KR20140049115A - Method and system of supporting multiple controller in software defined networking - Google Patents

Method and system of supporting multiple controller in software defined networking Download PDF

Info

Publication number
KR20140049115A
KR20140049115A KR1020120113430A KR20120113430A KR20140049115A KR 20140049115 A KR20140049115 A KR 20140049115A KR 1020120113430 A KR1020120113430 A KR 1020120113430A KR 20120113430 A KR20120113430 A KR 20120113430A KR 20140049115 A KR20140049115 A KR 20140049115A
Authority
KR
South Korea
Prior art keywords
controller
network
software
sdn
defined networking
Prior art date
Application number
KR1020120113430A
Other languages
Korean (ko)
Inventor
신명기
남기혁
김형준
Original Assignee
한국전자통신연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to KR1020120113430A priority Critical patent/KR20140049115A/en
Publication of KR20140049115A publication Critical patent/KR20140049115A/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/02—Standardisation; Integration
    • H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/04—Interdomain routing, e.g. hierarchical routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering

Abstract

A method of supporting multiple controllers in a software-defined networking (SDN) environment may include dividing a network into network domains of at least one autonomous system (AS) unit; Setting up a controller in each of the divided network domains of at least one autonomous system unit; And communicating network connectivity between the at least one controller using border gateway protocol (BGP) peering.

Description

METHOD AND SYSTEM OF SUPPORTING MULTIPLE CONTROLLER IN SOFTWARE DEFINED NETWORKING}

The present invention relates to a system and method for supporting multiple controllers in a software defined networking (SDN) environment, and more particularly, to a technology for supporting multiple controllers by creating a virtual controller.

Software defined networking may include a software defined networking node and a centralized software controller having only hardware data transfer functions by separating network nodes into data transfer and control functions.

Embodiments of the present invention provide a method, apparatus and system for supporting multiple controllers having control functions in each of a plurality of network domains of an autonomous system (AS) unit in a software defined networking environment.

In addition, embodiments of the present invention provide a method, apparatus and system for configuring a virtual controller by using a virtualization technique.

In addition, embodiments of the present invention provide a method, apparatus, and system for communicating network connectivity between controllers of each network domain in a software defined networking environment.

In addition, embodiments of the present invention provide a method, apparatus and system for moving a virtual controller and a database (DB) when an error occurs in the controller.

According to an embodiment of the present invention, a method for supporting multiple controllers in a software-defined networking (SDN) environment includes: dividing a network into a network domain of at least one autonomous system (AS); Setting up a controller in each of the divided network domains of at least one autonomous system unit; And communicating network connectivity between the at least one controller using border gateway protocol (BGP) peering.

The setting of the controller in each of the network domains may include setting a single physical controller in each of the divided network domains of at least one autonomous system unit; And setting up at least one virtual controller in the single physical controller for each of the network domains of the at least one autonomous system unit.

The setting of the at least one virtual controller may include setting the virtual controller having a control function for each of the network domains of the at least one autonomous system unit.

The method may further include determining the virtual controller to distribute a request work of a software defined networking node among the at least one virtual controllers using a load balancer.

In the event of an error in the single physical controller, at least one virtual controller and database (DB) in the single physical controller is migrated from the network domain including the single physical controller to the remaining network domains except the network domain. The method may further include).

The communicating the network connectivity may include a gateway to forward packets in the at least one network domain by exchanging IP prefix information of each of the at least one controller using border gateway protocol peering between the at least one controller. Determining the network domain.

The setting of the controller may include maintaining the database storing the network information through at least one of a simple network management protocol (SNMP) or an application layer traffic optimization protocol (ALTO). It may include the step of setting.

According to an embodiment of the present invention, a method for supporting multiple controllers in a software-defined networking (SDN) environment includes: dividing a network into a network domain of at least one autonomous system (AS); And setting up multiple controllers including at least one virtual controller in each of the divided network domains of at least one autonomous system unit.

Setting up multiple controllers including the virtual controller may include setting up a single physical controller in each of the divided network domains of at least one autonomous system unit; And setting up at least one virtual controller in the single physical controller for each of the network domains of the at least one autonomous system unit.

The method may further include determining the virtual controller to distribute a request work of a software defined networking node among the at least one virtual controllers using a load balancer.

In the event of an error in the single physical controller, at least one virtual controller and database (DB) in the single physical controller is migrated from the network domain including the single physical controller to the remaining network domains except the network domain. The method may further include).

