WO2015080525A1 - Sdn 환경에서 트래픽의 동적 제어를 위한 방법 및 장치 - Google Patents
Sdn 환경에서 트래픽의 동적 제어를 위한 방법 및 장치 Download PDFInfo
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- WO2015080525A1 WO2015080525A1 PCT/KR2014/011584 KR2014011584W WO2015080525A1 WO 2015080525 A1 WO2015080525 A1 WO 2015080525A1 KR 2014011584 W KR2014011584 W KR 2014011584W WO 2015080525 A1 WO2015080525 A1 WO 2015080525A1
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- traffic
- network device
- flow entry
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- controlling
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- 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
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- 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
- H04L41/0895—Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
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- 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
- H04L47/20—Traffic policing
Definitions
- the present invention relates to software defined networking technology, and more particularly, to a method and apparatus for dynamically controlling traffic in real time through interworking of a controller and a network device.
- SDN Software Defined Networking
- SDN manages the flow table that contains the identification information of the flow flow and the flow processing method, and when the actual user traffic occurs, the flow table checks the information about the flow entry that matches the flow.
- the packet processing operation method is determined according to the flow entry.
- Packet processing operations based on SDN include traffic forwarding, traffic drop, traffic modification, and traffic queuing.
- Traffic forwarding is the ability to export traffic to a specific output port.
- Traffic dropping is the ability to discard traffic without sending it out to an output port.
- the traffic change is a function for modifying information such as a traffic header such as VLAN tagging, and the traffic queuing function is used to schedule traffic by using a queue in the process of forwarding the traffic, thereby improving the quality of service (QoS) function.
- QoS quality of service
- the network device controls the network traffic through the flow table received from the controller, and in a situation where the flow table is not changed by the controller, the network device has only one traffic control policy for one flow.
- traffic cannot be dynamically controlled based on real-time traffic status information such as flow use duration, flow use packet count, and use packet amount for one flow.
- An object of the present invention for solving the above problems is to provide a method for dynamically controlling traffic in real time in an SDN environment.
- a method for dynamically controlling traffic including: generating at least one flow entry for controlling traffic of a network device; Delivering the generated at least one flow entry to a network device to control traffic of the network device, wherein the at least one flow entry includes threshold or target value information for the traffic for control of the traffic; It features.
- the threshold or target value information for the traffic may include at least one of target counter information of the traffic, target service class information for the traffic, and usage allowance information for the traffic.
- the controlling of the traffic of the network device may include delivering at least one flow entry to the network device to update the flow table of the network device; And applying a traffic control policy corresponding to the at least one flow entry included in the updated flow table to the network device.
- the traffic of the network device may be controlled by transferring at least one flow entry set based on the target counter information of the traffic to the network device.
- the target counter information of the traffic may be compared with the counter information of the traffic calculated by increasing the number of transport packets according to the traffic in the network device.
- controlling of the traffic of the network device may include controlling the first flow entry to be applied to the traffic whose counter information is equal to or less than the target counter information of the traffic, wherein the counter information of the traffic exceeds the target counter information of the traffic.
- the second flow entry may be controlled to be applied.
- the first flow entry may be deleted from the network device.
- the counter information of the traffic when the counter information of the traffic is a preset value, it may be controlled to provide an advertisement service through the corresponding traffic.
- the preset value may allow the corresponding traffic to designate the first traffic.
- the controlling of the traffic of the network device may include: delivering at least one flow entry to the network device, wherein the at least one flow entry includes target service class information for the traffic set based on the allowable amount information of the traffic; Traffic from the network device may be controlled according to the service target class information for the traffic.
- controlling of the traffic of the network device may control to use the premium service in a range in which the actual usage information of the traffic does not exceed the usage allowance information of the traffic.
- the controlling of the traffic of the network device may include applying a first flow entry for providing a general service to the traffic whose actual usage information of the traffic is less than or equal to the usage allowance information of the traffic, and using the actual usage of the traffic.
- a second flow entry may be applied to provide a premium service for traffic in which the information exceeds the allowance information for the traffic.
- the first flow entry may be deleted from the network device.
- a method for dynamically controlling traffic comprising: transmitting traffic generated from a user terminal to a controller; Receiving at least one flow entry generated by the controller in response to delivery of the traffic to control traffic generated at the user terminal, wherein the at least one flow entry is a threshold value for the traffic for controlling the traffic or Characterized in that the target value information.
- the traffic dynamic control method according to the present invention as described above can reduce the communication load between the network device and the controller and the system load of the network device, and can provide a real-time service through traffic dynamic control.
- FIG. 1 is an exemplary view for explaining a system for performing dynamic traffic control according to an embodiment of the present invention.
