• Title/Summary/Keyword: Network policy

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A Network Management Architecture Using XML-based PIB (XML기반 PIB를 이용한 네트워크 관리구조)

  • 윤권섭;홍충선
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.5B
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    • pp.414-426
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    • 2003
  • XML is being used to describe components and applications in a vendor and language neutral. Therefore it already has a role in distributed system. XML is also being used as a data interchange format between components and applications in loosely coupled large-scale application. Until now, policy is described for specific applications and devices. Its use has been very limited. In current network management system, we can only invoke predefined operations and actions using policy-based network management. The main motivation for the recent interests in policy-based networks is to support dynamic adaptability of behavior by changing policy without recoding or stopping system. For these reasons we present the use of the XML for describing the policy and PIB(Policy Information Base) in COPS-PR. It improves flexibility and interoperability among heterogeneous network systems. It also can add new functionality into network components. In this paper, we propose a dynamically extensible network management architecture using XML-based PIB.

A System Dynamics Model of Alternative Fuel Vehicles Market under the Network Effect

  • Kwon, Tae-Hyeong
    • Korean System Dynamics Review
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    • v.8 no.2
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    • pp.5-23
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    • 2007
  • According to the system dynamics model of this study, if there is a significant network effect on vehicle operating costs, it is difficult to achieve the shift to AFV even in the long term without a policy intervention because the car market is locked in to the current structure. Network effect can be caused by an increasing return to scale in fuel supply sector as well as in maintenance service sector. It is also related to the fact that the reliability and awareness of consumers on new products increases with the growth of the market share of the new products. There are several possible policy options to break the 'locked in' structure of car market, such as subsidy on vehicle price (capital cost), subsidy on fuel (operating cost) and niche management policy. Combined policy options would be more effective than relying on a single policy option to increase the market share of AFV.

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Traffic engineering capable policy based network management system (트래픽 엔지니어링 기능을 제공하는 정책기반 네트워크 관리 시스템)

  • 김현철;윤병우;최원석;정진욱
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 2002.06a
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    • pp.89-96
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    • 2002
  • In this paper, we present the functional architecture for the traffic engineering capable policy based network management system. In this paper, we also examine the traditional approach to network management, contrast it with the policy based approach. The architecture includes the traffic engineering facilities, especially MPLS traffic engineering functions, to provide maximum network resource utilization. The policy server should communicate with the traffic engineering server and network manager to enforce the network policy efficiently. The interfaces and interworking methods are described in this paper.

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Analyzing data-related policy programs in Korea using text mining and network cluster analysis (텍스트 마이닝과 네트워크 군집 분석을 활용한 한국의 데이터 관련 정책사업 분석)

  • Sungjun Choi;Kiyoon Shin;Yoonhwan Oh
    • Journal of Korea Society of Industrial Information Systems
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    • v.28 no.6
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    • pp.63-81
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    • 2023
  • This study endeavors to classify and categorize similar policy programs through network clustering analysis, using textual information from data-related policy programs in Korea. To achieve this, descriptions of data-related budgetary programs in South Korea in 2022 were collected, and keywords from the program contents were extracted. Subsequently, the similarity between each program was derived using TF-IDF, and policy program network was constructed accordingly. Following this, the structural characteristics of the network were analyzed, and similar policy programs were clustered and categorized through network clustering. Upon analyzing a total of 97 programs, 7 major clusters were identified, signifying that programs with analogous themes or objectives were categorized based on application area or services utilizing data. The findings of this research illuminate the current status of data-related policy programs in Korea, providing policy implications for a strategic approach to planning future national data strategies and programs, and contributing to the establishment of evidence-based policies.

A QoS policy experimentation and evaluation on Optical subscriber network Test bed for deploying TPS(Triple Play Service) (TPS를 고려한 광가입자망에서의 QoS 고찰)

  • Lee, Dong-Yeal;Seung, Min-Mo;Kim, Hee-Dong
    • 한국정보통신설비학회:학술대회논문집
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    • 2009.08a
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    • pp.63-67
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    • 2009
  • In this paper we propose a QoS policy, which is based on both DSCP and SPQ, appropriate to TPS users on optical subscriber network. Then we experiment and evaluate QoS policy through the test bed which emulates real optical subscriber network. In order to perform effective and real experiment on test bed we make test traffic equivalent to 400 TPS users and give it to test bed. The experimental result shows that no packet loss in real time service traffic such as voice, IPTV occurs during more than 4 hours. We think that our proposed QoS policy is a proper method which guarantees the service quality of real time services on optical subscriber network.

