Cobos Dominguez, AntonioMagalhaes Guimaraes, Carlos EduardoOliva Delgado, Antonio de laZabala Orive, Aitor2022-01-122022-01-122021-11-09Cobos, A., Guimaraes, C., de la Oliva, A. & Zabala, A. (9 november, 2021). OpenFlowMon: A Fully Distributed Monitoring Framework for Virtualized Environments [proceedings]. 2021 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN), Heraklion, Greece.978-1-6654-3983-1https://hdl.handle.net/10016/33869Proceedings of: 2021 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN), 9 November 2021, Heraklion, Greece.Network monitoring allows a continuous assessment on the health and performance of the network infrastructure. With the significant change on how networks are deployed and operated, mainly due to the advent of virtualization technologies, alternative monitoring approaches are emerging to provide a finer-grained flow monitoring to complement already existing mechanisms and capabilities. In this paper, we proposed and developed an Open-Source Flow Monitoring Framework (OpenFlowMon), a fully distributed monitoring framework implemented solely with open-source solutions. This framework is used to assess the performance and the overhead introduced by two different flow monitoring approaches: (i) switch level and (ii) compute node level monitoring. Results show that monitoring at compute node level not only reduces the overhead but also mitigates a potential complex post-processing in east-to-west traffic.7eng© 2021, IEEE.ConferencesSwitchesNetwork function virtualizationVirtualizationSoftware defined networkingMonitoringOpen source softwareconference proceedingsTelecomunicacioneshttps://doi.org/10.1109/NFV-SDN53031.2021.9665014open access1411472021 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN)CC/0000032751