Accurate and Efficient Monitoring for Virtualized SDN in Clouds

Gyeongsik Yang, Yeonho Yoo, Minkoo Kang, Heesang Jin, Chuck Yoo

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


This paper presents V-Sight, a network monitoring framework for programmable virtual networks in clouds. Network virtualization based on software-defined networking (SDN-NV) in clouds makes it possible to realize programmable virtual networks; consequently, this technology offers many benefits to cloud services for tenants. However, to the best of our knowledge, network monitoring, which is a prerequisite for managing and optimizing virtual networks, has not been investigated in the context of SDN-NV systems. As the first framework for network monitoring in SDN-NV, we identify three challenges: non-isolated and inaccurate statistics, high monitoring delay, and excessive control channel consumption for gathering statistics. To address these challenges, V-Sight introduces three key mechanisms: 1) statistics virtualization for isolated statistics, 2) transmission disaggregation for reduced transmission delay, and 3) pCollector aggregation for efficient control channel consumption. The evaluation results reveal that V-Sight successfully provides accurate and isolated statistics while reducing the monitoring delay and control channel consumption in orders of magnitude. We also show that V-Sight can achieve a data plane throughput close to that of non-virtualized SDN.

Original languageEnglish
JournalIEEE Transactions on Cloud Computing
Publication statusAccepted/In press - 2021

Bibliographical note

Publisher Copyright:


  • Cloud computing
  • Control systems
  • Delays
  • Distributed systems
  • Monitoring
  • Network management
  • Network monitoring
  • Payloads
  • Virtual machine monitors
  • Virtualization

ASJC Scopus subject areas

  • Software
  • Information Systems
  • Hardware and Architecture
  • Computer Science Applications
  • Computer Networks and Communications


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