- FIG. 2 is a block diagram illustrating a configuration of a controller and a network device for performing dynamic traffic control according to an embodiment of the present invention.
- FIG. 3 is an exemplary diagram for describing a data structure of a flow table according to an embodiment of the present invention.
- FIG. 4 is a flowchart illustrating a method of updating a flow table of a network device according to an embodiment of the present invention.
- FIG. 5 is a flowchart illustrating a method for controlling traffic by a network device according to an embodiment of the present invention.
- FIG. 6 is a flowchart illustrating a method of controlling traffic by using counter information of the traffic according to an embodiment of the present invention.
- FIG. 7 is a flowchart illustrating a method of controlling traffic for providing an advertisement service according to an embodiment of the present invention.
- FIG. 8 is a flowchart illustrating a method of controlling traffic based on the usage amount of traffic according to an embodiment of the present invention.
- first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
- the controller referred to in the present invention is an integrated SDN controller, which may mean a function element for controlling related components (eg, a switch, a router, etc.) to control the flow of traffic. Can be.
- related components eg, a switch, a router, etc.
- controller is not limited to the physical implementation form or implementation location.
- a controller refers to a controller function entity defined by OpenFlow (ONF), Internet Engineering Task Force (IETF), European Telecommunication Standards Institute (ETSI) and / or International Telecommunication Union Telecommunication (ITU-T). can do.
- OpenFlow OpenFlow
- IETF Internet Engineering Task Force
- ETSI European Telecommunication Standards Institute
- ITU-T International Telecommunication Union Telecommunication
- the network device referred to in the present invention may refer to a functional element that substantially forwards, switches, or routes traffic (or packets), such as 'switch' or 'router'.
- the network device may be referred to as a switch or a router.
- a network device may mean a switch, a router, a switching element, a routing element, a forwarding element, and the like defined in ONF, IETF, ETSI, and / or ITU-T. Can be.
- parameters and / or message types defined in an operation process for a method for dynamic control of traffic in an SDN environment according to an embodiment of the present invention are not limited to a specific message described below.
- FIG. 1 is an exemplary view for explaining a system for performing dynamic traffic control according to an embodiment of the present invention.
- a user may use a plurality of services by using the plurality of user terminals 10 or by using one user terminal 10.
- the user terminal 10 may be connected to the service providing system 300 through a plurality of network devices 200-1 and 200-n.
- the service providing system 300 may be composed of a plurality of systems, and one service providing system 300 may provide one or more Internet services.
- the service providing system 300 may be configured by a service provider or an internet service provider.
- the network is composed of a plurality of network devices 200-1 and 200-n, and the controller 100 can control and manage a plurality of networks 200-1 and 200-n.
- the network device 200 may be in the form of a switch or router corresponding to a data plane of an SDN network, or may be in the form of a policy-based router corresponding to a policy enhancement point (PEP) of a policy-based network. It may be.
- the network device 200 may be in the form of an OpenFlow switch of an Open Networking Foundation (ONF) standardization organization or a network element or an I2RS agent in an I2RS protocol of an IETF.
- ONF Open Networking Foundation
- the controller 100 may be in the form of a controller system corresponding to a control plane of a SDN network, or may be in the form of a policy control system corresponding to a policy decision point (PDP) of a policy-based network.
- PDP policy decision point
- the controller 100 may be in the form of Topology Manager or I2RS Client in the OpenFlow controller of the ONF standardization organization or the I2RS protocol of the IETF.
- the controller 100 may be configured of a plurality of systems in the form of a master-master, a master-slave, or the like.
- one network device 200 may be controlled and managed by the plurality of controllers 100.
- one controller 100 may be connected to a plurality of application systems, and the application system may include a user management system 400, a service management system 500, and a terminal management system 600.
- the user management system 400 may set user identification information, a service name being used, a maximum usable traffic quantity (Quota), and the controller 100 monitors the traffic amount actually used by the user in real time, while the maximum usable traffic is available. When the traffic volume is reached, the traffic of the user can be controlled dynamically.
- the service management system 500 may set a service name, a maximum usable traffic amount for each service, and the like.
- the controller 100 monitors the traffic volume for each service in real time and monitors the corresponding service traffic when the maximum available traffic amount is reached. You can control it dynamically.
- services provided through the user terminal 10 include smart TV service, P2P service, VOD service, web hard.
- the terminal management system 600 may set a terminal type, a maximum usable traffic amount for each terminal, and the like.
- the controller 100 monitors the traffic volume for each terminal in real time and reaches the maximum usable traffic amount when the maximum amount of traffic is reached. Can be controlled dynamically.
