 10030 ”are compared, and the input in-package memory address is smaller, so it is determined that the input in-package memory address is within the transfer area 211. SegN indicating the transfer area start address of the package address table 308
The address “10000” is acquired from s309, and the corresponding in-agent memory address is “220 + 10022-10000” = “242” from these data.
Is determined.

Next, the conversion from the address of the memory 102 in the agent to the package number of the main signal system and the address of the memory 111 in the package will be described along the flow of the flowchart of FIG. 5 showing an example of the conversion procedure.

When the address translation requesting source inputs the in-agent memory address α from the address translation request source (501), the address translation unit 108 determines whether this in-agent memory address α corresponds to the transfer area 211 of the in-package memory 111 of the main signal system package. In order to determine whether or not it corresponds to the non-transfer area 205, from ONad in the row of the main signal system package number 1 in the package management table 301 to the non-transfer area corresponding address B1, that is, the head of the non-transfer area 205 of the in-package memory 111. Obtain the virtual address B1 in the in-agent memory 102 corresponding to the address (5
02) and α (503). Here, what is compared with the non-transfer area corresponding address B1 of the main signal system package number 1 is the non-transfer area 205 of all the main signal system packages.
This is because the non-transfer area 205 of the main signal system package of the main signal system package number 1 corresponds to the youngest virtual address (O in the package management table 301 in FIG. 3).
See the number in Nad 304).

If α <B1 as a result of comparison, the in-agent memory address α corresponds to the transfer area 211 of any of the in-package memories 111, so the following processing is performed. First, the address conversion unit 108 searches the transfer area corresponding address MIBad 303 of the package management table 301 from the top row, and Ai ≦ α <A (i + 1) (where A
Searches for i, which is the retrieved MIBad value), and obtains the main signal system package number i (504). Next, the pointer POLptr30 of the row of the main signal system package number i
Seg of the row of the package address table 308 pointed to by 7
The head address T of the transfer area 211 is obtained from Ns309 (505). Since the in-package memory address of the main signal system package (i) corresponding to the address Ai of the in-agent memory 102 is T, the in-package memory address corresponding to the address α is the main-signal system package in the in-agent memory 102. By adding T to the address difference α-Ai between the transfer area corresponding address Ai of (i) and the input address α, it is calculated as α-Ai + T and returned to the request source (506).

If α ≧ B1, the in-agent memory address α is the in-package memory 11
Since it corresponds to the first non-transfer area 205, the following work is performed. First, the address conversion unit 108 uses the package management table 3
The address ONad304 corresponding to the non-transfer area of 01 is searched from the top row, and i satisfying Bi ≦ α <B (i + 1) (where B is the value of the searched ONad) is searched to obtain the main signal system package number i. (507). Next, SegOn3 of the row of the package address table 308 indicated by the pointer POLptr307 of the row of the main signal system package number i.
The leading address O of the non-transfer area 205 is obtained from 13 (5
08). Since the in-package memory address of the main signal system package (i) corresponding to the in-agent virtual address Bi is O, the in-package memory address corresponding to the address α is the non-transfer of the main signal system package (i) in the agent 1. By adding O to the address difference α-Bi between the area corresponding address Bi and the input address α, it is calculated as α-Bi + O and returned to the request source (5
09).

For example, the memory address "1" in the agent
Considering an example of converting the input "271" into the main signal system package number and the in-package memory address, when the contents of the package information storage unit 103 are the contents shown in FIG. 3, the address conversion unit 108 operates as follows. First, the address conversion unit 108 uses the package management table 3
Non-transfer area corresponding address ONad30 of the first row of 01
4 is retrieved and the address "1000" is obtained. Next, the address conversion unit 108 compares the input addresses “1271” and “1000” with each other, and the input address “1272” is larger, so the input address is within the range of the non-transfer area 205. It is determined as the address in. Therefore, the address conversion unit 108 uses the package management table 301.
The column of the non-transfer area corresponding address ONad304 of is searched. Referring to FIG. 3, “1270” <“1272” in the row of the main signal system package number i + 1, and “1272” <“1” in the row of the main signal system package number i + 2.
290 ″, the address conversion unit 108 determines that the main signal system package number is i + 1. Then, the pointer POLptr307 to the package address table 308 in the row of the main signal system package number i + 1 is traced to the package address table 308. Of the main signal system package by accessing the second row of the non-transfer area start address SegOn3
The value of 13 is obtained as “10030”. As a result, the memory address in the package is changed to "1271-1270 +
It is determined that 10030 ”=“ 10031 ”.

Next, referring to FIG. 1, the polling process performed from the agent 1 to the main signal system package 109 will be described.

The polling process is performed by the polling processing unit 104.
Performed by The polling processing unit 104 is regularly activated by an internal timer, and the package information storage unit 1
03, the polling target address of each main signal system package is obtained, and the communication management unit 107 is used to acquire the management target data from the polling target main signal system package 109. Then, the acquired management target data is transferred to the in-agent memory 102, compared with an existing value in the in-agent memory 102, and a threshold crossing is detected. If there is a change in the value or a threshold crossing, the event notification unit 105 Tell that to. The general operation of the polling processing unit 104 is as described above. Please refer to the block diagram of FIG. 3 and FIG. 6 in which specific numerical values are entered in the memories 102 and 111, as well as the block diagram of FIG. The detailed operation will be described below.

As shown in FIG. 6, the polling processing unit 104 has a timer 611, a polling management unit 605, a state comparison unit 607 and a threshold value comparison unit 608. The timer 611 activates the polling management unit 605 periodically. When the polling management unit 605 is activated, the package management table 301 in the package information storage unit 103
The polling permission flag OnOff 305 corresponding to each main signal system package stored in the above is sequentially referred to for all the main signal system packages whose values are not 0.

