A measurement study of offloading virtual network functions to the edge.

Autor: Chaudhry, S. R., Liu, P., Wang, X., Cahill, V., Collier, M.
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Zdroj: Journal of Supercomputing; Feb2022, Vol. 78 Issue 2, p1565-1582, 18p
Abstrakt: The deployment of virtual network functions (VNFs) at edge servers potentially impairs the performance of latency-sensitive applications due to their computational cost. This work considers a new approach to addressing this problem that provides line rate acceleration of VNFs by employing field-programmable gate array (FPGA) equipped edge servers. This approach has been validated by practical use cases with both TCP and UDP as underlying protocol on a physical testbed environment. We examine the performance implications of executing a security VNF at an FPGA-equipped edge server. We experimentally demonstrate reduced VNF execution latency and energy consumption for a real-time video streaming application in comparison with a software-only baseline. In particular, the results show that the approach lowers VNF execution latency and power consumption at the edge by up to 44% and 76%, respectively, in our experiments while satisfying time constraints and maintaining confidentiality with high scalability. We also highlight the potential research challenges to make this approach viable in practice. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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