JP3191667B2 - Network management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a network management device, and more particularly, to an agent serving as a management proxy device for performing network management, wherein a managed device such as a main signal system package connected via a transmission path is managed. 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 comprising a manager which is a management device, a main signal system package which is a managed device, and an agent between the manager and the main signal system package which acts as a surrogate management device for performing network management. When an agent performs a management operation (acquisition of a state, setting of data, etc.) on a main signal system package, an interface using a command as shown in FIG. 17 is conventionally used. For this purpose, each main signal system package is provided with a mechanism such as a command interpreting section, a data collection setting section, and a response format generating section.

When acquiring data to be managed of each main signal system package from an agent by polling, a command specifying the logical name of the data to be managed is specified for each data to be managed of one main signal system package. The data is transmitted to the main signal system package by polling. On the main signal system package side, the command is interpreted by the command interpreter, the corresponding data is collected from the main signal system package by the data collection setting unit, and the response format is generated by the response format generator. A response including the collected data is generated and returned to the agent.

[0004] In addition to the polling, a command specifying the logical name of the data to be managed is transmitted to the main signal system package when the data to be managed of an arbitrary main signal system package is obtained from the agent as needed. On the signal system package side, the same operation as in the polling was performed. Furthermore, when data is set from the agent to the data to be managed in any main signal system package at any time,
A command that specifies the logical name of the data to be managed and the setting data is sent to the main signal system package. On the main signal system package side, the command interpreter interprets the command, and the data collection and setting unit reads the corresponding managed data. , And the response format generation unit generates the response and returns it to the agent.

[0005]

In the prior art described above, only one management target data can be acquired by one polling. Therefore, even when a large number of data to be managed are obtained from one main signal system package by polling, it is necessary to perform polling many times, and the transfer efficiency is reduced due to communication overhead.

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

Similarly, in the above-described prior art, only one management target data can be acquired or set by one occasional access. Therefore, a large number of data to be managed can be obtained from an arbitrary main signal system package by accessing at any time,
Conversely, when setting data, it is necessary to perform access many times as needed, and the transfer efficiency is reduced due to communication overhead.

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

[0009]

SUMMARY OF THE INVENTION According to the present invention, there is provided a network management system in which an agent serving as a proxy management device for performing network management and a plurality of managed devices are connected by a transmission line. And a memory in the package for holding a copy of the data to be managed by the self-managed device. The memory in the package contains the data to be managed that is transferred from the managed device to the agent (for example, attribute data such as termination point information, status data such as operation status information, performance data such as error rates, and alarms such as various types of fault information). Has a transfer area for storing Then, in each managed device, the current managed data in the self-managed device is transcribed to the package memory so that the managed data held in the transfer area of the in-package memory becomes the latest copy. A package data transfer unit and a managed device side communication management unit that accesses a region of the in-package memory specified by the agent and notifies the agent of the result are provided. Therefore, the agent can acquire the latest data to be managed by acquiring the contents of the memory in the package of each managed device at the time of polling. For this reason, the agent notifies the agent-side communication management unit and, via the agent-side communication management unit, the range to be polled of the memory in the package to each managed device,
A polling processing unit is provided for collectively acquiring polling target data returned from the communication management unit of each managed device.

[0010] The management target data stored in the transfer area of the memory in the package is a first group which is obtained by polling and is directly transferred to the memory in the agent, and is obtained by polling and compared with the existing value in the memory in the agent. The second group is grouped into a third group obtained by polling and subjected to intersection determination with a predetermined threshold, and is stored in a continuous area of the memory in the package. Then, by specifying the access range, the data to be managed of all groups is acquired collectively,
Each group of data 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 in which each group is stored and the address of the memory in the agent to which the group is to be transcribed. Addresses of areas in the internal memory where the first, second, and third groups of managed data are stored, and in the agent to which the first, second, and third groups of managed data are to be transcribed. There is provided a package information storage unit which holds the address of the memory area in association with the address. The polling processing unit, for each managed device through the agent-side communication management unit, determines the range of the area where the first, second, and third groups of management target data in the memory in the package are stored in the package information. The management target data is obtained from the storage unit and notified to the managed device to collectively obtain the management target data of the first group, the second group, and the third group. Then, the data to be managed in the first group is transcribed as it is to the corresponding area of the memory in the agent, and the data to be managed in the second group is compared with the previously obtained data stored in the memory in the agent, and the data is not matched. The data is transferred to the memory in the agent and notified to the event notification unit. The data to be managed of the third group is transferred to the memory in the agent and is compared with a predetermined threshold value. Notify.

[0011] If the data to be managed, such as alarm data, in the transfer area of the memory in the package of the managed device, which requires urgent notification, is transferred after waiting for polling, the notification will be delayed. For this reason, the management target data requiring urgent notification is grouped as data of the fourth group, and the managed device-side communication management unit changes the fourth data after the change when the management target data of the fourth group changes. The agent notifies the agent of the data to be managed of the group and the memory address in the package by asynchronous notification. The agent includes an asynchronous event processing unit. When the managed device and the memory address in the package thereof are notified by an asynchronous notification from the managed device through the agent-side communication management unit, the managed object of the fourth group is notified. The data is transcribed 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 in-package memory of each managed device has a non-transfer area in addition to the above-described transfer area. In the non-transfer area, data to be managed (for example, various types of protection information, initialization information, etc.) to be transferred from the agent to the managed device is stored. In order to reflect the contents of the non-transfer area to the actual data to be managed, a memory transfer unit that transcribes the data to be managed held in the non-transfer area to the current data to be managed of the self-managed device is provided by each memory transfer unit. It is provided in the managed device. Therefore, data can be set from the agent to the managed device by setting data in the non-transfer area of the memory in the package. Since the contents of the non-transfer area are not transferred to the memory in the agent, there is no transfer area corresponding to the non-transfer area in the memory in the agent.
Instead, a virtual address in the agent memory corresponding to the address of the non-transfer area is set, and the correspondence between the two is managed in the package information storage unit.

