Reliable Distributed Network Management by Replication

Santos, Aldri; Duarte, Elias P.; Keeni, Glenn Mansfield

doi:10.1023/b:jons.0000034213.75955.8b

Cited by 6 publications

(4 citation statements)

References 26 publications

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“…As regras podem utilizar campos do cabec ¸alho do pacote, e.g., enderec ¸os de origem/destino e portas, ou até mesmo o conteúdo do pacote. Depois de classificado, o SC encapsula o pacote com um conjunto de informac ¸ões que formam o Network Service Header (NSH) [Quinn et al 2018] A seguir é proposta a estratégia denominada FT-SFC (Fault-Tolerant SFC) que prevê a resiliência dos componentes da arquitetura SFC da IETF e utiliza técnicas de replicac ¸ão [Santos et al 2004] para garantir: (i) que nenhum pacote seja perdido ou duplicado na presenc ¸a de falhas; e (ii) que a arquitetura tolere f falhas crash ou bizantinas [Lamport et al 2019]. Uma falha bizantina é uma falha arbitrária, que é normalmente utilizada para representar um componente que sofreu uma intrusão decorrente de um ataque.…”

Section: Uma Arquitetura Sfc Tolerante a Falhas E Intrusãounclassified

Arquitetura e Mapeamento de Serviços Virtualizados de Rede Tolerantes a Falhas e Intrusão

Fülber-Garcia¹,

Venâncio²,

Duarte³

2022

Anais Do XXIII Workshop De Testes E Tolerância a Falhas (WTF 2022)

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A arquitetura para serviços virtuais de rede da IETF define Service Function Chains (SFCs) como composições de múltiplas Virtualized Network Functions (VNFs). As SFCs são baseadas em componentes para o encaminhamento de tráfego, principalmente os classificadores Service Classifiers (SCs) e encaminhadores Service Function Forwarders (SFFs) de tráfego. Este trabalho apresenta uma nova estratégia para replicar, mapear e tolerar falhas por parada e intrusão de todos os componentes da arquitetura de SFC da IETF; trabalhos anteriores consideram apenas falhas por parada de VNFs. Assume-se um ambiente federado com múltiplos domínios candidatos a hospedarem instâncias de VNF, SC e SFF. Os componentes de encaminhamento são replicados, sendo então mapeados no ambiente federado utilizando otimização baseada em critérios de conectividade. Uma heurística genética é proposta, além de solução exata baseada em programação linear inteira. Resultados mostram a eficiência da heurística e que retorna resultados próximos ao ótimo. Além disso, um protótipo da estratégia proposta foi implementado e demostrou a capacidade de manter o serviço disponível sob falhas por parada e intrusão resultante de ataque man-in-the-middle.

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Section: Uma Arquitetura Sfc Tolerante a Falhas E Intrusãounclassified

Arquitetura e Mapeamento de Serviços Virtualizados de Rede Tolerantes a Falhas e Intrusão

Fülber-Garcia¹,

Venâncio²,

Duarte³

2022

Anais Do XXIII Workshop De Testes E Tolerância a Falhas (WTF 2022)

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“…Finally, widespread fault-tolerant techniques for distributed networks, along with more efficient methods, are available in the literature [43]. Such techniques include Simple Network Management Protocol (SNMP) and TCP/IP, clustering SNMP agents, and replication of crashed agents by peer cluster [44], application of k-nearest neighbor algorithm for poison message failure [45], usage of MultiRouter Traffic Graphing for the creation of a network monitoring tool [46], a policy-based application for fault identification and action decision [47], and an eXtensible Markup Language (XML) notation for the specification of dependencies between managed resources [38].…”

Section: Fault Managementmentioning

confidence: 99%

Towards a Collection of Security and Privacy Patterns

Papoutsakis

Fysarakis²,

Spanoudakis

et al. 2021

Applied Sciences

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Security and privacy (SP)-related challenges constitute a significant barrier to the wider adoption of Internet of Things (IoT)/Industrial IoT (IIoT) devices and the associated novel applications and services. In this context, patterns, which are constructs encoding re-usable solutions to common problems and building blocks to architectures, can be an asset in alleviating said barrier. More specifically, patterns can be used to encode dependencies between SP properties of individual smart objects and corresponding properties of orchestrations (compositions) involving them, facilitating the design of IoT solutions that are secure and privacy-aware by design. Motivated by the above, this work presents a survey and taxonomy of SP patterns towards the creation of a usable pattern collection. The aim is to enable decomposition of higher-level properties to more specific ones, matching them to relevant patterns, while also creating a comprehensive overview of security- and privacy-related properties and sub-properties that are of interest in IoT/IIoT environments. To this end, the identified patterns are organized using a hierarchical taxonomy that allows their classification based on provided property, context, and generality, while also showing the relationships between them. The two high-level properties, Security and Privacy, are decomposed to a first layer of lower-level sub-properties such as confidentiality and anonymity. The lower layers of the taxonomy, then, include implementation-level enablers. The coverage that these patterns offer in terms of the considered properties, data states (data in transit, at rest, and in process), and platform connectivity cases (within the same IoT platform and across different IoT platforms) is also highlighted. Furthermore, pointers to extensions of the pattern collection to include additional patterns and properties, including Dependability and Interoperability, are given. Finally, to showcase the use of the presented pattern collection, a practical application is detailed, involving the pattern-driven composition of IoT/IIoT orchestrations with SP property guarantees.

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“…LEACH [4], a well-known clustering mechanism, utilizes localized coordination and control for cluster set-up. In advertisement phase, each node decides to which cluster it belongs according to strength of received advertisement signal.…”

Section: Cluster-based Network Modelmentioning

confidence: 99%

“…Fault-tolerance is the ability of a network to maintain a desired performance when fault conditions occur. Current fault tolerant research includes self-repair techniques [1][2][3] and the use of existing industry standards such as SNMP and TCP/IP, as well as more integrated techniques that consider energy efficiency [4][5][6]. Ultimately, the problem of designing fault tolerant wireless sensor networks is a research challenge that cannot be addressed in the same way as traditional wired, or even traditional wireless networks due to several unique features.…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Wireless Sensor Networks

Li¹,

McNair²

2009

Security in Ad Hoc and Sensor Networks

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In this chapter, we outline the current state of research for the design of fault tolerant wireless sensor networks. First, we discuss the various notions of faults as concerns a wireless sensor network, including fault characteristics, sources of faults, and random faults versus faults with particular temporal, geographical, or topology-related patterns. Second, we discuss techniques for fault prevention and management including techniques for detection and recovery. Finally, we provide a particular focus on a fault management in cluster-based wireless sensor networks, and outline current research directions in architecture design and recovery techniques, followed by the chapter summary.

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Reliable Distributed Network Management by Replication

Cited by 6 publications

References 26 publications

Arquitetura e Mapeamento de Serviços Virtualizados de Rede Tolerantes a Falhas e Intrusão

Arquitetura e Mapeamento de Serviços Virtualizados de Rede Tolerantes a Falhas e Intrusão

Towards a Collection of Security and Privacy Patterns

Fault-Tolerant Wireless Sensor Networks

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