公开(公告)号：US20220147462A1

公开(公告)日：2022-05-12

申请号：US17524441

申请日：2021-11-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Baik-Song AN ,  Hong-Yeon KIM ,  Sang-Min LEE ,  Myung-Hoon CHA

IPC: G06F12/0891 ,  G06F12/0882 ,  G06F3/06 ,  G06F9/455

Abstract: Disclosed herein are a hybrid memory management apparatus and method for an many-to-one virtualization environment. The hybrid memory management apparatus is implemented in an inverse-virtualization-based multi-node computing system including multiple physical nodes, each containing hybrid memory in which DRAM and NVRAM coexist, a virtual machine, and hypervisors, and includes memory for storing at least one program, and a processor for executing the program, wherein the program includes a remote request service module for processing a page-related request with reference to the hybrid memory and responding to the page-related request by transmitting a result of processing, an internal request service module for processing an internal page fault request with reference to a hybrid memory and responding to the internal page fault request, and a data arrangement module for responding to an inquiry request for a location at which a newly added page is to be arranged in the hybrid memory.

公开(公告)号：US20220138319A1

公开(公告)日：2022-05-05

申请号：US17461337

申请日：2021-08-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung-Tae KIM ,  Ji-Hyeon SONG ,  Jong-Hyun KIM ,  Sang-Min LEE ,  Ik-Kyun KIM ,  Dae-Sung MOON

IPC: G06F21/56 ,  G06N20/00

Abstract: Disclosed herein are an apparatus for detecting unknown malware using a variable-length operation code (opcode) and a method using the apparatus. The method includes collecting opcode information from a detection target, generating a multi-pixel image having a variable length by performing feature engineering on the opcode information; and detecting unknown malware by inputting the multi-pixel image to a deep-learning model based on AI.

公开(公告)号：US20190327164A1

公开(公告)日：2019-10-24

申请号：US16206662

申请日：2018-11-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Tae KIM ,  Youngsoo KIM ,  Jonghyun KIM ,  Hyun Joo KIM ,  Jong Geun PARK ,  Sang-Min LEE ,  Jong-Hoon LEE ,  Sunoh CHOI

IPC: H04L12/26

Abstract: A method, an apparatus, and a system for analyzing traffic through obtaining flow data of a flow from a switch or a router of a network, calculating an average byte per packet rate (BPR) and a TCP flag ratio (TCPFR) for all flows included in a session including the flow using the flow data, and comparing the average BPR and the TCPFR with an average BPR and a TCPFR of previously-known traffic and determining whether the traffic including the flow is normal traffic or abnormal traffic based on the comparison result are provided.

公开(公告)号：US20180322142A1

公开(公告)日：2018-11-08

申请号：US15941962

申请日：2018-03-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sang-Min LEE ,  Young-Kyun KIM ,  Hong-Yeon KIM

IPC: G06F17/30

CPC classification number: G06F17/30203 ,  G06F17/30106 ,  G06F17/30117

Abstract: Disclosed herein are a metadata server and a method for distributing metadata in units of directories using the metadata server. The method includes receiving a request for at least one of creation, deletion and retrieval from a user file system; acquiring an inode corresponding to an identifier of a parent inode, which is included in the request; searching the parent inode for a dentry corresponding to the request when the request is a request to create a directory; selecting a secondary metadata server in which a new directory is to be created in order to distribute metadata in units of directories; requesting the selected secondary metadata server to create an inode; receiving an identifier of the created inode from the secondary metadata server; and adding a new dentry to the parent inode using the identifier of the inode.

公开(公告)号：US20160301754A1

公开(公告)日：2016-10-13

申请号：US15010373

申请日：2016-01-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang-Min LEE ,  Young-Kyun KIM ,  Hong-Yeon KIM

IPC: H04L29/08 ,  H04L12/803 ,  H04L12/24

CPC classification number: H04L67/1097 ,  G06F17/30067 ,  H04L41/12 ,  H04L41/5041

Abstract: Disclosed herein is a distributed file system using a torus network. The distributed file system may include multiple servers. The multiple servers are connected with each other through an n-dimensional torus network, and each of the multiple servers may be arranged along n-dimensional axes. Among the servers in the distributed file system, a server group of an (n−1)-dimensional torus network may be connected to a public network. Different loads of the distributed file system may be distributed based on the axes. Through the distribution, the processing performance of the distributed file system may be improved.

Abstract translation: 这里公开了使用环面网络的分布式文件系统。 分布式文件系统可以包括多个服务器。 多个服务器通过n维环面网络彼此连接，并且多个服务器中的每一个可以沿着n维轴排列。 在分布式文件系统的服务器中，（n-1）维环网的服务器组可以连接到公共网络。 可以基于轴分布不同分布式文件系统的负载。 通过分发，可以提高分布式文件系统的处理性能。

公开(公告)号：US20160269308A1

公开(公告)日：2016-09-15

申请号：US15047841

申请日：2016-02-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung-Hee LEE ,  Bhum-Cheol LEE ,  Jong-Geun PARK ,  Seung-Hyun YOON ,  Sang-Min LEE

IPC: H04L12/911 ,  H04L29/08

CPC classification number: H04L41/5012 ,  H04L41/5096

Abstract: A method and an apparatus for integrated management/control of regionally distributed micro-cloud data centers. A system for managing distributed clouds includes an apparatus for managing distributed clouds and an apparatus for managing a plurality of micro-data centers. The apparatus for managing distributed clouds manages the plurality of micro-data centers, analyzes the service inputted by a user to generate optimal virtual resource information, and transmits it to the micro-data center. The micro-data center is allocated with optimal resource according to the inputted service analysis information and resource request information.