The setting of the data to be managed from the agent to the non-transfer area of the memory in the package is performed by the access processor as needed. The occasional access processing unit may acquire the contents of the non-transfer area or the contents of the transfer area in some cases. That is, when acquiring data from the transfer area and the non-transfer area of the memory in the package of the managed device, the access processing unit notifies the managed device of the access target range through the agent-side communication management unit. When the data in the range is acquired collectively and the data is set in the non-transfer area of the memory in the package, the managed device is notified 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 that a data acquisition request source or a data setting request source that requests data acquisition or setting by occasional access can make a request by designating a memory address in the agent without being conscious of the memory address in the package. For this purpose, 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 area, and in the in-package memory of each managed device, The association between the address of the non-transfer area and the corresponding virtual memory address in the agent is maintained. When a range is input, the target range of the memory in the agent is converted into the target range of the memory in the corresponding package, the corresponding managed device is notified, and the data within 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 memory in the agent, and When constant data is input, the target range of the memory in the agent is converted to the target range of the memory in the corresponding package, and the corresponding managed device is notified together with the setting data, and the setting data is collectively stored in the range. Set.

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

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 logical communication address is used for the physical communication address and the number of the managed device. The corresponding logical communication address has not been 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 managed device and the physical communication address at the time of initialization of the managed device. The department is
Assign logical communication addresses. This numbering is performed from within the logical communication address group according to the notified type of the managed device. The numbered logical communication address is notified to the managed device-side communication management unit, and the correspondence between the numbered logical communication address and the number of the managed device is held on the agent side, and is required for communication. It is used for associating the number of the managed device with the logical communication address.

Similarly, in the case of a newly added managed device, the memory arrangement of the memory in the package is not managed on the agent side, so that the polling process, the occasional access process, and the asynchronous notification are hindered. Occurs. Therefore, according to the present invention, the communication management unit of the managed device notifies the agent of package information including memory arrangement information of managed data in the memory in the package of the managed device at the time of initialization of the 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]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, in one embodiment of the network management apparatus according to the present invention, an agent 1 and a plurality of main signal packages 109 which are managed apparatuses are connected to a transmission line 112.
Interconnected through Here, the agent 1 is located between the manager, which is a management device (not shown), and the main signal system package 109, and functions as a management proxy device that performs OSI network management.

Each main signal system package 109 is provided with an LS which actually performs communication processing and the like in an exchange and various transmission devices.
I is a board on which I and the like are mounted, is inserted into a slot of the housing of the device, and is connected to a board constituting the agent 1 by a transmission line 112 in the device. Each of these main signal system packages 109 includes a memory 111 in a package for holding a copy of data to be managed and a memory 11
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 data to be managed transferred from the main signal system package 109 to the agent 1, and a non-transfer area 205 for storing data to be managed transferred from the agent 1. Having. As 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 in-package memory 111, and the non-transfer area 205 of the in-package memory 111 is transferred. The latest management target data transferred from the agent 1 to the current management target data of the own management device is transcribed. A device that accesses the in-package memory 111 performs exclusive control on the memory and obtains an exclusive right before accessing the memory.

On the other hand, the agent 1 stores the contents of the transfer area 211 of the in-package memory 111 of each main signal system package 109 in the agent memory 1.
02 and the communication management unit 107 connected to the transmission path 112
A polling processing unit 104 that autonomously executes a polling process on the main signal system package 109, and a random access processing unit 101 that performs an occasional access process on the main signal system package 109 according to an external command and returns the result to the outside And the main signal system package 109
Event processing unit 106 that processes asynchronous notifications from
And the polling processing unit 104 and the asynchronous event processing unit 1
Event notifying unit 10 which converts the event notified from 06 into an agent command and notifies an event receiving unit (not shown)
5, a package information storage unit 103 for holding various management information necessary for polling processing and occasional access processing for the main signal system package 109, a polling processing unit 104, an occasional access processing unit 101, and an asynchronous event processing unit 106. And an address conversion unit 108 to be used. The memory 10 in the agent
2 accesses the memory after performing exclusive control on the memory and obtaining an exclusive right.

FIG. 2A shows the main signal system package 109.
FIG. 4 is a diagram showing an example of a data arrangement in a package memory 111 in FIG. In all the main signal system packages 109, copies of the management target data 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 data to be managed have the same communication method with the agent 1 and the same processing in the agent 1 are grouped together, and each group is continuously arranged on the memory 111 in the package.

In the present embodiment, the data to be managed is
Into two groups. The first group is a group of management target data acquired by polling from the agent 1 and directly transferred to the in-agent memory 102. In FIG. 2A, the data stored in the area 201 in the transfer area 211 is the first group. Belong to this group. The second group is a group of data to be managed which is obtained by polling from the agent 1 and is compared with the existing value of the transfer destination of the memory 102 in the agent. In FIG. The stored data belongs to this group. The third group is a group of data to be managed, which is obtained by polling from the agent 1 and whose intersection with a preset threshold is determined, and is stored in the area 203 in the transfer area 211 in FIG. Data belongs to this group. The fourth group is a group of data to be managed which is asynchronously transferred from the main signal system package 109 to the agent 1 when the value changes, and is stored in the area 204 in the transfer area 211 in FIG. Data belongs to this group. Fifth Group The fifth group is a group of managed data that is accessed by the agent 1 but has no storage area corresponding to the memory 102 in the agent. In FIG. 2A, data stored in the area 205 belongs to this group. .

The regions 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, and D, and attributes A1, A2, A3, and A belonging to managed object instance A.
4, A5, A6, A7, A8, and A9. If the attributes A1 and A2 are data belonging to the first group, on the area 201, reference numerals 206 and 20 in FIG.
As shown in FIG. 7, A1 and A2 are arranged continuously. 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. I do.

FIG. 15 shows a specific example of data to be managed stored in the in-package memory 111. In this example, there are the following nine types of management target data. Different attribute information 1501 for each main signal system package.
For example, terminal point information. Different state information 1502 for each main signal system package. For example, operation state information. Different performance information 1503 for each main signal system package. For example, it is an error rate. Alarm 1504 common to each main signal system package. For example, it is failure information of the main signal memory. Different alarms 1505 for each main signal system package. For example, communication failure information. Attribute information 1506 common to each main signal system package. For example, 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, line protection information. Provisioning information 1509 different for each main signal system package. For example, it is initialization information of a main signal system package.

In the data shown in FIG.
01 is classified as information acquired by polling by the agent 1 and transferred as it is to the memory 102 in the agent. State information 1502 is classified into information acquired by polling by the agent and compared with existing values existing in the memory 102 in the agent. , Performance information 15
03 is classified into information acquired by polling by the agent 1 and compared with a predetermined threshold, alarms 1504 and 1505 are classified into information notified from the main signal system package 109 as asynchronous notification, attribute information 1506, and 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
An area where data 504 and 1505 is stored is a transfer area 211 which is transferred to the memory 102 in the agent, and an area where data 1506, 1507, 1508 and 1509 is stored is a non-transfer area which is not transferred to the memory 102 in the agent. Become.

