KR0169037B1 - Method of message control in agent of electric communication control network - Google Patents

Abstract

The present invention relates to a message control method for controlling a message for synchronization between a network management message and an internal message in an agent of a telecommunications management network. Operation request message and maintenance transmitted from the management system 10 using a method of performing a processing function, a method of configuring an internal message queue, a method of storing an internal message queue, and a method of using a network management action sequence number of a common management information service message. By processing the operation response message transmitted from the maintenance module 3 in the agent 5, the agent can accurately process the network management operation request of the management system irrespective of the loss or occurrence order of the message. Perform order control or error handling of network management operation messages. There is an effect that can reduce the burden.

Description

Message Control Method in Agent of Telecommunication Management Network

1 is a configuration diagram of a telecommunications management network to which the present invention is applied.

2 is a structural diagram of a message queue.

3 is a flowchart according to the present invention in which an agent processes a network management operation request message sent from a management system.

4 is a flowchart according to the present invention in which an agent processes an action response message sent by a maintenance module.

* Explanation of symbols for main parts of the drawings

1: hardware of synchronous transmission device 5: agent

8: message queue 10: management system

The present invention relates to a message control method for controlling a message for synchronization between a network management message and an internal message in an agent of a telecommunications management network.

A telecommunications management network consists of a management system, an agent that is a managed system, and a data communication network for information exchange between both systems. The management system and the agent perform network management operations by exchanging common management information service messages through a common management information service element (CMISE). This message uses the network management behavior sequence number to synchronize the message between the management system and the agent.

The telecommunications management network, which consists of synchronous transmission devices, consists of a management system, an agent, a common management information service element, a device maintenance module that executes the maintenance functions of the transmission device, and a transmission device. It has a supporting structure.

In such a telecommunications management network, the overall operation and maintenance status of the signals mounted in the synchronous transmission device should be known to the network operation center. To do this, if an error occurs in a communication channel exchanging information with a maintenance module when a network management action is performed by an agent at the request of a management system, an error processing is performed to handle an unprocessed network management message or sequence. Even if there are common management information service messages that could not be obtained, the agent should be able to control the messages so that the management system can receive the response messages.

The present invention devised to meet the above requirements is a method of performing a synchronization function between a common management information service message used by an agent and an internal message of a transmission apparatus, a method of performing an error handling function, a configuration method of an operation internal message queue, and a storage method used therefor. It is an object of the present invention to provide a message control method for controlling a message by using a network management action sequence number of a common management information service message.

In order to achieve the above object, the present invention provides a message control method in an agent of a telecommunications management network, wherein the agent extracts a network management action sequence number upon receiving a network management operation request message requested by a management system. A first step of searching for a message queue using a search key after adding to the message; As a result of the search in the first step, if there is a queue unit matching the search key in the message queue, the network management operation response message is generated as an error when the first arrival time of the message queue unit exceeds the processing limit time, and the management is performed. Transmitting to the system; If there is no queue unit matching the search key in the message queue as a result of the first step, a new storage space is allocated, an operation request internal message is created, stored in the message queue, and transmitted to the maintenance module. Step 3; When the agent receives an operation response message from the maintenance module, searching for a matching message queue unit in the message queue using the sequence number of the operation response message; A fifth step of creating and transmitting a network management response message to the management system if there is a matching message queue unit in the search result of the fourth step; And generating a network management response message as an error when the first arrival time of the message queue unit exceeds the processing limit time and sending it to the management system if there is no matching message queue unit as a result of the search in the fourth step. Characterized in that it comprises six steps.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention;

1 is a configuration of a telecommunications management network to which the present invention is applied.

In general, a network management operation by a telecommunications management network uses a synchronous transmission device (1, 2) or a data communication network (11) by receiving a service from a common management information service element (CMISE) 9. This is done by exchanging network management operation messages (14, 15).

