KR20230058974A - Network data chaining apparatus, and control method thereof - Google Patents

Abstract

The present invention relates to a chaining technology that builds a network by combining virtual resource-based applications in a predetermined connection order, and provides a dynamic connection combination between an application of an internal system and an application of an external system and the resulting data flow. It relates to a network data chaining device that can be changed and a method of operating the network data chaining device.

Description

Network data chaining device and operation method of network data chaining device {NETWORK DATA CHAINING APPARATUS, AND CONTROL METHOD THEREOF}

The present invention relates to a chaining technology that builds a network by combining virtual resource-based applications in a predetermined connection order, and provides dynamic It is about a plan to change to.

Interest in network openness and virtualization is increasing, centering on service providers and telecommunication operators, and technologies supporting this are Software-Defined Networking (SDN) technology and Network Functions Virtualization (NFV). ) technology exists.

NFV technology is regarded as one of the representative application fields of SDN in that network service functions composed of hardware can be flexibly relocated by software virtualization.

In particular, service chaining technology, which builds a network by combining a plurality of virtualized network components based on NFV in a predetermined order, is attracting high attention from network operators and service providers.

In this regard, since NFV technology is also applied to the Mobile-Edge Computing (MEC) environment, which is a concept to provide various IT services and technologies that were provided in the existing cloud environment at the edge of the mobile network, One network can be implemented by combining virtual resource-based applications in a predetermined connection order.

On the other hand, in the case of a network in which applications are built in a combination of connections, applications of external systems such as external networks or public clouds as well as applications of internal systems such as on-premise cloud (On-Promise Cloud) A connection may be required.

However, according to the existing chaining technology, there is no way to dynamically change the connection combination between the application of the internal system and the application of the external system and the resulting data flow, other than a complicated method of changing the implementation logic of the application. The situation is.

Therefore, in the present invention, in relation to the chaining technology that builds one network by combining virtual resource-based applications in a predetermined connection order, the connection combination between the application of the internal system and the application of the external system and the resulting data flow can be dynamically changed. We would like to propose a new technique.

The present invention was created in view of the above circumstances, and an object to be reached in the present invention is related to chaining technology that builds a network by combining virtual resource-based applications in a predetermined connection order, It is to propose a new technique that can dynamically change the connection combination between the application of the system and the application of the external system and the resulting data flow.

Network data chaining device according to an embodiment of the present invention for achieving the above object, in connection with the construction of a network in which each virtual resource-based application is combined in a predefined connection order, the application of the internal system and the external system a confirmation unit confirming that connection between applications is required; and a processing unit that sets network chaining information defining a connection sequence between applications in the internal system to data, encapsulates the data for which the network chaining information is set, and transmits the data to an application of the external system, When the data processed by the application of the external system is encapsulated and received from the application of the external system, the processing unit converts the data according to the network chaining information identified from the data during decapsulation. It is characterized in that it is passed to an application in the next connection order in the internal system to be processed.

Specifically, the network data chaining device may further include an acquisition unit for obtaining network chaining information about network resources in which virtual resource-based applications are combined in an order of connection, from data.

Specifically, the network chaining information includes a label added to a header field of the data to indicate an application of each connection sequence according to a connection sequence defined between applications in the internal system, and the processing unit, As indicated by the label, data received from the source is transferred to a specific application in the internal system, and data processed in the specific application is transferred to another application that is adjacent to the specific application and in order of connection, and the internal system When data processing is completed between my applications, the processed data can be delivered to the destination.

Specifically, the network chaining information includes a MAC address for each application that is updated as a destination MAC address of the data to indicate an application of each connection sequence according to a connection sequence defined between applications in the network, and the processing unit, The destination MAC address of the data received from the source is set to the MAC address of a specific application of the internal system and delivered to the specific application, and for data processed in the specific application, the destination MAC address is set to the specific application and the neighboring It is updated with the MAC address of another application, which is the next connection sequence, and delivered to the other application, and when data processing is completed between applications in the internal system, the processed data can be delivered to the destination.