FIG. 2B shows the memory 102 in the agent.
4 shows a correspondence relationship between the memory and the package memory 111. As shown in the figure, on the in-agent memory 102, areas for transferring data of 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 an area corresponding to the non-transferred area 205 of each in-package memory 111 is continuously taken on this address space ON.

Next, as shown in FIG. 3, the package information storage unit 103 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 serving as a root of a table included in the package information storage unit 103.
One exists in the package information storage unit 103. One row of the package management table 301 corresponds to one of the main signal packages 109 managed by the agent 1, and one row includes the following six elements. The number (slot) 302 of the main signal system package 109 The address (MIBad) 303 of the memory 102 in the agent corresponding to the start address of the transfer area 211 of the memory 111 in the package The start address of the non-transfer area 205 of the memory 111 in the package 111 Address (ONad) 304 in the in-agent memory 102 to be polled Polling availability flag (OnOff) 30 indicating whether or not the main signal system package is subject to polling
5 Pointer to threshold information table 316 (THptr) 306 Pointer to corresponding row 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 area 201 of package memory 111 Start address (SegSc) 310 of area 202 of package memory 111 Start address (SegTh) 311 of area 203 of package memory 111 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 state length table 321 (STptr) 315 Of these, SegNs 309 is in-package memory 11
Of the information stored in the memory 10 in the agent.
2 also has the role of pointing to the start address of the transfer area 211 which is the area to be transcribed to 2.

The threshold information table 316 is a table for storing threshold information for data in the area 203 to be subjected to the threshold test of the in-package memory 111, and is attached to each main signal system package 109 one by one. In this threshold information table 316, one row is composed of the following four items, and one row corresponds to one piece of management target data to be compared with one threshold. 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 relationship, and there are two upper and lower threshold values because the threshold values have hysteresis. That is, state320
If the previous magnitude relationship is “above” indicating that the previous magnitude relationship is above the threshold, the lower threshold 3
If 19 is used, and conversely, if the previous magnitude relationship is “below” indicating that the previous magnitude relationship is below the threshold, the upper threshold 318 is used in the current threshold determination.

The state length table 321 is a table for storing length information for data in the area 202 to be subjected to the state change inspection of the in-package memory 111, and stores the same type of main signal system package. One is attached. In the state length table 321, the data length of the management target data for which the state change is to be detected is stored in order from the head management target data, and the last 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 memory 111 in the package are converted into the address of the memory 102 in the agent. (2) Conversely, the address of the in-agent memory 102 is converted into the main signal system package number and the address of the in-package memory 111. Hereinafter, the operation of the address conversion unit 108 in each case will be described.

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 with reference to the flow chart of FIG. 4 showing an example of the conversion procedure.

When inputting 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 in the package management table 301 to obtain the main signal system package. The line with the number i is searched for, the corresponding line of the package address table 308 is accessed via the pointer POLptr 307 described in the line, and the SegOn 31 of that line is accessed.
The start address O of the non-transfer area 205 of the corresponding in-package memory 111 is obtained from the third column (402). next,
This O is compared with the input 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. For this reason, the address conversion unit 108 sets the SegNs 309 in the currently focused row of the package address table 308.
Of the transfer area 211 is obtained from the column (40).
4). Also, MIBad 303 of 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). T is the head address of the transfer area 211 of the in-package memory 111 of the main signal system package (i), and the address corresponds to the address Ai of the in-agent memory 102. The corresponding memory address in the agent is Ai +
It is calculated by the formula β-T and returned to the requestor (40
6).

On the other hand, when β ≧ O, the input memory address β in the package is an address in the non-transfer area 205. For this reason, the address conversion unit 108 obtains the non-transfer area corresponding start address Bi from the column of the Onad 304 in the row corresponding to the main signal system package number i in the package management table 301, that is, the non-transfer area 2 of the in-package memory 111.
In-agent memory 1 corresponding to the start address of 05
A virtual address Bi at 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, but in the agent 1, FIG. As described in), virtual memory address space in the agent is ON.
Is set, and the virtual address Bi corresponds to O. Therefore, the address conversion unit 108 obtains the memory address in the agent corresponding to the memory address β in the package using a calculation formula of Bi + β−O, and returns it to the request source (408).

For example, considering an example in which the input of the main signal system package number i and the memory address "10022" in the package is converted into the memory address in the agent, the contents of the package information storage unit 103 are as shown in FIG. The address conversion unit 108 performs the following operation. First, the address conversion unit 108 checks the main signal system package number slot 30 in the package management table 301
2 is searched for a line 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 POLptr 307 to the package address table 308 of that row. In the case of FIG. 3, the value is “10030”. Then, the input memory address “1002” in the package is input.
By comparing “2” with “10030”, the input memory address in the package is determined to be an address within the range of the transfer area 211 since the input memory address in the package is smaller. SegN indicating the transfer area start address of the package address table 308
The address “10000” is obtained from s309, and from these data, the corresponding memory address in the agent is “220 + 10022-10000” = “242”
Is determined.

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

When the address conversion unit 108 receives the memory address α in the agent from the source of the address conversion request (501), the address conversion unit 108 determines whether the memory address α in the agent corresponds to the transfer area 211 of the memory 111 in the main signal system package. In order to determine whether or not it corresponds to the non-transfer area 205, the non-transfer area corresponding address B 1 from ONad of the row of the main signal system package number 1 in the package management table 301, that is, the top of the non-transfer area 205 of the in-package memory 111. The virtual address B1 in the in-agent memory 102 corresponding to the address is obtained (5
02), and is compared with α (503). Here, the comparison with the non-transfer area corresponding address B1 of the main signal system package number 1 is performed for 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 having the main signal system package number 1 corresponds to the youngest virtual address (O in the package management table 301 in FIG. 3).
Nad 304).

As a result of the comparison, if α <B1, since the memory address α in the agent corresponds to the transfer area 211 of the memory 111 in the package, the following processing is performed. First, the address conversion unit 108 searches the first row for the transfer area corresponding address MIBad303 in the package management table 301, and finds Ai ≦ α <A (i + 1) (where Ai ≦ α <A (i + 1)).
Is the retrieved MIBad value) to obtain a 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 No. 7
The start address T of the transfer area 211 is obtained from Ns309 (505). Since the memory address in the package of the main signal system package (i) corresponding to the address Ai of the memory 102 in the agent is T, the memory address in the package corresponding to the address α is the main signal system package in the memory 102 in the agent. By adding T to the address difference α-Ai between the transfer area corresponding address Ai and the input address α in (i), it is calculated as α-Ai + T and returned to the request source (506).