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Family Policy for Enactment of Healhty Family Act (건강가정기본법의 실천을 위한 정책적 지원)

  • 정민자
    • Journal of Families and Better Life
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    • v.22 no.5
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    • pp.319-329
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    • 2004
  • The purpose of this study is to suggest family policy for enactment of Healhty Family Act. Throuh this thesis 2 points are suggested. One point is the orientation and subjects of family policy are contextulized by governancial policy viewpoint. Another point is that family supporting programs are able to povided by 6 areas : Fostering family network and community and family culture, Protecting family(home) and family functin, Developing family strength, Preventing family problems and recovering family(home), Providing information for healthy family and Intigrating of network-nation policy, local government, community and family etc.

Study of effectiveness for the network separation policy of financial companies (금융회사 망분리 정책의 효과성 연구)

  • Cho, Byeong-Joo;Yun, Jang-Ho;Lee, Kyeong-Ho
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.25 no.1
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    • pp.181-195
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    • 2015
  • Financial industries have operated internal and external network with an unified system for continual business process of customers and other organizations in the past. The financial supervising authority requires more technical and managerial protecting policy to financial industries related to the exposure as danger of external attacks or information leakage. Financial industries performed network separation into internal business and external internet networks for protecting IT assets from malware infection accessing internet or hacking attacks and prohibiting leakage of customers' personal and financial information following financial supervising authority and redefine security policy to fit on network separated-condition. In this study, effectiveness for network separation policy was examined on malware inflow and verified that malware inflow in all routes can be blocked by the policy with analyzing operration data of a financial company, estimating network separation. Result of this study proves that malware infection route by portable storages was not completely blocked even on adapting network-separated condition. As a solution for this, efficient security policy would be suggested in this paper as controlling portable storages for maximizing effectiveness of network separation.

A Study on the Implementation of ROK Army Records Management Policy : Limitations of the Street-Level Bureaucracy Model and Proposal of the Policy Network Model (육군 기록관리정책의 집행맥락에 관한 연구 일선관료제 모형의 한계와 정책네트워크 모형의 제안)

  • Lim, Jisu;Kim, Giyeong
    • The Korean Journal of Archival Studies
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    • no.49
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    • pp.175-212
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    • 2016
  • The purpose of this study is to propose a model that can polish and improve the ROK (Republic of Korea) Army's records management policy in a new records management environment by analyzing the context of policy implementation. In this study, two distinct and different policy cases were analyzed using different models for policy analysis such as the case of the records management system of the ROK Army with the street-level bureaucracy model and the case of the archives personnel within the ROK Army with a Policy Network model. The results from the comparative analysis with both cases state that the street-level bureaucracy model has limitations in analyzing even a policy implementation case when multiple actors are involved. At the same time, a network policy model is useful in identifying the problematic points that need improvement in the case. Based on these results, some improvements for effective records management in the ROK Army were proposed. This study follows the approach of the two distinctive case studies from the perspective of policy science-a view that no archive researcher has ever explored before.

Study on ″Policy-based Network service Management System for DEN″ (DEN 서비스를 위한 PBNM 개발)

  • 전준현;백성혁;구태원
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.41 no.4
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    • pp.1-10
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    • 2004
  • In NGNs(Next Generation Networks), It is necessary for Integrated management of resource and information to satisfy high-quality users'demands, such as stable speed, guarantee of high level service and service requirement in various fields. In relation to this, technology for efficiently using limited resources is becoming interesting things more and more. Therefore policy of network service is dealt essentially. Recently, DEN(Directory Enabled Network)-based personalization service is user-dependent services in NGNs, and integrated management and efficient use of limited resources. Also, PBNM(Policy-Based Network Management) is new technology defined and applied by policies of communication service environments and users on demand. Subsequently to study on how to optimizing the PBNM is of great importance. In this paper, we propose a technology of the PBNM based on DEN standardized in DMTF(Distributed Management Task Force).

A Social Network Analysis of Research Key Words Related Smoke Cessation in South Korea (연결망 분석을 활용한 우리나라 금연연구 동향분석)

  • An, Eun-Seong
    • Health Policy and Management
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    • v.29 no.2
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    • pp.138-145
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    • 2019
  • Background: The purpose of this study is supposed to figure out the keyword network from 2009 to 2018 with social network analysis and provide the research data that can help the Korea government's policy making on smoking cessation. Methods: First, frequency analysis on the keyword was performed. After, in this study, I applied three classic centrality measures (degree centrality, betweenness centrality, and eigenvector centrality) with R 3.5.1. Moreover, I visualized the results as the word cloud and keyword network. Results: As a result of network analysis, 'smoking' and 'smoking cessation' were key words with high frequency, high degree centrality, and betweenness centrality. As a result of looking at trends in keyword, many study had been done on the keyword 'secondhand smoke' and 'adolescent' from 2009 to 2013, and 'cigarette graphic warning' and 'electronic cigarette' from 2014 to 2018. Conclusion: This study contributes to understand trends on smoking cessation study and seek further study with the keyword network analysis.