KR102117497B1 - Network infrastructure building system and network infrastructiure building method - Google Patents

Abstract

The present invention relates to a network infrastructure construction system and a network infrastructure construction method for managing SDN for at least one domain of an IP domain, a transport domain, and an OSP domain to perform network infrastructure construction, and a network infrastructure according to an embodiment of the present invention The deployment system is an infrastructure manager that calculates the amount of expansion required for the construction of a line route in response to a request to construct a network infrastructure between a first branch and a second branch and an SDN management unit for managing at least one of IP SDN, transmission SDN, and OSP SDN. It may include.

Description

Network infrastructure building system and network infrastructure building method {NETWORK INFRASTRUCTURE BUILDING SYSTEM AND NETWORK INFRASTRUCTIURE BUILDING METHOD}

The present invention relates to a network infrastructure building system and a network infrastructure building method, and more specifically, a network infrastructure building system for performing network infrastructure construction by managing SDNs for at least one domain of an IP domain, a transport domain, and an OSP domain. It is about how to build a network infrastructure.

SDN (Software-Defined Networking) is one of the research fields that have attracted attention in recent years in the network field. By separating the control plane and the data plane operating in one physical network equipment, users can freely implement the desired functions like software. The goal is to implement a flexible and scalable network infrastructure.

The control through the SDN is performed by a centralized controller, and the switches deployed in each region are operated through the execution of the controller's flow rules. Initially, OpenFlow received much attention as a major technology and standardization was achieved.

For network control through SDN, it needs to be combined with NFV (Network Functions Virtualization) technology. In addition, there is a trend to combine SDN/NFV to provide flexible and scalable services to fields such as 5G (5th Generation) and IoT (Internet of Things) worldwide.

The network infrastructure for providing Internet services may consist of an Internet Protocol (IP) domain, a transport domain, and an OSP (Out Side Plant) domain. And each of these domains can be managed through SDN. For example, the IP domain is managed by the IP SDN, the transport domain is managed by the transport SDN, and the OSP domain can be managed by the OSP SDN.

However, in the network infrastructure, the IP domain, the transport domain, and the OSP domain are closely related to each other, and the actual network design and construction can work at the same time for each domain. There is this difficult problem.

Therefore, there is a need for a network infrastructure construction system and method capable of integrated control for each domain.

The network infrastructure construction system and the network infrastructure construction method according to the embodiment of the present invention reduce the installation investment cost required for the network infrastructure construction and improves the efficiency of the network infrastructure construction work by integrally controlling the IP domain, the transport domain, and the OSP domain. It has its purpose.

In addition, the network infrastructure construction system and the network infrastructure construction method according to an embodiment of the present invention are different from preventing a human error and reducing its operating cost by automatically calculating an increase amount or a line required for the network infrastructure construction by the system. There is a purpose.

In addition, the network infrastructure construction system and the network infrastructure construction method according to an embodiment of the present invention facilitates the network infrastructure construction work by automating the process of constructing the network infrastructure after ordering and construction are performed according to the calculated expansion and lines. There is another purpose.

In order to solve the above problems, the network infrastructure construction system according to an embodiment of the present invention performs at least one of topology analysis, transmission path analysis, and inventory analysis to perform an Internet Protocol (IP) Software Defined Network (SDN), transmission SDN. And SDN management unit for managing at least one of the OSP (Out Side Plant) SDN; And a line path for at least one of an IP domain, a transmission domain, and an OSP domain between the first point and the second point in response to a network infrastructure construction request between the first point and the second point, and the determined line path. An infrastructure manager that calculates the amount of expansion required for the construction of the project; It may include.

The SDN management unit IP SDN control unit for performing at least one of the topology analysis, the transmission path analysis and the inventory analysis for the IP SDN; A transmission SDN control unit for performing at least one of the topology analysis, the transmission path analysis, and the inventory analysis for the transmission SDN; And an OSP SDN control unit for performing at least one of the topology analysis and the inventory analysis for the OSP SDN. It may include.

The topology analysis of the IP SDN control unit may be a step of requesting and receiving topology information for the IP SDN.