When α ≧ B1, the memory address α in the agent is stored in one of the memory 11 in the package.
Since it corresponds to one non-transfer area 205, the following operation is performed. First, the address conversion unit 108 executes the package management table 3
The non-transfer area corresponding address ONad 304 of 01 is searched from the first row, i is searched for Bi ≦ α <B (i + 1) (where B is the value of the searched ONad), and the main signal system package number i is obtained. (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
13 to obtain the start address O of the non-transfer area 205 (5
08). Since the memory address in the package of the main signal package (i) corresponding to the virtual address Bi in the agent is O, the memory address in the package corresponding to the address α is the non-transfer of the main signal 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 of “271” into a main signal system package number and a memory address in a package, if the contents of the package information storage unit 103 are the contents shown in FIG. 3, the address conversion unit 108 First, the address conversion unit 108 executes the package management table 3.
01 non-transfer area corresponding address ONad30 in the first row
4 to obtain an address "1000". Next, the address conversion unit 108 compares the magnitude relationship between the input address “1271” and “1000”. Since the input address “1272” is larger, the input address is within the range of the non-transfer area 205. Address. For this reason, the address conversion unit 108
Of the non-transfer area corresponding address ONad304. 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 address conversion unit 108 follows the pointer POLptr 307 to the package address table 308 of the row of the main signal system package number i + 1, and returns the package address table 308. Is accessed, and the non-transfer area start address SegOn3 of the main signal system package is accessed.
"10030" which is the value of 13 is obtained. As a result, the memory address in the package is changed to “1271-1270 +
10030 "=" 10031 ".

Next, a description will be given of a polling process performed by the agent 1 to the main signal system package 109 with reference to FIG.

The polling process is performed by the polling processing unit 104.
Performed by The polling processing unit 104 is periodically started by an internal timer, and is executed by 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 obtain management target data from the main signal system package 109 to be polled. 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 threshold crossing is detected. Tell that. The schematic operation of the polling processing unit 104 is as described above, but refer to FIG. 3 and the block diagram of FIG. 6 in which the block diagram of FIG. The detailed operation will be described below.

As shown in FIG. 6, the polling processing section 104 has a timer 611, a polling management section 605, a state comparison section 607, and a threshold value comparison section 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
With reference to the polling enable / disable flag OnOff 305 corresponding to each main signal system package stored in the main signal system package, the polling of the in-package memory 111 is sequentially performed 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 as an example the polling for the main signal system package of the main signal system package number 1 whose OnOff 305 is 1.

First, the polling management unit 605 determines the package management table 301 corresponding to the main signal system package number 1.
Tracing the pointer POLptr307 in the row of
SegN in the corresponding row of the package address table 308
s309 and SegEv312 are acquired. And Se
The area from the address described in gNs to the address immediately before the address described in SegEv is defined as a polling area. That is, the memory address “1” in the package
The area from "0000" to the address "10019" is a polling area, which includes an area 201 for direct transcription processing and an area 2 for comparison processing in FIG.
02 and an area 203 to be determined to be a threshold crossing.

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

The communication management unit 107 has a communication management means 606 and a buffer 609 as shown in FIG.
Is converted into a logical communication address that specifies the main signal system package in the communication path, and the polling area is transmitted to the communication management unit 110 of the corresponding main signal system package 109 by specifying the logical communication address.

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

Receiving the data, the communication management means 606 stores the data in the buffer 609 and notifies the polling management section 605 that the data acquisition from the main signal system package of the main signal system package number 1 has been completed. .

Thereafter, the polling management unit 605 performs the following three operations on the acquired data stored in the buffer 609.
Two processes, namely, a direct transcription process, a comparison process, and a threshold crossing determination process.

(1) Direct Transcription Processing The polling management unit 605 stores the package address table 30
8, SegNs309 and SegSc3 in the row corresponding to the main signal system package currently subject to polling
10 and 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 system package currently subject to polling and the SegNs, obtains the corresponding address of the memory 102 in the agent, and The data length to be transcribed from the beginning of 609 is transferred to the corresponding location in the memory 102 in the agent.

In the example of specific numerical values in 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”.
5 ”and SegNs are“ 10000 ”, so the data length to be directly transcribed is 5. Also, the address conversion unit 1
The address conversion result returned from 08 is “100”. Accordingly, assuming that the head of the polled data in the buffer 609 corresponds to the address “0” in the buffer, the data in the area from the address “0” to “4” in the buffer is stored in 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 determines the pointer STptr 315 of the row corresponding to the main signal system package to be polled from the package address table 308.
As a result, the start address of the state length table 321 in which the data length of each data necessary for comparing the state changes is obtained. Then, in order to compare the memory 102 in the agent with the data in the buffer, the state comparison unit 607
Then, the start address of the state length table 321 and the SegNs 309 and SegSc 310 relating to the polled main signal system package are sent.

The state comparison unit 607 reads the specified state length table 321 from the head, and stores the contents of the buffer 609 and the memory 102 in the agent by the data length specified in each row of the state length table 321. The operation of comparison is repeated, and the value written in the state length table 321 becomes “0”.
When the data of (1) is obtained, the operation is ended. Here, if the compared two data are different, the state comparison unit 607 writes the data obtained from the buffer 609 to the corresponding address of the agent memory 102, and the event notification unit 105 compares the data in the agent memory. 1
02 and the value stored at the address before writing. Here, the value stored at the address before the writing is notified because the value after the writing can be known by referring to the memory 102 in the agent, but the previous value has been erased by the writing. is there.

In the case of the main signal system package of the main signal system package number 1, the state comparison is as follows. Looking at the specific numerical values in FIG.
gNs309 is “10000” and SegSc is “100”.
05 ". Since SegNs corresponds to the address" 0 "in the buffer 609, SegSc corresponds to the address" 5 "in the buffer, which is the head address of the state change detection data. A comparison process is performed by reading the length table 321 one line at a time.First, the first line of the state length table 321 is accessed to obtain the data length 1 described therein, and the data of the length 1 is stored in the buffer 6.
09 and the in-agent memory 102. From the buffer 609, data of length 1 is obtained from the leading address "5" of the state change detection data obtained earlier.
From the in-agent memory 102, the address translation unit 6
04, the main signal system package number 1 and the in-package memory address "10005" are input to obtain the in-agent address "105", and the data of length 1 is obtained from the address "105" of the in-agent memory 102. . Agent memory address "105"
6 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 in FIG. 6, and the first data having the data length 1 is also “10”. . Therefore, since both are equal, writing to the in-agent memory 102 or notification to the event notification unit 610 is not performed. Next, the next line of the state length table 321 is read, and the data having the data length 2 described therein is acquired from the buffer 609 and the memory 102 in the agent. The data of data length 2 after the memory address 107 in the agent is “4”,
"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 after the address 107 of the in-agent memory 102, and stores the address 10 of the in-agent memory 102 in the event notification unit 610.
7 and the values “4” and “4” previously stored in the in-agent memory 102 are input to the event notification unit 105.
The remaining rows of the state length table 321 are processed similarly.