In order to achieve the above object, a method of operating a network data chaining device according to an embodiment of the present invention relates to the construction of a network in which each virtual resource-based application is combined in a predefined connection order, the application of the internal system and A confirmation step of confirming that a connection is required between applications of an external system; and a processing step of setting network chaining information defining a connection sequence between applications in the internal system to data, encapsulating the data for which the network chaining information is set, and transmitting the data to an application of the external system; , In the processing step, when the data processed by the application of the external system is encapsulated and received from the application of the external system, according to the network chaining information identified from the data during decapsulation, It is characterized in that data is transferred to an application in the next connection order in the internal system to be processed.

Specifically, the method may further include acquiring network chaining information about network resources in which virtual resource-based applications are combined in an order of connection, from data.

Specifically, the network chaining information includes a label added to a header field of the data to indicate an application of each connection sequence according to a connection sequence defined between applications in the internal system, and the processing step is , As indicated by the label, the data received from the source is transferred to a specific application in the internal system, and the data processed in the specific application is transferred to another application in the order of connection next to the specific application. When data processing is completed between applications within the system, the processed data may be delivered to a destination.

Specifically, the network chaining information includes a MAC address for each application that is updated as a destination MAC address of the data to indicate an application of each connection sequence according to a connection sequence defined between applications in the network, and the processing step is , The destination MAC address of the data received from the source is set as the MAC address of a specific application of the internal system, and forwarded to the specific application, and for data processed in the specific application, the destination MAC address is set as a neighbor of the specific application. Then, the MAC address of another application in order of connection is updated and transmitted to the other application, and when data processing is completed between applications in the internal system, the processed data may be delivered to the destination.

A program according to an embodiment of the present invention for achieving the above object is combined with hardware, in connection with the construction of a network in which each virtual resource-based application is combined in a predefined connection order, the application of the internal system and the external A confirmation step of confirming that a connection is required between applications of the system; and executing a processing step of setting network chaining information defining a connection sequence between applications in the internal system to data, encapsulating the data for which the network chaining information is set, and transmitting the data to an application of the external system. In the case where the data processed by the application of the external system is encapsulated and received from the application of the external system, the processing step is performed by the network identified from the data during decapsulation. Characterized in that, according to the chaining information, the data is transferred to an application in the next connection sequence in the internal system for processing.

Accordingly, according to the network data chaining device and the operating method of the network data chaining device of the present invention, in relation to the chaining technology of constructing a network by combining virtual resource-based applications in a predetermined connection order, the internal system When a connection between an application and an application of an external system is required, L3-based encapsulation enables data processing in conjunction with the application of the external system while maintaining the chaining method of the internal system set in the data as it is, so the internal system It can be seen that the connection combination between the application of the external system and the application of the external system and the resulting data flow can be dynamically changed without delay.

1 and 2 are exemplary diagrams for explaining a network chaining environment according to the prior art.
3 is an exemplary view for explaining a network chaining environment according to an embodiment of the present invention;
4 is a configuration diagram for explaining a network data chaining device according to an embodiment of the present invention.
5 and 6 are exemplary diagrams for explaining data flow according to an embodiment of the present invention.
7 is a flowchart illustrating an operating method of a network data chaining device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

In one embodiment of the present invention, a service chaining technology for building a network by combining a plurality of network components virtualized based on NFV in a predetermined order is dealt with.

In this regard, since NFV technology is also applied to the Mobile-Edge Computing (MEC) environment, which is a concept to provide various IT services and technologies that were provided in the existing cloud environment at the edge of the mobile network, One network can be implemented by combining virtual resource-based applications (software modules) in a predetermined connection order.

On the other hand, in a network in which applications are combined in this way, data processed by each application is transferred to the next application in the next order according to a predetermined connection order. If a change in data flow between these applications is required, the existing application Connections between applications must be terminated, and connections between applications must be newly configured.