The analysis of the transmission path of the IP SDN control unit may be a step of analyzing link capacity for the IP SDN and providing link information that needs to be expanded to perform the network infrastructure construction request.

The inventory analysis of the IP SDN control unit may be a step of requesting inventory information of a device requiring expansion and setting a line path after expansion when it is recognized that expansion is necessary through the transmission path analysis.

The IP SDN controller may repeatedly perform at least one of the topology analysis, the transmission channel analysis, and the inventory analysis for all links connected to the IP SDN.

The topology analysis of the transmission SDN control unit may be a step of requesting and receiving topology information for the transmission SDN.

The transmission path analysis of the transmission SDN control unit may be a step of analyzing link capacity for the transmission SDN to provide link information that needs to be expanded to perform the network infrastructure construction request.

The inventory analysis of the transmission SDN control unit may be a step of requesting inventory information of a device requiring expansion and setting a link path after expansion when it is recognized that expansion is necessary through the transmission path analysis.

The topology analysis of the OSP SDN control unit may be a step of requesting and receiving topology information for the OSP SDN.

The inventory analysis of the OSP SDN control unit may be a step of requesting inventory information of a device requiring expansion and setting a link path after expansion.

The infrastructure manager calculates the amount of extension required for the line route, provides the extension quantity information, and receives construction completion information for the extension quantity information, and may perform a network route building operation according to the determined line route. .

In addition, a network infrastructure construction method according to another embodiment of the present invention for solving the above problems is a method for constructing a network infrastructure in response to a network infrastructure construction request between the first point and the second point, for the IP SDN IP SDN analysis step of performing at least one of topology analysis, transmission path analysis and inventory analysis; A transmission SDN analysis step of performing at least one of the topology analysis, the transmission path analysis, and the inventory analysis for the transmission SDN; An OSP SDN analysis step of performing at least one of topology analysis, OS analysis, and inventory analysis for the OSP SDN; And calculating and providing extension amount information necessary for establishing a line path between the first point and the second point based on the analysis result of the IP SDN, the transmission SDN, and the OSP SDN. It may include.

The IP SDN analysis step includes performing a topology analysis on the IP SDN; Performing a transmission path analysis on the IP SDN; Performing an inventory analysis on the IP SDN; It may include.

The transmitting SDN analysis step includes performing a topology analysis on the transmitting SDN; Performing a transmission path analysis on the transmission SDN; Performing an inventory analysis on the transmitted SDN; It may include.

The OSP SDN analysis step includes performing a topology analysis on the OSP SDN; Performing an inventory analysis on the OSP SDN; It may include.

Calculating the amount of extension required for the line route, providing the extension quantity information, and receiving construction completion information for the extension quantity information, performing a construction operation for a network path corresponding to the extension quantity information; It may further include.

The present invention can reduce the installation investment cost required for the construction of the network infrastructure by integrally controlling the IP domain, the transport domain, and the OSP domain, and improve the efficiency of the network infrastructure construction work.

In addition, the network infrastructure construction system and the network infrastructure construction method according to an embodiment of the present invention can prevent human errors and reduce its operating cost by automatically calculating the amount or line required for network infrastructure construction by the system. It works.

In addition, the network infrastructure construction system and the network infrastructure construction method according to an embodiment of the present invention facilitates the network infrastructure construction work by automating the process of constructing the network infrastructure after ordering and construction are performed according to the calculated expansion and lines. It has the effect.

However, the effects that can be achieved according to an embodiment of the present invention are not limited to those mentioned above, and other effects not mentioned are those skilled in the art from the following description. Will be clearly understood.

1 is a view for explaining a network infrastructure construction system according to an embodiment of the present invention.
FIG. 2 is a view for explaining the configuration of FIG. 1 in more detail.
FIG. 3 is a diagram for explaining the SDN management unit of FIG. 2 in more detail.
4 is a view for explaining in detail the line analysis process by the OSP SDN control unit.
5 is a view for explaining a network infrastructure construction method according to another embodiment of the present invention.
6 is a view for explaining a network infrastructure construction method according to another embodiment of the present invention.

