公开(公告)号：US12026063B2

公开(公告)日：2024-07-02

申请号：US17522406

申请日：2021-11-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ji Young Kwak ,  Nam Seok Ko ,  Sung Hyuk Byun

IPC: G06F11/14 ,  G06F11/30 ,  H04L67/104

CPC classification number: G06F11/1464 ,  G06F11/1469 ,  G06F11/3006 ,  H04L67/1044

Abstract: Disclosed herein a method for configuration of semi-managed DHT based on NDN and system therefor. The method includes: managing and sharing manager nodes based on global information; generating a sub-range segment by partitioning a keyspace area, according to each group of the data peer nodes; managing the sub-range segment by distributing the sub-range segment corresponding to each group to data peer nodes of the each group; checking and analyzing liveness of the data peer node in the each group; estimating availability of the data peer nodes by predicting lifetime of data peer nodes through the checking and analyzing of liveliness; performing risk factor prediction that estimates data availability and sub-range management overhead; and performing a sub-range management decision at each of the manager nodes based on a result of the risk factor prediction, and performing a global stabilization decision required for global system stabilization.

公开(公告)号：US09948553B2

公开(公告)日：2018-04-17

申请号：US14923641

申请日：2015-10-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Young Kwak ,  Yong Yoon Shin ,  Sae Hoon Kang ,  Byung Yun Lee

IPC: H04L12/713 ,  H04L12/751 ,  H04L12/715

CPC classification number: H04L45/586 ,  H04L45/02 ,  H04L45/04 ,  Y02D30/30

Abstract: A system for distributed multi-domain routing control includes two or more software-defined network (SDN) controllers and virtual routers. The two or more SDN controllers create virtual topology information by collecting information about switches under the control thereof, exchange network information about a different virtual network, as well as create a routing path from a source terminal to a destination cross switch or a routing path from the destination cross switch to a destination terminal based on location identification information of the destination terminal and/or the virtual topology information. Then, the virtual routers manage communication between the different virtual tenant networks or communication between each virtual tenant network and an external network.

公开(公告)号：US09900238B2

公开(公告)日：2018-02-20

申请号：US14952832

申请日：2015-11-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sae Hoon Kang ,  Ji Young Kwak ,  Ji Soo Shin ,  Yong Yoon Shin

IPC: H04L12/28 ,  H04L12/751 ,  H04L12/721 ,  H04L12/741 ,  H04L12/713 ,  H04L12/715

CPC classification number: H04L45/02 ,  H04L45/38 ,  H04L45/586 ,  H04L45/64 ,  H04L45/74

Abstract: An original packet flow mapping apparatus and method based on an overlay network. The original packet flow mapping apparatus may include a packet-in message receiver, a flow controller, an overlay tunnel controller, and an interface, whereby flows can be identified even in a physical network segment on which an overlay link is implemented and then the flow can be mapped to an original flow.

公开(公告)号：US10728355B2

公开(公告)日：2020-07-28

申请号：US16043393

申请日：2018-07-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Young Kwak ,  Chung Lae Cho

IPC: G06F15/16 ,  H04L29/08 ,  H04L12/26 ,  H04L12/723 ,  H04L12/911 ,  H04L12/717 ,  H04L12/721 ,  H04L12/715

Abstract: A service stream control system includes at least one area controller configured to control a traffic path and content cashing within a domain (intra-area), a service content coordinator configured to determine and manage a caching location of content located in the domain, and a service stream controller configured to set an optimum path in accordance with a network traffic state by interworking with the at least one area controller and the service content coordinator, and forward target content corresponding to a content request with reference to a service stream forwarding graph generated based on the set path. Therefore, it is possible to enhance efficiency of a content-centric network (CCN).

公开(公告)号：US10063482B2

公开(公告)日：2018-08-28

申请号：US15233930

申请日：2016-08-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Young Kwak ,  Sae Hoon Kang ,  Hyun Joo Bae

IPC: H04L12/803 ,  H04L12/801 ,  H04L12/721

CPC classification number: H04L47/125 ,  H04L45/28 ,  H04L45/38 ,  H04L47/18

Abstract: Provided is a distributed service function (SF) forwarding system that applies the corresponding service function chain (SFC) to traffic classified by a plurality of service network (SN) controller instances based on an SN overlay structure. Therefore, by selectively combining and executing necessary network functions (SFs) according to a path and traffic made up of defined component services, it is possible to dynamically configure and control one network service.

公开(公告)号：US09507625B2

公开(公告)日：2016-11-29

申请号：US14800754

申请日：2015-07-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Byung Yun Lee ,  Yong Yoon Shin ,  Ji Young Kwak ,  Sae Hoon Kang ,  Sun Hee Yang

IPC: G06F9/455

CPC classification number: G06F9/45558 ,  G06F2009/45595

Abstract: An apparatus and method for generating a Software Defined Network (SDN)-based virtual network. The apparatus includes a network information generator and a virtual network generator, in which an SDN-based virtual network desired by a user may be generated efficiently by allocating physical resources to reflect various user demands.

Abstract translation: 一种用于生成基于软件定义网络（SDN）的虚拟网络的设备和方法。 该装置包括网络信息发生器和虚拟网络发生器，通过分配物理资源以反映各种用户需求，可以有效地生成用户期望的基于SDN的虚拟网络。

公开(公告)号：US10341429B2

公开(公告)日：2019-07-02

申请号：US15628425

申请日：2017-06-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ji Young Kwak ,  Sae Hoon Kang ,  Hyun Joo Bae ,  Gwang Woo Park ,  Sang Heon Pack ,  Ho Sung Baek

IPC: H04L29/08 ,  H04L12/24 ,  H04L12/721 ,  H04L12/26

Abstract: A method for configuring a service function path (SFP) for a software defined network (SDN) based service function chain (SFC) may comprise configuring a SFC which is a set of ordered service functions (SFs) by reflecting requirements of a flow flowing into a network; generating a primary SFP that is a path through which the flow is to be actually transmitted in the network according to the SFC; generating a secondary SFP against an error of the primary SFP; and controlling a transmission path through which the flow is transmitted to be at least one of the primary SFP and the secondary SFP.

公开(公告)号：US09705745B2

公开(公告)日：2017-07-11

申请号：US14702906

申请日：2015-05-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Sang Choi ,  Sang Sik Yoon ,  Sae Hoon Kang ,  Ji Young Kwak ,  Young Hwa Kim ,  Sae Hyong Park ,  Yong Yoon Shin ,  Ji Soo Shin ,  Sun Hee Yang ,  Byung Yun Lee ,  Byung Joon Lee

IPC: H04L12/24 ,  H04L12/26

CPC classification number: H04L41/0893 ,  H04L43/0817 ,  H04L43/16

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.