- the type of the user terminal 10 includes a general PC, a smart TV, a smart phone, a smart pad, a game machine, a set top box, and the like.
- FIG. 2 is a block diagram illustrating a configuration of a controller and a network device for performing dynamic traffic control according to an embodiment of the present invention.
- the network device 100 may transfer a user flow to the controller 100, and the controller 100 may transmit a control signal to the network device 200 to interwork with each other.
- the network device 200 includes a control signal analyzer 210, a controller interlocker 220, a counter information manager 230, a flow table manager 240, a packet analyzer 250, a packet processor 260, and an input port. It may be configured to include a manager 270 and an output port manager 280.
- the control signal analyzer 210 may analyze the control signal received from the controller 100 through the controller interlocker 22.
- the counter information manager 230 may manage the counter information of the traffic. For example, the counter information manager 230 may compare the counter information included in the flow entry received from the controller 100 with a preset value.
- the flow table manager 240 may manage the flow table of the network device 200.
- the packet analyzer 250 may analyze the packet received from the user terminal 10, and the packet processor 260 may process the packet according to the information about the analyzed packet.
- the input port manager 270 may manage an input port of the network device 200
- the output port manager 280 may manage an output port of the network device 200.
- the controller 100 may include a dynamic control policy management unit 110, an application system interworking unit 120, a counter information management unit 130, a flow table management unit 140, a flow analysis unit 150, a control signal generator 160, and It may be configured to include a network device interworking unit 170.
- the dynamic control policy manager 110 may store and manage a traffic control policy for dynamic control of traffic.
- the application system interworking unit 120 may control a protocol to interoperate with application systems such as the user management system 400, the service management system 500, and the terminal management system 600.
- the counter information manager 130 may manage the counter information of the traffic. For example, the counter information manager 130 may increase the counter information based on the number of transport packets according to traffic, calculate the counter information, and store the counter information.
- the flow table manager 140 may store and manage flow tables of a plurality of networks stored in the controller 100.
- the flow analyzer 150 may analyze the flow received from the network device 200, and the control signal generator 160 may generate a control signal based on the analyzed flow information.
- the network device interworking unit 170 may control the protocol to communicate with the network device.
- the controller 100 may manage a real-time dynamic control policy to dynamically control user traffic in real time, and receive user profile information, service profile information, and terminal profile information from an application system. Can be used to configure dynamic control policies.
- the dynamic control policy may be referred to as a traffic control policy.
- the controller 100 may perform functions such as packet processing operation method determination, traffic path determination, QoS operation determination, and the like, and provide a network control policy to the network device 200.
- the network device 200 may actually control network traffic according to the network control policy received from the controller 100.
- the controller 100 and the network device 200 manage network control policies while exchanging flow tables.
- the flow table may include traffic flow identification information, flow processing method, counter information, and the like.
- the controller 100 may check flow entry information that matches the traffic in the flow table, and determine a packet processing operation method accordingly. At the same time, the counter information of the flow entry can be updated.
- Packet forwarding includes traffic forwarding, traffic drop, traffic modification, traffic queuing, and the like.
- Traffic forwarding is the ability to export traffic to a specific output port.
- Traffic dropping is the ability to discard traffic without sending it out to an output port.
- the traffic change is a function for modifying information such as a traffic header, such as VLAN tagging, and the traffic queuing function utilizes a queue in the process of forwarding traffic to schedule traffic to provide a QoS function. Can mean.
- the counter information may include information about the number of packets / packets transmitted in the flow, the number of packets / packets matching the flow, the number of packets / packets in which the traffic drop occurred, and the confirmation time for the last flow. Accordingly, the network device 200 may manage the changed counter information and periodically transmit the changed counter information to the controller 100.
- the controller 100 may make a request for adding, changing, or deleting information about a flow table of the network device 200 to the network device 200.
- the network device 200 may not add or change information on the flow table on its own and may delete the flow table on a limited basis.
- the network apparatus 200 may delete the flow entry in accordance with the expiration time of each flow entry in the flow table, or delete the flow entry when the flow entry has not been used for a predetermined time.
- the network device 200 may delete a flow entry according to the maximum number of flow tables that can be managed by the network device 200.
- the present invention provides various methods in which the network device 200 dynamically manages traffic by dynamically configuring a flow table by setting by the controller 100.
- traffic can be dynamically controlled based on real-time traffic status information such as the number of packets used, the period of use, and a specific time in addition to the traffic volume in one service flow.
- a case of dynamically controlling real-time by using the number of packets used for example, a case of dynamically controlling web (HTTP) traffic.
- HTTP web
- Only the first HTTP traffic used by the user through the web browser can be dynamically controlled by the specific web server instead of the original destination web server, and the subsequent HTTP traffic can be normally served by the destination web server. Can be.
