• Title, Summary, Keyword: Network fault recovery

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Rule-based network fault self-recovery system (규칙 기반의 네트워크 장애 자기 복구 시스템)

  • Lee, Jae-Wook;Ahn, Seong-Jin;Chung, Jin-Wook
    • Journal of the Korean Society for Industrial and Applied Mathematics
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    • v.10 no.1
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    • pp.83-93
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    • 2006
  • This paper introduces rule-based reasoning (RBR) based self-recovery system for network fault in ubiquitous computing. This system is fault management system for fault recovery of rule-based for self-recovery in ubiquitous computing environment. We proposed rules of network fault recovery applied the system as a distinguished reason of network fault. And, in this paper, the network fault self-recovery system proved the rules that applied each situatpion through the simulation.

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A fault detection and recovery mechanism for the fault-tolerance of a Mini-MAP system (Mini-MAP 시스템의 결함 허용성을 위한 결함 감지 및 복구 기법)

  • Mun, Hong-Ju;Kwon, Wook-Hyun
    • Journal of Institute of Control, Robotics and Systems
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    • v.4 no.2
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    • pp.264-272
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    • 1998
  • This paper proposes a fault detection and recovery mechanism for a fault-tolerant Mini-MAP system, and provides detailed techniques for its implementation. This paper considers the fault-tolerant Mini-MAP system which has dual layer structure from the LLC sublayer down to the physical layer to cope with the faults of those layers. For a good fault detection, a redundant and hierarchical fault supervision architecture is proposed and its implementation technique for a stable detection operation is provided. Information for the fault location is provided from data reported with a fault detection and obtained by an additional network diagnosis. The faults are recovered by the stand-by sparing method applied for a dual network composed of two equivalent networks. A network switch mechanism is proposed to achieve a reliable and stable network function. A fault-tolerant Mini-MAP system is implemented by applying the proposed fault detection and recovery mechanism.

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A Fault Recovery Agent for Home Network Environment based on IP-USN (IP-USN 기반의 홈 네트워크 환경을 위한 결함 복구 에이전트)

  • Kim, Hak-Joon;Ko, Eung-Nam
    • Journal of Advanced Navigation Technology
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    • v.13 no.5
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    • pp.749-755
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    • 2009
  • This paper described the design and implementation of the FRA(Fault Recovery Agent) for home network environment based on IP-USN. This system consists of a FDA, FSA, and FRA. FDA is an agent that detects an fault by hooking techniques for multimedia distance education based on IP-USN environment. FSA is an agent that is an fault sharing system for multimedia distance education based on IP-USN environment. FRA is a system that is suitable for recovering software fault for multimedia distance education running on home network environment based on IP-USN. It is necessary for the system to be protected by reactivity of media service instance instead of breaking process of session. This system is limited only for FRA modeling.

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Web Server Fault Diagnoisi and Recovery Mechanism Using INBANCA (INBANCA기법을 이용한 웹 서버 장애 진단 및 복구기법)

  • Yun, Jung-Mee;Ahn, Seong-Jin;Chung, Jin-Wook
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.8
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    • pp.2497-2504
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    • 2000
  • This paper is aimed at defining items of fault, and then constructing rules of fault diagnosis and recovery using INBANCA technology for the purpose of managing the weh server. The fault items of web server consist of the process fault, server overload, network interface fault, configuration and performance fault. Based on these items, the actual fault management is carried out fault referencing. In order to reference the fault, we have formulated the system-level fault diagnosis production rule and the service-level fault diagnosis rule, conjunction with translating management knowledge into active network. Also, adaptive recovery mechanism of web server is applied to defining recovery rule and constructing case library for case-based web server fault recovery. Finally, through the experiment, fault environment and applicability of each proposed production rule and recovering scheme are presented to verify justification of proposed diagnosis rules and recovery mechanism for fault management. An intelligent case-based fault management scheme proposed in this paper can minimize an effort of web master to remove fault incurred web administration and operation.

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A Fault-Recovery Agent for Distance Education on Home Network Environment (홈 네트워크 환경에서 원격 교육을 위한 결함 복구 에이전트)

  • Ko, Eung-Nam
    • Journal of Advanced Navigation Technology
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    • v.11 no.4
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    • pp.479-484
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    • 2007
  • This paper explains the design and implementation of the FRA(Fault Recovery Agent). FRA is a system that is suitable for recovering software error for multimedia distance education based on home network environment. In terms of distributed multimedia systems, the most important catagories for quality of service are a timeless, volume, and reliability. In this paper, we discuss a method for increasing reliability through fault tolerance. This paper explains a performance analysis of an error recovery system running on distributed multimedia environment using rule-based DEVS modeling and simulation techniques. In DEVS, a system has a time base, inputs, states, outputs, and functions. The proposed method is more efficient than the other method in comparison with error ration and processing time.