In a system for supporting multiple controllers in a software-defined networking (SDN) environment according to an embodiment of the present invention, a division unit for dividing a network into network domains of at least one autonomous system (AS) unit ; A setting unit configured to set a controller in each of the divided network domains of at least one autonomous system unit; And a communication unit for communicating network connectivity between the at least one controller using border gateway protocol (BGP) peering.

The setting unit sets a single physical controller in each of the divided network domains of the at least one autonomous system unit, and sets at least one virtual controller in the single physical controller for each of the network domains of the at least one autonomous system unit. virtual) You can configure the controller.

The communication unit determines the network domain including a gateway to forward packets among the at least one network domain by exchanging IP prefix information of each of the at least one controller using border gateway protocol peering between the at least one controller. Can be.

In a system for supporting multiple controllers in a software-defined networking (SDN) environment according to an embodiment of the present invention, a division unit for dividing a network into network domains of at least one autonomous system (AS) unit ; And a setting unit configured to set a multiple controller including a virtual controller in each of the divided network domains of the at least one autonomous system unit.

Embodiments of the present invention may provide a method, apparatus, and system for supporting multiple controllers having control functions in each of a plurality of network domains of an autonomous system (AS) unit in a software defined networking environment.

In addition, embodiments of the present invention may provide a method, apparatus and system for configuring a virtual controller by using a virtualization technology.

In addition, embodiments of the present invention may provide a method, apparatus, and system for communicating network connectivity between controllers of each network domain in a software defined networking environment.

In addition, embodiments of the present invention may provide a method, apparatus and system for moving a virtual controller and a database (DB) when an error occurs in the controller.

1 is a diagram illustrating a system supporting multiple controllers in a software defined networking environment according to an embodiment of the present invention.
2 is a view showing the structure of a controller according to an embodiment of the present invention.
3 is a diagram illustrating a request operation message processing procedure of a virtual controller according to an embodiment of the present invention.
4 is a diagram illustrating a migration operation according to an embodiment of the present invention.
5 is a flowchart illustrating a method of supporting multiple controllers in a software defined networking environment according to an embodiment of the present invention.
FIG. 6 is a flowchart specifically illustrating an operation 520 of setting the controller illustrated in FIG. 6.
7 is a block diagram illustrating a system supporting multiple controllers in a software defined networking environment according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. In addition, the same reference numerals shown in the drawings denote the same members.

1 is a diagram illustrating a system supporting multiple controllers in a software-defined networking (SDN) environment according to an embodiment of the present invention.

Referring to FIG. 1, a system supporting multiple controllers in a software defined networking environment may include a network domain 1 120 in an autonomous system (AS), a controller 1 110 configured in a network domain 1 120, and an autonomous system. Includes controller 2 (130) set in network domain 2 (140) in system unit, controller 2 (130) set in network domain 2 (140), controller 3 (150) in network domain 1 (120) and network domain 3 (160) in autonomous system unit. do.

Here, the controllers 110, 130, 150 have control functions for the respective network domains 120, 140, 160, and have a single physical controller and a plurality of virtual controllers within a single physical controller. Can be configured. A detailed description thereof will be given below.

Controller 1 110 stores network information from at least one of an existing network management function (SNMP) or an application layer traffic optimization protocol (ALTO) from the infrastructure of network domain 1 (120). It can be set to maintain the database 111. In this case, the network information may include an SDN node, a flow table of each node, a network topology in the domain, bandwidth, delay information, and fail link / node information.

In addition, the controller 1 110 may centrally set the path setting of the SDN node 1 121, the SDN node 2 122, the SDN node 3 123, and the SDN node 4 124 by using the information of the database. (113, 114, 115, 116).

Controller 2 130 and controller 3 150 also store network information from at least one of existing network management functions or application layer traffic optimization protocols from the infrastructure of network domain 2 140 and network domain 3 160, respectively. It can be set to maintain the database (131, 151) of, and can set the path setting of each of the SDN nodes centrally.

In addition, the controller 1 110 may set the paths of the network domain 1 120 of the controller 1 110, the network domain 2 140 of the controller 2 130, and the network domain 3 160 of the controller 3 150. By exchanging IP prefix information of each of controller 1 110, controller 2 130, and controller 3 150 using border gateway protocol (BGP) peering (170, 180) for connection, A network domain 3 (160) including a gateway to forward a packet (125) among the network domains (140, 160) may be determined to communicate network connectivity. In other words, the controllers 110, 130, 150 exchange connectivity with external networks by exchanging IP prefix information of the controllers of each of the plurality of network domains 140, 160 using the border gateway protocol peering 170, 180. We can collect information about which network domain's gateway is best for forwarding packets. Furthermore, the controllers 110, 130, and 150 may further exchange bandwidth and delay information, which are required to be interchanged, among the network information databases 111, 131, and 151 in addition to the IP prefix information.