The present invention can be applied to various changes and can have various embodiments, and specific embodiments are illustrated in the drawings and will be described in detail through detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that the present invention includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, when it is determined that detailed descriptions of related known technologies may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted. In addition, the numbers used in the description process of the present specification (for example, first, second, etc.) are merely identification symbols for distinguishing one component from other components.

In addition, in this specification, when one component is referred to as "connected" or "connected" with another component, the one component may be directly connected to the other component, or may be directly connected, but in particular It should be understood that, as long as there is no objection to the contrary, it may or may be connected via another component in the middle.

Hereinafter, exemplary embodiments according to the technical spirit of the present invention will be described with reference to the drawings.

1 is a view for explaining a network infrastructure construction system 10 according to an embodiment of the present invention. Referring to FIG. 1, the network infrastructure building system 10 may include an SDN management unit 100 and an infrastructure manager 200.

The network infrastructure building system 10 may be interworked with an external business support system (BSS) or operational support system (OSS). The network infrastructure building system 10 may receive a network infrastructure building request between the first point and the second point through BSS or OSS. The network infrastructure construction system 10 may perform network infrastructure construction by performing analysis in response to the network infrastructure construction request, classifying each network domain, and controlling and managing the SDN managing the corresponding domain.

In the prior art, work was sequentially performed to receive an order for each domain and perform the work. However, according to an embodiment of the present invention, work per domain is performed in parallel through integrated control for each domain, thereby speeding up work. It has a faster effect.

Here, the first point and the second point may mean a point located at both ends of a section in which a network infrastructure is to be built, and information on the location or address of the first point and the second point is a network required by OSS or BSS. It can be included in the information of the infrastructure construction request.

The SDN management unit 100 of the network infrastructure building system 10 performs at least one of topology analysis, transmission path analysis, and inventory analysis to perform Internet Protocol (IP) SDN (Software Defined Network), transmission SDN, and OSP (Out Side Plant). ) Can manage at least one of the SDN.

The infrastructure manager 200 of the network infrastructure building system 10 may respond to a network infrastructure construction request between the first point and the second point in at least one of an IP domain, a transport domain, and an OSP domain between the first point and the second point. It is possible to determine a track path for the Korean and calculate the amount of expansion required for the construction of the determined track path.

FIG. 2 is a view for explaining the configuration of FIG. 1 in more detail.

Referring to FIG. 2, the SDN management unit 100 may include an IP SDN control unit 110, a transmission SDN control unit 120, and an OSP SDN control unit 130. And the SDN management unit 100 may be connected to the external IP SDN 20, the transmission SDN 30 and the OSP SDN 40. In more detail, the IP SDN control unit 110 of the SDN management unit 100 may be connected to the IP SDN 20, the transmission SDN control unit 120 may be connected to the transmission SDN 30, and the OSP SDN control unit 130 Can be connected to the OSP SDN (40).

The IP SDN 20 may be an SDN for controlling an IP domain, the transmission SDN 30 may be an SDN for controlling a transmission domain, and the OSP SDN 40 may be an SDN for controlling an OSP domain.

Here, the IP domain is composed of a switch and a router, and it can perform a role of determining a route of IP traffic and forwarding a data packet.

The transmission domain may be configured to include at least one of PTN, MSPP, POTN, OXC, and WDCS, and can perform a role of rapidly transmitting data packets to a more distant location using the same optical path for various service-specific optical signals. have.

The OSP domain consists of a line, an optical distribution box, and an optical jumper code, and may be a domain that physically connects devices.

Each SDN (20, 30, 40) may be composed of a North Bound Interface (NBI) such as RESTFul and RESTConf based on data modeling and a South Bound Interface (SBI) for automatic configuration of a real network device. In addition, each SDN (20, 30, 40) can store or check information about the topology, transmission path, and inventory of the domain managed by the corresponding SDN.

When receiving the infrastructure construction request, the infrastructure manager 200 may set a line path connecting the first point and the second point to establish a network infrastructure between the first point and the second point. Thereafter, the infrastructure manager 200 may determine which IP domain, transport domain, and OSP domain are included in the device required for the formation of the line path.

