• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.11a
• /
• pp.234-237
• /
• 2014

This paper provides insights into the sFlow monitoring system of OF@KREONET. OF@KREONET is software defined network (SDN) testbed adapted by KREONET (Korea Research Environment Open NETwork). OF@KREONET uses SDN-based network virtualization to slice the network among multiple concurrent experimenter. Flow Monitoring of OF@KREONET using sFlow. sFlow and OpenFlow can be used to provide an integrated flow monitoring system where OpenFlow controller can be used to define flows to be monitored by sFlow. OF@KREONET flow monitoring system supports monitoring of per slice FlowSpace. An Experimental can monitor his/her own FlowSpace while network administrator can monitor all spaces.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.41 no.9
• /
• pp.1081-1094
• /
• 2016

KREONET is a principal national R&E network running by KISTI in Korea. It uniquely provides production research network services for around 200 non-profit research and educational organizations, based on hybrid (IP and non-IP) network infrastructure. However, KREONET is limited to meet various needs of new network services for advanced Science & Technology (S&T) users because its infrastructure is inherently derived form classical hardware-based, fixed and closed environments. So, KREONET-S is designed to provide advanced S&T services to catch up with time-to-research and time-to-collaboration. In this paper, we present a system architecture of KREONET-S based on network infrastructure that consists of data and control planes separately. Furthermore, we propose and describe VDN service which is capable of building a virtual dedicate & bandwidth-guaranteed network for S&T group dynamically. we implement VDN application on KREONET-S and then perform performance analysis for proving that KREONET-S system and VDN application can be a good solutions to cope with new network paradigms for various advanced S&T applications and users.

• Journal of Information Science Theory and Practice
• /
• v.10 no.spc
• /
• pp.154-163
• /
• 2022

The purpose of this paper is to illuminate the role and importance of National Research & Education Network (NREN) in the national research and education field and to establish the future strategy of KREONET in Korea. To this end, we first carefully analyze the footsteps of NREN in major overseas countries, KREONET achievements, and future demand for KREONET. The history of NREN's development is divided into the 2000s, 2010s, and present by era, and classified into network infrastructure, network service, and next-generation network technology by subject. KREONET achievements are divided into advanced research support, network backbone and operation, and network service. Future demand analysis of users who use KREONET was conducted through Korea Research International Incorporation, a survey company. This paper presents the future development strategy of KREONET by analyzing KREONET achievements and future demand.

• Journal of Digital Convergence
• /
• v.12 no.8
• /
• pp.309-319
• /
• 2014

Virtual Network service is a key characteristics of future Internet which is debate internationally. There are two kinds of network virtualization technologies considered lately: network functions virtualization and virtual network approaches. Several national wide research networks including US's GENI project have experimented technologies for future Internet and in particular network virtualization is one of key issues. Representative Korean research network, KREONET, is working on deploying virtual network framework as a preliminary for future Ineternet using the virtualization model of SDN/OpenFlow which is typical network model of future Internet. This paper proposes a stepwise model to bring virtual network services in KREONET. Firstly, we requirements of KREONET users' virtual network service and network resource management and network deploying virtual network. Finally, we verify the adequacy of our virtual network model for KREONET.

• Journal of Information Science Theory and Practice
• /
• v.10 no.spc
• /
• pp.123-134
• /
• 2022

Existing network cryptography systems are threatened by recent developments in quantum computing. For example, the Shor algorithm, which can be run on a quantum computer, is capable of overriding public key-based network cryptography systems in a short time. Therefore, research on new cryptography systems is actively being conducted. The most powerful cryptography systems are quantum key distribution (QKD) and post quantum cryptograph (PQC) systems; in this study, a network based on both QKD and PQC is proposed, along with a quantum key management system (QKMS) and a Q-controller to efficiently operate the network. The proposed quantum cryptography communication network uses QKD as its backbone, and replaces QKD with PQC at the user end to overcome the shortcomings of QKD. This paper presents the functional requirements of QKMS and Q-Controller, which can be utilized to perform efficient network resource management.

