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Title: Fault-tolerance in the scope of Software-Defined Networking (SDN)
Author: Rehman, A. U.
Aguiar, Rui. L.
Barraca, João Paulo
Keywords: Software-defined networking
Failure detection
Failure recovery
Fault-tolerance issues
Network programmability
Network softwarization
Mission-critical communications
Issue Date: 2019
Abstract: Fault-tolerance is an essential aspect of network resilience. Fault-tolerance mechanisms are required to ensure high availability and high reliability in systems. The advent of software-defined networking (SDN) has both presented new challenges and opened new paths to develop novel strategies, architectures, and standards to support fault-tolerance. In this survey, we address SDN fault-tolerance and discuss the OpenFlow fault-tolerance support for failure recovery. We highlight the mechanism used for failure recovery in Carrier-grade networks that includes detection and recovery phases. Furthermore, we highlight SDN-specific fault-tolerance issues and provide a comprehensive overview of the state-ofthe-art SDN fault-tolerance research efforts. We then discuss and structure SDN fault-tolerance research according to three distinct SDN planes (i.e., data, control, and application). Finally, we conclude enumerating future research directions for SDN fault-tolerance development.
Peer review: yes
DOI: 10.1109/ACCESS.2019.2939115
ISSN: 2169-3536
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Appears in Collections:DETI - Artigos
IT - Artigos

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