Improving Dependability via Deadline Guarantees in Commodity Real-time Networks

Software-defined Networking (SDN) can facilitate the deployment of deterministic algorithms with stringent Quality of Service (QoS) requirements that pave the way for commodity Real-time (RT) networks. However, current QoS approaches are conservative and under-provision the network, that becomes a b...

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Bibliographic Details
Published in2020 IEEE Globecom Workshops (GC Wkshps pp. 1 - 6
Main Authors Kashinath, Ashish, Hasan, Monowar, Mohan, Sibin, Bobba, Rakesh B, Mittal, Radhika
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2020
Subjects
Certification
Conferences
Measurement
Optimization
Quality of service
Real-time systems
Robustness
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Summary:Software-defined Networking (SDN) can facilitate the deployment of deterministic algorithms with stringent Quality of Service (QoS) requirements that pave the way for commodity Real-time (RT) networks. However, current QoS approaches are conservative and under-provision the network, that becomes a bottleneck when scaling or upgrading infrastructure. In this paper, we argue that the use of fixed priorities for flows-a common practice in RT networks, is the root-cause of this issue. We develop algorithms that use the global view provided by SDN to develop on-demand, variable priority schemes. Evaluation shows that this "correct by construction" approach increases network utilization while still meeting the necessary QoS requirements, thereby improving network robustness under high utilization.
DOI:10.1109/GCWkshps50303.2020.9367550