- FIG. 3 is an exemplary diagram for describing a data structure of a flow table according to an embodiment of the present invention.
- the flow table data structure may be configured to include data such as Flow ID, Type, Length, Value, Max Packet, Max Bytes, Max Duration, Max Bandwidth, and the like. It can be configured as.
- Flow ID is identification information for identifying a flow entry
- Type is information for identifying a flow type, such as a terminal MAC or IP
- Value is an identification value of a flow corresponding to a type.
- Max Packet, Max Bytes, Max Duration, and Max Bandwidth may mean setting values for deleting a corresponding flow entry.
- Max Packet can delete a flow entry when the number of matching packets reaches the set value
- Max Bytes can delete the flow entry when the matching usage reaches the set value
- Max Duration is the duration of packet use.
- the flow entry can be deleted.
- Max Bandwidth may delete a flow entry when the packet bandwidth reaches a setting value.
- FIG. 4 is a flowchart illustrating a method of updating a flow table of a network device according to an embodiment of the present invention.
- a network device may request flow entry information from a controller using a Request-Entry-Packet / Bytes / Duration / Bandwidth message, and each message may include Max Packet, Max Bytes, Max Duration, Max Bandwidth, etc. Information may include
- the controller can analyze the requested message and send the flow entry information to the network device using Add-Entry-Packet / Bytes / Duration / Bandwidth messages.
- Each message can be configured as Max Packet, Max Bytes, Max Duration,
- the network device may respond with the Max Bandwidth setting.
- the network device can add and change flow entries in the flow table.
- the network device may request the Max Packet using the Request-Entry-Packet message (S411), and the controller may request to add the Max Packet using the Add-Entry-Packet message (S413). Accordingly, the network device may add a flow entry according to the Max Packet addition request (S415).
- the network device may request Max Bytes using the Request-Entry-Bytes message (S421), and the controller may request to add Max Bytes using the Add-Entry-Bytes message (S423). Accordingly, the network device may add a flow entry according to the Max Bytes addition request (S425).
- the network device may request the Max Duration using the Request-Entry-Duration message (S431), and the controller may request to add the Max Duration using the Add-Entry-Duration message (S433). Accordingly, the network device may add a flow entry according to the Max Duration addition request (S435).
- FIG. 5 is a flowchart illustrating a method for controlling traffic by a network device according to an embodiment of the present invention.
- the network device may check whether a flow entry that matches or corresponds to the corresponding traffic exists in the flow table of the network device (S520).
- the counter of the traffic may be increased by one (S530). For example, if the previous counter is n, it may be n + 1.
- the network device may store and manage counter information in a flow table. However, if there is no flow entry corresponding to the traffic, the traffic can be delivered to the controller (S521).
- the network device may compare the increased counter information with preset counter information N for deleting the flow entry (S540), and if there is a match, the network device deletes the corresponding flow entry (S550) and deletes the flow entry with the controller. Information may be informed (S560), and the packet according to the traffic may be output from the network device (S570).
- the preset counter information N is a value set by the controller using the flow entry, and may be referred to as target counter information of traffic. Therefore, the target counter information of the traffic may be compared with the counter information of the traffic calculated by increasing the number of transport packets according to the traffic in the network device.
- the network device may immediately output a packet for the corresponding traffic (S570). That is, if the counter information N, which is increased for deletion of the flow entry and the counter information N preset for comparison, does not match, the flow entry is not deleted and can be continuously used to control the next traffic.
- FIG. 6 is a flowchart illustrating a method of controlling traffic by using counter information of the traffic according to an embodiment of the present invention.
- the first traffic may flow into the network device from the user terminal (S611).
- the first traffic is traffic generated in the service flow A.
- the network device may receive the first traffic (S611), and may check whether a flow entry corresponding to the first traffic exists in the flow table of the network device, and if there is no flow entry corresponding to the first traffic, While providing the first traffic to the controller, it may request to provide a flow entry (S612). However, if there is a flow entry corresponding to the first traffic, it is of course possible to apply the traffic control policy according to the flow entry.
- the controller may generate a flow entry based on the traffic control policy corresponding to the first traffic, and request the network device to add the flow entry (S621 and S622).
- the traffic control policy presupposes that the first flow entry and the second flow entry exist for the service flow A.
- the first flow entry causes the first traffic to the Nth traffic to be forwarded to the service providing system (B), and the second flow entry forwards all the traffic that continues from the N + 1 th traffic to the service providing system (A). can do.
- N may mean target counter information of traffic.
- the controller may request to add the first flow entry to the network device (S621). Also, the controller may request to add the second flow entry to the network device (S622).