Hereinafter, the polling process for one main signal system package will be described in detail by taking the polling for the main signal system package of the main signal system package number 1 whose OnOff 305 is 1 as an example.

First, the polling management unit 605 has a package management table 301 corresponding to the main signal system package number 1.
Tracing the pointer POLptr307 in the line
SegN in the corresponding row of the package address table 308
Obtain s309 and SegEv312. And Se
The area from the address written in gNs to the address immediately before the address written in SegEv is set as the polling area. That is, the package memory address "1"
The area from 0000 ”to the address“ 10019 ”is a polling area. In this polling area, the area 201 to be directly transcribed in FIG.
02 and a region 203 for which threshold crossing determination is to be performed.

Next, the polling management unit 605 sends the polling target main signal system package number 1 and the polling area to the communication management unit 107. The polling area is specified by its start address and area length. Of course, you may specify by a start address and an end address.

As shown in FIG. 6, the communication management unit 107 has a communication management means 606 and a buffer 609, and the communication management means 606 has the main signal system package number 1
Is converted into a logical communication address for designating the main signal system package on the communication path, and by designating this logical communication address, the polling area is transmitted to the communication management unit 110 of the corresponding main signal system package 109.

Main signal package 10 to be polled
The communication management unit 110 in 9 acquires the data stored in the sent polling area from the in-package memory 111 and sends the data to the communication management means 606 of the agent 1.

The communication management means 606 that has received the data stores the data in the buffer 609 and notifies the polling management unit 605 that the data acquisition from the main signal system package of the main signal system package number 1 is completed. .

After that, the polling management unit 605 sets the following 3 for the acquired data stored in the buffer 609.
One process, that is, a direct transcription process, a comparison process, and a threshold crossing determination process are performed.

(1) Direct transfer processing The polling management unit 605 uses the package address table 30.
From 8 onwards, SegNs309 and SegSc3 in the row corresponding to the main signal package currently being polled
10 and obtain the data length SegSc-SegN of the area 201 to be transferred directly to the memory 102 in the agent.
Find s. Next, the polling management unit 605 notifies the address conversion unit 108 of the number 1 of the main signal package currently being polled and the SegNs, acquires the corresponding address of the in-agent memory 102, and buffers it. The data length to be transcribed from the head of 609 is transcribed to the corresponding location in the in-agent memory 102.

In the example of concrete numerical values of the package address table 308 of FIG. 3, in the case of the main signal system package 109 of the main signal system package number 1, SegSc is “1000”.
Since 5 ”and SegNs are“ 10000 ”, the data length to be directly transcribed is 5. Further, the address conversion unit 1
The address conversion result returned from 08 is "100". Therefore, assuming that the head of the data polled in the buffer 609 corresponds to the address “0” in the buffer, the data in the area from the addresses “0” to “4” in the buffer is set to the address of the memory 102 in the agent. It will be transcribed from "100" to "104".

(2) Comparison Processing Next, the polling management unit 605 points the pointer STptr315 of the row corresponding to the main signal system package currently being polled from the package address table 308.
Thus, the leading address of the state length table 321 in which the data length of each data required when comparing the state changes is described is obtained. Then, in order to compare the memory 102 in the agent and the data in the buffer, the state comparison unit 607
In response, the head address of the state length table 321 and the SegNs 309 and SegSc 310 related to the polled main signal system package are sent.

The state comparison unit 607 reads the designated state length table 321 from the beginning, and stores the contents of the buffer 609 and the in-agent memory 102 by the amount of the data length designated in each line of the state length table 321. The operation of comparing is repeated, and the value written in the state length table 321 is “0”.
The operation ends when the data of is acquired. Here, when the compared two data are different, the state comparison unit 607 writes the data acquired from the buffer 609 to the corresponding address in the agent internal memory 102, and the event notification unit 105 compares the data in the agent internal memory. 1
The address 02 and the value stored in the address before writing are notified. Here, the value stored in the address before writing is notified because the value after writing can be known by referring to the in-agent memory 102, but the previous value has been erased by the writing. is there.

In the case of the main signal system package with the main signal system package number 1, the state comparison is as follows. Looking at the specific values in FIG. 3, Se of the main signal system package number 1
gNs309 is "10000", SegSc is "100"
Since SegNs corresponds to the address “0” in the buffer 609, SegSc corresponds to the in-buffer address “5”, which is the start address of the state change detection data. The state comparison unit 607 corresponds to the state. The length table 321 is read line by line for comparison.First, the first line of the state length table 321 is accessed to acquire the data length 1 described therein, and the data of length 1 is stored in the buffer 6
09 and the memory 102 in the agent. From the buffer 609, data of length 1 is acquired from the leading address “5” of the state change detection data obtained earlier.
From the memory 102 in the agent, the address conversion unit 6
By inputting the main signal system package number 1 and the in-package memory address “10005” to 04, the in-agent address “105” is obtained, and the data of length 1 is acquired from the address “105” in the in-agent memory 102. . Memory address in agent "105"
The data corresponding to is "10" in FIG. On the other hand, the state change detection data stored in the buffer 609 is the same as that written in the in-package memory 111 of the main signal system package 109 of FIG. 6, and the data of the first data length 1 is also “10”. . Therefore, since both are the same, neither writing to the in-agent memory 102 nor notification to the event notification unit 610 is performed. Next, the next row of the state length table 321 is read, and the data having the data length 2 written therein is acquired from the buffer 609 and the agent internal memory 102. Data of data length 2 after the in-agent memory address 107 is “4”,
It is "4". On the other hand, the corresponding data of data length 2 stored in the buffer 609 is “4”, “5”.
It is. Therefore, the state comparison unit 607 writes the data “4” and “5” in the buffer 609 at and after the address 107 in the in-agent memory 102, and the event notification unit 610 writes the address 10 in the in-agent memory 102.
7 and the values “4” and “4” previously stored in the agent internal memory 102 are input to the event notification unit 105.
The remaining rows of the state length table 321 are similarly processed.