After the infrastructure manager 200 confirms the necessary devices for the track path, the network infrastructure construction system 10 may perform an analysis process for each domain through the SDN management unit 100.

FIG. 3 is a diagram for explaining the SDN management unit of FIG. 2 in more detail.

Referring to FIG. 3, the IP SDN control unit 110 may include a first topology analysis unit 111, a first transmission path analysis unit 112, and a first inventory analysis unit 113. In addition, the transmission SDN control unit 120 may include a second topology analysis unit 121, a second transmission path analysis unit 122, and a second inventory analysis unit 123. In addition, the OSP SDN control unit 130 may include a third topology analysis unit 131 and a third inventory analysis unit 132.

The first topology analysis unit 111 of the IP SDN control unit 110 may request topology information of the IP domain from the connected IP SDN 20. At this time, the topology information may mean information on the arrangement of routers and connection status of ports, such as FDF (Fiber Distribution Frame) constituting the IP domain. The first topology analysis unit 111 may check information on a router device and a port of the device included in a line path connecting the first point and the second point through topology analysis.

Hereinafter, for convenience of description, it will be described that the line path includes router devices of AIP, BIP, CIP, DIP, EIP, and FIP. As a result of the topology analysis of the first topology analysis unit 111, topology information about the AIP device-BIP device, BIP device-CIP device, CIP device-DIP device, EIP device-FIP device can be confirmed.

Thereafter, the first transmission path analyzer 112 may request information on a transmission path of the IP domain from the connected IP SDN 20. The first transmission path analysis unit 112 may check bands required for the router devices identified through the topology analysis and check transmission path information required for connection of the corresponding router device. Links that require additional expansion by analyzing the capacity of the link connecting the corresponding router device to the transmission line information and confirming that the information on the maximum capacity and the current utilization rate and the network infrastructure construction is completed and the capacity to be added exceeds the proper utilization rate. It may contain information about.

The first inventory analysis unit 113 may request information about the inventory of the IP domain from the connected IP SDN 20. The first inventory analysis unit 113 checks inventory information related to a corresponding device, when there is a need to expand a new line, as a result of analysis of a transmission line of the first transmission line analysis unit 112, checks the inventory information associated with the device. You can decide on expansion and new links.

In the above example, if the first transmission path analysis unit 112 determines that the link between the AIP device and the BIP device needs to be expanded, the first inventory analysis unit 113 requests inventory information of the corresponding AIP device and BIP device. In addition, if the AIP device or the BIP device has an idle unit or an idle port, a new line can be created with the corresponding facility. If the AIP device or the BIP device does not have an idle unit or an idle port, the first inventory analysis unit 113 may perform an extension request to newly expand the unit or port. If there is no space for adding a new unit or port to device A or device B, an extension request may be made to expand a new device (A' IP device or B'IP device).

The transmission path analysis and the inventory analysis of the first transmission path analysis unit 112 and the first inventory analysis unit 113 are performed by the first topology analysis unit 111 and iteratively repeated for each device on the track path. Can be performed with In the case of the above example, the first transmission path analysis unit 112 and the first inventory analysis unit 113 perform transmission path analysis and inventory analysis for all links between the AIP, BIP, CIP, DIP, EIP, and FIP devices. can do.

The infrastructure manager 200 may check information on the national office where each device is accommodated in order to check whether there is a transmission domain between links of an existing line or a line to be expanded in response to the information analyzed through the SDN management unit 100.

 The IP SDN control unit 110 can calculate the amount of expansion required for network infrastructure construction by performing the topology analysis, transmission path analysis, and inventory analysis for the IP SDN 20.

Thereafter, analysis of the transmission SDN 30 may be performed by the transmission SDN control unit 120 of the SDN management unit 100.