(3) Threshold Crossing Determination Processing Next, the polling management unit 605 determines, from the package address table 308, the SegNs 309 and Seg of the row corresponding to the main signal system package to be polled at present.
Th311 is obtained, and an offset from the head of the in-package memory 111 of the area 203 for performing the threshold crossing detection is obtained from the difference. Then, the polling management unit 60
Numeral 5 is obtained from the pointer THptr307 to the threshold information table of the package management table 301 from the start address of the threshold information table 316 of the main signal system package to be polled, and stores data for performing threshold crossing detection in the buffer 609. Address of the current area (above offset)
Along with the threshold comparison unit 608.

The threshold comparing unit 608 accesses the threshold information table 316 indicated by THprt 307, reads the contents line by line, and performs the threshold crossing determination operation until the last line of the threshold information table 316 is processed. to continue. The specific operation is as follows.

First, data of the data length length 317 written on the line read from the threshold information table 316 is read from the buffer 609. When processing the first row of the threshold information table 316, the data read from the buffer 609 is based on the start address of the area in the buffer 609 input from the polling management unit 605 in which the data for threshold crossing detection is stored. Otherwise, the start point is immediately after the address immediately before the processing target. Next, when the value of the state 320 of this row indicates “up”, data of the same length read from the buffer 609 is compared with the lower threshold value LowT319. Also, s
When 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 the result of the comparison indicates that the magnitude relation has changed from the previous one, the address of the data to be compared in the agent memory 102 and the new magnitude relation are notified to the event notification unit 610. Further, a new magnitude relationship is set in the state 320.

Next, the operation of the agent 1 when there is an asynchronous notification from the main signal package 109 will be described with reference to FIG.

The asynchronous notification from the main signal system package 109 is sent to the communication management unit 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,
Obtains the address of the corresponding memory 102 in the agent using the address translator 108, transcribes the data to be managed in the asynchronous notification sent to the corresponding address of the memory 102 in the agent, and then notifies the event notifier 105. Tell the contents of. The schematic operation regarding the asynchronous notification is as described above. Hereinafter, FIG. 6 and the asynchronous event processing unit 10
The detailed operation will be described with reference to the flowchart of FIG.

An event which is urgently required for notification such as an alarm generated in the main signal system package 109 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 to identify the event. A method is used in which the address of the in-package memory 111 that caused the error and its current value are transferred.

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

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

The event notifying unit 105 transmits these two contents to the event receiving unit 612, and the event receiving unit 612 performs asynchronous processing in the agent 1 based on the transmitted contents. As the asynchronous processing, an operation of asynchronously sending a message to a manager (not shown) and a recording of “asynchronous notification has occurred” in the agent 1 may be performed.

Next, referring to FIG. 1, a description will be given of a random access process performed from the agent 1 to the main signal system package 109. The occasional access process is executed by the occasional access processing unit 101 when an occasional access request is issued from a manager or the like (not shown) by a command specifying a target range. The occasional access processing unit 101 converts the address of the in-agent memory 111 into the corresponding main signal system package number and the address of the in-package memory using the address conversion unit 108 for the target range. Next, setting data is sent to the main signal system package of the main signal system package number via the communication management unit 107 at the time of setting the target range of the in-package memory, and the return result is obtained 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. Hereinafter, FIG. 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 comprises an occasional access execution section 805 and an occasional access instruction section 807 as shown in FIG.
Acquisition of the data to be managed from No. 9 and setting of the data to be managed to the main signal system package 109 are performed as needed.
Hereinafter, the acquisition of the value and the setting of the value will be described in this order.

(1) Acquisition of Value from Memory in Package of Main Signal System Package The occasional access command unit 807 specifies the data to be acquired to the occasional access execution unit 805 upon receiving a data setting command from the outside. In the agent memory 10 corresponding to the start address of the area of the in-package memory 111 of the main signal system package 109 for acquiring data.
Using the address of No. 2 and the length of the data to be obtained, these are input to the access execution unit 805 as needed (901).
If the data to be obtained is stored in the non-transfer area 205, the address of the memory 102 in the agent cannot be used.
Specify the address corresponding to the non-transfer area described in.

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

The communication management unit 107 sends the memory address in the package 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 section 1 of main signal system package 109
10 acquires the data of the notified data length from the notified address of the in-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 occasional access execution unit 805, and
05 transfers this data to the access command unit 807, and the access command unit 807 outputs the data to the outside (905).

(2) Setting of Values in Package Memory of Main Signal System Package The random access command unit 807 receives a data setting command from the outside,
The address of the memory 102 in the agent corresponding to the start address of the area of the memory in the package of the main signal package 109 for setting data and the data to be set are input (1001). Data setting is in non-transfer area 20
5 only. For this reason, 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 specified.

The random access execution unit 805 converts the input address into a main signal system package number and a memory address in the package by using the address conversion unit 804, and writes the converted address and the write command input from the random access command unit 807. Is notified to the communication management unit 107 (1002).

The communication management unit 107 sends the memory address in the package 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 section 1 of main signal system package 109
10 writes the data transferred from the agent 1 into an area of the in-package memory 111 starting from the notified in-package memory address, and notifies the result (1004). That is, if the writing fails for any reason, the communication management unit 10
7 is notified that the writing has failed, and if the writing has succeeded, the communication management unit 107 is notified that the writing has succeeded.

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. Then, the random access execution unit 805 receives this notification and notifies the random access command unit 807 of the success / failure of setting the value to the main signal system package, and the random access command unit 807 outputs this to the outside ( 1005).

Next, the automatic numbering of logical communication addresses in the communication management unit 107 and its management function provided in the present embodiment will be described with reference to the flowchart of FIG. 11 and FIG. This will be described with reference to a block diagram.