- the flow table of the network device can be updated and configured with the first flow entry and the second flow entry for the service flow A (S630).
- the first traffic temporarily stored in the network device may be matched to the first flow entry and forwarded to the service providing system B (S640). At the same time, the first flow entry may be updated by incrementing 1 in the counter information.
- the second traffic to the N-th traffic of the service flow (A) can be continuously introduced into the network device (S650).
- the network device receives from the second traffic to the Nth traffic (S650), checks whether there is a flow entry corresponding to the received traffic in the flow table of the network device, and as a result, matches the first flow entry (Matching) It can be confirmed that (S661).
- forwarding processing from the second traffic to the Nth traffic to the service providing system B may be performed (S662).
- the counter information of the first flow entry may be updated by N times.
- the network apparatus Since the network apparatus is set to delete the first flow entry when the counter information of the first flow entry is N, the first flow entry can be deleted from the flow table (S671), and the first flow entry is deleted by the controller. Can be notified (S672).
- the (N + 1) th traffic may flow into the network device from the user terminal (S681).
- the network device receives the (N + 1) th traffic (S681), checks whether a flow entry corresponding to the traffic received in the flow table exists, and as a result, matches the second flow entry (Matching). There is (S682). Accordingly, the network device may forward the (N + 1) th traffic to the service providing system A (S683).
- the controller controls the network device such that the first flow entry is applied to traffic for which the counter information of the traffic is equal to or less than the target counter information of the traffic, and the second flow for the traffic whose counter information exceeds the target counter information of the traffic.
- the network device can be controlled so that the entry is applied.
- FIG. 7 is a flowchart illustrating a method of controlling traffic for providing an advertisement service according to an embodiment of the present invention.
- the controller may make a control request in advance so that an unknown traffic may flow into the network device (S700).
- Unknown traffic may be HTTP traffic.
- An HTTP traffic destined for a specific web server (for example, target. Com) generated from the web browser of the user terminal may be introduced into the network device (S711).
- the web page corresponding to the user advertisement service may be displayed in the web browser of the user terminal instead of the web page received from the specific web server (target.com).
- the network device since the network device is set in advance to transmit Unknown traffic to the controller, the network device may transmit the corresponding HTTP traffic to the controller (S712).
- the controller may check the flow entry for controlling the HTTP traffic, and may request to add the identified flow entry to the network device (S721, S722).
- only the first HTTP traffic can be controlled to go to the advertisement service system, and after that, the HTTP traffic can be set to be delivered to the corresponding web server (target.com).
- IP tunneling technology between a network device and the advertisement service system may be used to forward the HTTP traffic to the advertisement service system to provide the advertisement service web page instead of the destination.
- the controller may transmit a first flow entry for forwarding the first HTTP traffic to the advertisement service system to the network device (S721).
- the controller may transmit a second flow entry to the network device to allow the second HTTP traffic to be normally forwarded to a specific web server (target.com) (S722).
- target.com a specific web server
- the network device may construct a flow table comprising two flow entries.
- the network device may check that the temporarily stored first HTTP traffic matches the first flow entry, and forward the first HTTP traffic to the advertisement service system (S730), through which the web browser of the user terminal may advertise. Show a service web page. At the same time, the network device may update the first flow entry by incrementing 1 in the counter information.
- the controller may control the network device to provide an advertisement service through the corresponding traffic, and the preset value may allow the corresponding traffic to designate the first traffic.
- the network device may delete the first flow entry from the flow table (S740) and may notify the controller that the first flow entry has been deleted ( S741).
- FIG. 8 is a flowchart illustrating a method of controlling traffic based on the usage amount of traffic according to an embodiment of the present invention.
- an embodiment of the present invention may provide a method for providing a premium service through traffic dynamic control based on user usage.
- a service is assumed to be provided in the form of basic service or premium service.
- a video service may be a premium service for high quality video.
- the information on the basic service type and the premium service type may be an example of service grade information.
- the controller describes a method of controlling a network device by setting target service class information for traffic based on usage allowance information for traffic.
- the target service class information for the traffic may be information for classifying a service class such as a basic service type and a premium service type based on the usage allowance information for the traffic.
- the service management system may request a service control including a service profile information, a service control policy, and the like in advance to the controller (S800).
- the network device When the traffic for the A service is generated from the user terminal and delivered to the network device (S811), the network device does not have information on whether to provide the traffic as a premium service or as a basic service. It may be (S812).
- the controller may check the flow entry for controlling the corresponding traffic, and may request the network device to add the flow entry (S821 and S822). At this time, the A service may provide a premium service until the 1GB usage, and may provide a basic service from the 1GB usage.