The second topology analysis unit 121 of the transmission SDN control unit 120 may request topology information of the transmission domain from the connected transmission SDN 30. At this time, the topology information is related to deployment and connection status of a multi-service transport platform (MSPP), a packet transport network (PTN), a packet optic transport network (POTN), and a reconfigurable optic add/drop multiplexer (ROADM) constituting a transport domain. The second topology analysis unit 121 may check information on the transmission topology from the starting station to the last station included in the line path connecting the first point and the second point through topology analysis. Can be.

Hereinafter, for convenience of description, the line path will be described by exemplifying that G, H, I, J, and K transmission devices are included. In the same situation as the example, as a result of the topology analysis of the second topology analysis unit 121, the second topology analysis unit 121 is a G transmission device-H transmission device, H transmission device-I transmission device, J transmission device-K It is assumed that the transmission devices are connected through a transmission section, and between the I transmission devices and the J transmission devices are connected through a non-transmission section. Since the non-transmission section cannot be connected through a transmission domain, it may mean a section that must be connected to a device in an IP domain.

Thereafter, the second transmission path analyzer 122 may request information on a transmission path of a transmission domain from the connected transmission SDN 30. The second transmission path analysis unit 122 may check transmission path information required for connection of a corresponding transmission device through the topology analysis. Links that require additional expansion by analyzing the capacity of the link connecting the transmission device to the transmission line information and confirming that the information on the maximum capacity and the current utilization rate and the network infrastructure construction is completed, so that the capacity to be added exceeds the appropriate utilization rate. It may contain information about.

The second inventory analysis unit 123 may request information about the inventory of the transmission domain from the connected transmission SDN 30. The second inventory analysis unit 123 checks the inventory information related to the corresponding transmission device to the device, unit, or port when there is a need to expand a new line as a result of analysis of the transmission channel of the second transmission channel analysis unit 122. You can decide on the expansion and new links.

In the above example, if the second transmission path analysis unit 122 determines that the link between the G transmission device and the H transmission device needs to be enlarged, the second inventory analysis unit 123 determines the corresponding G transmission device and the H transmission device. Request inventory information, and if there is an idle unit or an idle port in the G transmission device or the H transmission device, a new line can be created in the corresponding facility. If there is no idle unit or idle port in the G transmission device or the H transmission device, the second inventory analysis unit 123 may perform an extension request to newly expand the unit or port. If there is no space for adding a new unit or port to the G transmission device or the H transmission device, an extension request may be performed to add a new transmission device (G' transmission device or H'transmission device).

The transmission path analysis and the inventory analysis of the second transmission path analysis unit 122 and the second inventory analysis unit 123 are performed for the respective transmission devices on the track path confirmed by the second topology analysis unit 121 It can be performed repeatedly. In the case of the above example, the second transmission path analysis unit 122 and the second inventory analysis unit 123 perform transmission path analysis and inventory analysis for all links between G, H, I, J, and K transmission devices. Can be. The transmission SDN control unit 120 can calculate the amount of expansion required for the network infrastructure construction by performing the topology analysis, transmission path analysis, and inventory analysis for the transmission SDN 30.

Thereafter, the analysis of the OSP SDN 40 may be performed by the transmission OSP SDN control unit 130 of the SDN management unit 100.

The third topology analysis unit 131 of the OSP SDN control unit 130 may request topology information of the OSP domain from the connected OSP SDN 40. At this time, the topology information may mean information on the arrangement and connection status of line equipment constituting the OSP domain installed in each region. The third topology analysis unit 131 may check information on a line included in a line path connecting the first point and the second point through topology analysis.

4 is a diagram for explaining the line analysis by the OSP SDN control unit 130 in more detail. FIG. 4 shows a G transmission device, an H transmission device, an I transmission device, a J transmission device, and a K transmission device in a transmission domain of a line section from the AIP device at the first point to the BIP device at the second point according to the above example. It is illustrated that they are arranged in order.

The third topology analysis unit 131 includes three transmission sections and an I transmission device consisting of a G transmission device-H transmission device, an H transmission device-I transmission device, and a J transmission device-K transmission device for the OSP SDN 40. -You can request a design of a total of 6 sections including one non-transmission section consisting of a J transmission device and two lines required to connect an IP device and a transmission device.