However, in order to terminate the existing connection between applications, all data waiting to be transmitted must be transmitted at the kernel and network level, which makes it difficult to change the data flow between applications in real time, resulting in data transmission delay.

For example, as shown in FIG. 1 , data received from an external source is processed by the first application (App1), and the data processed by the first application (App1) is processed by the second application (App2). If you want to change the existing data path that is delivered to the destination (Sinker) via the source (External Source) to a new data path that is delivered to the destination (Sinker) via the first application (App1) and the third application (App3). I can assume

In this case, data processing and data transmission in the first application (App1) must be stopped, and after waiting for all data that has already been transmitted in the application (App1 or App2) and waiting to be transmitted in the kernel and network levels to be transmitted, the existing data A series of processes in which a connection for transmission must be terminated, a new connection must be created between the first application (App1) and the third application (App3), and then data processing and data transmission must be started again are required.

Moreover, in order to change the combination of applications and the corresponding data flow in the network built by the combination of applications, it is necessary to support the creation and change of L3 (TCP/UDP) data channels for data transmission at the application level. A problem arises in which the implementation logic of the application to support becomes complicated.

In particular, in the case of a network in which applications are built in the form of a connection combination, for example, as shown in FIG. A connection may be required.

Here, the internal system may be understood as an on-premise cloud, and the external system may be understood as an external network or public cloud.

However, according to the existing chaining technology, there is no way to dynamically change the connection combination between the application of the internal system and the application of the external system and the resulting data flow, other than a complicated method of changing the implementation logic of the application. The situation is.

Therefore, in the present invention, in relation to the chaining technology that builds one network by combining virtual resource-based applications in a predetermined connection order, the connection combination between the application of the internal system and the application of the external system and the resulting data flow can be dynamically changed. It is to propose a new method that has

In this regard, FIG. 3 exemplarily shows a network chaining environment according to an embodiment of the present invention.

As shown in FIG. 3, in the network chaining environment according to an embodiment of the present invention, applications (App1, App2, App4, and App6) of the internal system and applications (App3, App5) of the external system each have a predefined connection. A network data chaining device 100 for controlling data flow in a sequentially combined network may be included.

Here, the network data chaining device 100 sequentially transfers data received from the source (External Source) according to the order of connection between applications (App1, App2, App4, App6) of the internal system and applications (App3, App5) of the external system. It refers to a device for serial processing between applications (App1, App2, App3, App4, App5, App6) and for delivering the processed data to the destination (Sinker).

Such a network data chaining device 100 may be implemented in the form of a network component virtualized at the network level separately from virtual resource-based applications (App1, App2, and App3), for example.

Meanwhile, in an embodiment of the present invention, an internal system and an external system may transfer traffic between each other through a gateway node (GW) for processing L3 (Layer 3) traffic.

On the other hand, the network chaining 100 according to an embodiment of the present invention can be applied, for example, for media data processing. In this case, in each application (App1, App2, App3) in the network, decoding ( Decoding, by App1), upscaling (UpScaling, by App2), and encoding (Encoding, by App3) may be sequentially processed.

In the network chaining environment according to an embodiment of the present invention, through the above-described configuration, connection combinations between applications (App1, App2, App4, and App6) of the internal system and applications (App3, App5) of the external system and data flow accordingly can be dynamically changed. Hereinafter, the configuration of the network data chaining device 100 for realizing this will be described in more detail.

4 shows a schematic configuration of a network data chaining device 100 according to an embodiment of the present invention.

As shown in FIG. 4, in the network data chaining device 100 according to an embodiment of the present invention, connection between applications (App1, App2, App4, App6) of the internal system and applications (App3, App5) of the external system is established. A configuration including a confirmation unit 110 that checks whether or not a request is required, and a processing unit 120 that processes data transmission between applications (App1, App2, App4, App6) of the internal system and applications (App3, App5) of the external system. can have

In addition, the network data chaining device 100 according to an embodiment of the present invention may further include an acquisition unit 130 that obtains network data chaining information from data received from an external source in addition to the above-described configuration. .