Abstract translation: 一种用于区域分布式微云数据中心综合管理/控制的方法和装置。 用于管理分布式云的系统包括用于管理分布式云的装置和用于管理多个微数据中心的装置。 用于管理分布式云的装置管理多个微数据中心，分析由用户输入的服务以生成最佳虚拟资源信息，并将其发送到微数据中心。 微数据中心根据输入的业务分析信息和资源请求信息分配最优资源。

公开(公告)号：US20150074166A1

公开(公告)日：2015-03-12

申请号：US14247500

申请日：2014-04-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Hee LEE ,  Bhum Cheol LEE ,  Young Ho PARK ,  Sang-Min LEE ,  Kang Il CHOI ,  Seung-Woo LEE

IPC: H04L29/06

CPC classification number: H04L49/00

Abstract: An apparatus for processing multi-layer data, the apparatus comprising: a lower layer switch configured to classify lower layer data based on frame or packet from multi-layer data having different properties for switching processing; and an upper layer switch configured to generate flows of the multi-layer data having different properties based on upper layer information or lower layer information.

Abstract translation: 一种用于处理多层数据的装置，所述装置包括：下层交换机，被配置为基于具有不同属性的多层数据的帧或分组对切换处理的下层数据进行分类; 以及上层交换机，被配置为基于上层信息或下层信息生成具有不同属性的多层数据的流。

公开(公告)号：US20140324951A1

公开(公告)日：2014-10-30

申请号：US14257289

申请日：2014-04-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chei-Yol KIM ,  Sang-Min LEE ,  Jeong-Sook PARK ,  Young-Chang KIM ,  Soo-Young KIM

IPC: H04L29/08

CPC classification number: H04L67/2852 ,  H04L67/1097

Abstract: Disclosed herein is a network selecting apparatus including: a determining unit checking an operation state of a cache server in which replicated data corresponding to a data request signal are stored and determining whether the cache server is normally operated, when the data request signal is received from a client; and a selecting unit selecting a first network so that the replicated data are transmitted to input and output devices when the cache server is normally operated and selecting a second network so that original data corresponding to the data request signal are transmitted from a storage server in which the original data are stored to the input and output devices when the cache server is not normally operated.

Abstract translation: 这里公开了一种网络选择装置，包括：确定单元，当从数据请求信号接收到数据请求信号时，检查其中存储有与数据请求信号相对应的复制数据的高速缓存服务器的操作状态，并确定缓存服务器是否正常工作 一个客户; 以及选择单元，其选择第一网络，使得当高速缓存服务器正常操作时将复制数据发送到输入和输出设备，并且选择第二网络，使得与数据请求信号对应的原始数据从其中 当缓存服务器不正常运行时，原始数据被存储到输入和输出设备。

公开(公告)号：US20140201738A1

公开(公告)日：2014-07-17

申请号：US14152708

申请日：2014-01-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kang-Il CHOI ,  Bhum-Cheol LEE ,  Jung-Hee LEE ,  Young-Ho PARK ,  Sang-Min LEE ,  Seung-Woo LEE

IPC: G06F9/455

CPC classification number: G06F9/45533 ,  G06F9/45558 ,  G06F2009/4557 ,  G06F2009/45595 ,  H04L41/00 ,  H04L45/302 ,  H04L45/38 ,  H04L45/42 ,  H04L47/24 ,  H04L49/205 ,  H04L49/70

Abstract: Provided are a method, apparatus, and system for providing a multi-tenant cloud service, which can guarantee quality of service (QOS) in units of flows and virtual machines (VMs). A dynamic virtual flow switch includes a switch flow agent configured to receive and store virtual machine QOS information about each of a plurality of virtual machines operating in a plurality of computer servers and flow QOS information about a flow generated by the virtual machine from a virtual flow controller and a flow processing unit configured to receive the flow generated by the virtual machine and determine a QOS priority of the flow based on the stored virtual machine QOS information of the virtual machine and flow QOS information of the flow.

Abstract translation: 提供了一种用于提供多租户云服务的方法，装置和系统，其可以以流和虚拟机（VM）为单位保证服务质量（QOS）。 动态虚拟流交换机包括交换流程代理，被配置为接收和存储关于在多个计算机服务器中操作的多个虚拟机中的每一个的虚拟机QOS信息，以及关于虚拟机从虚拟流生成的流的QOS信息 控制器和流处理单元，其被配置为接收虚拟机生成的流并基于存储的虚拟机的虚拟机QOS信息和流的流QOS信息来确定流的QOS优先级。