Abstract: The present disclosure relates to a method for autonomous management and control in a quantum key distribution network and a device therefor. A method performed by an apparatus including a first entity in a QKDN supporting AMC according to one aspect of the present disclosure may include: collecting first data from a second entity; determining whether a first ML model available for analyzing the first data exists; generating a control action, wherein i) if the first ML model exists, the control action is generated by analyzing the first data using the first ML model, and ii) if the first ML model does not exist, the control action is generated by analyzing second data collected from the second entity using a second ML model received from a third entity; and requesting the second entity to apply the control action.

Abstract: The present disclosure relates to a method and apparatus for control action based on software-defined networking associated with quantum key distribution network (QKDN) management in a quantum key distribution network. A method for performing a control action associated with QKDN management in a QKDN according to an embodiment of the present disclosure may include: receiving, by a first control entity, control action information from a QKDN manager; determining, by the first control entity, a target of the control action based on the control action information; classifying, by the first control entity, the control action sequentially as one of a routing or rerouting-related control action, a provisioning-related control action, a protection or recovery-related control action, and a charge-related control action based on the target of the control action; and transmitting, by the first control entity, information for performing the control action for a target associated with the classified control action.

Abstract: An apparatus for evaluating the quality of digital human content included in a source input are disclosed. The apparatus includes a first entity determines a provisioning plan based on available resources matching a service level agreement (SLA)-based user's provisioning request. The apparatus further includes a second entity provision resources of the QKDN based on the provisioning plan, and re-provision the provisioned resources in response to receiving a re-provisioning request or a re-optimization request for the provisioned resources from other entities.

Abstract: The present disclosure relates to a method and apparatus for key relay control based on software-defined networking in a quantum key distribution network. A method of controlling key relay in a quantum key distribution network (QKDN) according to an embodiment of the present disclosure includes: receiving, by a first control entity, a key relay route request from a key management (KM) layer; determining, by the first control entity, whether or not key relay is associated with a plurality of resource groups; and, transmitting a key relay route request from the first control entity to a second control entity, when key relay is associated with the plurality of resource groups, wherein key relay route information produced by the second control entity may be provided to the KM layer.

Abstract: The present disclosure relates to a method and apparatus for control action based on software-defined networking associated with quantum key distribution network (QKDN) management in a quantum key distribution network. A method for performing a control action associated with QKDN management in a QKDN according to an embodiment of the present disclosure may include: receiving, by a first control entity, control action information from a QKDN manager; determining, by the first control entity, a target of the control action based on the control action information; classifying, by the first control entity, the control action sequentially as one of a routing or rerouting-related control action, a provisioning-related control action, a protection or recovery-related control action, and a charge-related control action based on the target of the control action; and transmitting, by the first control entity, information for performing the control action for a target associated with the classified control action.

Abstract: An operation method of a first device in a communication system supporting network slicing may comprise receiving a first message requesting capacity planning of a network slice from a second device; obtaining information required for the capacity planning; transmitting a second message including the required information to a third device supporting a function of the capacity planning; receiving a third message including a result of performing the capacity planning from the third device; and performing a reallocation operation or a modification operation of the network slice based on the result of performing the capacity planning.

Abstract: An operation method of a first device in a communication system supporting network slicing may comprise receiving a first message requesting capacity planning of a network slice from a second device; obtaining information required for the capacity planning; transmitting a second message including the required information to a third device supporting a function of the capacity planning; receiving a third message including a result of performing the capacity planning from the third device; and performing a reallocation operation or a modification operation of the network slice based on the result of performing the capacity planning

Abstract: An apparatus for collecting adaptive flow statistics data includes a node type collector to access a network node and collect flows; a flow type calculator to calculate two or more flow types according to a flow duration length and request the node type collector to collect flow statistics data of a corresponding type of a flow at every collection period that corresponds to each of the two or more flow types; and a flow statistics storage to store the two or more flow types calculated by the flow type calculator, and store the flow statistics data, collected by the node type collector, for each of the two or more flow types in a table.