(3) Threshold Crossing Judgment Processing Next, the polling management unit 605 judges from the package address table 308 that SegNs 309 and Seg of the row corresponding to the main signal system package currently being polled.
Th311 is acquired, and the offset from the head of the in-package memory 111 of the area 203 in which threshold crossing detection is performed is obtained from the difference. Then, the polling management unit 60
Reference numeral 5 denotes a pointer address THptr 307 to the threshold information table of the package management table 301, which is the starting address of the threshold information table 316 of the main signal system package currently being polled. Address of the existing area (offset above)
It is also input to the threshold comparison unit 608.

The threshold comparing unit 608 accesses the threshold information table 316 indicated by THprt307, reads the contents line by line, and performs threshold crossing determination until the processing of the last line of the threshold information table 316 is completed. to continue. The specific operation is as follows.

First, the data having the data length length 317 written in the row read from the threshold information table 316 is read from the buffer 609. When reading the first row of the threshold information table 316, the data read from the buffer 609 starts from the start address of the area in the buffer 609 in which data for threshold crossing detection is stored, which is input from the polling management unit 605. If not, the start point is immediately after the address that was processed immediately before. Next, when the value of state 320 in this row indicates “upper”, the data of the same length read from the buffer 609 is compared with the lower threshold LowT319. Also, s
If the value of the state 320 indicates “lower”, the data read from the buffer 609 is set to the upper threshold HighT31.
Compare with 8. If, as a result of the comparison, the magnitude relationship with the previous one has changed, the event notification unit 610 is notified of the address of the data to be compared in the in-agent memory 102 and the new magnitude relationship. Also, a new magnitude relationship is set in the state 320.

Next, referring to FIG. 1, the operation on the agent 1 side when an asynchronous notification is given from the main signal system package 109 will be described.

The asynchronous notification from the main signal system package 109 is sent to the communication management section 107 of the agent 1.
The communication management unit 107 sends the content of the received asynchronous notification to the asynchronous event processing unit 106, and the asynchronous event processing unit 106
Uses the address conversion unit 108 to obtain the address of the corresponding in-agent memory 102, transfers the management target data in the asynchronous notification sent to the corresponding address of the in-agent memory 102, and then notifies the event notification unit 105. Tell the contents of. The outline of the operation related to the asynchronous notification is as described above. Hereinafter, FIG. 6 and the asynchronous event processing unit 10 will be described.
Detailed operations will be described with reference to the flowchart of FIG.

An event such as an alarm generated in the main signal system package 109, which is urgently required to be notified, is asynchronously notified to the agent 1 without waiting for polling as described later. In the asynchronous notification between the main signal system package 109 and the agent 1, an event is generated from the communication management unit 110 of the main signal system package 109 to the communication management unit 107 of the agent 1 in order to identify the event. A method of transferring the address of the in-package memory 111 that caused the problem and its current value is adopted.

The communication management unit 107 in the agent 1
When an asynchronous notification is received from the main signal system package 109, the main signal system package number that issued the asynchronous notification to the asynchronous event processing unit 106 and the package memory 111 that caused the event sent by the asynchronous notification are generated. Address and its current value.

The asynchronous event processing unit 106 is the communication management unit 1.
When the main signal system package number sent from 07, the in-package memory address and the current value stored in the memory are input (701), first, the main signal system package number and the in-package memory address are converted into an address conversion unit. The address is notified to 108 and the corresponding address of the in-agent memory 102 is acquired (702). Next, the value stored in the acquired in-agent memory address is acquired from the in-agent memory 102, and the current value input from the communication management unit 107 is written to the address in the in-agent memory 102 (703). ). Then, the address of the written memory 102 in the agent and the value stored in the address are sent to the event notification unit 105 (7
04).

The event notification unit 105 notifies the event reception unit 612 of these two contents, and the event reception unit 612 performs asynchronous processing in the agent 1 based on the transmitted contents. As this asynchronous processing, it is conceivable to perform an operation of asynchronously sending a message to a manager (not shown) or record "asynchronous notification has occurred" in the agent 1.

Next, referring to FIG. 1, the occasional access processing performed from the agent 1 to the main signal system package 109 will be described. The occasional access processing is executed by the occasional access processing unit 101 when an occasional access request is issued by a command notifying a target range from a manager or the like (not shown). As occasion demands, the access processing unit 101 uses the address conversion unit 108 to convert the address of the in-agent memory 111 into the corresponding main signal system package number and address of the in-package memory for the target range. Next, via the communication management unit 107, setting data is sent to the main signal system package of the main signal system package number in the target range of the package memory or at the time of setting, and the return result is acquired via the communication management unit 107. Then, the result is returned to the requesting manager or the like. The general operation of the occasional access processing unit 101 is as described above. Below, FIG. 8 showing the internal structure of the occasional access processing unit 101 and the contents of the memories 102 and 111 are further embodied, and data by occasional access. This will be described in detail with reference to FIG. 9 showing the flow of processing at the time of acquisition and FIG. 10 showing the flow of processing at the time of data setting by occasional access.

