KR20230083022A - Management command processing method for element management system - Google Patents

Abstract

The present invention relates to a management command processing method of a network management system, comprising the steps of a) storing IPC messages in message queues of all network elements constituting a ring-structured network, and b) communication failure with a previous network element of a ring-structured network. Checking whether the time is longer than the set time, and c) if the communication failure time is longer than the set time, changing the receiving address of the IPC message stored in the message queue and transmitting it to the next network element of the ring structure network. .

Description

Network management system management command processing method {Management command processing method for element management system}

The present invention relates to a management command processing method of a communication network equipment management system, and more particularly, to a management command processing method capable of managing network elements even when a failure occurs between network elements in a ring structure transmission network.

In general, an EMS (Element Management System) is a network management system for managing a plurality of systems connected to a network, and performs functions such as network element configuration management, failure management, performance management, and security management.

The EMS server checks the status of network elements using an IPC message, and an example of a management command processing method of a conventional network management system will be described with reference to the accompanying drawings.

1 is a network configuration diagram for explaining a management command processing method of a conventional network management system.

Referring to Figure 1, in the conventional network management system management command processing method, the EMS client 1 is a plurality of network elements (NE, Network Element, 4, 5, 6) is managed.

For this management, the management command is transmitted in a state included in an Inter Processor Communication (IPC) message.

The IPC message can be divided into a request message and a response message, and the EMS client (1) transmits the IPC message corresponding to the request message to the EMS server (2), and the EMS server (2) sends the IPC message containing the corresponding management command. The message is delivered to each network element (4, 5, 6) through the gateway network element (3), and the response IPC message of the network element (4, 5, 6) is collected and the IPC message is converted into an EMS client (1) as a response message. ) is provided.

In this structure, as shown in FIG. 2, between the gateway network element 3 and the network element 4 in a state in which the gateway network element 3 and the other network elements 4, 5, and 6 are connected in a ring-structured transmission network. If there is a failure in the transport network, the IPC message is lost. In this way, lost IPC messages cannot be recovered again.

Therefore, when the IPC message is lost, management of all network elements 4, 5, and 6 becomes impossible.

The problem to be solved by the present invention in consideration of the above problems is a network management system capable of transmitting and receiving response IPC messages including management commands periodically even when a failure occurs in a transmission network connecting gateway network elements and network elements. It is to provide a management command processing method.

A management command processing method of a network management system according to the present invention to solve the above technical problems includes the steps of a) storing IPC messages in message queues of all network elements constituting a ring-structured network, and b) transfer of a ring-structured network. Checking whether the communication failure time with the network element is longer than the set time; c) If the communication failure time is longer than the set time, changing the destination address of the IPC message stored in the message queue and sending it to the next network element of the ring structured network. steps may be included.

In an embodiment of the present invention, the previous network element in step b) may be a gateway network element or another network element.

In an embodiment of the present invention, in the step b), each network element sends a notification message to a previous network element of the ring structure network, and if an echo message for the notification message is not received, it can be determined that communication has failed. .

The present invention stores an IPC message in a queue for each network element, and when it detects a failure in a transmission network between a gateway network element and other network elements, it periodically changes the receiving address of the IPC message and transmits the IPC message for management using IPC messages. There is an effect that can be performed.

1 and 2 are network configuration diagrams for explaining a management command processing method of a conventional network management system.
3 is a network configuration diagram for explaining a management command processing method of the network management system of the present invention.
4 is a flowchart of a management command processing method of the network management system of the present invention.

In order to fully understand the configuration and effects of the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be implemented in various forms and various changes may be applied. However, the description of the present embodiment is provided to complete the disclosure of the present invention, and to completely inform those skilled in the art of the scope of the invention to which the present invention belongs. In the accompanying drawings, the size of the components is enlarged from the actual size for convenience of description, and the ratio of each component may be exaggerated or reduced.

Terms such as 'first' and 'second' may be used to describe various elements, but the elements should not be limited by the above terms. The above terms may only be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a 'first element' may be named a 'second element', and similarly, a 'second element' may also be named a 'first element'. can Also, singular expressions include plural expressions unless the context clearly indicates otherwise. Terms used in the embodiments of the present invention may be interpreted as meanings commonly known to those skilled in the art unless otherwise defined.

Hereinafter, a management command processing method of a network management system according to a preferred embodiment of the present invention will be described with reference to the drawings.

3 is a network configuration diagram for explaining a management command processing method of a network management system according to a preferred embodiment of the present invention.

Referring to FIG. 3, the present invention receives the request IPC message including the management command of the EMS client 10, and transmits the IPC message to the gateway network element 30 constituting the network of the ring structure EMS server 20 and first to third network elements 40, 50, and 60 constituting a ring-structured network including the gateway network element 30,

The first network element 40 stores the IPC message including the management command in the message queue, and if communication with the gateway network element 30 does not occur, it is determined that there is an error in the transmission network, and the IPC stored in the message queue It is configured to transmit the IPC message to the second network element 50, which is a sequential network element of the network, by changing the receiving address of the message.

4 is a flowchart of a management command processing method of the network management system of the present invention.

Referring to FIG. 4, the present invention includes storing an IPC message including a management command in a message queue (S41), and detecting a communication state with a gateway network element 30 or a previous network element constituting the network. (S42), determining whether communication with the gateway network element 30 or previous network elements constituting the network has failed for a set period of time or longer (S43), and receiving an IPC message if communication has failed for a period of time or longer set in step S43. It includes setting the address to the address of the network element located in the sequential order of the ring structured network or the gateway network element 30 (S44) and transmitting the IPC message with the received address changed (S45).

Hereinafter, the configuration and operation of the management command processing method of the network management system of the present invention configured as described above will be described in detail.

First, in step S41, the IPC message is stored in the message queue. IPC messages can be stored in all network elements. In FIG. 3, the first to third network elements 40, 50, and 60 are shown and described accordingly, but the number of network elements is not limited.

The present invention targets a ring-structured network, and the gateway network element 30 and the first to third network elements 40, 50, and 60 form a ring structure. When all transmission networks of the ring structure network are normal, between the gateway network element 30 and the first network element 40, between the first network element 40 and the second network element 50, and the second network element ( 50) and the third network element 60 transmit and receive IPC messages. At this time, the IPC message may be a request message including a management command and a response message responding to the request message.

For convenience of explanation, the network elements positioned at the rear end of the ring structured network may be referred to as the next network element, and the network elements positioned at the front end may be referred to as previous network elements.

That is, the network element in the order of the first network element 40 is the second network element 50, the previous network element is the gateway network element 30, and the network element in the order of the second network element 50 is The third network element 60, and the previous network element becomes the first network element 40.

Then, as in step S42, the first to third network elements 40, 50, and 60 periodically check the communication state with the previous network elements, respectively.

For example, the first to third network elements 40, 50, and 60 periodically transmit a notification message communicating with other network elements, and check whether an echo message for this is received to determine the status of the transmission network. can be checked.

The notification message differs depending on the setting, but is usually transmitted in units of 1 second.

Therefore, each of the first to third network elements 40, 50, and 60 can check the state of the transmission network connected to the previous network elements in the ring structure network.

If an echo message is not received between the first network element 40 and the gateway network element 30, the first network element 40 determines the time during which communication with the gateway network element 30 is not made (communication failure). count) check.

That is, as in step S43, the first to third network elements 40, 50, and 60 determine whether communication with the gateway network element 30 or previous network elements constituting the network has failed for a set period of time or longer.

The communication failure time is within the set time, and when communication is successful again, IPC messages are sent and received normally.

Conversely, if the communication failure time is longer than the set time, the destination address of the IPC message stored in the message queue is set to the address of the network element or the gateway network element 30 located in the order of the ring structured network.

That is, the transmission direction of the response IPC message is changed from the direction of the previous network element in the ring structure network to the next network element.

Therefore, as in the example described above, when an error occurs in the transmission network between the gateway network element 30 and the first network element 40, the first network element 40 is a second network element that is a sequential network element as in step S45. The IPC message is transmitted to (50), and the second network element (50) transmits the IPC message to the third network element (60).

Finally, the third network element 60 transmits the IPC message stored in the message queue to the gateway network element 30.

Through this process, it is possible to transmit an IPC message even when an error occurs in a transmission network between specific network elements, thereby enabling management of each network element.

As another example, when an error occurs in the transmission network between the first network element 40 and the second network element 50, the first network element 40 may exchange normal IPC messages with the gateway network element 30. The second network element 50 confirms that communication with the first network element 40 does not occur, and if the communication is not resumed for a set period of time or longer, it changes the destination address of the IPC message stored in the message queue to the third network element 50. It is transmitted to the network element (60).

In addition, the third network element 60 transmits the IPC message to the gateway network element 30.

Embodiments according to the present invention have been described above, but these are merely examples, and those skilled in the art will understand that various modifications and embodiments of equivalent scope are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined by the following claims.

10: EMS client 20: EMS server
30: gateway network element 40: first network element
50: second network element 60: third network element

Claims (3)

a) storing IPC messages in message queues of all network elements constituting the ring structured network;
b) checking whether the communication failure time with the previous network element of the ring structure network is longer than the set time; and
c) If the communication failure time is longer than the set time, changing the receiving address of the IPC message stored in the message queue and transmitting it to the sequential network element of the ring structure network. According to claim 1,
The previous network element in step b),
A management command processing method of a network management system, characterized in that it is a gateway network element or another network element. According to claim 1,
In step b),
A management command processing method of a network management system in which each network element transmits a notification message to a previous network element of a ring structured network and determines that communication has failed if an echo message for the notification message is not received.

Images