Abstract
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 language | English |
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Journal | IEEE Transactions on Cloud Computing |
DOIs | |
Publication status | Accepted/In press - 2021 |
Bibliographical note
Publisher Copyright:IEEE
Keywords
- 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