The entire configuration or at least a part of the network data chaining device 100 may be implemented in the form of a software module, where the software module is separate from the internal system applications (App1, App2, App4, App6) at the network level. It can be understood as being a network component that is virtualized and built.

Based on the above configuration, the network data chaining device 100 according to an embodiment of the present invention is a connection combination between internal system applications (App1, App2, App4, App6) and external system applications (App3, App5) And it is possible to dynamically change the data flow accordingly. Hereinafter, a more detailed description of the internal configuration of the network data chaining device 100 for realizing this will be continued.

The checking unit 110 performs a function of checking whether or not a connection between applications (App1, App2, App4, App6) of the internal system and applications (App3, App5) of the external system is required.

More specifically, the check unit 110 determines whether a connection is required between the applications (App1, App2, App4, and App6) of the internal system and the applications (App3, App5) of the external system according to data reception from the source (External). will check

At this time, the check unit 110 checks whether or not a connection is required between the applications (App1, App2, App4, and App6) of the internal system and the application (App3, App5) of the external system for network establishment from the setting values defined for network establishment. can be checked.

Here, the request for connection between the applications (App1, App2, App4, App6) and the application applications (App3, App5) of the external system means that the data received from the source (External Source) is connected to the first application (App1) of the internal system. The data processed through the second application (App2) must be transferred to the third application (App3) of the external system, and the data processed by the third application (App3) is again processed by the fourth application (App4) of the internal system. It can be understood that the process of the fifth application (App5) of the external system and the sixth application (App6) of the internal system must be sequentially processed and then delivered to the destination (Sinker).

The processing unit 120 performs a function of processing data transmission between applications (App1, App2, App4, App6) of the internal system and applications (App3, App5) of the external system.

More specifically, the processing unit 120, when a connection is required between the applications (App1, App2, App4, App6) of the internal system and the applications (App3, App5) of the external system, the application (App1, App2, App4, According to the connection order between App6), the processed data is transferred to each application (App1, App2, App4, App6) to the application (App3, App5) of the external system, and the processed data is transferred to the application (App3, App5) of the external system. The data is again passed to the applications (App1, App2, App4, App6) of the internal system according to the remaining connection order of the internal system so that they can be processed, and through this, between the applications (App1, App2, App3, App4, App5, App6) When data processing is completed, the processed data is delivered to the destination (Sinker).

At this time, the processing unit 120 encapsulates the processed data transmitted to each application (App1, App2, App4, App6) according to the connection order between the applications (App1, App2, App4, App6) of the internal system. Then, it is transmitted to the application (App3, App5) of the external system, and conversely, the data processed by the application (App3, App5) of the external system is also received in an encapsulated state.

This is a way to maintain the chaining method of the internal system as it is, and to protect the network chaining information set in the data to define the connection order between applications (App1, App2, App4, App6) in the internal system through encapsulation. It is for

For reference, the transmission and reception of encapsulated data between the internal system and the applications (App3, App5) of the external system in this way means that the L3-based encapsulation pipeline between the internal system and the external system's applications (App3, App5) (L3 Encapsulation Pipeline).

Furthermore, when the data processed by the applications (App3, App5) of the external system is encapsulated and received from the applications (App3, App5) of the external system, the processing unit 120 decapsulates the data when the corresponding data is decapsulated. The decapsulated data according to the network chaining information confirmed from the internal system is transferred to the application in the next connection order to be processed.

For example, as shown in FIG. 5, in the process of transferring the data processed by the second application (App2) to the fourth application (App4) according to the order of connection between the applications (App1, App2, App4, and App6) of the internal system. It may be assumed that data transfer to the third application (App3) of the external system is required.

In this case, network chaining information (App4) for indicating the fourth application (App4), which is the next connection sequence in the internal system, is set in the data processed by the second application (App2).