• KNOM Review
• /
• v.22 no.2
• /
• pp.39-47
• /
• 2019

There are several big data-driven advanced research activities such as meteorological climate information, high energy physics, astronomy research, satellite information data, and genomic research data on KREONET. Since the performance degradation occurs in the environment with the existing network security equipment, methods for preventing the performance degradation on the high-performance research-only network and for high-speed research collaboration are being studied. In addition, the recent issue of quantum computers has been a threat to security using the existing encryption system. In this paper, we construct quantum cryptography-based communication network through environment construction and high-performance transmission test that build physical security through quantum cryptography-based communication network in end-to-end high-speed research network. The purpose of this study is to analyze the effect on network performance when performing physical encryption and to use it as basic data for constructing high-performance research collaboration network.

• Convergence Security Journal
• /
• v.16 no.7
• /
• pp.181-187
• /
• 2016

KREONET is a national research network that supports research and development of advanced scientific application for about 200 KREONET members including national research institute, government office, university and research institution of commercial company with high performance networking service. In order to fulfil user satisfaction, this paper provides a solution for the issues in KREOENT service through investigating problems and analyzing user satisfaction survey during 2014 and 2015. Moreover it offers KREONET promotion strategy with user customization service.

• KNOM Review
• /
• v.22 no.2
• /
• pp.29-38
• /
• 2019

The rapid growth of IoT (Internet of Things) owing to the advancement and spread of technologies such as wireless networks, communication modules, sensors, smart terminals, etc. enables the development of new services in diverse public and private sectors. In particular, research on IoT technology and its applications has increased in the field of science. To establish an IoT infrastructure in this field, KREONET launched the wireless IoT network, called ScienceLoRa, based on low power wide area network (LPWAN). ScienceLoRa aims to collect a variety of data from sensors and utilize and analyze the collected data for research in a variety of scientific fields. In this article, the authors present the concept, current status, applications and future plans of ScienceLoRa.

• 한국IT서비스학회:학술대회논문집
• /
• 2009.11a
• /
• pp.103-108
• /
• 2009

국가과학기술연구망(KREONET)은 초고성능 슈퍼컴퓨팅, 그리드(Grid), e-Science 등 국내의 첨단 과학기술분야에 관한 연구 개발을 지원하고 있는 국가연구망(National Research Network)이다. 그러나 국가연구망이 국가연구개발 사업의 전반에 걸쳐 직 간접적으로 많은 영향을 미침에도 불구하고, 이러한 파급효과에 대해 체계적인 분석이 없는 실정이다. 따라서 본 논문에서는 KREONET에 대한 경제성 분석을 통해 국가과학기술과 산업발전에 미치는 파급효과를 분석하고자 한다. 분석방법으로는 KREONET의 존재 유무에 따른 비용편익분석과 산업연관분석을 사용하였다. 비용편익분석의 평가지표로는 순현재가치, 비용편익비율, 내부수익률을 사용하였고, 산업연관분석의 평가지표는 생산유발효과, 부가가치 유발효과, 취업유발효과를 사용하였다. 분석한 결과, KREONET은 경제적 파급효과가 높은 것으로 나타났다. 본 연구의 결과를 다른 연구망에 적용하기 위해서는 보다 다양한 범주의 평가범위와 평가방법에 대한 연구가 지속되어야 할 것이다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2002.11b
• /
• pp.1587-1590
• /
• 2002

Active Measurement Program(AMP)는 능동 모니터들이 서로 대칭적으로 모든 모니터들에 대해서 능동 성능 측정을 하는 분산 네트워크 시스템이다. 본 연구에서는 KREONET 의 성능 측정을 위하여, AMP 서버 및 모니터 구축, 모니터링 지역 선정 기준 정의, AMP MIB 정의를 통한 효과적인 AMP KREONET 구축 방안을 설명한다.