That is, the third topology analysis unit 131 is an AIP device-G transmission device, G transmission device-H transmission device, H transmission device-I transmission device, I transmission device-J transmission device, J transmission device-K transmission device, You can request a line analysis for the 6 sections of the K transmission device-BIP device.

The third topology analysis unit 131 may select an optimal line route between different national offices based on the national offices in which each device is accommodated. If two or more devices are accommodated in the same national company, the third topology analysis unit 131 may further determine a line path between devices connected to each other within the same national company.

Thereafter, the third inventory analysis unit 132 of the OSP SDN control unit 130 may check the inventory information of the device in the section requiring the expansion if there is a section requiring expansion as a result of the topology analysis. As a result of the topology analysis of the third topology analysis unit 132, when the third line analysis unit 132 needs to expand a new line, it checks the inventory information related to the corresponding transmission device and expands the device, unit, or port. And decide on a new device.

If the IP SDN control unit 110, the transmission SDN control unit 120, and the OSP SDN control unit 130 perform the analysis process in the above-described method, the infrastructure manager 200 is configured to establish a network infrastructure between the first point and the second point. Calculation of the amount of extension required for the track route can be completed. Information on the determined expansion amount may be provided to an external BSS or OSS from the network infrastructure building system 10.

The OSS or BSS may place an order and construction for a device or port requested for expansion in response to reception of information on the amount of expansion.

When the construction is completed, the OSS or BSS can provide information on the construction completion to the network infrastructure building system 10.

Subsequently, the network infrastructure building system 10 may perform the construction work according to the determined line path. The infrastructure manager 200 may perform a cabling operation for a transmission section for the OSP SDN 40 through the SDN management unit 100. At this time, the line connection configuration or the line connection may be made manually by an operator or through automatic FDF equipment.

When the cabling operation is completed, the transmission SDN 30 of the transmission domain may recognize that the cable is connected through each transmission device and reconstruct the database for topology information and transmission intervals. At this time, finally, a list of target transmission equipment required in the transmission section may be determined.

When the cabling and target equipment are determined, the infrastructure manager 200 may request a cross-connection operation to the transmission SDN 30, and when the line operation of the transmission section is completed, a band or connection between equipments through testing You can check the status.

Thereafter, the infrastructure manager may request a cabling operation for the IP SDN (20). When cabling between IP devices is completed, connection of IP devices can be confirmed through Link Layer Discovery Protocol (LLDP) of the IP layer. At this time, the infrastructure manager 200 may reconfigure the network topology and the database of the IP device through Auto Discovery of the IP SDN 20.

When the connection to the IP domain is completed, the infrastructure manager 200 may confirm the configuration of the IP equipment through the IP SDN 30, and perform a test process to confirm this after completing the management information routing service setting and the like. . When the test process is completed, the infrastructure manager 200 may notify the completion of the construction of the network infrastructure to the OSS or BSS.

5 is a view for explaining a network infrastructure construction method according to another embodiment of the present invention. Referring to FIG. 5, the method for the infrastructure building system 10 to build a network infrastructure includes analyzing an IP SDN in response to a network infrastructure establishment request (S100), analyzing a transmission SDN (S200), and OSP SDN. It may include the step of analyzing (S300), the step of calculating and providing the expansion amount information (S400).

More specifically, in the IP SDN analysis step (S100), the IP SDN control unit 110 of the network infrastructure construction system 10 performs at least one of topology analysis, transmission path analysis, and inventory analysis for the IP SDN 20. It may be a step.

The IP SDN control unit 110 requests and receives topology information for the IP SDN 20 and analyzes link capacity of the transmission path for the IP SDN 20 to link information that needs to be expanded to perform a network infrastructure construction request Provides, and if it is recognized that the expansion of the IP device or the port is required through the analysis of the transmission path, it is possible to request the inventory information of the device requiring the expansion and to set the line path after the expansion.