In this regard, the data processed by the second application (App2) is encapsulated (destination address: IP1) to maintain the network chaining information (App4) set in the data, and is transmitted to the third application (App3), Data processed by the third application (App3) is similarly encapsulated in the third application (App3) and received into the internal system.

In this way, when encapsulated and received data is decapsulated by the third application (App3) of the external system, the network chaining information (App4) set in the data can be checked, and accordingly, decapsulation The processed data (data processed by the third application) can be delivered to the fourth application (App4), which is the next connection sequence in the internal system, according to the instruction of the network chaining information (App4).

In addition, in the process of transferring the data processed by the fourth application (App4) to the sixth application (App4) according to the connection order between the applications (App1, App2, App4, and App6) of the internal system, the fifth application (App5) of the external system ), it can be assumed that data transfer is required.

In this case, network chaining information (App6) is set in the data processed by the fourth application (App4) to indicate the sixth application (App6), which is the next connection sequence in the internal system.

In this regard, the data processed by the fourth application (App4) is encapsulated (destination address: IP2) in order to maintain the network chaining information (App6) set in the data, and is transmitted to the fifth application (App5), Data processed by the fifth application (App5) is again encapsulated in the fifth application (App5) and received into the internal system.

In this way, when encapsulated and received data from the fifth application (App3) of the external system is decapsulated, it is possible to check the network chaining information (App6) set in the corresponding data, and accordingly, decapsulation The processed data (data processed by the fifth application) can be delivered to the sixth application (App6), which is the next connection sequence in the internal system, according to the instruction of the network chaining information (App4).

Furthermore, the data processed by the sixth application (App6) is transferred to the destination (Sinker) according to the completion of data processing between the applications (App1, App2, App3, App4, App5, App6) linked to the internal system and the external system. can confirm.

On the other hand, in the case of network chaining information set in data to define the connection order between applications (App1, App2, App4, App6) in the internal system in an embodiment of the present invention, for example, Multiprotocol Label Switching (MPLS) Switching) technology, in the form of a label added to the header field of data to indicate the application of each connection sequence according to the connection sequence defined between applications (App1, App2, App4, App6) in the internal system. can be implemented

To this end, the acquisition unit 130 may obtain network chaining information from data received from an external source.

In this regard, the processing unit 120 transfers the data received from the source (External Source) to a specific application in the internal system as indicated by the label, and the data processed in the specific application is adjacent to the specific application and then connected. When data processing is completed between applications in the internal system, the processed data may be transferred to a destination (sinker).

In this process, the processing unit 120 transfers the data received from the external source in this data transfer process to the input port of the specific application, and the data processed in the specific application is transmitted from the output port of the specific application. It is obtained and transferred to the input port of the other application.

For example, as shown in FIG. 6 (a), when a label added to a header field of data indicates the connection order of the first application (App1), the second application (App2), and the third application (App3), respectively, The data received from the source (External Source) is transferred to the input port of the first application (App1), and the data processed by the first application (App1) is transferred from the output port of the first application (App1) to the second application (App2). The data processed by the second application (App2) is transferred from the output port of the second application (App2) to the input port of the third application (App3), and the data processed by the third application (App3) Data can be transferred from the output port of the third application (App3) to the destination (Sinker).

As such, in one embodiment of the present invention, it can be confirmed that data transmission between the applications (App1, App2, and App3) is performed on a network side separate from the applications (App1, App2, and App3). The connection combination between App2 and App3) and the resulting data flow can be dynamically changed without delay, and the application (App1, App2, App3) processes data received through the input port and exports the processed data through the output port. Since only is required, the implementation logic of the application can be minimized.

In addition, in the case of network chaining information set in data to define the order of connection between applications (App1, App2, App4, App6) in the internal system, for example, It can be implemented in the form of a MAC address for each application that is updated as a destination MAC address of data to indicate the application of each connection sequence according to the connection sequence.

Here, the MAC address for each application may correspond to the MAC address of a virtual port generated to transfer traffic of virtual resources.