Network routing according to an embodiment of the present invention transmits a request operation message of SDN node 1 121 to controller 1 110 when a new packet flows into SDN node 1 121 of network domain 1 120. 112, the SDN node 1 121, the SDN node 2 122, the SDN node 3 123, and the SDN node 4 124 can be set using the database 111 of the controller 1 110. have. For example, if the route is set up from SDN Node 1 121 to SDN Node 4 124 via SDN Node 2 122, then SDN Node 1 121 may be set up as an inlet gateway, and SDN Node 4 124 may be set as the exit gateway. In this case, whether a packet should be transmitted to a gateway of which network domain outside of the network domain 1 (120) is determined by the border gateway protocol peering (170) between the plurality of network domains (120, 140, 160) as described above. , 180 may be determined, and the packet may be transmitted to the gateway path 125.

2 is a view showing the structure of a controller according to an embodiment of the present invention.

2, a controller includes a virtual controller 1 210, a virtual controller 2 220, a virtual controller 3 230, a load balancer 240, and virtualization support software 250. The virtualization support software 250 may include a network database 251.

The method according to an embodiment of the present invention may propose a structure for configuring multiple virtual controllers 210, 220, and 230 in each controller of a network domain of an autonomous system unit. In other words, the virtualization support software 250 supporting the virtualization technology may be installed in a single physical controller, and the multiple virtual controllers 210, 220, and 230 may be set on the virtualization support software 250. In addition, the load balancer 240 may be installed to determine a virtual controller to distribute the request work of the SDN node among the multiple virtual controllers 210, 220, and 230. In this case, the virtual controllers 210, 220, and 230 may have the same control function as the physical controller.

For example, a request work message introduced into the controller is first sent to the load balancer 240 and then to the virtual controller 1 210, virtual controller 2 220, and virtual controller 3 230 by the load balancer 240. Settings may be requested sequentially or in balance. At this time, the controller shares the network database 251, which stores the SDN node, the flow table of each node, the network topology, bandwidth, delay information, and fail link / node information in the domain, with the virtual controllers 210, 220, and 230. By controlling to make it possible to prevent inconsistency with respect to multiple settings between the multiple controllers 210, 220, 230. A detailed description thereof will be given below.

3 is a diagram illustrating a request operation message processing procedure of a virtual controller according to an embodiment of the present invention.

Referring to FIG. 3, a procedure for processing a request work message of a virtual controller according to an embodiment of the present invention may be initiated from an SDN node 310 to provide virtualization support software 321, a load balancer 322, and multiple virtual controllers 323. Controlled by the controller 320 including a may be realized as the corresponding SDN node 330.

For example, the request work message 340 received from the SDN node 310 may be sent 350 to the load balancer 322 by the virtualization support software 321. In addition, the load balancer 322 may send the request work message sequentially or to the virtual controller 323 which is currently the least loaded (360), the virtual controller 323 controls the request work message to the SDN node 330 You can request treatment. Here, the virtual controller 323 may have the same control function and processing function as the physical controller.

4 is a diagram illustrating a migration operation according to an embodiment of the present invention.

Referring to FIG. 4, the method according to the embodiment of the present invention includes network domain 1 420 of an autonomous system unit, controller 1 410 configured in network domain 1 420, and controller 2 430 configured in each network domain. ) And controller 3 (440).

According to an embodiment of the present invention, when an error occurs in a single physical controller 410 in an environment in which control management is performed through a virtual controller in network domain 1 420, the VM of the virtualization technology from network domain 1 420. virtual machine migration technique to migrate virtual controllers and databases within a single physical controller 410 to controller 2 430 and controller 3 440 configured in the remaining network domain except network domain 1 420 (450, 460).

For example, when at least one of a physical error or a failure occurs in the controller 1 410, the virtual controller and the database configured in the controller 1 410 may be migrated to the controller 2 430 using the VM migration technique of the virtualization technology. It may be 450. Furthermore, the virtual controller and database migrated to controller 2 430 may be sequentially migrated to controller 3 440 (460).

5 is a flowchart illustrating a method of supporting multiple controllers in a software defined networking environment according to an embodiment of the present invention.