In more detail, in the IP SDN analysis step (S100), the first topology analysis unit 111 of the IP SDN control unit 110 performs topology analysis on the IP SDN 20 (S110) and the first transmission path. The analysis unit 112 performs the analysis of the transmission path for the IP SDN 20 (S120) and the first inventory analysis unit 113 performs the inventory analysis for the IP SDN 20 (S130). It can contain.

And in the transmission SDN analysis step (S200), the transmission SDN control unit 120 requests and receives topology information for the transmission SDN 30, and analyzes the link capacity of the transmission path for the transmission SDN 30 to request network infrastructure construction It may be a step of providing link information that needs to be expanded for performance, requesting inventory information of a device that needs to be expanded, and establishing a link path after the expansion, when it is recognized that the expansion is necessary through transmission channel analysis.

More specifically, in the transmission SDN analysis step (S200), the second topology analysis unit 121 of the transmission SDN control unit 120 performs topology analysis on the transmission SDN 30 (S210) and the second transmission path The analysis unit 122 performs a transmission path analysis on the transmission SDN 30 (S220) and the second inventory analysis unit 123 performs an inventory analysis on the transmission SDN 30 (S230). It can contain.

And in the OSP SDN analysis step (S300), the OSP SDN control unit 130 requests and receives topology information for the OSP SDN 40, requests inventory information of a device that needs to be expanded, and establishes a link path after expansion. It can be a step.

More specifically, in the OSP SDN analysis step (S300), the third topology analysis unit 131 of the OSP SDN control unit 130 performs the topology analysis for the OSP SDN 40 (S310) and the third inventory analysis. The unit 133 may include a step (S320) of performing an inventory analysis on the OSP SDN 40.

In the step of calculating and providing the extended volume information (S400), the infrastructure manager 200 tracks the line between the first point and the second point based on the analysis results of the IP SDN 20, the transmission SDN 30, and the OSP SDN. It can mean the step of calculating the information on the amount of expansion required for the construction and providing it to OSS or BSS.

6 is a view for explaining a network infrastructure construction method according to another embodiment of the present invention. Referring to FIG. 6, it can be seen that the network infrastructure construction system 10 performs a construction operation in response to information on ordering and construction completion received from OSS or BSS.

In more detail, the network infrastructure building system 10 may perform the construction work according to the determined line path. The infrastructure manager 200 may perform a cabling operation for a transmission section for the OSP SDN 40 through the SDN management unit 100. At this time, the line connection configuration or the line connection may be made manually by an operator or through automatic FDF equipment.

When the cabling operation is completed, the transmission SDN 30 of the transmission domain may recognize that the cable is connected through each transmission device and reconstruct the database for topology information and transmission intervals. At this time, finally, a list of target transmission equipment required in the transmission section may be determined.

When the cabling and target equipment are determined, the infrastructure manager 200 may request a cross-connection operation to the transmission SDN 30, and when the line operation of the transmission section is completed, a band or connection between equipments through testing You can check the status.

Thereafter, the infrastructure manager may request a cabling operation for the IP SDN (20). When cabling between IP devices is completed, connection of IP devices can be confirmed through Link Layer Discovery Protocol (LLDP) of the IP layer. At this time, the infrastructure manager 200 may reconfigure the network topology and the database of the IP device through Auto Discovery of the IP SDN 20.

When the connection to the IP domain is completed, the infrastructure manager 200 may confirm the configuration of IP equipment through the IP SDN 30 and complete the management information routing service setting (Auto-Config process). Thereafter, an E2E (Edge to Edge) test process may be performed to confirm this. When the test process is completed, the infrastructure manager 200 may respond to the completion of the network infrastructure construction for the OSS or BSS.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can implement the present invention in other specific forms without changing its technical spirit or essential features. You will understand that there is. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

10: Network infrastructure building system
100: SDN management unit 110: IP SDN control unit
120: transmission SDN control unit 130: OSP SDN control unit
200: infrastructure manager

Claims (17)