The occasional access processing section 101 is composed of an occasional access execution section 805 and an occasional access command section 807 as shown in FIG.
The management target data from 9 and the management target data for the main signal system package 109 are set at any time.
Hereinafter, description will be made in the order of value acquisition and value setting.

(1) Acquisition of value from in-package memory of main signal system package Whenever the access command unit 807 receives a data setting command from the outside, it always designates the data to be acquired to the access execution unit 805. In addition, the in-agent memory 10 corresponding to the start address of the area of the in-package memory 111 of the main signal system package 109 from which data is acquired
Using the address 2 and the length of the data to be acquired, these are input to the access execution unit 805 as needed (901).
If the data to be acquired is stored in the non-transfer area 205, the address of the in-agent memory 102 cannot be used, so the package management table 301
Specify the address corresponding to the non-transfer area described in.

The occasional access execution unit 805 receives the main signal system package number and the in-package memory address obtained by converting the address notified from the occasional access instruction unit 807 by the address conversion unit 108, and the occasional address instruction unit 807. The notified length of data to be acquired is sent to the communication management unit 107 (902).

The communication management unit 107 sends the in-package memory address to be acquired and the data length to the communication management unit 110 of the main signal system package 109 corresponding to the notified main signal system package number (903). ).

Communication management unit 1 of main signal system package 109
10 acquires the data of the notified data length from the notified address of the package memory 111, transfers the data to the communication management unit 107 of the agent 1, and the communication management unit 107 receives the data (904). ).

The communication management unit 107 transfers the received data to the access execution unit 805 at any time, and the access execution unit 8 at any time.
05 transfers this data to the access command unit 807 at any time, and the access command unit 807 outputs at any time to the outside (905).

(2) Setting of Value in Package Memory of Main Signal Package When the access command section 807 receives a data setting command from the outside, it accesses the access execution section 805 at any time.
The address of the in-agent memory 102 corresponding to the start address of the in-package memory area of the main signal system package 109 for which data is to be set, and the data to be set are input (1001). Data is set in the non-transfer area 20
Only done for 5. Therefore, since the address of the memory in the agent cannot be used, the address corresponding to the non-transfer area described in the package management table 301 is designated.

The occasional access execution unit 805 uses the address translation unit 804 to translate the input address into the main signal system package number and the in-package memory address, and the occasional access instruction unit 807 inputs the write. The communication management unit 107 is notified of the data for performing (1002).

The communication management unit 107 sends the in-package memory address and the data to be set to the communication management unit 110 of the main signal system package 109 corresponding to the notified main signal system package number (1003). .

Communication management unit 1 of main signal system package 109
10 writes the data transferred from the agent 1 to the area of the in-package memory 111 having the notified in-package memory address as the start address, and notifies the result (1004). That is, if the writing fails for some reason, the communication management unit 10
7 is notified that the writing has failed, and if the writing is successful, the communication management unit 107 is notified that the writing has been successful.

The communication management unit 107 of the agent 1 receives this notification and notifies the access execution unit 805 of the success / failure of writing at any time. Upon receiving this notification, the occasional access execution unit 805 notifies the occasional access instruction unit 807 of success / failure of setting the value in the main signal system package, and the occasional access instruction unit 807 outputs this to the outside ( 1005).

Next, regarding the automatic numbering of the logical communication address in the communication management unit 107 and its management function, which are provided in this embodiment, the flowchart of FIG. 11 and the communication management unit 107 shown in more detail in FIG. This will be described with reference to the block diagram.

Main signal system package 109 in the transmission path
As a communication address for designating the physical communication address, a physical communication address pre-allocated to the main signal system package 109 and a logical communication capable of making a one-to-one correspondence with this physical communication address in the transmission path. There are two types of address. In this embodiment, a logical communication address is used as the communication address for the agent 1 to designate the main signal system package 109 so that systematic management is possible. As an example of the logical communication address, the main signal system package 109 is used.
Slot number, IP address, etc.

The correspondence between the main signal system package number and the logical communication address is managed by the agent 1, and the logical communication address corresponding to its own physical communication address is managed by the main signal system package, but the main signal system package is added. In a network device capable of changing the configuration such as the above, the agent 1 cannot manage the main signal system package numbers and the logical communication addresses of all the main signal system packages 109 in the network device at the time of initialization. Also,
The main signal system package does not know its own logical communication address. Therefore, the communication management unit 107 of this embodiment solves this problem as follows.

In the main signal system package 109 in which there is no correspondence between the physical communication address and the logical communication address of the independent signal system package, the communication management unit 1 is initialized at the time of initialization.
10 issues to the transmission path an address allocation request having as arguments the type of the main signal system package and the main signal system package number and the physical communication address of the main signal system package of itself (1101).