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FTOG-based Recovery Services Through Replicated Objects (중복 객체를 통한 FTOG 모델 기반의 회복서비스)

  • Kang, Myung-Seok;Jung, Jae-Yun;Kim, Hag-Bae
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.12B
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    • pp.1044-1048
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    • 2006
  • This paper proposes a FTOG(Fault-Tolerant Object Group)-based recovery services through replicated objects. In the distributed system, the fault of the object component may cause an entire system failure, evidently raising the service breakdowns. Therefore, this paper proposes recovery services with the replicated objects in case of fault occurrences. Moreover, applying the FTOG model to a virtual home network simulation, we verify the consistency maintenance and the service reliability of the proposed model.

Fault/Attack Management Framework for Network Survivability in Next Generation Optical Internet Backbone (차세대 광 인터넷 백본망에서 망생존성을 위한 Fault/Attack Management 프레임워크)

  • 김성운;이준원
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.40 no.10
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    • pp.67-78
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    • 2003
  • As optical network technology advances and high bandwidth Internet is demanded for the exponential growth of internet traffic volumes, the Dense-Wavelength Division Multiplexing (DWDM) networks have been widely accepted as a promising approach to the Next Generation Optical Internet (NGOI) backbone networks for nation wide or global coverage. Important issues in the NGOI based on DWDM networks are the Routing and Wavelength Assignment(RWA) problem and survivability. Especially, fault/attack detection, localization and recovery schemes in All Optical Transport Network(AOTN) is one of the most important issues because a short service disruption in DWDM networks carrying extremely high data rates causes loss of vast traffic volumes. In this paper, we suggest a fault/attack management model for NGOI through analyzing fault/attack vulnerability of various optical backbone network devices and propose fault/attack recovery procedure considering Extended-LMP(Link Management Protocol) and RSVP-TE+(Resource Reservation Protocol-Traffic Engineering) as control protocols in IP/GMPLS over DWDM.

Home Service Recovery System based on Home Network Control Log (홈 네트워크 제어 로그 기반 홈 서비스 복구 시스템)

  • Kim, Yong-Ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.620-623
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    • 2008
  • Home service networked system gets more its fault chances, which are fault by the external factors, network fault, home appliance fault, and so on. Moreover, user may want to pay no attention to a sequence of complex or nervous maintenance jobs for system fault management. Therefore, home management system needs the function of home service recovery for fault home device. For this, this paper manages to design home network control log, and proposes the method for securing the home device service continuity analyzing home device service log in the point of fault.

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Fault Location Technique of 154 kV Substation using Neural Network (신경회로망을 이용한 154kV 변전소의 고장 위치 판별 기법)

  • Ahn, Jong-Bok;Kang, Tae-Won;Park, Chul-Won
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.67 no.9
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    • pp.1146-1151
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    • 2018
  • Recently, researches on the intelligence of electric power facilities have been trying to apply artificial intelligence techniques as computer platforms have improved. In particular, faults occurring in substation should be able to quickly identify possible faults and minimize power fault recovery time. This paper presents fault location technique for 154kV substation using neural network. We constructed a training matrix based on the operating conditions of the circuit breaker and IED to identify the fault location of each component of the target 154kV substation, such as line, bus, and transformer. After performing the training to identify the fault location by the neural network using Weka software, the performance of fault location discrimination of the designed neural network was confirmed.

Design and Implementation of Rule-based Routing Configuration Fault Management System (규칙 기반 라우팅 구성 장애 관리 시스템의 설계 및 구현)

  • 황태인;황태인;안성진
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.25 no.8A
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    • pp.1085-1095
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    • 2000
  • In this paper, we have defined the rules and the algorithm for diagnosis and recovery of routing configuration fault on a system. By using them, we have implemented the Java-based system that can manage routing configuration fault automatically. To manage routing configuration fault, the production rule for network configuration management, the production rule for routing configuration fault diagnosis, and the production rule for routing configuration fault recovery have been proposed. Rule-based routing configuration fault management system has been implemented on the basis of backward chaining algorithm and applied for meta rules for the purpose of interconnecting the production rules. We have derived the experimental result from transition process of the rules, the Blackboard, the goals based on scenarios. Through the implementation of dynamically applicable system in heterogeneous and rapidly changing network environments, we have proposed the methodology for network configuration fault management. Also, we expect that network configuration manager can reduce time and cost wasted for routing configuration fault management.

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