KR100381533B1 - Device and method for transmission network management data between switching center and network management center - Google Patents

Abstract

The present invention provides a network management data transmission device and method thereof between the switch and the network management center, and more particularly, the interface device between the switch and the network management center in a redundant manner and simultaneously manages network management data for a predetermined period. The present invention relates to a network management data transmission device between a switch and a network management center and a method for preventing data loss due to a failure of the network. In the event of a center failure, there is an excellent effect of minimizing the loss of network management data.

Description

Network management data transmission device between switch and network management center and its method {DEVICE AND METHOD FOR TRANSMISSION NETWORK MANAGEMENT DATA BETWEEN SWITCHING CENTER AND NETWORK MANAGEMENT CENTER}

The present invention relates to a network management data transmission device between a switch and a network management center and a method thereof. More particularly, the present invention provides an interface device between a switch and a network management center in redundancy and at the same time network management. The present invention relates to a network management data transmission device between an exchange and a network management center that prevents data loss due to a failure of the network management center by managing data for a certain period, and a method thereof.

A network management data transmission device between a conventional intelligent network switch and a network management center receives network management data in real time from the intelligent network switch 1 and transmits the network management data to the network management center 2 in real time. It was implemented as a production terminal (3).

However, the above-described network management data transmission device between the intelligent network switch and the network management center merely performs the network management data transmission operation between the intelligent network switch and the network management center, and transmits them separately by type of network management data. There was no function to manage network management data for a certain period of time.

Therefore, when the network management data is lost due to a problem in the network management center, there is no possibility of restoring the lost network management data, thereby destabilizing the entire system, and the operation terminal is not implemented with redundancy. There was a problem in that it could not provide a more stable interface between the intelligent network switch and the network management center.

Accordingly, the present invention has been made to solve the conventional problems as described above, and an object of the present invention is to realize a stable network management data interface between the exchange and the network management center and at the same time loss of network management data in the event of a failure of the network management center. The present invention provides a network management data transmission device between a switch and a network management center and a method thereof to minimize the error.

In order to achieve the above object, the network management data transmission apparatus between the switch and the network management center of the present invention comprises: a first shared memory for storing network management data for each type up to a maximum time, and network management data generated from the exchange. A first data collector for collecting and transmitting the network management data in real time, and storing the network management data in a corresponding type file of the first shared memory when the network management data is received in real time from the first data collector; An active NE system including a first data processing unit for transmitting redundant data information and transmitting a switching control signal when an abnormality occurs while transmitting redundant data information to a center; And

A second shared memory for storing network management data for each type up to a maximum time, a second data collecting unit for collecting and transmitting in real time network management data generated from an exchange, and a real time from the second data collecting unit When the network management data is received and stored in a corresponding type file of the second shared memory, and the redundant data information is received from the first data processing unit in the active NE system, the information in the first shared memory and its own information are thereby received. And a standby NE system having a second data processing unit which performs an active operation from that point in time when matching the information in the second shared memory and receiving the transfer control signal from the first data processing unit.

In addition, the network management data transmission method between the switch and the network management center of the present invention, the first data processing unit in the active NE system after receiving the network management data in real time from the first data collection unit, the data type in the first shared memory And storing and managing each time;

A step 200 of determining, by the first data processing unit, whether a data transmission request is received from the network management center;

When the data transmission request is received from the network management center in step 200, the first data processing unit transfers all network management data from the completion of previous transmission to the present to the network management center stored in the first shared memory in real time. A 300 step of transmitting;

A step 400 of determining, by the first data processor, whether an abnormality has occurred in the active NE system to which the first data processor belongs; And

If no abnormality occurs in the active NE system to which the active NE system belongs in step 400, if the abnormality occurs in the active NE system to which the active NE system belongs, the first data processing unit performs the standby NE system. It is characterized in that it comprises a 500th step of transitioning itself to the standby state at the same time as switching to the active state.