The synchronous transmitter consists of hardware (1) and software (2), and the software controls the network management behavior of the maintenance module (3) and the management system (10) having direct connection with the hardware (4) in the synchronous transmitter. It consists of an agent (5) to perform on behalf of.

The agent 5 performs a function for accessing the telecommunications management network and exchanges the network management operation messages 14 and 15 with the management system 10 existing in the management network as shown in FIG. When the agent 5 receives the network management operation request message 14 of the management system 10, the agent 5 generates an operation request message 12 and transmits the operation request message 12 to the maintenance module 3. The maintenance module 3 having received the operation request message 12 creates an operation response message 13 and transmits it to the agent 5. The agent 5 receives the operation response message 13 from the maintenance module 3 and composes and reports the network management operation response message 15 to the management system 10. At this time, between the management system 10 and the agent 5 uses only the data communication 11 consisting of a general protocol stack for message communication, the common management information service entity 9 to receive a stable service of the communication network Use service of.

Between the agent 5 and the maintenance module 3 there is an interprocessor internal communication path 16 as shown in FIG. The communication path follows a general interprocessor configuration such as a local area network (LAN), and thus communication between both processors may be lost. If the internal communication path 16 is disconnected after transmitting the operation request message 12 from the agent 5 to the maintenance module 3, the transmitted message may be lost.

Therefore, the response message to this message cannot be received by the air agent 5 unless the communication path controller controls it.

2 is a structure diagram of a message queue, and illustrates a structure of a message queue used by an agent to handle the above-described error situation.

This message queue 8 has a linked list structure, in which an application process 6 in the agent 5 creates a unit of the queue and stores it in the message queue 8 before sending a message to the maintenance module 3. do. The application process 6 of the agent 5 is composed of a part for processing the network management operation request message 14 and a part for processing the operation response message 13 of the maintenance module 3.

The pointer variable 31 which points to the beginning of the message queue and the pointer variable 32 which points to the end of the message queue are pointer variables, and two variables are initialized with null values indicating that there is no message when the agent is started. The message queue unit consists of a search key used for queuing operations such as searching and storing, an information portion for storing network management operation messages, an information portion requested by a maintenance module, and a pointer information portion pointing to the next message queue unit. The double pointer information part is null when the message queue unit is created.

When one message queue unit 34 is generated during the operation of an agent, pointer variables 31 and 32 indicating the beginning and end of the message are both set to the address value of this message queue unit. By this action, the pointer variables 31 and 32 and the message queue unit 34 are pointer information 33 and the pointer variable points to the message queue unit. When a new message queue unit 35 is created again, the pointer variable 32 indicating the end of the pointer is replaced with the address value of the new message queue unit so that the pointer information 33 and the pointer variable 32 indicating the end of the message are replaced. The message queue unit 35 is connected. At this time, the value of the pointer variable 31 indicating the beginning of the message does not change, and the pointer information 37 is created between the message queue units by setting the address value of the second message queue unit in the pointer information portion of the first message queue unit. This is done repeatedly whenever there is a new message queue unit up to the last message queue unit.

3 is a flowchart according to the present invention in which an agent processes a network management operation request message sent from a management system.

When the agent 5 receives the network management operation request message requested by the management system 10 (51), the agent 5 extracts the network management operation sequence number in the network management operation request message and uses it as a key for searching the message queue 8. (52).

If the search key is used to find the message per line in the message queue by searching from the first message queue unit 34 pointed out by the pointer information 33 of the pointer variable 31 pointing to the beginning of the message queue in FIG. Check whether the time management process is operational (54). If the time management process is active, after calculating the first arrival time of the message queue unit by subtracting the current time from the message queue unit message processing time for the network management operation request message (83), the calculation result is the processing time limit (message processing average). Time) is determined (84). If the processing time limit is exceeded, a network management action response message is created as a result of the error and sent to the management system (85) and the corresponding message queue unit is deleted from the message queue (74). If the result of the calculation does not exceed the processing time limit, the search target of the message queue is immediately passed to the next message queue unit (75). At this time, when the pointer information 37 indicating the next in the message queue indicates null, the search is completed and the operation response message reception state is entered (71). On the other hand, when the time management process is not operated, the received network management operation request message is ignored (59) and transitions to the initial state.