Abstract: A multi-layer management system for a software defined network (SDN) is disclosed. The multi-layer management system comprises an external relationship management functional component (ERM-FC) interworking with an external management entity and providing management functions to the external management entity, a SDN application layer management functional component (ALM-FC) for management of resources of a SDN application layer (SDN-AL); a SDN resource layer management functional component (RLM-FC) for management of resources of a SDN resource layer (SDN-RL); a SDN control layer management functional component (CLM-FC) for management of resources of a SDN control layer (SDN-CL); and a multi-layer management orchestration functional component (MMO-FC) for management of SDN application and service and inter-layer resource management.

Abstract: A system and method for virtualizing SDN-based network monitoring. The system for includes: an information collector, a monitoring component, an information converter, and a resource allocator, in which a user-defined virtual monitor is included so that integrated monitoring may be performed, and expandability may be guaranteed to dynamically respond to a user's, demands.

Abstract: An apparatus for collecting adaptive flow statistics data includes a node type collector to access a network node and collect flows; a flow type calculator to calculate two or more flow types according to a flow duration length and request the node type collector to collect flow statistics data of a corresponding type of a flow at every collection period that corresponds to each of the two or more flow types; and a flow statistics storage to store the two or more flow types calculated by the flow type calculator, and store the flow statistics data, collected by the node type collector, for each of the two or more flow types in a table.

Abstract: A system for controlling a carrier virtual network is disclosed. The system includes at least one virtual network controller for controlling resources of a carrier virtual network based on customer request information received from a customer network controller, and at least one physical network controller for controlling resources of a carrier physical network based on a service profile received from the at least one virtual network controller. The at least one virtual network controller interworks with the at least one physical network controller in a one to one, one to N (N is an integer equal to or larger than 2), or N to one correspondence.

Abstract: A system and method for virtualizing SDN-based network monitoring. The system for includes: an information collector, a monitoring component, an information converter, and a resource allocator, in which a user-defined virtual monitor is included so that integrated monitoring may be performed, and expandability may be guaranteed to dynamically respond to a user's, demands.

Abstract: There is provided a high-speed IP flow mediation apparatus using a network processor. The apparatus includes a server collecting flow information regarding IP traffic on a high-speed line and a network processor board analyzing the collected information according to Internet applications using a network processor, and transferring the analyzed flow information to a plurality of flow analysis systems.

Abstract: An apparatus and method for airborne self-powered wireless communication is provided. The airborne wireless communication apparatus is fixed to an airborne platform including an aerostat, which maintains a constant altitude in air, uses an airborne wind power turbine as a power generating source, and supports an air-to-air wireless communication and an air-to-ground wireless communication by use of a mesh network.

Abstract: There is provided a method and apparatus for controlling traffic according to user that includes a statistics processing unit measuring traffic volume used according to user, calculating a traffic variation ?V by using the measured traffic volume, and updating a traffic user list by comparing the calculated traffic variation ?V; a traffic detecting unit determining whether abnormal traffic is generated in a network and transferring a control command according to priority in the traffic user list; and a packet controlling unit controlling a user's traffic according to the control command received from the traffic detecting unit.

Abstract: A method of generating IP traffic flow based on a time bucket divides, in order to generate flows using all IP packets arriving in a preset time bucket, a previous time bucket flow table (PTBFT) and a current time bucket flow table (CTBFT) with reference to a current time when the flows are generated using IP packets collected from a high-speed line in a flow generating unit. Accordingly, the method allows real-time analysis of flows.

Abstract: An apparatus and method for merging Internet traffic mirrored from multiple links are provided. A merged flow can be generated on the Internet having a characteristic of asymmetrical route through a technology of merging the traffic according to an identical characteristic based on correlation analysis using internet traffic mirrored from several spots of multiple links connected to a network to facilitate general analysis and specific application analysis of traffic.

Abstract: Provided are a traffic capture apparatus and a traffic analysis apparatus, system and method. The traffic analysis system generates a two-way flow based on one or more packets captured through a network and associates the two-way flow with a corresponding application program by using information about transmission directions and payload sizes of payload packets, each of which has a payload in the two-way flow.

Abstract: A method and apparatus for aggregating single packets in a single session are disclosed. If the amount of single packets in a single session exceeds a threshold value, it is detected that attack traffic is being inputted and the single packets in the single session are aggregated into a single flow, thus preventing degradation of a network performance due to the single packets in the single session.