Referring to FIG. 5, a method according to an embodiment of the present invention divides a network into network domains of at least one autonomous system unit in a software defined networking environment (510).

In operation 520, a plurality of controllers including at least one virtual controller are set in each of the divided network domains of at least one autonomous system unit. In this case, a controller configured in each network domain may have a control function for the corresponding network domain, and may be configured to maintain a database for storing network information through at least one of an existing network management function or an application layer traffic optimization protocol. . Detailed description thereof will be described with reference to FIG. 6.

The method according to an embodiment of the present invention communicates network connectivity using border gateway protocol peering between at least one controller (530). Here, communicating network connectivity may determine a specific network domain including a gateway to forward packets among network domains by exchanging IP prefix information of each of the controllers.

In addition, it is determined whether an error in a single physical controller occurs (540).

As a result of the determination, when an error in the single physical controller occurs, at least one virtual controller and a database in the single physical controller are migrated from the network domain including the single physical controller to the remaining network domain except the network domain (550).

FIG. 6 is a flowchart specifically illustrating an operation 520 of setting the controller illustrated in FIG. 6.

Referring to FIG. 6, a method according to an embodiment of the present invention sets up a single physical controller in each of network domains of at least one divided autonomous system unit (610). A single physical controller can have control for each of the network domains.

In addition, multiple virtual controllers are set up in a single physical controller (620). In this case, a virtualization support software and a load balancer supporting virtualization technology may be set in a single physical controller. Here, the load balancer may determine a virtual controller to distribute the request work of the SDN node. Multiple virtual controllers may have the same control functions as physical controllers.

7 is a block diagram illustrating a system supporting multiple controllers in a software defined networking environment according to an embodiment of the present invention.

Referring to FIG. 7, a system supporting multiple controllers in a software defined networking environment according to an embodiment of the present invention includes a divider 710, a configurer 720, and a communicator 730.

The division unit 710 divides the network into network domains of at least one autonomous system unit.

The setting unit 720 sets a controller in each of the divided network domains of at least one autonomous system unit.

In addition, the setting unit 720 sets a single physical controller in each of the divided network domains of at least one autonomous system unit, and at least one in a single physical controller for each of the network domains of the at least one autonomous system unit. You can set up a virtual controller.

In addition, the setting unit 720 may set a virtual controller having a control function for each network domain of at least one autonomous system unit.

In addition, the setting unit 720 may determine a virtual controller to distribute the request work of the software-defined networking node among the at least one virtual controller using the load balancer.

In addition, the setting unit 720 may migrate at least one controller and database in the single physical controller from the network domain including the single physical controller to the remaining network domain except the network domain.

In addition, the setting unit 720 may set a controller to maintain a database that stores network information through at least one of an existing network management function or an application layer traffic optimization protocol.

The communication unit 730 communicates network connectivity using border gateway protocol peering between at least one controller.

In addition, the communication unit 730 exchanges IP prefix information of each of the at least one controller using border gateway protocol peering between at least one controller, thereby establishing the network domain including a gateway to deliver a packet among at least one network domain. You can decide.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command 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, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (16)