In the communication management unit 107 of the agent 1, as shown in FIG. 12, an address conversion unit 1203 and a logical address naming unit 1204 are provided. When the logical address naming unit 1204 receives the address allocation request transmitted by the main signal system package 109 to the transmission path, the logical address naming unit 1204 sets the logical communication address corresponding to the physical communication address of the main signal system package indicated by the argument in the address allocation request. Numbering (1102). The numbering of the logical communication address corresponding to the physical communication address in the agent 1 is performed according to the policy that the physical communication addresses of the main signal system packages belonging to the same type of group are numbered to the logical communication addresses belonging to the same group. . Communication management unit 10
7 notifies the logical communication address determined by the logical address naming unit 1204 to the main signal system package 109 that has issued the address allocation request, and also notifies the main signal system package number and the logical communication address of the main signal system package 109 this time. The correspondence relationship of is stored in the address conversion unit 1203 (1103). Since the main signal system package 109 still does not know its own logical communication address after issuing the address allocation request, the above notification is broadcast by combining the physical communication address and the logical communication address. It detects its own physical communication address and receives a logical communication address. When receiving the logical communication address determined by the agent 1, the communication management unit 110 of the main signal system package 109 that has issued the address allocation request stores the logical communication address, and from the next time, it will transmit when performing communication. It sends its own logical communication address as an identifier together with the data. On the other hand, in the communication management unit 107, depending on the correspondence between the main signal system package number stored in the address conversion unit 1203 and the logical communication address, the main signal of the communication destination given from the access processing unit 101 and the polling processing unit 104 at any time. Communication is performed by acquiring the logical communication address corresponding to the system package number.

Next, the package information automatic setting function of this embodiment will be described with reference to FIGS.
This will be described with reference to the flowchart of FIG.

At the time of adding the new main signal system package 109 as described above, the main signal system package information such as the data structure and memory layout of the agent internal memory 111 of the main signal system package is unknown in the agent 1. Therefore, the management operation for the main signal system package such as polling cannot be performed. Therefore, in order to obtain the main signal system package information, the following (A) is used in this embodiment.
Alternatively, the process (B) is executed.

(A) The communication management unit 107 assigns a logical communication address (130 as described with reference to FIG. 11).
1), the communication management unit 107 uses the main signal system package 1
09 to send a package information sending request (13
02). When the main signal system package 109 receives this package information transmission request, the main signal system package 10
The main signal system package information of No. 9 is sent to the communication management unit 107 (1303). Here, the package information to be transmitted includes the following information.

Package address information: The first address, the second group, the third group, the fourth group and the fifth group in the own package memory 111 are included in the start address and the last address. State length data: The length of each data in the second group is included. Threshold information; length of each data in the third group, upper threshold,
A lower threshold is included. Polling availability information;

The communication management unit 107 generates management information concerning the main signal system package in the package information storage unit 103 based on the received main signal system package information (1304). That is, one new line is added to the package management table 301, the main signal system package number is associated with the slot 302, and the MIBad is associated with the start address of the transfer area of the main signal system package.
Is set to ONad 304, and a virtual address in the package corresponding to the start address of the non-transfer area of the main signal system package is set to ONad 304, and polling permission / prohibition information is set to OnOff 305. Further, a threshold value information table 316 is created from the threshold value information and added, and the start address thereof is set in the THptr 306 of the additional line of the package management table 301. Furthermore, if there is no row of the package address table 308 corresponding to the main signal system package type,
A new row is added to the package address table 308 according to the received package address information, and a state length table 321 is further created and added according to the state length data, and the start address thereof is STptr of the additional row of the package address table 308. Set to.

(B) When the main signal system package 109 is initialized, from the main signal system package 109 to the transmission line,
At the same time as transmitting an address allocation request including the type of the main signal system package, the main signal system package number, and the physical communication address of the main signal system package, at the same time, the data structure of the internal memory 111 of the self signal system package 109, the memory arrangement, and the like are described above. The main signal system package information is transmitted to the transmission line. Communication management unit 1 of agent 1
Upon receiving these (1401), the 07 assigns a logical communication address to the received address assignment request by the same method as described above (1402). Also, based on the received main signal system package information, management information concerning the main signal system package is generated in the package information storage unit 103 (1403).

Next, the main signal system package 1 in FIG.
The embodiment on the 09 side will be described.

FIG. 16 is a block diagram of an embodiment of the main signal system package 109, which is the communication management unit 11 described in FIG.
0, the in-package memory 111, an exclusive control unit 172, a package data transfer unit 174, and a table 17
5, the memory transfer unit 176 and the main signal system package data 177 are drawn.

The exclusive control unit 172 is a part for performing exclusive control of access to the in-package memory 111, and is a queue for recording a flag indicating whether access is possible and a device name waiting for access to the in-package memory 111 inside. Have and. The exclusive control unit 172 is a device (110,
174, 176) and operates as follows.

When an access request to the in-package memory 111 is received from another device while the flag is "accessible", the flag is set to "inaccessible" and an access request is issued to access the in-package memory 111 to the device. To give permission. When the access request to the in-package memory 111 is received from another device when the flag is "access disabled", the device name is registered at the end of the queue. The devices registered in the queue of the exclusive control unit 172 stop operating until there is a call from the exclusive control unit 172. The device that has accessed the in-package memory 111 reports to the exclusive control unit 172 that the access has ended when the access ends. At this time, if there is a device registered in the queue in the exclusive control unit 172, the exclusive control unit 172 calls the device registered at the head of the queue.

The main signal system package data 177 is a set of data such as the terminals of the LSI elements constituting the main signal system package 109 that directly represent the state of the package. The table 175 is a table that associates each element of the main signal system package data 177 with the position in the in-package memory 111, and the contents thereof are registered in advance by the package maker when the main signal system package 109 is manufactured.

The package data transfer unit 174 periodically reads the main signal system package data 177 described in the table 175, and the exclusive control unit 172 performs the exclusive control on the in-package memory 111, and the in-package memory 111. The main signal system package data 177 corresponding to the transfer area 211 of FIG. Also, the package data transfer unit 174 compares the data of the fourth group such as the above-mentioned alarm in the transfer area 211 with the existing value at the time of transfer, and if the data has changed, manages the address of the data by communication management. Notify the unit 110.