In this regard, the processing unit 120 sets the MAC address of the destination of the data received from the source (External Source) as the MAC address of a specific application, delivers it to the specific application, and processes the data received from the specific application as indicated by the label. Regarding data, the destination MAC address is updated to the MAC address of another application in the next connection order adjacent to the specific application and delivered to the other application, and when data processing is completed between applications in the internal system, processed data It can be delivered to the destination (Sinker).

In this process, the processing unit 120 transfers the data received from the external source in this data transfer process to the input port of the specific application, and the data processed in the specific application is transmitted from the output port of the specific application. It is obtained and transferred to the input port of the other application.

For example, as shown in FIG. 6 (b), when the connection order of the first application (App1), the second application (App2), and the third application (App3) is required, the data received from the source (External Source) The destination MAC address is set as the MAC address of the first application and transmitted to the input port of the first application (App1), and the data processed by the first application (App1) sets the destination MAC address to the MAC address of the second application (App2). and transfers from the output port of the first application (App1) to the input port of the second application (App2), and the data processed by the second application (App2) sets the destination MAC address to the MAC address of the third application (App3). and transfers from the output port of the second application (App2) to the input port of the third application (App3), and the data processed by the third application (App3) is transmitted from the output port of the third application (App3) to the destination (Sinker). ) can be transmitted.

As such, in one embodiment of the present invention, it can be confirmed that data transmission between the applications (App1, App2, and App3) is performed on a network side separate from the applications (App1, App2, and App3). The connection combination between App2 and App3) and the resulting data flow can be dynamically changed without delay, and the application (App1, App2, App3) processes data received through the input port and exports the processed data through the output port. Since only is required, the implementation logic of the application can be minimized.

As described above, according to the configuration of the network data chaining device 100 according to an embodiment of the present invention, chaining technology for building a network by combining virtual resource-based applications in a predetermined connection order, and In this regard, when a connection between applications (App1, App2, App4, App6) of the internal system and applications (App3, App5) of the external system is required, the chaining method of the internal system set in the data through L3-based encapsulation As it enables data processing in conjunction with external system applications (App3, App5) without changing the application logic, internal system applications (App1, App2, App4, App6) and external system applications (App3, App5) are possible. ) and the resulting data flow can be dynamically changed.

Hereinafter, an operating method of the network data chaining device 20 according to an embodiment of the present invention will be described with reference to FIG. 7 .

First, the confirmation unit 110 checks whether a connection is required between applications (App1, App2, App4, App6) of the internal system and applications (App3, App5) of the external system according to data reception from the source (External). Do (S110-S120).

At this time, the check unit 110 checks whether or not a connection is required between the applications (App1, App2, App4, and App6) of the internal system and the application (App3, App5) of the external system for network establishment from the setting values defined for network establishment. can be checked.

As such, the request for connection between the applications (App1, App2, App4, App6) and the application applications (App3, App5) of the external system means that the data received from the source (External Source) is connected to the first application (App1) of the internal system. The data processed through the second application (App2) must be transferred to the third application (App3) of the external system, and the data processed by the third application (App3) is again processed by the fourth application (App4) of the internal system. It can be understood that the process of the fifth application (App5) of the external system and the sixth application (App6) of the internal system must be sequentially processed and then delivered to the destination (Sinker).

Then, the processing unit 120, when a connection is required between the applications (App1, App2, App4, App6) of the internal system and the applications (App3, App5) of the external system, the application (App1, App2, App4, App6) of the internal system According to the connection order, the processed data is delivered to each application (App1, App2, App4, App6) to the application (App3, App5) of the external system (S130-S140).

At this time, the processing unit 120 encapsulates the processed data transmitted to each application (App1, App2, App4, App6) according to the connection order between the applications (App1, App2, App4, App6) of the internal system. After that, it can be transmitted to the application (App3, App5) of the external system.