- the controller may request to add a first flow entry to the network device, which allows forwarding to a premium service up to 1 GB Quota (S821), and the network device may apply a service policy corresponding to the first flow entry.
- the controller may request to add a network device to the second flow entry that enables forwarding to the basic service when the 1GB Quota is exceeded (S822). In this way, the network device may update the flow table with two flow entries (S830).
- Traffic for the A service temporarily stored in the network device may be forwarded to a premium service as it is matched with the first flow entry (S840), thereby providing a premium service to a high quality image.
- the network device may update the actual usage information for the traffic by adding it to the first flow entry. That is, since the first flow entry is set to be deleted when the actual usage amount of the traffic reaches 1 GB, the A service may be forwarded to the premium service until the service usage amount reaches 1 GB.
- the network device may delete the first flow entry for providing the premium service (861), and notify the controller that the first flow entry has been deleted. It may be (S862).
- the traffic for the A service may be forwarded to the basic service (S873).
- the controller applies a first flow entry to provide general service for traffic whose actual usage for the traffic is less than or equal to the usage allowance information for the traffic, and the actual usage for the traffic exceeds the usage allowance information for the traffic.
- a second flow entry may be applied to provide a premium service.
- the traffic dynamic control method according to the present invention as described above can reduce the communication load between the network device and the controller and the system load of the network device, and can provide a real-time service through traffic dynamic control.
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Claims (24)
- 소프트웨어 정의 네트워킹 환경에서 컨트롤러가 트래픽을 제어하는 방법에 있어서,네트워크 장치의 트래픽을 제어하기 위한 적어도 하나의 플로우 엔트리를 생성하는 단계; 및상기 생성된 적어도 하나의 플로우 엔트리를 상기 네트워크 장치에 전달하여 상기 네트워크 장치의 트래픽을 제어하는 단계를 포함하고,상기 적어도 하나의 플로우 엔트리는 상기 트래픽의 제어를 위한 상기 트래픽에 대한 임계값 또는 목표값 정보를 포함하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 1에 있어서,상기 트래픽에 대한 임계값 또는 목표값 정보는,상기 트래픽의 목표 카운터 정보, 상기 트래픽에 대한 목표 서비스 등급 정보 및 상기 트래픽에 대한 사용 허용량 정보 중 적어도 하나를 포함하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 1에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 적어도 하나의 플로우 엔트리를 상기 네트워크 장치에 전달하여 상기 네트워크 장치의 플로우 테이블을 업데이트시키는 단계; 및상기 업데이트된 플로우 테이블에 포함되는 상기 적어도 하나의 플로우 엔트리에 상응하는 트래픽 제어 정책을 상기 네트워크 장치에 적용시키는 단계를 포함하는,트래픽 동적 제어 방법.
- 청구항 1에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 트래픽의 목표 카운터 정보를 기준으로 설정된 상기 적어도 하나의 플로우 엔트리를 상기 네트워크 장치에 전달하여 상기 네트워크 장치의 트래픽을 제어하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 4에 있어서,상기 트래픽의 목표 카운터 정보는,상기 네트워크 장치에서 상기 트래픽에 따른 전송 패킷수에 기반하여 증가시켜 산출한 상기 트래픽의 카운터 정보와 비교되는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 5에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 트래픽의 카운터 정보가 상기 트래픽의 목표 카운터 정보 이하인 트래픽에 대해서는 제1 플로우 엔트리가 적용되도록 제어하고,상기 트래픽의 카운터 정보가 상기 트래픽의 목표 카운터 정보를 초과한 트래픽에 대해서는 제2 플로우 엔트리가 적용되도록 제어하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 6에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 제1 플로우 엔트리를 적용시킨 후, 상기 제1 플로우 엔트리를 상기 네트워크 장치로부터 삭제시키는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 5에 있어서,상기 네트워크 장치로부터의 트래픽을 제어하는 단계는,상기 트래픽의 카운터 정보가 미리 설정된 값인 경우, 해당 트래픽을 통해 광고 서비스를 제공하도록 제어하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 7에 있어서,상기 미리 설정된 값은,상기 해당 트래픽이 첫 번째 트래픽을 지정하도록 하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 1에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 트래픽에 대한 사용 허용량 정보에 기반하여 설정된 상기 트래픽에 대한 목표 서비스 등급 정보를 포함하는 상기 적어도 하나의 플로우 엔트리를 상기 네트워크 장치로 전달하는 단계; 및상기 트래픽에 대한 서비스 목표 등급 정보에 따라 상기 네트워크 장치로부터의 트래픽을 제어하는 단계를 포함하는,트래픽 동적 제어 방법.
