| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Fed Rio de Janeiro COPPE PEE GTA, Rio De Janeiro - Brazil
[2] Eiras, Rodrigo S., V, Univ Estado Rio de Janeiro FEN DETEL PEL, Rio De Janeiro - Brazil
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | ANNALS OF TELECOMMUNICATIONS; SEP 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Network functions virtualization (NFV) is an important approach in the telecommunications industry. One of the main features of NFV is the execution of network functions in software rather than using specific hardware. These functions can run on virtualization platforms, which can increase service elasticity and reduce infrastructure costs. However, virtualization imposes performance penalties, which can severely impact NFV services. In this work, we analyze this performance impact when the virtualized network function is an HTTP proxy. We then compare two virtualization solutions, i.e., KVM and Docker, under different configurations. Our results show that Docker containers yield performance close to that of native Linux for HTTP proxies since Docker does not employ a hypervisor. We show that KVM incurs a severe performance penalty, which a paravirtualization approach can reduce. We also evaluate how much load balancing in Docker can improve the performance of virtual proxies. We show that, for our scenario, two parallel proxies significantly improve performance. However, we observe a negative impact when increasing the number of proxies since they interfere with each other. (AU) | |
| FAPESP's process: | 15/24494-8 - Communications and processing of big data in cloud and fog computing |
| Grantee: | Nelson Luis Saldanha da Fonseca |
| Support Opportunities: | Research Projects - Thematic Grants |