This is a way to maintain the chaining method of the internal system as it is, and to protect the network chaining information set in the data to define the connection order between applications (App1, App2, App4, App6) in the internal system through encapsulation. It is for

For example, as shown in FIG. 5 previously illustrated, the data processed by the second application (App2) is transferred to the fourth application (App4) according to the order of connection between the applications (App1, App2, App4, and App6) of the internal system. It may be assumed that data transfer to the third application (App3) of the external system is required during the process.

In this case, network chaining information (App4) for indicating the fourth application (App4), which is the next connection sequence in the internal system, is set in the data processed by the second application (App2).

In this regard, the data processed by the second application (App2) may be encapsulated (destination address: IP1) and transmitted to the third application (App3) in order to maintain the network chaining information (App4) set in the data as it is. there is.

In addition, in the process of transferring the data processed by the fourth application (App4) to the sixth application (App4) according to the connection order between the applications (App1, App2, App4, and App6) of the internal system, the fifth application (App5) of the external system ), it can be assumed that data transfer is required.

In this case, network chaining information (App6) is set in the data processed by the fourth application (App4) to indicate the sixth application (App6), which is the next connection sequence in the internal system.

In this regard, the data processed by the fourth application (App4) may be encapsulated (destination address: IP2) and transmitted to the fifth application (App5) in order to maintain the network chaining information (App6) set in the data as it is. there is.

Furthermore, the processing unit 120 transfers the data processed by the applications (App3, App5) of the external system to the applications (App1, App2, App4, App6) of the internal system according to the remaining connection order of the internal system to be processed. Do (S150-180).

At this time, when the data processed by the applications (App3, App5) of the external system is encapsulated and received from the applications (App3, App5) of the external system, the processing unit 120 decapsulates the data. Depending on the network chaining information identified from the network chaining information, the decapsulated data can be transferred to the application in the next connection order within the internal system to be processed.

For example, as shown in FIG. 5 exemplified above, when the data processed by the third application (App3) is encapsulated and received as an internal system to decapsulate it, the network chaining set in the corresponding data The information (App4) can be checked, and accordingly, the decapsulated data (data processed by the third application) is transferred to the fourth application (App4), which is the next connection sequence in the internal system, as instructed by the network chaining information (App4). ) can be transmitted.

In addition, when the data processed by the fifth application (App5) is decapsulated as it is encapsulated and received into the internal system, it is possible to check the network chaining information (App6) set in the corresponding data. , The decapsulated data (data processed by the fifth application) can be delivered to the sixth application (App6), which is the next connection sequence in the internal system, as indicated by the network chaining information (App4).

Thereafter, when data processing is completed between the applications (App1, App2, App3, App4, App5, and App6), the processing unit 1200 transfers the processed data to the destination (Sinker) (S190-S200).

For example, as shown in FIG. 5 exemplified above, the data processed by the sixth application (App6) is data processing between applications (App1, App2, App3, App4, App5, App6) in which the internal system and the external system are linked. Upon completion, you can confirm that it is being delivered to the destination (Sinker).

As described above, according to the operating method of the network data chaining device 100 according to an embodiment of the present invention, chaining technology for constructing one network by combining virtual resource-based applications in a predetermined connection order Regarding, if a connection between the application (App1, App2, App4, App6) of the internal system and the application (App3, App5) of the external system is required, the chaining method of the internal system set in the data through L3-based encapsulation As it enables data processing in conjunction with external system applications (App3, App5) without changing the application logic, internal system applications (App1, App2, App4, App6) and external system applications (App3, It can be seen that the combination of connections between App5) and the resulting data flow can be dynamically changed.

Meanwhile, the operating method according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. - includes hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler. The hardware devices described above may be configured to act as one or more software modules to perform the operations of the present invention, and vice versa.

Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above embodiments, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the following claims. Anyone skilled in the art will extend the technical spirit of the present invention to the extent that various variations or modifications are possible.

According to the network data chaining device and the method of operating the network data chaining device according to the present invention, in relation to chaining technology for constructing a network by combining virtual resource-based applications in a predetermined connection order, the application of the internal system In terms of dynamically changing the combination of connection between the application of the external system and the resultant data flow, it is possible to market or sell the applied device, not just the use of the related technology, as it goes beyond the limits of the existing technology. In addition, it is an invention with industrial applicability because it can be clearly implemented in reality.