When the communication management unit 110 receives an instruction from the agent 1 and writes it in the package memory 111, the following procedure is taken. First, the communication management unit 110 applies exclusive control to the in-package memory 111 by the exclusive control unit 172, and then to the memory transfer unit 176,
The start address and length of the package memory 111 to be written are notified, and then the package memory 1 is written.
Write to 11. The memory transfer unit 176 performs exclusive control on the in-package memory 111 by the exclusive control unit 172, reads the contents of the address of the written in-package memory 111 notified from the communication management unit 111, and refers to the table 175. Then, the main signal system package data 177 to be the transfer destination is specified and written in the corresponding place. As a result, the write information from the agent 1 is transferred to the main signal system package data 177 via the in-package memory 111.

Note that the communication management unit 110 is the agent 1
When the in-package memory 111 is read in response to an instruction from, the exclusive control unit 172 first applies exclusive control to the in-package memory 111, and then the address range specified by the agent 1 in the in-package memory 111. Read the data of. Further, when the package data transfer unit 174 notifies the address because the management data of the fourth group such as the alarm data in the transfer area 211 is changed, the exclusive control unit 172 causes the internal memory of the package to be changed. Exclusive control is applied to 111, data of the notified address in the package memory 111 is read, and the address and the data are notified to the agent 1 by asynchronous notification.

[0100]

As described above, according to the present invention, the following effects can be obtained.

According to the configurations of claims 1 to 7, a large number of management target data can be collectively obtained by one polling by designating the range of the package memory.
It enables efficient and high-speed data acquisition. In addition, the latest data is reflected in the package memory in parallel on each managed device side, and there is no data collection time during polling as in the prior art, so faster data acquisition is possible. Can be realized.

According to the configuration of claims 2 to 5, the management target data to be transferred directly to the memory in the agent, the management target data to be compared with the existing value, and the predetermined threshold value should be compared with one polling. It is possible to collectively acquire and collectively process the management target data of a plurality of groups such as the management target data.

According to the configurations of claims 4, 5, and 10,
The management target data of the fourth group such as an alarm can be promptly notified from the managed device to the agent.

According to the eighth aspect of the present invention, by specifying the range of the memory in the package, it is possible to obtain a large number of management target data and set the data with one occasional access, and efficient and high-speed occasional access processing is possible. become. In addition, since the latest data is reflected in the transfer area in the package memory and the managed data in the non-transfer area is reflected in the managed device side, data collection is performed at any time when accessing as in the conventional technology. It is possible to realize a higher-speed access process at any time without involving time or data setting time.

According to the ninth aspect of the invention, the data acquisition request source or the data setting request source that requests access processing at any time does not need to be aware of the in-package memory address of each managed device. Access processing can be requested at any time.

According to the configurations of claims 6 and 11, when a new managed device is added, the logical communication address required for communication with the managed device can be automatically assigned and managed. It is possible to flexibly deal with the addition of managed devices.

According to the seventh and the twelfth aspects, it is possible to automatically generate management information required for polling of the managed device, access at any time, etc., when a new managed device is added. It is possible to flexibly deal with the addition of managed devices.

[Brief description of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a diagram showing an example of data arrangement in a package memory, and a correspondence relationship between a package memory and an agent memory.

FIG. 3 is a diagram showing a configuration example in a package information storage unit.

FIG. 4 is a flowchart showing an example of a conversion procedure from a main signal system package number and an in-package memory address to an in-agent memory address.

FIG. 5 is a flowchart showing an example of a conversion procedure from an in-agent memory address to a main signal system package number and an in-package memory address.

FIG. 6 is a block diagram showing each unit of the block diagram of FIG. 1 in more detail.

FIG. 7 is a flowchart showing a processing example of an asynchronous event processing unit.

8 is a block diagram more specifically showing an internal configuration example of the occasional access processing unit in the block diagram of FIG.

FIG. 9 is a flowchart showing a processing example at the time of data acquisition by the occasional access processing.

FIG. 10 is a flowchart showing a processing example at the time of data setting by the occasional access processing.

FIG. 11 is a flowchart showing an example of logical communication address allocation processing.

12 is a block diagram showing more specifically an internal configuration example focusing on a communication management unit 107 in the block of FIG.

FIG. 13 is a flowchart showing an example of package information acquisition and management.

FIG. 14 is a flowchart showing another example of package information acquisition and management.

FIG. 15 is a diagram showing a specific example of arrangement of data to be managed in a package memory.

FIG. 16 is a block diagram of an embodiment of a main signal system package.

FIG. 17 is a block diagram of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Agent 101 ... Occasional access processing unit 102 ... Agent internal memory 103 ... Package information storage unit 104 ... Polling processing unit 105 ... Event notification unit 106 ... Asynchronous event processing unit 107 ... Communication management unit 108 ... Address conversion unit 109 ... Main signal System package 110 ... Communication management unit 112 ... Transmission path 205 ... Non-transfer area 211 ... Transfer area

Claims (12)

