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Dive into the research topics where Jong-Uk Kong is active.

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Featured researches published by Jong-Uk Kong.


The Journal of Korean Institute of Communications and Information Sciences B | 2011

A Reservation based Network Resource Provisioning Testbed Using the Integrated Resource Management System

Huhnkuk Lim; Jeonghoon Moon; Jong-Uk Kong; Jang-Soo Han; YoungWook Cha

The HPcN (Hybrid & high Performance Convergence Network) in research networks means environment which can provide both computing resource such as supercomputer, cluster and network resource to application researchers in the field of medical, bio, aerospace and e-science. The most representative research network in Korea, KREONET has been developing following technologies through the HERO (Hybrid Networking project for research oriented infrastructure) from 200S. First, we have constructed and deployed a control plane technology which can provide a connection oriented network dynamically. Second, the integrated resource management system technology has been developing for reservation and allocation of both computing and network resources, whenever users want to utilize them. In this paper, a testbed network is presented, which is possible to reserve and allocate network resource using the integrated resource management system. We reserve network resource through GNSI (Grid Network Service Interface) messages between GRS (Global Resource Scheduler) and NRM (Network Resource Manager) and allocate network resource through GUNI (Grid User Network Interface) messages between the NRM (network resource manager) and routers, based on reservation information provided from a user on the web portal. It is confirmed that GUNI interface messages are delivered from the NRM to each router at the starting of reservation time and traffic is transmitted through LSP allocated by the NRM.


The Kips Transactions:partc | 2011

A NetFPGA-based IP Service Gateway for the Composition of Service Overlay Networks

Jinyong Jo; Soyeon Lee; Jong-Uk Kong; JongWon Kim

Overlay network is a ready-to-use solution to enable new network functionality with existing Internet connectivity intact. This paper introduces a network service which helps users easily compose their own service overlay networks through software-defined networks. We look into the structure of service gateway which enables 1 Gbps packet processing on composed overlay networks. We also provide examples for the way of composing service overlay for support multicast applications. Experiment results carried over the KREONET (Korea Research Environment Open NETwork) show the forwarding performance of the service gateway.


The Kips Transactions:partc | 2009

Definition of Network Resource and Network Service Interface for Grid Network Resource Manager

Haehyun Kim; YoungWook Cha; Jang-Soo Han; Choon-Hee Kim; Jong-Uk Kong; Woojin Seok

Grid technology enables high performance computation and mass data processing by connecting geographically distributed computing resources to high-speed network. To carry on grid tasks requiring guaranteed quality of service, we need to build converged infrastructure which controls and manages network resources as well as computing resources. In this paper, we defined grid network service interface and information model to support grid network path, resource creation and reservation. In addition to resource creation and reservation messages of the existing GLIF, grid network path and notification messages were defined in the grid network service interface. We also defined related statuses and messages for two-phase resource reservation mechanism. We designed and implemented network resource management system based on the grid network information model and service interface. We experimented in resource reservation, allocation and release of network resources in grid environment with GMPLS control and transport network.


The Kips Transactions:partc | 2009

Realizing an End-to-End IP Multicast Monitoring Framework for the Support of Networked Collaboration

Jinyong Jo; Jong-Uk Kong

Despite its graceful bandwidth saving nature, IP multicast has not been successful in widely spreading and using. Challenging includes policy and technological issues such as inter-domain routing, multicast availability and reachability. Properly detecting and isolating the faults would be the first step to stabilize IP multicast. In this paper, we introduce a scalable multicast monitoring framework. To efficiently cope with multicast network and networking problems, it enlarges its monitoring scopes from collecting delivery statistics to verifying end-to-end multicast availability, reachability and interactivity. We carry out various networking experiments to verify the scalability and feasibility of the proposed framework.


international conference on advanced communication technology | 2012

Implementation of an OpenFlow network virtualization for multi-controller environment

Seokhong Min; Seungju Kim; Jae Yong Lee; Byung-Chul Kim; Wontaek Hong; Jong-Uk Kong


The Journal of Korean Institute of Communications and Information Sciences | 2013

A Centralized Network Policy Controller for SDN-Based Service Overlay Networking

Jinyong Jo; Soyeon Lee; Jong-Uk Kong; JongWon Kim


The Journal of Korean Institute of Communications and Information Sciences | 2013

RREM : Multi-hop Information Based Real-Time Routing Protocol to Support Event Mobility in Wireless Sensor Networks

Soyeon Lee; Jeongcheol Lee; Hosung Park; Jong-Uk Kong; Sang-Ha Kim


The Kips Transactions:partc | 2011

Deployment and Performance Analysis of Nation-wide OpenFlow Networks over KREONET

Wontaek Hong; Jong-Uk Kong; Jin Wook Chung


한국멀티미디어학회 국제학술대회 | 2010

Bottom-up Recovery Scheme of Multilayer Network based on Root-Cause Analysis

JinNyun Kim; YoungWook Cha; Jong-Uk Kong; TaeHyun Kwon; You-Hyeon Jeong


한국멀티미디어학회 국제학술대회 | 2008

Implementation of NGN Resource Control Functions with QoS Mapping Mechanism

Jinsu Jeon; Haehyun Kim; YoungWook Cha; Woojin Seok; Jong-Uk Kong

Collaboration


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YoungWook Cha

Andong National University

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Jinyong Jo

Korea Institute of Science and Technology Information

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Soyeon Lee

Korea Institute of Science and Technology Information

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JongWon Kim

Gwangju Institute of Science and Technology

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Woojin Seok

Korea Institute of Science and Technology Information

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Byung-Chul Kim

Chungnam National University

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Hosung Park

Chungnam National University

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Huhnkuk Lim

Korea Institute of Science and Technology

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Jae Yong Lee

Chungnam National University

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