- 청구항 10에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 트래픽에 대한 실제 사용량 정보가 상기 트래픽에 대한 사용 허용량 정보를 초과하지 않는 범위에서 프리미엄 서비스를 사용하도록 제어하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 10에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 트래픽에 대한 실제 사용량 정보가 상기 트래픽에 대한 사용 허용량 정보 이하인 트래픽에 대해서는 일반 서비스를 제공하도록 하는 제1 플로우 엔트리를 적용시키고,상기 트래픽에 대한 실제 사용량 정보가 상기 트래픽에 대한 사용 허용량 정보를 초과한 트래픽에 대해서는 프리미엄 서비스를 제공하도록 하는 제2 플로우 엔트리를 적용시키는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 12에 있어서,상기 네트워크 장치의 트래픽을 제어하는 단계는,상기 제1 플로우 엔트리를 적용시킨 후, 상기 제1 플로우 엔트리를 상기 네트워크 장치로부터 삭제시키는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 소프트웨어 정의 네트워킹 환경에서 네트워크 장치가 트래픽을 제어하는 방법에 있어서,사용자 단말에서 발생한 트래픽을 컨트롤러로 전달하는 단계; 및상기 트래픽의 전달에 대한 응답으로 상기 컨트롤러에 의해 생성된 적어도 하나의 플로우 엔트리를 수신하여 상기 사용자 단말에서 발생한 트래픽을 제어하는 단계를 포함하고,상기 적어도 하나의 플로우 엔트리는 상기 트래픽의 제어를 위한 상기 트래픽에 대한 임계값 또는 목표값 정보를 포함하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 14에 있어서,상기 트래픽에 대한 임계값 또는 목표값 정보는,상기 트래픽의 목표 카운터 정보, 상기 트래픽에 대한 목표 서비스 등급 정보 및 상기 트래픽에 대한 사용 허용량 정보 중 적어도 하나를 포함하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 14에 있어서,상기 사용자 단말에서 발생한 트래픽 제어하는 단계는,상기 적어도 하나의 플로우 엔트리를 상기 컨트롤러로부터 수신하여 상기 네트워크 장치의 플로우 테이블을 업데이트하는 단계; 및업데이트된 상기 네트워크 장치의 플로우 테이블에 포함된 상기 적어도 하나의 플로우 엔트리에 상응하는 트래픽 제어 정책을 상기 사용자 단말에서 발생한 트래픽에 적용시키는 단계를 포함하는,트래픽 동적 제어 방법.
- 청구항 14에 있어서,상기 사용자 단말에서 발생한 트래픽을 제어하는 단계는,상기 트래픽의 목표 카운터 정보를 기준으로 설정된 상기 적어도 하나의 플로우 엔트리에 따라 상기 사용자 단말에서 발생한 트래픽을 제어하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 17에 있어서,상기 트래픽의 목표 카운터 정보는,상기 네트워크 장치에서 상기 트래픽에 따른 전송 패킷수에 기반하여 증가시켜 산출한 상기 트래픽의 카운터 정보와 비교되는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 18에 있어서,상기 사용자 단말에서 발생한 트래픽을 제어하는 단계는,상기 트래픽의 카운터 정보가 상기 트래픽의 목표 카운터 정보 이하인 트래픽에 대해서는 제1 플로우 엔트리가 적용하고,상기 트래픽의 카운터 정보가 상기 트래픽의 목표 카운터 정보를 초과한 트래픽에 대해서는 제2 플로우 엔트리가 적용하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 16에 있어서,상기 사용자 단말에서 발생한 트래픽을 제어하는 단계는,상기 제1 플로우 엔트리를 적용시킨 후, 상기 제1 플로우 엔트리를 상기 네트워크 장치로부터 삭제하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 18에 있어서,상기 사용자 단말에서 발생한 트래픽을 제어하는 단계는,상기 트래픽의 카운터 정보가 미리 설정된 값인 경우, 해당 트래픽을 통해 광고 서비스를 제공하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 14에 있어서,상기 사용자 단말에서 발생한 트래픽을 제어하는 단계는,상기 트래픽에 대한 사용 허용량 정보에 기반하여 설정된 상기 트래픽에 대한 서비스 목표 등급 정보를 포함하는 상기 적어도 하나의 플로우 엔트리를 상기 컨트롤러로부터 수신하는 단계; 및상기 트래픽에 대한 서비스 목표 등급 정보에 따라 상기 사용자 단말에서 발생한 트래픽을 제어하는 단계를 포함하는,트래픽 동적 제어 방법.