IP SDN control unit to perform at least one of IP (Internet Protocol) SDN (Software Defined Network) topology analysis, channel analysis and inventory analysis, topology analysis for transport SDN, channel analysis and inventory analysis A SDN control unit including a transmission SDN control unit for performing and an OSP SDN control unit for performing at least one of topology analysis and inventory analysis for an OSP (Out Side Plant) SDN; And
In response to a request for establishing a network infrastructure between the first point and the second point, a line path for at least one of an IP domain, a transmission domain, and an OSP domain between the first point and the second point is determined, and the determined route path An infrastructure manager that calculates the amount of expansion required for construction; Network infrastructure construction system comprising a. delete According to claim 1, The topology analysis of the IP SDN control unit
Network infrastructure construction system characterized in that the step of requesting and receiving topology information for the IP SDN. According to claim 1, The transmission path analysis of the IP SDN control unit
Network infrastructure construction system characterized in that the step of providing the link information that needs to be expanded to perform the network infrastructure construction request by analyzing the link capacity for the IP SDN. According to claim 1, The inventory analysis of the IP SDN control unit
If it is recognized that the expansion is necessary through the analysis of the transmission path, requesting the inventory information of the device requiring the expansion, and establishing a network path after the network infrastructure construction system characterized in that the step. According to claim 1, wherein the IP SDN control unit
A network infrastructure building system characterized in that at least one of the topology analysis, the transmission path analysis, and the inventory analysis is repeatedly performed for all links connected to the IP SDN. According to claim 1, The topology analysis of the transmission SDN control unit
Network infrastructure construction system characterized in that the step of requesting and receiving topology information for the transmission SDN. According to claim 1, The transmission path analysis of the transmission SDN control unit
Network infrastructure construction system characterized in that the step of providing link information that needs to be expanded to perform the network infrastructure construction request by analyzing the link capacity for the transmission SDN. According to claim 1, The inventory analysis of the transmission SDN control unit
If it is recognized that the expansion is necessary through the analysis of the transmission path, requesting inventory information of the device requiring expansion, and establishing a link path after the expansion, the network infrastructure construction system characterized in that. According to claim 1, The topology analysis of the OSP SDN control unit
Network infrastructure construction system, characterized in that the step of requesting and receiving topology information for the OSP SDN. According to claim 1, The inventory analysis of the OSP SDN control unit
Network infrastructure construction system characterized in that it is a step of requesting the inventory information of the device that requires the expansion, and setting the link path after the expansion. The method of claim 1, wherein the infrastructure manager
Calculating the amount of extension required for the track route, providing information on the amount of expansion, and receiving construction completion information for the amount of expansion,
A network infrastructure building system characterized by performing a construction work on a network path according to the determined line path. In the method for establishing a network infrastructure in response to a request to build a network infrastructure between the first point and the second point,
An IP SDN analysis step of performing at least one of topology analysis, transmission path analysis, and inventory analysis for IP SDN;
A transmission SDN analysis step of performing at least one of the topology analysis, the transmission path analysis, and the inventory analysis for the transmission SDN;
An OSP SDN analysis step of performing at least one of topology analysis, OS analysis, and inventory analysis for OSP SDN; And
Calculating and providing extension amount information necessary for establishing a line path between the first point and the second point based on the analysis result of the IP SDN, the transmission SDN, and the OSP SDN; Network infrastructure construction method comprising a. The method of claim 13, wherein the IP SDN analysis step
Performing topology analysis on the IP SDN;
Performing a transmission path analysis on the IP SDN;
Performing an inventory analysis on the IP SDN; Network infrastructure construction method comprising a. The method of claim 13, wherein the transmitting SDN analysis step
Performing topology analysis on the transmitted SDN;
Performing a transmission path analysis on the transmission SDN;
Performing an inventory analysis on the transmitted SDN; Network infrastructure construction method comprising a. The method of claim 13, wherein the OSP SDN analysis step
Performing a topology analysis on the OSP SDN;
Performing an inventory analysis on the OSP SDN; Network infrastructure construction method comprising a. The method of claim 13,
Calculating the amount of extension required for the track route, providing information on the amount of expansion, and receiving construction completion information for the amount of expansion,
Performing a construction operation on a network path corresponding to the extension amount information; Network infrastructure construction method characterized in that it further comprises.

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