100: network data chaining device
110: confirmation unit 120: processing unit
130: acquisition unit

Claims (9)

In connection with the establishment of a network in which each virtual resource-based application is combined in a predefined connection order, a confirmation unit confirming that a connection is required between an application of an internal system and an application of an external system; and
A processing unit that sets network chaining information defining a connection sequence between applications in the internal system to data, encapsulates the data for which the network chaining information is set, and transmits the data to an application of the external system;
The processing unit,
When the data processed by the application of the external system is encapsulated and received from the application of the external system, the data is stored in the internal system according to the network chaining information identified from the data during decapsulation. A network data chaining device characterized in that it is transmitted to an application in the next connection order to be processed. According to claim 1,
The network data chaining device,
The network data chaining device further comprises an acquisition unit for acquiring network chaining information about network resources in which each virtual resource-based application is combined in an order of connection, from data. According to claim 1,
The network chaining information,
Includes a label added to a header field of the data to indicate an application of each connection sequence according to a connection sequence defined between applications in the internal system,
The processing unit,
As indicated by the label, data received from the source is transferred to a specific application in the internal system, and data processed in the specific application is transferred to another application that is adjacent to the specific application and in order of connection, and the internal system A network data chaining device characterized in that when data processing is completed between my applications, the processed data is delivered to the destination. According to claim 1,
The network chaining information,
In order to indicate an application of each connection sequence according to a connection sequence defined between applications in the network, a MAC address for each application updated as a destination MAC address of the data is included,
The processing unit,
The destination MAC address of the data received from the source is set to the MAC address of a specific application of the internal system and delivered to the specific application, and for data processed in the specific application, the destination MAC address is set to the specific application and the neighboring The network data chaining device characterized in that it updates the MAC address of another application, which is the next connection sequence, and transmits the MAC address to the other application, and when data processing between applications in the internal system is completed, the processed data is delivered to the destination. A confirmation step of confirming that a connection is required between an application of an internal system and an application of an external system in connection with building a network in which each virtual resource-based application is combined in a predefined connection order; and
A processing step of setting network chaining information defining a connection sequence between applications in the internal system to data, encapsulating the data for which the network chaining information is set, and transmitting the data to an application of the external system;
The processing step is
When the data processed by the application of the external system is encapsulated and received from the application of the external system, the data is stored in the internal system according to the network chaining information identified from the data during decapsulation. A method of operating a network data chaining device characterized in that it is transmitted to an application in the next connection order and processed. According to claim 5,
The method,
A method of operating a network data chaining apparatus, characterized in that it further comprises an acquisition step of acquiring network chaining information about network resources in which virtual resource-based applications are combined in order of connection, from data. According to claim 5,
The network chaining information,
Includes a label added to a header field of the data to indicate an application of each connection sequence according to a connection sequence defined between applications in the internal system,
The processing step is
As indicated by the label, data received from the source is transferred to a specific application in the internal system, and data processed in the specific application is transferred to another application that is adjacent to the specific application and in order of connection, and the internal system A network data chaining device characterized in that when data processing is completed between my applications, the processed data is delivered to the destination. According to claim 5,
The network chaining information,
In order to indicate an application of each connection sequence according to a connection sequence defined between applications in the network, a MAC address for each application updated as a destination MAC address of the data is included,
The processing step is
The destination MAC address of the data received from the source is set to the MAC address of a specific application of the internal system and delivered to the specific application, and for data processed in the specific application, the destination MAC address is set to the specific application and the neighboring The network data chaining device characterized in that it updates the MAC address of another application, which is the next connection sequence, and forwards it to the other application, and when data processing is completed between applications in the internal system, the processed data is delivered to the destination. how it works. A program combined with hardware and stored in a medium to execute each step of any one of claims 5 to 8.

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