- 청구항 22에 있어서,상기 사용자 단말에서 발생한 트래픽을 제어하는 단계는,상기 트래픽에 대한 실제 사용량 정보가 상기 트래픽에 대한 사용 허용량 정보 이하인 트래픽에 대해서는 일반 서비스를 제공하도록 하는 제1 플로우 엔트리를 적용하고,상기 트래픽에 대한 실제 사용량 정보가 상기 트래픽에 대한 사용 허용량 정보를 초과한 트래픽에 대해서는 프리미엄 서비스를 제공하도록 하는 제2 플로우 엔트리를 적용하는 것을 특징으로 하는,트래픽 동적 제어 방법.
- 청구항 23에 있어서,상기 사용자 단말에서 발생한 트래픽을 제어하는 단계는,상기 제1 플로우 엔트리를 적용시킨 후, 상기 제1 플로우 엔트리를 상기 네트워크 장치로부터 삭제시키는 것을 특징으로 하는,트래픽 동적 제어 방법.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017039606A1 (en) * | 2015-08-31 | 2017-03-09 | Hewlett Packard Enterprise Development Lp | Control channel usage monitoring in a software-defined network |
CN111901195A (zh) * | 2020-07-23 | 2020-11-06 | 电子科技大学 | Sdn流量动态分配方法及系统 |
US20220329527A1 (en) * | 2021-04-09 | 2022-10-13 | Microsoft Technology Licensing, Llc | Architectures for disaggregating sdn from the host |
US11799782B2 (en) | 2021-05-31 | 2023-10-24 | Microsoft Technology Licensing, Llc | Scaling host policy via distribution |
US11799785B2 (en) | 2021-04-09 | 2023-10-24 | Microsoft Technology Licensing, Llc | Hardware-based packet flow processing |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100757076B1 (ko) * | 2006-03-27 | 2007-09-10 | 주식회사 라오넷 | 플로우량 조절기능을 갖는 네트워크 장비 |
KR20100045257A (ko) * | 2008-10-23 | 2010-05-03 | 주식회사 케이티 | 네트워크 트래픽 모니터링 방법 및 장치 |
KR20100072975A (ko) * | 2008-12-22 | 2010-07-01 | 주식회사 케이티 | 플로우 및 세션 기반의 네트워크 트래픽 관리 장치 및 그 방법 |
KR20100131150A (ko) * | 2009-06-05 | 2010-12-15 | 주식회사 케이티 | 인터넷 망에서 트래픽을 제어하는 방법 및 장치 |
KR20110001674A (ko) * | 2009-06-30 | 2011-01-06 | 주식회사 케이티 | 트래픽 이상 상태 판별 방법 |
-
2014
- 2014-11-28 WO PCT/KR2014/011584 patent/WO2015080525A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100757076B1 (ko) * | 2006-03-27 | 2007-09-10 | 주식회사 라오넷 | 플로우량 조절기능을 갖는 네트워크 장비 |
KR20100045257A (ko) * | 2008-10-23 | 2010-05-03 | 주식회사 케이티 | 네트워크 트래픽 모니터링 방법 및 장치 |
KR20100072975A (ko) * | 2008-12-22 | 2010-07-01 | 주식회사 케이티 | 플로우 및 세션 기반의 네트워크 트래픽 관리 장치 및 그 방법 |
KR20100131150A (ko) * | 2009-06-05 | 2010-12-15 | 주식회사 케이티 | 인터넷 망에서 트래픽을 제어하는 방법 및 장치 |
KR20110001674A (ko) * | 2009-06-30 | 2011-01-06 | 주식회사 케이티 | 트래픽 이상 상태 판별 방법 |
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WO2017039606A1 (en) * | 2015-08-31 | 2017-03-09 | Hewlett Packard Enterprise Development Lp | Control channel usage monitoring in a software-defined network |
CN111901195A (zh) * | 2020-07-23 | 2020-11-06 | 电子科技大学 | Sdn流量动态分配方法及系统 |
US20220329527A1 (en) * | 2021-04-09 | 2022-10-13 | Microsoft Technology Licensing, Llc | Architectures for disaggregating sdn from the host |
US11652749B2 (en) | 2021-04-09 | 2023-05-16 | Microsoft Technology Licensing, Llc | High availability for hardware-based packet flow processing |
US11757782B2 (en) * | 2021-04-09 | 2023-09-12 | Microsoft Technology Licensing, Llc | Architectures for disaggregating SDN from the host |
US11799785B2 (en) | 2021-04-09 | 2023-10-24 | Microsoft Technology Licensing, Llc | Hardware-based packet flow processing |
US11799782B2 (en) | 2021-05-31 | 2023-10-24 | Microsoft Technology Licensing, Llc | Scaling host policy via distribution |
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