<p>Network operators are facing significant challenges meeting the demand for more bandwidth, agile infrastructures, service growths, while keeping costs low. Network Functions Virtualization (NFV) and Cloud Computing are emerging as key trends of 5G network architectures: flexibility, agility, fast instantiation times, consolidation, Commercial Off The Shelf hardware support and significant cost savings. NFV leverages Cloud Computing principles to move the data-plane network functions from expensive, closed and proprietary hardware to so-called Virtual Network Functions (VNFs). We deal with the management of virtual computing resources (Unikernels) for the execution of VNFs. This functionality is performed by the Virtual Infrastructure Manager (VIM) in the NFV MANagement and Orchestration (MANO) reference architecture. We have improved the OpenStack, Nomad and OpenVIM VIMs by introducing the support for special-purpose Unikernels and implement a tuned version with the specific goal of reducing the duration of the instantiation process. We realize a performance evaluation of the VIMs, both considering stock and the tuned versions. The results of this performance evaluation are reported in this dataset.</p