In the transmission path, the main signal system package 109
As a communication address for designating, a physical communication address pre-allocated to the main signal system package 109 and a logical communication capable of performing one-to-one correspondence with the physical communication address in the transmission path. There are two types, address and 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 package 109
There are a slot number, an IP address, and the like in which is inserted.

The correspondence between each 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. For example, in a network device that can change the configuration, 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 also does not know its own logical communication address. Therefore, the communication management unit 107 of the present embodiment solves this problem as follows.

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

As shown in FIG. 12, an address conversion unit 1203 and a logical address naming unit 1204 are provided in the communication management unit 107 of the agent 1. When receiving the address assignment request transmitted by the main signal package 109 to the transmission path, the logical address naming unit 1204 assigns the logical communication address corresponding to the physical communication address of the main signal package indicated by the argument in the address assignment request. Numbering is performed (1102). The numbering of the logical communication addresses corresponding to the physical communication addresses in the agent 1 is performed according to the policy that the logical communication addresses belonging to the same group are numbered for the physical communication addresses of the main signal system packages belonging to the same type of 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 which has issued the address assignment request, and the main signal system package number of the current main signal system package 109 and the logical communication address. Are stored in the address conversion unit 1203 (1103). Since the main signal system package 109 does not know its own logical communication address after issuing the address allocation request, the above notification is broadcasted as a set of the physical communication address and the logical communication address. It detects its own physical communication address and receives the logical communication address. Upon receiving the logical communication address determined from the agent 1, the communication management unit 110 of the main signal system package 109 that has issued the address assignment request stores the logical communication address, and transmits it when performing communication from the next time. It sends its own logical communication address as an identifier along with the data. On the other hand, the communication management unit 107 uses the correspondence between the main signal system package number stored in the address conversion unit 1203 and the logical communication address to access the main signal of the communication partner provided from the access processing unit 101 and the polling processing unit 104 as needed. The communication is performed by acquiring the logical communication address corresponding to the system package number.

Next, the automatic setting function of the package information provided in 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 a new main signal system package 109 as described above, the main signal system package information such as the data structure and the memory arrangement of the memory 111 in the agent of the main signal system package is unknown in the agent 1. Therefore, it is not possible to perform a management operation for the main signal system package such as polling. Therefore, in order to obtain the main signal system package information, in the present embodiment, the following (A)
Or, the processing of (B) is executed.

(A) The communication management unit 107 allocates a logical communication address as described with reference to FIG.
1), the communication management unit 107
09 in response to a package information transmission request (13
02). When receiving the package information transmission request, the main signal system package 109 receives the package information transmission request.
9 is transmitted to the communication management unit 107 (1303). Here, the package information to be transmitted includes the following information.

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

The communication management unit 107 generates management information on the main signal system package in the package information storage unit 103 based on the received main signal system package information (1304). That is, a new row is added to the package management table 301, the main signal system package number is made to correspond to the slot 302, and the in-package memory 102 is made to correspond to MIBad with the start address of the transfer area of the main signal system package.
Is set in ONad 304 as a virtual address in the package that corresponds to the head address of the non-transfer area of the main signal system package, and polling availability information is set in OnOff 305. Further, a threshold information table 316 is created and added from the threshold information, and the start address is set in the THptr 306 of the added row of the package management table 301. Further, if there is no row of the package address table 308 corresponding to the main signal type package type,
A new line is added to the package address table 308 according to the received package address information, and a state length table 321 is created and added according to the state length data, and the start address is set as STptr in the additional line of the package address table 308. Set to.

(B) When the main signal system package 109 is initialized,
At the same time as transmitting the address assignment request including the own signal system package type, the main signal system package number, and the physical communication address of the own signal system package, the data structure and the memory arrangement of the in-package memory 111 of the own signal system package 109 are described above. The main signal system package information transmitted to the transmission path. Communication management unit 1 of agent 1
07 receives these (1401), and allocates a logical communication address to the received address allocation request in the same manner as described above (1402). Further, based on the received main signal system package information, management information on the main signal system package is generated in the package information storage unit 103 (1403).

Next, the main signal system package 1 shown in FIG.
An example on the 09 side will be described.

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

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 therein a flag indicating whether access is possible and the name of a device waiting for access to the in-package memory 111. And This exclusive control unit 172 is a device (110,
174, 176) 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 allow the device to access the in-package memory 111. To give permission. When an access request to the in-package memory 111 is received from another device while the flag is “access impossible”, 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 accessing the in-package memory 111 reports that the access has been completed to the exclusive control unit 172 when the access is completed. 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 directly representing the state of the package, such as terminals of LSI elements constituting the main signal system package 109. The table 175 is a table for associating each element of the main signal system package data 177 with a position in the in-package memory 111, and its contents are registered in advance by a 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, applies exclusive control to the in-package memory 111 by the exclusive control unit 172, and The main signal system package data 177 corresponding to the transfer area 211 is transferred. The package data transfer unit 174 compares the data of the fourth group such as the alarm in the transfer area 211 with an existing value when transferring the data. If the data has changed, the package data transfer unit 174 manages the address of the data. Notify section 110.

When the communication management unit 110 receives an instruction from the agent 1 and writes data into the in-package memory 111, the following procedure is taken. First, the communication management unit 110 performs exclusive control on the in-package memory 111 by the exclusive control unit 172, and then controls the memory transfer unit 176
The start address and length of the in-package memory 111 to be written are notified, and then the in-package memory 1 is notified.
11 is written. The memory transfer unit 176 performs exclusive control on the in-package memory 111 by the exclusion control unit 172, reads the contents of the address of the in-package memory 111 to which the writing was notified from the communication management unit 111, and refers to the table 175. Then, the main signal system package data 177 to be transcribed is specified and written to the corresponding location. 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 reading from the in-package memory 111 in response to an instruction from the in-package memory 111, first, the exclusive control unit 172 performs exclusive control on the in-package memory 111, and then the address range specified by the agent 1 in the in-package memory 111. Is read. If the address is notified from the package data transfer unit 174 because the management target data of the fourth group such as the alarm data in the transfer area 211 has changed, the exclusive control unit 172 controls the memory in the package. Exclusive control is performed on the data 111, then the data at 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 first to seventh aspects, by specifying the range of the memory in the package, a large number of data to be managed can be collectively acquired by one polling.
Efficient and high-speed data acquisition becomes possible. In addition, the latest data is reflected in the memory in the package in parallel on each managed device side, and the data collection time does not intervene at the time of polling unlike the prior art, so that faster data acquisition is performed. Can be realized.