On the other hand, if there is no queue unit matching the search key in the message queue, a new storage space for the message queue unit is allocated to store the network management operation request message and the search key (55). The network management message is analyzed and the operation request internal message is created (56). The internal message, the search key, the arrival time information, and the network management message are stored as information and stored in the last queue unit of the message queue. If there are already several message queue units (34, 35, 36) in the message queue, the start address of the new message queue unit is stored in the pointer information 37 of the last message queue unit 36 in the message queue of FIG. In operation 57, the start address information of the new message queue unit is stored in a pointer variable 32 indicating the end of the message queue. The operation request internal message 12 is copied and sent to the maintenance module 3 (58) and transitions to the initial state.

4 is a flowchart according to the present invention in which an agent processes an operation response message sent by a maintenance module.

When the agent 5 receives the operation response message 13 from the maintenance module 3 (71), the agent 5 searches for a corresponding message queue unit in the message queue using the sequence number of the operation response message (72).

If there is a matching message queue unit, a network management operation response message 15 is created and transmitted to the management system 10 (73). The message queue unit is deleted from the message queue, and the information is changed so that the pointer information 37 indicated by the queue unit in front of the message queue unit of the message queue points to the message queue unit indicated by the message queue unit. If the message queue unit is the first or the last in the message queue, the pointer variable 31 indicating the beginning of the message queue or the pointer information 33 of the pointer variable 32 indicating the end of the message queue is changed (74). ). When there is a further search target in the message queue, the message queue search target is passed to the next message queue unit (75).

If there is no matching queue unit, it is compared if the sequence number of the action response message is greater than the sequence number of the message queue unit (81). If the sequence number of the operation response message is larger than the sequence number of the message queue unit, the operation of the time management process is checked (82). If the time management process is active, after calculating the first arrival time of the message queue unit by subtracting the current time from the message queue unit message processing time for the network management operation request message (83), the calculation result is the processing time limit (message processing average). Time) is determined (84). If the processing time limit is exceeded, a network management action response message is created as a result of the error and sent to the management system (85) and the corresponding message queue unit is deleted from the message queue (74). Pass in queue unit (75). At this time, when the pointer information 37 pointing to the next in the message queue indicates null, the search is completed and the operation response message reception state is entered (71).

On the other hand, if the processing time limit has not been exceeded (84) or the time management process is not running (82) or if the sequence number of the action response message is not greater than the sequence number of the message queue unit (81), the search target of the message queue Is passed to the next message queue and the process ends (75). At this time, when the pointer information 37 indicating the next in the message queue indicates null, the search is completed and the operation response message reception state is entered (71).

The present invention operating as described above has various effects as follows.

First, a network management operation message between a management system and an agent in a telecommunication management network may be exchanged regardless of the order of occurrence.

Second, it is possible to synchronize synchronization between the network management operation message in the telecommunications management network and the operation message in the synchronous transmission device.

Third, the agent may synchronize the network management operation message with the operation message in the synchronous transmission device.

Fourth, the operation message between the agent and the maintenance module in the synchronous transmission device can be processed without loss regardless of the order of occurrence.

Fifth, it is possible to perform error processing on whether an operation request requested by an agent is processed within a predetermined time in the maintenance module in the synchronous transmission device.

Sixth, through the above processing effects, the agent can accurately process the network management operation request of the management system regardless of the loss or occurrence order of messages.

Seventh, through the above processing effect, the telecommunication management network can reduce the burden of order control or error processing of network management operation messages.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawings shown.