In a method for supporting multiple controllers in a software-defined networking (SDN) environment,
Dividing the network into network domains of at least one autonomous system (AS);
Setting up a controller in each of the divided network domains of at least one autonomous system unit; And
Communicating network connectivity between the at least one controller using border gateway protocol (BGP) peering
How to support multiple controllers in a software-defined networking (SDN) environment, including. The method of claim 1,
Setting the controller in each of the network domains
Setting up a single physical controller in each of the divided network domains of at least one autonomous system unit; And
Setting up at least one virtual controller within the single physical controller for each of the network domains of the at least one autonomous system unit
How to support multiple controllers in a software-defined networking (SDN) environment, including. 3. The method of claim 2,
Setting the at least one virtual controller
Setting up the virtual controller having a control function for each of the network domains of the at least one autonomous system unit; and supporting multiple controllers in a software-defined networking (SDN) environment. 3. The method of claim 2,
Determining a virtual controller to distribute the request work of a software defined networking node among the at least one virtual controllers using a load balancer
How to support multiple controllers in a software-defined networking (SDN) environment further comprising. 3. The method of claim 2,
If an error occurs in the single physical controller,
Migrating at least one virtual controller and database (DB) in the single physical controller from the network domain including the single physical controller to a network domain other than the network domain.
How to support multiple controllers in a software-defined networking (SDN) environment further comprising. The method of claim 1,
Communicating the network connectivity
Determining the network domain including a gateway to forward packets among the at least one network domain by exchanging IP prefix information of each of the at least one controller using border gateway protocol peering between the at least one controller.
How to support multiple controllers in a software-defined networking (SDN) environment, including. The method of claim 1,
Setting the controller
Configuring the controller to maintain a database storing the network information through at least one of a simple network management protocol (SNMP) or an application layer traffic optimization protocol (ALTO);
How to support multiple controllers in a software-defined networking (SDN) environment, including. In a method for supporting multiple controllers in a software-defined networking (SDN) environment,
Dividing the network into network domains of at least one autonomous system (AS); And
Setting up multiple controllers including at least one virtual controller in each of the divided network domains of at least one autonomous system unit
How to support multiple controllers in a software-defined networking (SDN) environment, including. 9. The method of claim 8,
Setting up multiple controllers including the virtual controllers
Setting up a single physical controller in each of the divided network domains of at least one autonomous system unit; And
Setting up at least one virtual controller within the single physical controller for each of the network domains of the at least one autonomous system unit
How to support multiple controllers in a software-defined networking (SDN) environment, including. 10. The method of claim 9,
Determining a virtual controller to distribute the request work of a software defined networking node among the at least one virtual controllers using a load balancer
How to support multiple controllers in a software-defined networking (SDN) environment further comprising. 10. The method of claim 9,
If an error occurs in the single physical controller,
Migrating at least one virtual controller and database (DB) in the single physical controller from the network domain including the single physical controller to a network domain other than the network domain.
How to support multiple controllers in a software-defined networking (SDN) environment further comprising. A computer-readable recording medium having recorded thereon a program for performing the method according to any one of claims 1 to 11. In a system that supports multiple controllers in a software-defined networking (SDN) environment,
A division unit for dividing the network into network domains of at least one autonomous system (AS) unit;
A setting unit configured to set a controller in each of the divided network domains of at least one autonomous system unit; And
A communication unit for communicating network connectivity between the at least one controller using border gateway protocol (BGP) peering
A system that supports multiple controllers in a software-defined networking (SDN) environment, including. 14. The method of claim 13,
The setting unit sets a single physical controller in each of the divided network domains of the at least one autonomous system unit, and at least one virtual controller in the single physical controller for each of the network domains of the at least one autonomous system unit. virtual A system that supports multiple controllers in a software-defined networking (SDN) environment that sets up a controller. 14. The method of claim 13,
The communication unit determines the network domain including a gateway to forward a packet among the at least one network domain by exchanging IP prefix information of each of the at least one controller using border gateway protocol peering between the at least one controller. A system that supports multiple controllers in a software-defined networking (SDN) environment. In a system that supports multiple controllers in a software-defined networking (SDN) environment,
A division unit for dividing the network into network domains of at least one autonomous system (AS) unit; And
Setting unit for setting a multiple controller including a virtual controller in each of the divided network domains of at least one autonomous system unit
A system that supports multiple controllers in a software-defined networking (SDN) environment, including.
KR1020120113430A 2012-10-12 2012-10-12 Method and system of supporting multiple controller in software defined networking KR20140049115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120113430A KR20140049115A (en) 2012-10-12 2012-10-12 Method and system of supporting multiple controller in software defined networking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120113430A KR20140049115A (en) 2012-10-12 2012-10-12 Method and system of supporting multiple controller in software defined networking

Publications (1)

Publication Number Publication Date
KR20140049115A true KR20140049115A (en) 2014-04-25

Family

ID=50654784

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120113430A KR20140049115A (en) 2012-10-12 2012-10-12 Method and system of supporting multiple controller in software defined networking

Country Status (1)

Country Link
KR (1) KR20140049115A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015174560A1 (en) * 2014-05-14 2015-11-19 주식회사 프리스티 Device and method for network control and inspection
KR101583247B1 (en) * 2014-08-31 2016-01-08 아주대학교산학협력단 Software defined networking based network, operating method thereof, network device
KR20160006588A (en) * 2014-07-09 2016-01-19 한국전자통신연구원 Sdn-based autonomic control and management system and method for large-scale virtual networks
KR20160050897A (en) * 2014-10-31 2016-05-11 에스케이텔레콤 주식회사 Access device for network construction and method for providing WLAN service thereof
KR20160105222A (en) 2015-02-27 2016-09-06 에스케이텔레콤 주식회사 Sdn-based network monitoring apparatus and method thereof
KR20160109216A (en) * 2015-03-10 2016-09-21 한국전자통신연구원 Method and apparatus for configuring virtual network
US20170142223A1 (en) * 2015-11-16 2017-05-18 Electronics And Telecommunications Research Institute Software-defined networking multi-orchestrator system
CN108989232A (en) * 2017-05-31 2018-12-11 中兴通讯股份有限公司 Message interaction method and device in SDN
CN109921989A (en) * 2014-07-31 2019-06-21 华为技术有限公司 A kind of method and apparatus that BGP logical topology generates
CN111541560A (en) * 2014-05-12 2020-08-14 华为技术有限公司 Method and apparatus for partial software defined network switch replacement in IP networks