According to the configuration of the second to fifth aspects, in one polling, the management target data to be directly transferred to the memory in the agent, the management target data to be compared with the existing value, and the comparison with a predetermined threshold value Batch acquisition and batch processing of management target data of a plurality of groups such as management target data can be performed.

According to the fourth, fifth, and tenth aspects,
The managed device 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, a large number of data to be managed can be obtained and set with one access at any time, and efficient and high-speed access processing can be performed. become. Also, since the latest data is reflected in the transfer area in the package memory and the management target data in the non-transfer area is reflected in the self-managed device, data is collected at any time access as in the conventional technology. Time and data setting time do not intervene, and a higher-speed access process can be realized at any time.

According to the configuration of the ninth aspect, the data acquisition request source and the data setting request source requesting the access processing at any time do not need to be aware of the memory address in the package of each managed device. An access process can be requested at any time.

According to the configuration of the sixth and eleventh aspects, when a new managed device is added, the logical communication address required for communication with the managed device can be automatically numbered and managed. It is possible to flexibly cope with the addition of a managed device.

According to the configuration of the seventh and twelfth aspects, it is possible to automatically generate management information necessary for polling of the managed device, occasional access, and the like when a new managed device is added. It is possible to flexibly cope with addition of a managed device.

[Brief description of the drawings]

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

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

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

FIG. 4 is a flowchart showing an example of a procedure for converting a main signal system package number and a memory address in a package into a memory address in an agent.

FIG. 5 is a flowchart illustrating an example of a procedure for converting a memory address in an agent into a main signal system package number and a memory address in a package.

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

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

FIG. 8 is a block diagram specifically showing an example of an internal configuration of the random access processing unit in the block diagram of FIG. 1;

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

FIG. 10 is a flowchart illustrating an example of a process at the time of data setting by an occasional access process.

FIG. 11 is a flowchart illustrating an example of a logical communication address assignment process.

FIG. 12 is a block diagram more specifically showing an example of an internal configuration of the communication management unit 107 in the block of FIG. 1;

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

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

FIG. 15 is a diagram showing a specific example of a management target data arrangement 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 the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Agent 101 ... occasional access processing part 102 ... agent memory 103 ... package information storage part 104 ... polling processing part 105 ... event notification part 106 ... asynchronous event processing part 107 ... communication management part 108 ... address conversion part 109 ... main signal System package 110: communication management unit 112: transmission line 205: non-transfer area 211: transfer area

Claims (12)