1 is a functional block diagram showing the configuration of a network management data transmission device between a conventional intelligent network switch and a network management center;

2 is a functional block diagram showing the configuration of a network management data transmission device between an intelligent network switch and a network management center according to an embodiment of the present invention;

3 is a diagram illustrating a configuration of a first shared memory in the network management data transmission device between the intelligent network switch and the network management center according to FIG. 2;

4 is a diagram illustrating a configuration of a second shared memory in the network management data transmission device between the intelligent network switch and the network management center according to FIG. 2;

5 is an operation flowchart showing a network management data transmission method between an intelligent network switch and a network management center according to an embodiment of the present invention;

6 is an operation flowchart showing a detailed operation of step 100 (S100) in the network management data transmission method between the intelligent network switch and the network management center according to FIG.

7 is an operation flowchart showing a detailed operation of step 300 (S300) in the network management data transmission method between the intelligent network switch and the network management center according to FIG.

FIG. 8 is an operation flowchart illustrating a detailed operation of step S700 in the method for transmitting network management data between an intelligent network switch and a network management center according to FIG. 5.

<Explanation of symbols for the main parts of the drawings>

100: active NE system 110: first shared memory

111: Type file for fault management 112: Real time performance type file

113: long-term performance management type file 114: configuration / state change type file

115: operation command type file 120: first data collection unit

130: first data processing unit 200: standby NE system

210: second shared memory 211: type file for failure management

212: real-time performance management type file 213: medium and long term performance management type file

214: configuration / status change type file 215: operation command type file

220: second data collector 230: second data processor

Hereinafter, an apparatus and method for transmitting network management data between an intelligent network switch and a network management center according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a functional block diagram of a network management data transmission device between an intelligent network switch and a network management center according to an embodiment of the present invention, the network management data transmission device between the intelligent network switch and the network management center according to an embodiment of the present invention It consists of an Active NE (Network Element; hereinafter referred to as " NE ") system (100), and a Standby NE system (200).

The active NE system 100 collects network management data generated by the intelligent network exchanger 1 in real time and manages them by data type and generation time zone, and then receives a large amount of network when receiving a transmission request from the network management center 2. The management data is transmitted to the network management center 2 in real time, and is managed by the network management data list and the stand-by NE system 200 which are managed by the network management data when the network management data is transmitted to the network management center 2. The network management data list is matched with the network management data list, and when an abnormality occurs in its own state, it transmits a transfer control signal to the standby NE system 200 so as to transition the standby NE system 200 to an active state. .

In this case, the active NE system 100 includes a first shared memory 110, a first data collector 120, and a first data processor 130.

The first shared memory 110 mounted in the active NE system 100 is a memory for storing network management data by dividing the network management data up to a maximum time for each type. As shown in FIG. Fault management type file 111 for storing management data, real-time performance management type file 112 for storing real-time performance management data, mid- and long-term performance management type file 113 for storing long-term performance management data, configuration and status A configuration / state change type file 114 for storing change data, and an operation command type file 115 for storing operation command data.

In addition, the five data type files 111, 112, 113, 114, and 115 in the first shared memory 110 may include 12 hourly storage areas 111a, 1 to 12 hours, depending on generation time of network management data. 112a, 113a, 114a, and 115a, respectively.

Meanwhile, the first data collector 120 mounted in the active NE system 100 collects network management data generated by the intelligent network switch 1 and transmits the network management data to the first data processor 130 in real time. Play a role.

In addition, when the first data processor 130 mounted in the active NE system 100 receives network management data from the first data collector 120 in real time, the corresponding data of the first shared memory 110 may be used. The data is stored in the corresponding hourly storage areas 111a, 112a, 113a, 114a, and 115a in the type files 111, 112, 113, 114, and 115, and transmitted to the network management center 2 in real time, and then duplicated data information. Transmits a standby control signal to the standby NE system 200 and transmits a transfer control signal to the standby NE system 200 when an abnormality occurs while monitoring a state of the standby NE system 200. At the same time, they play a role of transitioning to a standby state.