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111541560B (en) * 2014-05-12 2022-06-14 华为技术有限公司 Method and apparatus for partial software defined network switch replacement in IP networks
CN111541560A (en) * 2014-05-12 2020-08-14 华为技术有限公司 Method and apparatus for partial software defined network switch replacement in IP networks
WO2015174560A1 (en) * 2014-05-14 2015-11-19 주식회사 프리스티 Device and method for network control and inspection
KR20160006588A (en) * 2014-07-09 2016-01-19 한국전자통신연구원 Sdn-based autonomic control and management system and method for large-scale virtual networks
CN109921989A (en) * 2014-07-31 2019-06-21 华为技术有限公司 A kind of method and apparatus that BGP logical topology generates
US11343153B2 (en) 2014-07-31 2022-05-24 Huawei Technologies Co., Ltd. BGP logical topology generation method, and device
CN109921989B (en) * 2014-07-31 2021-09-21 华为技术有限公司 BGP logical topology generation method and equipment
KR101583247B1 (en) * 2014-08-31 2016-01-08 아주대학교산학협력단 Software defined networking based network, operating method thereof, network device
KR20160050897A (en) * 2014-10-31 2016-05-11 에스케이텔레콤 주식회사 Access device for network construction and method for providing WLAN service thereof
KR20160105222A (en) 2015-02-27 2016-09-06 에스케이텔레콤 주식회사 Sdn-based network monitoring apparatus and method thereof
KR20160109216A (en) * 2015-03-10 2016-09-21 한국전자통신연구원 Method and apparatus for configuring virtual network
US20170142223A1 (en) * 2015-11-16 2017-05-18 Electronics And Telecommunications Research Institute Software-defined networking multi-orchestrator system
CN108989232A (en) * 2017-05-31 2018-12-11 中兴通讯股份有限公司 Message interaction method and device in SDN

Similar Documents

Publication Publication Date Title
KR20140049115A (en) Method and system of supporting multiple controller in software defined networking
US10949233B2 (en) Optimized virtual network function service chaining with hardware acceleration
EP3063903B1 (en) Method and system for load balancing at a data network
JP5976942B2 (en) System and method for providing policy-based data center network automation
US10938660B1 (en) Automation of maintenance mode operations for network devices
US11201782B1 (en) Automation of maintenance mode operations for network devices
Ejaz et al. Traffic load balancing using software defined networking (SDN) controller as virtualized network function
RU2651149C2 (en) Sdn-controller, data processing center system and the routed connection method
US10511524B2 (en) Controller communications in access networks
US8645546B2 (en) Cloud service control and management architecture expanded to interface the network stratum
EP3097668A1 (en) Partial software defined network switch replacement in ip networks
US9485187B2 (en) Intelligent software-defined networking based service paths
WO2014120145A1 (en) Controlling a topology of a network
RU2683850C1 (en) Network control device, network control method and recording medium for a program
EP3105683B1 (en) Using unified api to program both servers and fabric for forwarding for fine-grained network optimizations
Park et al. Janus: Design of a software-defined infrastructure manager and its network control architecture
US11706146B1 (en) Directing network traffic using local routing decisions with a global overview
US11405284B1 (en) Generating network link utilization targets using a packet-loss-versus-link utilization model
US11411855B1 (en) Computation of ranked path options in networks
WO2017169947A1 (en) Operation device, communication system, and update method
RU2775146C1 (en) Method for automated provision of a virtual channel by a communication operator between data processing centers
JP6304493B2 (en) Virtual machine migration method, migration apparatus and program
KR20190063231A (en) Data center management system based on sdn, and method thereof
US10958560B2 (en) Common abstraction for network traffic migration
Lin et al. Egret: simplifying traffic management for physical and virtual network functions

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination