Towards SDN Fault Tolerance using Petri-Nets

Aly, Wael Hosny Fouad; Kotb, Yehia

doi:10.1109/atnac.2018.8615188

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…In (Lutz-Ley & Lopez-Mellado, 2018), a novel method is proposed to define the stability of safety PN models. A PN-based mathematical analysis for the fault tolerance of a softwaredefined net is presented (Aly & Kotb, 2018). All these examples confirm the importance and current interest of PN models for designing automation systems at the local and supervisory levels.…”

Section: Methodsmentioning

confidence: 56%

“…The GHENeSys model of this subsystem presents sequences of access control, activation of operating conditions, and opening of the general synoptic or mimic with access to the auxiliary windows of the SCADA (alarms, trend, reports, and statistical analyzer). Each stage is represented with macro-places and their conditions with auxiliary places and extended arcs that allow simulating its execution in any normal or dangerous situation, which is not allowed to be studied integrally in other discrete methodologies (Aly & Kotb, 2018;Borges & Lima, 2018;Lin et al, 2016;Lutz-Ley & Lopez-Mellado, 2018;Yue et al, 2019;). These macro-places encapsulate the execution details of each one, as in the case of the synoptic or general mimic which these internal details are enlarged in the low hierarchical model (Figure 7).…”

Section: Resultsmentioning

confidence: 99%

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Design of an Integrated Automation & Control System Using Petri Nets: Case Study

Núñez-Alvarez,

Benítez-Pina,

Acosta-Montoya

et al. 2023

JART

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El Sistema de Control y Automatización Integrado (IACS) basado en el control de eventos discretos mediante redes de Petri (PN) que abarca el diseño, análisis y validación de modelos de sistemas de bombeo industrial no se utilizan comúnmente. Nuestro caso de estudio es el diseño e implementación de un sistema de supervisión utilizando el software GHENeSys PN y EROS en la Estación de Bombeo "San Juan" en Santiago de Cuba, Cuba. Estas herramientas permiten describir los modelos de los estados del proceso automático local y el funcionamiento del Supervisor, para tener en cuenta, las funciones de Mantenimiento Preventivo y Tratamiento de Alarmas. El IACS parte de la simulación MatLab de los lazos de control principales y utiliza la red jerárquica extendida GHENeSys para modelar un sistema de automatización integrado estructurado modularmente que responde a las demandas funcionales sincronizadas. Esta metodología tiene las ventajas de una modularidad jerárquica completa desde el control local hasta la gestión de producción, varias herramientas modulares de verificación y validación y compatibilidad total con IEC61131. Esto reduce los errores de diseño y el tiempo de implementación con una mayor eficiencia de integración.

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Section: Methodsmentioning

confidence: 56%

Section: Resultsmentioning

confidence: 99%

Design of an Integrated Automation & Control System Using Petri Nets: Case Study

Núñez-Alvarez,

Benítez-Pina,

Acosta-Montoya

et al. 2023

JART

View full text Add to dashboard Cite

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“…They argue that HyperFlow [70] offers a scalable solution for control plane resilience in SDN enabled network. Aly and Kotb [66] used SDN-centralized architecture in which a master controller is connected to a set of slave-controllers. Based on this set-up, they proposed a new Petri-net based mathematical framework for SDN fault-tolerance and named the model FTPN SDN .…”

Section: B Controller Architecturementioning

confidence: 99%

Fault-Tolerance in the Scope of Software-Defined Networking (SDN)

2019

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“…Model. Aly et al [27][28][29] proposed a feedback control theoretic techniques and Petri net modeling to implement fault tolerance for controllers. e work gave promising results, but the feedback control theoretic techniques have put extra burden on the controllers.…”

Section: Fault Tolerance In Ecft Referencementioning

confidence: 99%

Generic Controller Adaptive Load Balancing (GCALB) for SDN Networks

Aly

2019

Journal of Computer Networks and Communications

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Fault tolerance is an important aspect of network resilience. Fault-tolerance mechanisms are required to ensure high availability and high reliability in different environments. e beginning of software-defined networking (SDN) has both presented new challenges and opened a new era to develop new strategies, standards, and architectures to support fault tolerance. In this paper, a study of fault tolerance is performed for two architectures: (1) a single master with multiple slave controllers and (2) multiple slave controllers. e proposed model is called a Generic Controller Adaptive Load Balancing (GCALB) model for SDNs. GCALB adapts the load among slave controllers based on a GCALB algorithm. Mininet simulation tool is utilized for the experimentation phase. Controllers are implemented using floodlights. Experiment results were conducted using GCALB when master controller is taking the responsibility of distributing switches among four and five slave controllers as a case study. roughput and response time metrics are used to measure performance. GCALB is compared with two reference algorithms: (1) HyperFlow (Kreutz et al., 2012), and (2) Enhanced Controller Fault Tolerant (ECFT) (Aly and Al-anazi, 2018). Results are promising as the performance of GCALB increased by 15% and 12% when compared to HyperFlow and by 13% and 10% when compared to ECFT in terms of throughput and response time.

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Towards SDN Fault Tolerance using Petri-Nets

Cited by 9 publications

References 9 publications

Design of an Integrated Automation & Control System Using Petri Nets: Case Study

Design of an Integrated Automation & Control System Using Petri Nets: Case Study

Fault-Tolerance in the Scope of Software-Defined Networking (SDN)

Generic Controller Adaptive Load Balancing (GCALB) for SDN Networks

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