Meanwhile, the standby NE system 200 collects network management data generated by the intelligent network exchanger 1 in real time, manages data for each data type and generation time, and collects redundant data information from the active NE system 100. If received, the network management data list thereof is matched with the network management data list managed by the active NE system 100, and when the transfer control signal is received from the active NE system 100, an active operation is performed from that time point. And a second shared memory 210, a second data collector 220, and a second data processor 230.

At this time, the second shared memory 210 mounted in the standby NE system 200 is a memory for storing network management data by dividing the network management data up to a maximum time for each type, as shown in FIG. 4. Fault management type file 211 storing failure management data according to the type, real-time performance management type file 212 storing real-time performance management data, mid- and long-term performance management type file 213 storing long-term performance management data , Configuration / status change type file 214 for storing configuration and state change data, and operational command type file 215 for storing operation command data.

In addition, the five data type files 211, 212, 213, 214, and 215 in the second shared memory 210 may store 12 hourly storage areas 211a, 212a, 1 to 12 hours depending on the generation time of the network management data. 213a, 214a, and 215a, respectively.

Meanwhile, the second data collector 220 mounted in the standby NE system 200 collects network management data generated by the intelligent network switch 1 and transmits the network management data to the second data processor 230 in real time. It plays a role.

In addition, the second data processor 230 mounted in the standby NE system 200 receives the network management data from the second data collector 220 in real time, and then stores the second shared memory 210. The data type files 211, 212, 213, 214, and 215 are stored in the corresponding time-storage areas 211a, 212a, 213a, 214a, and 215a, and then managed. Then, the first data processor in the active NE system 100 is managed. When the redundant data information is received from the 130, the network management data list is updated to match the network management data list in the second shared memory 210 with the network management data list in the first shared memory 110. When the transfer control signal is received from the first data processor 130, an active operation is performed from that point.

Then, the network management data transmission method between the intelligent network switch and the network management center according to an embodiment of the present invention using the intelligent network switch and the network management data transmission device between the network management center having the configuration as described above 5, 6, This will be described with reference to FIGS. 7 and 8.

First, the first data processor 130 in the active NE system 100 receives network management data in real time from the first data collector 120, and then enters a data type in the first shared memory 110. And store by time (S100).

Hereinafter, a detailed operation process of the above-described 100th step S100 will be described with reference to FIG. 6.

First, the first data processing unit 130 receives network management data in real time from the first data collecting unit 120, and then checks the type and generation time of the network management data (S101).

Thereafter, the first data processor 130 determines whether the network management data received from the first data collector 120 is any type of data (S102).

In this case, when the network management data received from the first data collection unit 120 is a failure management data type in the 102 th step (S102), the first data processing unit 130 performs the first shared memory 110. It is determined whether or not the hourly storage area 111a of the time zone in which the network management data has occurred exists in the failure management type file 111 (S103).

In step 103, if there is a time-based storage area 111a of a time zone in which network management data occurs in the failure management type file 111 of the first shared memory 110 (YES), the first data The processor 130 opens the file 111 and stores the network management data in the corresponding hourly storage area 111a (S104). Here, the hourly storage area 111a has 12 pieces from 1 to 12 hours. For example, if the generation time of the network management data is 1:00, the network management data is the hourly storage area 111a corresponding to 1:00. Are stored in.

On the other hand, if the hourly storage area 111a of the time zone where the network management data occurs in the failure management type file 111 of the first shared memory 110 in step 103 (NO), The first data processor 130 generates the hourly storage area 111a corresponding to the generation time of the network management data in the failure management type file 111, and then proceeds to step 104 (S104). ).

On the other hand, if the network management data received from the first data collector 120 in the 102 step (S102) is a real-time performance management data type, the first data processor 130 is the first shared memory 110 In step S106, it is determined whether or not the hourly storage area 112a exists in the real time performance management type file 112 of the network management data.

At this time, if the time-storage area 112a of the time zone where the network management data occurs in the real-time performance management type file 112 of the first shared memory 110 in step 106 (YES), the The first data processor 130 opens the corresponding file 112 and stores the network management data in the corresponding time storage area 112a (S107).

On the other hand, if the hourly storage area 112a of the time zone where the network management data occurs in the real-time performance management type file 112 of the first shared memory 110 in step 106 (NO), The first data processing unit 130 generates the hourly storage area 112a corresponding to the generation time of the network management data in the real-time performance management type file 112, and then proceeds to step 107 (S107). ).

On the other hand, if the network management data received from the first data collector 120 in the 102 step (S102) is a medium-to-long term performance management data type, the first data processor 130 is the first shared memory 110 It is determined whether or not the hourly storage area 113a of the time zone in which the network management data has occurred exists in the mid to long term performance management type file 113 (S109).

In this case, if there is a time-based storage area 113a of a time zone where network management data occurs in the mid- to long-term performance management type file 113 of the first shared memory 110 in step 109 (YES), the After opening the file 113, the first data processor 130 stores the network management data in the corresponding storage area 113a at step S110.

On the other hand, if there is no hourly storage area 113a of the time zone where the network management data occurs in the mid- to long-term performance management type file 113 of the first shared memory 110 in step 109 (NO), The first data processor 130 generates the hourly storage area 113a corresponding to the generation time of the network management data in the mid- to long-term performance management type file 113, and then proceeds to step 110 (S110). ).

On the other hand, if the network management data received from the first data collection unit 120 in the 102 step (S102) is a configuration / state change data type, the first data processing unit 130 is the first shared memory 110 It is determined whether or not the hourly storage area 114a of the time zone in which the network management data has occurred exists in the configuration / status change type file 114 of step S112.

At this time, if there is an hourly storage area 114a of a time zone where network management data has occurred in the configuration / state change type file 114 of the first shared memory 110 in step 112 (YES), The first data processor 130 opens the file 114 and stores the network management data in the corresponding hourly storage area 114a (S113).

On the other hand, if there is no hourly storage area 114a of the time zone in which the network management data occurred in the configuration / state change type file 114 of the first shared memory 110 in step 112 (NO). The first data processing unit 130 generates the hourly storage area 114a corresponding to the generation time of the network management data in the configuration / state change type file 114, and then proceeds to step 113 (S113). (S114).

On the other hand, if the network management data received from the first data collection unit 120 in operation 102 is an operation command data type, the first data processing unit 130 of the first shared memory 110 It is determined whether the hourly storage area 115a of the time zone in which the network management data has occurred exists in the operation command type file 115 (S115).

At this time, if there is a time-based storage area 115a of a time zone where network management data has occurred in the operation command type file 115 of the first shared memory 110 in step 115 (YES), The first data processor 130 stores the network management data in the corresponding time storage area 115a after opening the file 115 (S116).

On the other hand, if the hourly storage area 115a of the time zone where the network management data occurs in the operation command type file 115 of the first shared memory 110 in the 115th step (S115) (NO), The first data processor 130 generates the hourly storage area 115a corresponding to the generation time of the network management data in the operation command type file 115, and then proceeds to step 116 (S116).

In addition, after the above-described step 100 (S100), the first data processor 130 determines whether a data transmission request is received from the network management center 2 (S200).

At this time, when a data transmission request is received from the network management center 2 in the 200th step S200 (YES), the first data processing unit 130 is stored in the first shared memory 110 in real time. All network management data from the previous transmission completion time to the present are transmitted to the network management center 2 (S300). In this case, the previous transmission completion point described above refers to a point in time when the first data processing unit 130 completes the transmission of network management data to the network management center 2 immediately before.

Hereinafter, a detailed operation process of the above-described 300th step S300 will be described with reference to FIG. 7.

First, the first data processor 130 determines whether a file having data to be transmitted among all data type files 111, 112, 113, 114, and 115 in the first shared memory 110 exists. S301).

At this time, if there is no file having data to be transmitted among all data type files 111, 112, 113, 114, and 115 in the first shared memory 110 in step 301 (NO), The first data processor 130 proceeds to step S400 again, and includes a file having data to be transmitted among all data type files 111, 112, 113, 114, and 115 in the first shared memory 110. If present (YES), the first data processor 130 reads network management data to be transmitted from the corresponding data type files and sequentially transmits the network management data to the network management center 2 (S302).

Thereafter, the first data processor 130 determines whether a data reception completion message has been received from the network management center 2 (S303).

At this time, if the data reception completion message is not received from the network management center 2 in step 303 (NO) (NO), the first data processing unit 130 proceeds to step 303 again (S303). On the other hand, when a data reception completion message is received from the network management center 2 (YES), the first data processing unit 130 is a redundant control signal to the second data processing unit 230 in the standby NE system 200. In operation S304, network management data stored in the first and second shared memories 110 and 210 are matched with each other.

In addition, after the above-described step 300 (S300), the first data processor 130 determines whether an abnormality has occurred in the active NE system 100 to which it belongs (S400).

At this time, if the abnormality does not occur in the active NE system 100 to which it belongs in step 400 (NO) (NO), the first data processor 130 proceeds to the step 100 again (S100). When an abnormality occurs in the active NE system 100 to which it belongs (YES), the standby NE system 200 is transferred to the active state and the self transitions to the standby state (S500).

On the other hand, if a data transmission request is not received from the network management center 2 in step 200 (NO) (NO), the first data processing unit 130 requests a data retransmission request from the network management center 2. It is determined whether or not it is received (S600).

At this time, if the data retransmission request is not received from the network management center 2 in step 600 (NO) (NO), the first data processing unit 130 proceeds to step 400 again (S400). When the data retransmission request is received from the network management center 2 (YES), the first data processing unit 130 transmits the network management data for retransmission request from the network management center 2 to the first shared memory ( At the same time, the lead is transmitted to the network management center 2 (S700).

Hereinafter, a detailed operation process of the above-described step 700 (S700) will be described with reference to FIG.

First, the first data processing unit 130 includes a file requesting retransmission from the network management center 2 among all data type files 111, 112, 113, 114, and 115 in the first shared memory 110. It is determined whether there exists or not (S701).

At this time, if the file for which retransmission is requested by the network management center 2 does not exist in step 701 (NO) (NO), the first data processing unit 130 proceeds to step 400 again (S400). On the other hand, if there is a file requesting retransmission from the network management center 2 (YES), the first data processing unit 130 selects data to be retransmitted among all network management data in the first shared memory 100. After sequentially reading and transmitting to the network management center (2) (S702).

Thereafter, the first data processor 130 determines whether a data reception completion message has been received from the network management center 2 (S703).

At this time, if the data reception completion message is not received from the network management center 2 in step 703 (NO) (NO), the first data processing unit 130 proceeds to step 703 again (S703). On the other hand, when a data reception completion message is received from the network management center 2 (YES), the first data processing unit 130 is a redundant control signal to the second data processing unit 230 in the standby NE system 200. After transmission, the network management data stored in the first and second shared memories 110 and 120 are matched and the process proceeds to step 400 again (S704).

As described above, according to the present invention, a network management data transmission device between a switch and a network management center and a method thereof realize a stable network management data interface by implementing a dual interface device between the switch and the network management center. In case of failure of the network management center, there is an excellent effect of reducing the loss of network management data as much as possible.

Claims (19)

A first shared memory for classifying and storing network management data up to a maximum time for each type; a first data collector for collecting and transmitting in real time network management data generated from an exchange; and a real time from the first data collector When the network management data is received, the data is stored in the corresponding type file of the first shared memory and transmitted to the network management center in real time, the redundant data information is transmitted, and the status is monitored while abnormality occurs. An active NE system having a first data processor for transmitting a control signal; And A second shared memory for storing network management data for each type up to a maximum time, a second data collecting unit for collecting and transmitting in real time network management data generated from an exchange, and a real time from the second data collecting unit When the network management data is received and stored in a corresponding type file of the second shared memory, and the redundant data information is received from the first data processing unit in the active NE system, the information in the first shared memory and its own information are thereby received. A switch and network comprising a standby NE system having a second data processing unit for matching information in a second shared memory and receiving an switching control signal from the first data processing unit and performing an active operation from that point in time. Network management data transmission device between management centers. The method of claim 1, The first and second shared memories are network management data transmission devices between a switch and a network management center, each of which comprises a plurality of data type files each comprising a plurality of (N) hourly storage areas according to generation time of network management data. . The method of claim 2, The plurality of data type files may include a failure management type file that stores failure management data; A real time performance management type file which stores real time performance management data; A medium to long term performance management type file for storing long and long term performance management data; A configuration / state change type file that stores configuration and state change data; And An apparatus for transmitting network management data between an exchange and a network management center, comprising an operation command type file for storing operation command data. A step 100 in which the first data processor in the active NE system receives the network management data in real time from the first data collector, and stores the data in the first shared memory for each data type and time; A step 200 of determining, by the first data processing unit, whether a data transmission request is received from the network management center; When the data transmission request is received from the network management center in step 200, the first data processing unit transfers all network management data from the completion of previous transmission to the present to the network management center stored in the first shared memory in real time. A 300 step of transmitting; A step 400 of determining, by the first data processor, whether an abnormality has occurred in the active NE system to which the first data processor belongs; And If no abnormality occurs in the active NE system to which the active NE system belongs in step 400, if the abnormality occurs in the active NE system to which the active NE system belongs, the first data processing unit performs the standby NE system. Transmitting the network management data between the switch and the network management center, the method comprising: transitioning to an active state and transitioning itself to a standby state. The method of claim 4, wherein The first and the second shared memory, the network management data transmission method between the switch and the network management center, characterized in that composed of a plurality of data type files each consisting of a plurality of (N) hourly storage areas according to the generation time of the network management data . The method of claim 5, The plurality of data type files may include a failure management type file that stores failure management data; A real time performance management type file which stores real time performance management data; A medium to long term performance management type file for storing long and long term performance management data; A configuration / state change type file that stores configuration and state change data; And A method for transmitting network management data between an exchange and a network management center, comprising an operation command type file for storing operation command data. The method of claim 4, wherein The step 100 may include: step 101, after the first data processor receives the network management data in real time from the first data collector, checking the type and generation time of the network management data; Step 102 of determining, by the first data processing unit, what type of data is network management data received from the first data collection unit; If the network management data received from the first data collection unit in step 102 is a failure management data type, the first data processing unit is configured to generate a time zone in which network management data occurs in a failure management type file of the first shared memory. Determining whether a storage area exists over time; And In step 103, if there is an hourly storage area in a time zone where network management data occurs in the failure management type file of the first shared memory, the first data processor opens the file and stores network management data for the corresponding time. A network management data transmission method between an exchange and a network management center, comprising the step of storing in an area. The method of claim 7, wherein In step 103, if the hourly storage area of the time zone where the network management data occurs in the failure management type file of the first shared memory does not exist, the first data processing unit generates the network management data in the failure management type file. And generating a storage area for each time corresponding to a time, and then proceeding to step 104, further comprising the step 105, wherein the network management data is transmitted between the switch and the network management center. The method of claim 7, wherein If the network management data received from the first data collector in step 102 is a real-time performance management data type, the first data processing unit is configured to generate a time zone where network management data occurs in a real-time performance management type file of the first shared memory. Determining whether or not a storage area exists over time; And In step 106, if there is an hourly storage area of a time zone where network management data occurs in the real-time performance management type file of the first shared memory, the first data processing unit opens the file and stores network management data by the corresponding time. And a step 107 of storing in the area. The method of claim 9, In step 106, if the hourly storage area of the time zone where network management data occurs in the real-time performance management type file of the first shared