[Claims] 1. A network management system in which an agent as a management proxy device for performing network management and a plurality of managed devices are connected by a transmission path, wherein the managed device has a self-managed device in a transfer area. The package internal memory holding a copy of the management target data and the current management target data in the self-managed device are set so that the management target data held in the transfer area of the package internal memory is the latest copy. A package data transfer unit for transferring to the internal memory, provided between the internal memory of the package and the transmission path, accesses an area of the internal memory of the package within a range designated by the agent, and outputs the result to the agent. A communication management unit on the managed device side for notifying, and the agent is connected to the transmission path. And a polling processing unit that notifies the polling target range of the in-package memory of each managed device through the agent communication management unit and collectively acquires polling target data. A network management device characterized by the above. 2. A network management system in which an agent as a management proxy device for performing network management and a plurality of managed devices are connected by a transmission line, wherein the managed device is provided with a self-managed device in a transfer area. To ensure that the copy of the management target data of the first group, the second group and the third group is continuously stored, and the management target data held in the transfer area of the package memory is the latest copy. A package data transfer unit that transfers the current management target data in the self-managed device to the package memory; and a package data transfer unit provided between the package memory and the transmission line, the range being specified by the agent. Managed device side communication that accesses the area of the package memory and notifies the agent of the result A communication unit, an agent-side communication management unit connected to the transmission path, an event notification unit that notifies an event that has occurred, and the contents of the transfer area of the in-package memory of each managed device. In the agent memory, the addresses of the areas in the package memory of each managed device in which the management target data of the first group, the second group and the third group are stored, and these first group, A package information storage unit that holds the management target data of the second group and the third group in association with the address of the area in the agent memory to which the data should be transferred, and the package for each managed device through the agent-side communication management unit. The management target data of the first group, the second group and the third group of the internal memory are stored The range of the existing area is obtained from the package information storage unit and notified to the managed device to collectively acquire the management target data of the first group, the second group and the third group,
The management target data of the group is transferred to the corresponding area of the memory in the agent as it is, and the management target data of the second group is compared with the existing value stored in the memory in the agent, and when the data does not match, the memory in the agent And notify the event notification section,
The management target data of the group includes a polling processing unit that transfers the data to the memory in the agent and compares it with a predetermined threshold value and notifies the event notification unit when a threshold value crossing is detected. Network management device. 3. The agent is used by the polling processing unit and refers to the contents of the package information storage unit to convert the package memory address of the managed device to the agent memory address and vice versa. The network management device according to claim 2, further comprising an address conversion unit that performs conversion. 4. A network management system in which an agent as a management proxy device for performing network management and a plurality of managed devices are connected by a transmission line, wherein the managed device is provided with a self-managed device in a transfer area. The in-package memory that continuously holds a copy of the managed data of the first group, the second group, the third group, and the fourth group, and the managed data that is held in the transfer area of the in-package memory is the latest. A package data transcription unit for transcribing the current management target data in the self-managed device to the package memory so as to be a copy, and is provided between the package memory and the transmission path and designated by the agent. Access the memory area in the package within the specified range and notify the agent of the result. In addition, when there is a change in the management target data of the fourth group of the in-package memory, the managed device which notifies the agent of the changed management target data of the fourth group and its package memory address to the agent by asynchronous notification A side communication management unit, an agent side communication management unit connected to the transmission path to the agent, an event notification unit that notifies an event that has occurred, and a transfer area of a package memory of each managed device. The memory in the agent to which the contents of the above are transferred, and the address of the area in the package memory of each managed device in which the management target data of the first group, the second group, the third group, and the fourth group are stored, The management target data of these 1st group, 2nd group, 3rd group and 4th group should be posted. A package information storage unit that holds the address of the area of the in-agent memory in association with each other, and a first group, a second group, and a third group of the in-package memory for each managed device through the agent-side communication management unit. Is obtained from the package information storage unit to notify the managed device of the range of the area in which the management target data is stored, and the management target data of the first group, the second group, and the third group are collectively acquired. 1
The management target data of the group is transferred to the corresponding area of the memory in the agent as it is, and the management target data of the second group is compared with the existing value stored in the memory in the agent, and when the data does not match, the memory in the agent And notify the event notification section,
Data to be managed by the group is transferred to the memory in the agent and compared with a predetermined threshold value, and a polling processing unit which notifies the event notification unit when a threshold crossing is detected, and the agent-side communication management When the managed device and the in-package memory address of the fourth group are notified by an asynchronous notification from the managed device through the unit, the managed data of the fourth group corresponds to the in-package memory address. A network management device, comprising: an asynchronous event processing unit that transfers to an address of a memory in the agent and notifies the event notification unit. 5. The agent is used by the polling processing unit and the asynchronous event processing unit, refers to the contents of the package information storage unit, and moves from the package memory address of the managed device to the agent memory address. 5. The network management device according to claim 4, further comprising an address conversion unit that performs the conversion of the above and the reverse of the above. 6. The managed-device-side communication management unit has a configuration for notifying the agent-side communication management unit of the type and number of the self-managed device and the physical communication address when the self-managed device is initialized. The agent-side communication management unit assigns a logical communication address corresponding to the physical communication address from within the notified logical communication address group corresponding to the type of the managed device to the managed-device-side communication management unit. With sending