(57) [Claims] Claims 1. A management agent for network management
Agent as device and multiple managed devices transmitted
Network management system connected by road
A transfer area in the managed device.And non-transfer areaTo the managed device of the self-managed device
In the package that holds a copy of the data, and the management that is held in the transfer area of the memory in the package
Make sure that the target data is the latest copy
The current management target data is transferred to the memory in the package.
Package data posting sectionHeld in the non-transfer area of the memory in the package
The management target data is the current management target data of the self-managed device.
A memory posting section for posting to  Provided between the memory in the package and the transmission path.
The package within a specified range from the agent.
Access the memory area in the
A managed device side communication management unit for notifying the agent of the agent, the agent, the agent side communication management unit connected to the transmission line, and each managed device through the agent side communication management unit.
Is the range to be polled for the memory in the package.
Port that collects polling target data by notifying
Ring processing unit, The data is stored in the non-transfer area of the memory in the package of the managed device.
When setting data, set the agent-side communication
The range of access to the managed device through
Notification of data to be set and data
With the occasional access processing unit that is set collectively It is characterized by having
Network management device. 2. A network management system in which an agent serving 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 has a self-managed device in a transfer area. A memory in the package that continuously holds copies of the data to be managed of the first group, the second group, and the third group, and the data to be managed held in the transfer area of the memory in the package 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 that is provided between the package memory and the transmission path and has a range specified by the agent. Managed device side communication that accesses the memory area in the package and notifies the result to the agent An agent-side communication management unit connected to the transmission line, an event notification unit that notifies an event that has occurred, and a content of a transfer area of a memory in a package of each managed device. And the addresses of the areas in the package memory of each managed device in which the data to be managed of the first group, the second group, and the third group are stored. A package information storage unit for associating and holding an address of an area of the memory in the agent to which the data to be managed of the second and third groups is to be transcribed; and a 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 area where the data is stored is obtained from the package information storage unit, and the managed device is notified to the managed device to collectively obtain the data to be managed of the first group, the second group, and the third group.
The data to be managed in the group is transcribed as it is in the corresponding area of the memory in the agent, and the data to be managed in the second group is compared with the existing value stored in the memory in the agent. And notify the event notification unit,
The data to be managed of the group includes a polling processing unit that posts to the memory in the agent and notifies the event notification unit when a threshold crossing is detected in comparison with a predetermined threshold. 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 a memory address in a package of the managed device into a memory address in an agent and vice versa. 3. The network management device according to claim 2, further comprising an address translation unit for performing translation. 4. A network management system in which an agent serving 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 management area in a transfer area. A memory in the package that continuously holds copies of the data to be managed in the first group, the second group, the third group, and the fourth group, and the data to be managed that is held in the transfer area of the memory in the package is the latest. A package data transfer unit that transfers the current management target data in the self-managed device to the in-package memory so as to be a copy, provided between the in-package memory and the transmission line, and designated by the agent. To access the memory area in the package within the specified range and notify the result to the agent A managed device that, when there is a change in the managed data of the fourth group of the memory in the package, notifies the agent of the changed managed data of the fourth group and the memory address in the package by asynchronous notification. An agent-side communication management unit connected to the transmission line; an event notification unit that notifies an event that has occurred; and a transfer area of a memory in a package of each managed device. And an address of an area in the package memory of each managed device in which data to be managed of the first group, the second group, the third group, and the fourth group are stored; Data to be managed of the first group, the second group, the third group, and the fourth group should be transcribed. A package information storage unit for storing the addresses of the areas of the memory in the agent in association with each other; a first group, a second group, and a third group of the memory in the package for each managed device through the agent-side communication management unit The range of the area in which the data to be managed is stored is obtained from the package information storage unit, and the managed device is notified to collectively obtain the data to be managed in the first, second, and third groups. 1
The data to be managed in the group is transcribed as it is in the corresponding area of the memory in the agent, and the data to be managed in the second group is compared with the existing value stored in the memory in the agent. And notify the event notification unit,
A polling processing unit that posts the management target data of the group to the memory in the agent and notifies the event notification unit when a threshold crossing is detected by comparing with a predetermined threshold; and the agent-side communication management. When the managed device of the fourth group and its memory address in the package are notified by the asynchronous notification from the managed device through the unit, the managed data of the fourth group is corresponded to the memory address in the package. A network management device comprising: an asynchronous event processing unit that transcribes 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, and refers to the contents of the package information storage unit to change the memory address in the package of the managed device to the memory address in the agent. 5. The network management apparatus according to claim 4, further comprising an address conversion unit that performs the conversion of (1) and the reverse. 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 managed device and the physical communication address when the managed device is initialized. The agent-side communication management unit assigns a logical communication address corresponding to the physical communication address from the logical communication address group according to the notified type of the managed device to the managed device-side communication management unit. Send it,
6. The network management device according to claim 2, wherein the network management device has a configuration for maintaining a correspondence relationship between the numbered logical communication address and the number of the managed device. 7. The managed device side communication management unit, when the self-managed device is initialized, transfers package information including memory arrangement information of data to be managed of each group in a memory in a package of the self-managed device to the agent. Wherein the agent-side communication management unit generates new management information corresponding to the managed device in the package information storage unit based on the package information. Item 7. The network management device according to Item 6. 8. A network management system in which an agent serving 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 its own transfer area and non-transfer area. A memory in the package that holds a copy of the data to be managed of the managed device, and a current management object in the self-managed device so that the data to be managed held in the transfer area of the memory in the package is the latest copy. and package data transcription unit to post the data to the package memory, a memory transcription unit to post managed data held in the non-transfer area of the package in memory the current object data of the own managed device, The package is provided between the memory in the package and the transmission path, and has a range specified by the agent. A managed device-side communication management unit that accesses an area of the in-car memory and notifies the agent of the result, and wherein the agent includes an agent-side communication management unit connected to the transmission path, and the managed device. When acquiring data from the transfer area and the non-transfer area of the in-package memory, 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 a non-transfer area of the memory in the package, the agent-side communication management unit notifies the managed device of a range to be accessed and data to be set, and collectively stores data in the range. A network management device, comprising: a random access processing unit for setting. 9. A network management system in which an agent serving 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 has its own transfer area and non-transfer area. A memory in the package that holds a copy of the data to be managed of the managed device, and a current management object in the self-managed device so that the data to be managed held in the transfer area of the memory in the package is the latest copy. A package data transfer unit that transfers data to the in-package memory; a memory transfer unit that transfers the management target data held in the non-transfer area of the in-package memory to the current management target data of its own management device; The package is provided between the memory in the package and the transmission path, and is in a range designated by the agent. A managed device-side communication management unit that accesses an area of the in-memory memory and notifies a result of the access to the agent, wherein the agent includes an agent-side communication management unit connected to the transmission path; A memory in the agent to which the content of the transfer area of the memory in the package of the management device is transcribed, and an association between an address of the transfer area in the memory in the package of each managed device and a corresponding address of the area of the memory in the agent, A package information storage unit for storing the association between the address of the non-transfer area in the package memory of each of the managed devices and the corresponding virtual memory address in the agent; If the target range of the management device and the memory in the agent is entered, The target range of the in-agent memory is converted into the target range of the corresponding in-package memory, and the corresponding managed device is notified through the agent-side communication management unit to collectively obtain the data in the range, and the data setting request source If the managed device to be set as a data setting target, the target range of the memory in the agent, and the setting data are input, the target range of the memory in the agent is converted into the target range of the corresponding memory in the package, and A random access processing unit for notifying the corresponding managed device together with the setting data through the communication management unit and collectively setting the setting data within the range; and a content used by the random access processing unit and referring to the contents of the package information storage unit. To change the memory address in the agent to the memory address in the package of the managed device. A network management device, comprising: 10. A network management system in which an agent serving as a proxy management device for performing network management and a plurality of managed devices are connected by a transmission path, wherein the managed device has its own transfer area and non-transfer area. A memory in the package that holds a copy of the data to be managed of the managed device, and a current management object in the self-managed device so that the data to be managed held in the transfer area of the memory in the package is the latest copy. A package data transfer unit that transfers data to the in-package memory; a memory transfer unit that transfers the management target data held in the non-transfer area of the in-package memory to the current management target data of its own management device; The package is provided between the memory in the package and the transmission line, and is in a range designated by the agent. Access to the area of the memory in the cage and notify the result to the agent, and when there is a change in the data to be managed that is urgently required to be notified among the data to be managed held in the transfer area of the memory in the package. A managed device-side communication management unit that notifies the agent of the changed management target data and its memory address in the package by asynchronous notification, wherein 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 memory to which the contents of the transfer area of the memory in the package of each managed device are transcribed; and an address of a transfer area in the memory of the package of each managed device And the address of the corresponding area of the memory in the agent, and A package information storage unit that holds a relationship between an address of a non-transfer area in a memory in a package of the management device and a corresponding virtual memory address in the agent; a managed device and an agent from which data is requested by a 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 to the target range of the corresponding internal memory, and the corresponding managed device is notified to the corresponding managed device through the agent-side communication management unit. When the data within the range is collectively acquired and the data setting request source inputs the managed device to be set, the target range of the memory in the agent, and the setting data, the target range of the memory in the agent is corresponded. Converted to the target range of the memory in the package and the agent-side communication management unit An optional access processing unit that notifies the corresponding managed device together with the setting data through the setting data and collectively sets the setting data within the range, and the management target data and the asynchronous notification from the managed device through the agent-side communication management unit. An asynchronous event processing unit that, when the memory address in the package is notified, transfers the management target data to an address of the memory in the agent corresponding to the memory address in the package and notifies the event notification unit; It is used by the occasional access processing unit and the asynchronous event processing unit, and refers to the contents of the package information storage unit to perform conversion from the memory address in the package of the managed device to the memory address in the agent and vice versa. Network management device, comprising: . 11. The communication management unit on the managed device side has a configuration for notifying the communication management unit on the agent side of the type and number of the managed device and the physical communication address when the managed device is initialized. The agent-side communication management unit assigns a logical communication address corresponding to the physical communication address from the logical communication address group according to the notified type of the managed device to the managed device-side communication management unit. Send it,
11. The network management device according to claim 9, wherein the network management device has a configuration for maintaining a correspondence relationship between the numbered logical communication address and the number of the managed device. 12. The managed device side communication management unit notifies the agent of package information including memory arrangement information of managed data in a memory in a package of the managed device when the managed device is initialized. 12. The configuration according to claim 11, wherein the agent-side communication management unit generates new management information corresponding to the managed device in the package information storage unit based on the package information. Network management equipment.