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Analysis of Network Latency in Virtualized Environments
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (Distributed Systems and Communications Research Group (DISCO))
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (Distributed Systems and Communications Research Group (DISCO))
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (Distributed Systems and Communications Research Group (DISCO))
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (Distributed Systems and Communications Research Group (DISCO))ORCID iD: 0000-0003-4147-9487
2016 (English)In: Proceedings of the IEEE Global Communications Conference, Exhibitions and Industry Forum (GLOBECOM), Washington D. C., U.S.A., December 2016., IEEE Communications Society, 2016Conference paper (Refereed)
Abstract [en]

Virtualization is central to cloud computing systems. It abstracts computing resources to be shared among multiple virtual machines (VMs) that can be easily managed to run multiple applications and services. To benefit from the advantages of cloud computing, and to cope with increasing traffic demands, telecom operators have adopted cloud computing. Telecom services and applications are, however, characterized by real-time responsiveness, strict end-to-end latency, and high reliability. Due to the inherent overhead of virtualization, the network performance of applications and services can be degraded. To improve the performance of emerging applications and services that demand stringent end-to-end latency, and to understand the network performance bottleneck of virtualization, a comprehensive performance measurement and analysis is required. To this end, we conducted controlled and detailed experiments to understand the impact of virtualization on end-to-end latency and the performance of transport protocols in a virtualized environment. We also provide a packet delay breakdown in the virtualization layer which helps in the optimization of hypervisor components. Our experimental results indicate that the end-to-end latency and packet delay in the virtualization layer are increased with co-located VMs.

Place, publisher, year, edition, pages
IEEE Communications Society, 2016.
Keyword [en]
cloud networking in 5G, network functions virtualization (NFV), cloud traffic characterization and measurements, quality-of-service and quality-of-experience in cloud services and networking, cloud network platforms and experimentations
National Category
Engineering and Technology Telecommunications
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-44344OAI: oai:DiVA.org:kau-44344DiVA: diva2:945847
Conference
IEEE Global Communications Conference, Exhibitions and Industry Forum (GLOBECOM)
Projects
High Quality Networked Services in a Mobile World (HITS)
Funder
Knowledge Foundation
Available from: 2016-07-04 Created: 2016-07-04 Last updated: 2016-07-04

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