The network management device according to claim 2, 3, 4, or 5, wherein the network management device is configured to hold a correspondence relationship between a numbered logical communication address and a number of the managed device. 7. The managed-device-side communication management unit, when initializing the managed device, sends package information including memory allocation information of management target data of each group in a packaged memory of the managed device to the agent. The agent-side communication management unit is configured to generate new management information corresponding to the managed device in the package information storage unit based on the package information. Item 6. The network management device according to item 6. 8. In a network management system in which an agent as a management proxy device for performing network management and a plurality of managed devices are connected by a transmission line, the managed device is provided with a transfer area and a non-transfer area. The in-package memory that holds a copy of the managed data of the managed device, and the current managed object in the self-managed device so that the managed data held in the transfer area of the in-package memory becomes the latest copy A package data transfer unit for transferring data to the in-package memory; a memory transfer unit for transferring the management target data held in the non-transfer area of the package memory to the current management target data of the self management device; It is provided between the memory in the package and the transmission path, and the package in the range specified by the agent is installed. A managed device-side communication management unit that accesses an area of the internal memory and notifies the agent of the result, the agent-side communication management unit connected to the transmission path, and the managed device When acquiring data from the transfer area and non-transfer area of the package memory of the device, the agent-side communication management unit notifies the managed device of the range to be accessed and collectively acquires the data within the range. When setting data in the non-transfer area of the memory in the package, the agent side communication management unit is notified to the managed device of the range to be accessed and the data to be set, and the data is set in the range. A network management device comprising: an occasional access processing unit that collectively sets. 9. A network management system in which an agent as a management proxy device for performing network management and a plurality of managed devices are connected by a transmission line, wherein the managed device is provided with a transfer area and a non-transfer area. The in-package memory that holds a copy of the managed data of the managed device, and the current managed object in the self-managed device so that the managed data held in the transfer area of the in-package memory becomes the latest copy A package data transfer unit for transferring data to the in-package memory; a memory transfer unit for transferring the management target data held in the non-transfer area of the package memory to the current management target data of the self management device; It is provided between the memory in the package and the transmission path, and the package in the range specified by the agent is installed. A managed device-side communication management unit that accesses an area of the internal memory and notifies the agent of the result, the agent-side communication management unit connected to the transmission path, and each of the managed devices. A relation between the internal memory of the agent to which the contents of the transfer area of the package memory of the management device are transferred, the address of the transfer area in the package memory of each of the managed devices, and the address of the corresponding area of the internal memory of the agent, And a package information storage unit that holds the relationship between the address of the non-transfer area in the package memory of each managed device and the corresponding virtual in-memory memory address, and the target of the data acquisition request from the data acquisition request source. When the target range of the management device and the memory in the agent is input, the error The target range of the internal memory of the agent is converted into the target range of the corresponding memory of the package, and the corresponding managed device is notified through the agent side communication management unit to collectively acquire the data within the range, and the data setting request source When the managed device to be data set, the target range of the memory in the agent, and the setting data are input from, the target range of the memory in the agent is converted into the target range of the corresponding package memory, and the agent side An occasional access processing unit that notifies the corresponding managed device together with the setting data through the communication management unit and collectively sets the setting data within the range, and is used by the occasional access processing unit and refers to the contents of the package information storage unit To change the memory address in the agent to the package memory address of the managed device. A network management device, comprising: an address conversion unit for converting. 10. A network management system in which an agent as a management proxy device for performing network management and a plurality of managed devices are connected by a transmission path, wherein the managed device is provided with a transfer area and a non-transfer area. The in-package memory that holds a copy of the managed data of the managed device, and the current managed object in the self-managed device so that the managed data held in the transfer area of the in-package memory becomes the latest copy A package data transfer unit for transferring data to the in-package memory; a memory transfer unit for transferring the management target data held in the non-transfer area of the package memory to the current management target data of the self management device; It is provided between the memory in the package and the transmission path, and the area within the range specified by the agent is When the area of the memory in the cage is accessed and the result is notified to the agent, and when there is a change in the management target data that needs urgent notification among the management target data held in the transfer area of the package memory. A managed device-side communication management unit that notifies the agent of the changed management target data and its package memory address by an asynchronous notification, and the agent includes an agent-side communication management unit connected to the transmission path; An event notification unit for notifying an event that has occurred, an agent internal memory to which the contents of the transfer area of the package memory of each managed device are transferred, and an address of the transfer area in the package memory of each managed device And the corresponding address of the area of the memory in the agent corresponding to each A package information storage unit that holds the relationship between the address of the non-transfer area in the package memory of the management apparatus and the corresponding virtual agent memory address, and the managed apparatus and the agent that are the data acquisition targets from the data acquisition request source When the target range of the internal memory is input, the target range of the internal memory of the agent is converted into the target range of the corresponding internal memory of the package, and the corresponding managed device is notified through the agent-side communication management unit. When the data within the range is collectively acquired and the managed device to be data set, the target range of the memory in the agent, and the setting data are input from the data setting request source, the target range of the memory in the agent is corresponded. Convert to the target range of the memory in the package and set the agent side communication management unit Through the occasional access processing unit that notifies the corresponding managed device together with the setting data and collectively sets the setting data within the range, and the managed data by the asynchronous notification from the managed device through the agent side communication management unit and When the in-package memory address is notified, the managed data is transferred to the address of the in-agent memory corresponding to the in-package memory address, and an asynchronous event processing unit is notified to the event notification unit, Used by the occasional access processing unit and the asynchronous event processing unit, referring to the contents of the package information storage unit, conversion from a package memory address of the managed device to an agent memory address and vice versa is performed. A network management device characterized by comprising an address conversion unit for performing . 11. The managed-device-side communication management unit has a configuration for notifying the agent-side communication management unit of the type and number of the self-managed device and the physical communication address when the self-managed device is initialized. The agent-side communication management unit assigns a logical communication address corresponding to the physical communication address from within the notified logical communication address group corresponding to the type of the managed device to the managed-device-side communication management unit. With sending
The network management device according to claim 9 or 10, wherein the network management device is configured to hold a correspondence relationship between a numbered logical communication address and a number of the managed device. 12. The managed device-side communication management unit notifies the agent of package information including memory allocation information of managed data in a packaged memory of the managed device when the managed device is initialized. 12. The configuration, wherein the agent-side communication management unit has a configuration for generating new management information corresponding to the managed device in the package information storage unit based on the package information. Network management device.