Claims (5)

Subsequent to the message control method in the agent 5 of the telecommunications management network, when the agent 5 receives the network management operation request message requested by the management system 10, the agent 5 extracts the network management behavior sequence number and assigns the search key to the search key. A first step (51 to 53) of searching for the message queue (8) using the search key after adding; If there is a queue unit matching the search key in the message queue 8 as a result of the search in the first steps 51 to 53, the network management operation response when the first arrival time of the message queue unit exceeds the processing limit time A second step (54,59,74,75,83 to 85) for writing a message in error and sending it to the management system (10); As a result of the search in the first steps 51 to 53, if there is no queue unit matching the search key in the message queue 8, a new storage space is allocated, an operation request internal message is created, and the message queue 8 is created. A third step (55 to 58) for transmitting to the maintenance module (3) after storing in the storage unit; When the agent 5 receives the operation response message from the maintenance module 3, the agent 5 searches for a matching message queue unit in the message queue 8 using the sequence number of the operation response message (71). 72); A fifth step (73 to 75) of creating a network management operation response message and transmitting it to the management system (10) if there is a matching message queue unit as a result of the search in the fourth step (71, 72); And if there is no matching message queue unit as a result of the search in the fourth step (71, 72), when the first arrival time of the message queue unit exceeds the processing limit time, the network management operation response message is written as an error and the management is performed. And a sixth step (74, 75, 81 to 85) of transmitting to the system (10). 2. The second step (54, 59, 74, 75, 83 to 85) according to claim 1, wherein if there is a unit of queue in the message queue (8) that matches the search key, the operation of time management process is checked. Seventh step 54; An eighth step (59) of ignoring the received network management operation request message if the time management process is not operated as a result of the check in the seventh step (54); And calculating the first arrival time of the message queue unit by subtracting the current time from the message processing time of the message queue unit for the network management operation request message if the time management process is in operation. If it is determined that the result is longer than the processing time limit (message processing average time) and the processing time is exceeded, a network management response message is generated as an error result and sent to the management system 10, and the message queue 8 Delete the corresponding message queue unit, then pass the search target of the message queue to the next message queue unit, and if the calculation result does not exceed the processing time limit, immediately move the search target of the message queue to the next message queue unit. Message control method comprising nine steps (74, 75, 83 to 85). The method of claim 1, wherein the third steps (55 to 58), if there is no queue unit matching the search key in the message queue, a new storage space for the message queue unit to store the network management operation request message and the search key A seventh step (55) to be assigned; analyzes a network management message to create an operation request internal message, and stores the internal message, a search key, arrival time information, and a network management message as information in the message queue (8) An eighth step 56, 57; And a ninth step (58) of copying an operation request internal message and transmitting it to the maintenance module (3). The method as claimed in claim 1, wherein the fifth step (73 to 75) comprises: a seventh step (73) of creating and transmitting a network management response message to the management system if there is a matching message queue unit; An eighth step (74) of deleting the corresponding message queue unit from the message queue (8); And a ninth step (75) of passing the search target of the message queue to the next message queue unit. The method of claim 1, wherein the sixth step (74, 75, 81 to 85), if there is no matching queue unit, if the sequence number of the action response message is greater than the sequence number of the message queue unit is in operation of the time management process The seventh step of determining whether the calculation result is greater than the processing time limit (average of message processing time) after calculating the first arrival time of the message queue unit by subtracting the current time from the message processing time unit of the message queue unit for the network management operation request message. (81 to 84); As a result of the determination in the seventh step (81 to 84), when the processing time limit is exceeded, a network management operation response message is written as an error and transmitted to the management system 10, and the corresponding message queue in the message queue 8 is transmitted. An eighth step (74, 75, 85) of deleting the unit and then passing the search target of the message queue to the next message queue unit; And when the processing time limit is not exceeded in the seventh step (81 to 84), the time management process is not in operation, or the sequence number of the action response message is not greater than the sequence number in the message queue unit. Message control method comprising the ninth step (75) to pass to the next message queue unit.