memory does not exist, the first data processing unit generates network management data in the real-time performance management type file. And a step 108 which proceeds to step 107 after generating a time-specific storage area corresponding to a time. The method of claim 7, wherein If the network management data received from the first data collector in step 102 is a medium to long term performance management data type, the first data processor is configured to generate a time zone where network management data occurs in a medium to long term performance management type file of the first shared memory. A step 109 of determining whether a storage area for each time exists; And In step 109, if there is an hourly storage area of a time zone where network management data occurs in the mid- to long-term performance management type file of the first shared memory, the first data processor opens the file and stores network management data by the corresponding time. The network management data transmission method between the switch and the network management center, further comprising the step 110 of storing in the area. The method of claim 11, In step 109, if there is no time-based storage area of a time zone where network management data occurs in the mid- to long-term performance management type file of the first shared memory, the first data processing unit generates network management data in the mid- to long-term performance management type file. And a step 111 of proceeding to step 110 after creating a time-specific storage area corresponding to a time. The method of claim 7, wherein If the network management data received from the first data collector in step 102 is a configuration / state change data type, the first data processing unit generates network management data in a configuration / state change type file of the first shared memory. Step 112, determining whether a time-based storage region exists in the time zone; And In step 112, if there is an hourly storage area of a time zone where network management data is generated in the configuration / state change type file of the first shared memory, the first data processor opens the file and then stores network management data by the corresponding time. And a step 113 of storing the data in the storage area. The method of claim 13, If there is no time-based storage area of the time zone where network management data occurs in the configuration / state change type file of the first shared memory in step 112, the first data processing unit stores the network management data in the configuration / state change type file. And generating a storage area for each time corresponding to the occurrence time of the network, and then proceeding to step 113, further comprising the step 114, wherein the network management data is transmitted between the switch and the network management center. The method of claim 7, wherein If the network management data received from the first data collection unit in operation 102 is an operation command data type, the first data processing unit stores time-by-hour in a time zone where network management data occurs in an operation command type file of the first shared memory. A step 115 for determining whether an area exists; And In step 115, if there is an hourly storage area of a time zone in which network management data occurs in an operation command type file of the first shared memory, the first data processor opens the file and stores network management data in the hourly storage area. The network management data transmission method between the switch and the network management center, characterized in that the method further comprises the step 116 of storing. The method of claim 15, In step 115, if there is no time storage area in a time zone where network management data occurs in an operation command type file of the first shared memory, the first data processing unit is configured to generate an operation time of network management data in the operation command type file. And a step 117 of proceeding to step 116 after generating a corresponding time-specific storage area. 10. A method of transmitting network management data between an exchange and a network management center. The method of claim 4, wherein The step 300 may include: determining, by the first data processor, whether there is a file having data to be transmitted among all data type files in the first shared memory; In step 301, if there is no file having data to be transmitted among all data type files in the first shared memory, the process proceeds to step 400 again, while having data to be transmitted among all data type files in the first shared memory. Step 302, when the file exists, the first data processing unit sequentially transmitting network management data stored in corresponding data type files to the network management center; Step 303, the first data processor determining whether a data reception completion message has been received from the network management center; And If the data reception completion message is not received from the network management center in step 303, the process proceeds to the step 303 again. And transmitting the redundancy control signal to the second data processing unit in the NE system, thereby matching network management data stored in the first and second shared memories. . The method of claim 4, wherein A step 600 of determining whether a data retransmission request is received from the network management center if the data transmission request is not received from the network management center in step 200; And In step 600, if the data retransmission request is not received from the network management center, the process proceeds to step 400 again. When the data retransmission request is received from the network management center, the first data processing unit transmits the request to the network management center. And a 700 th step of proceeding to the 400th step after transmitting the network management data requesting retransmission from the first shared memory to the network management center at the same time. Inter-network management data transmission method. The method of claim 18, In step 700, the first data processor determines whether a file for which re-transmission is requested from the network management center exists among all data type files in the first shared memory; If the file for which retransmission is requested in the network management center does not exist in step 701, the process proceeds to step 400 again. If the file for retransmission is present in the network management center, the first data processing unit performs the step. Step 702, sequentially reading data to be retransmitted among all network management data in the first shared memory and transmitting the data to the network management center; Step 703, the first data processing unit determines whether a data reception completion message has been received from the network management center; And If the data reception completion message is not received from the network management center in step 703, the flow returns to step 703, and when the data reception completion message is received from the network management center, the first data processing unit receives the standby. And transmitting the redundancy control signal to the second data processing unit in the NE system to match the network management data stored in the first and second shared memories. .