Qosmos’ vision is that future networks will be built on components and leverage open source frameworks. For components from different suppliers to work, they will need to be interlinked with standardized interfaces defined by organizations such as ETSI, ONF, and IETF. In addition, the new component-based architecture will be structured around open source software initiatives such as OPNFV".
"Arno is the first release to build upon the promise of OPNFV (see "OPNFV Delivers Open Source Software to Enable Deployment of Network Functions Virtualization Solutions" - here) —a carrier grade, integrated, open source platform to accelerate the introduction of new NFV products and services. This release provides an initial build of the NFV Infrastructure (NFVI) and Virtual Infrastructure Manager (VIM) components of ETSI NFV architecture".
See "Qosmos Endorses OPNFV Arno as the First Release of an Industry-standard, Open Source NFV Platform" - here.