End-to-End Network Delay Guarantees for Real-Time Systems Using SDN

Rakesh Kumar, Monowar Hasan, Smruti Padhy, Konstantin Evchenko, Lavanya Piramanayagam, Sibin Mohan, Rakesh B. Bobba

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Real-time systems (RTS) require end-to-end delay guarantees for the delivery of network packets. In this paper, we propose a framework to reduce the management and integration overheads for such real-time (RT) network flows by leveraging the capabilities of software-defined networking (SDN) - capabilities that include global visibility and management of the network. Given the specifications of flows that must meet hard real-time requirements, our framework synthesizes paths through the network. To guarantee that these flows meet both, their bandwidth and end-to-end timing requirements, our framework solves a multi-constraint optimization problem using a heuristic algorithm. We use exhaustive emulations and experiments on hardware switches to demonstrate our techniques and feasibility of our approach. As a result of this work, SDNs become 'delay-aware' and thus can be adapted for use in safety-critical and other delay-sensitive applications.

Original languageEnglish (US)
Title of host publicationProceedings - 2017 IEEE Real-Time Systems Symposium, RTSS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages12
ISBN (Electronic)9781538614143
StatePublished - Jul 2 2017
Event38th IEEE Real-Time Systems Symposium, RTSS 2017 - Paris, France
Duration: Oct 5 2017Oct 8 2017

Publication series

NameProceedings - Real-Time Systems Symposium
ISSN (Print)1052-8725


Other38th IEEE Real-Time Systems Symposium, RTSS 2017


  • QoS
  • Real-time-Networks
  • SDN

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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