The present document specifies the structure and format of a VNF package file and its constituents, fulfilling the requirements specified in ETSI GS NFV-IFA 011 [1] for a VNF package.
The present document specifies requirements for the purpose of Software Modifications, such that NFV service availability and continuity is maintained. All types of software related to Network Function Virtualisation (NFV) - e.g. Virtual Network Functions (VNF), Management and Orchestration (MANO) and Network Function Virtualisation Infrastructure (NFVI) as well as required controlling and supporting functionality will be addressed. Where applicable, external specifications may be referenced to avoid duplication of work. The present document contains normative provisions.
The present document provides requirements for the hypervisor domain as it pertains to an operator's network. It focuses on gaps between Network Functions Virtualisation (NFV) use cases and the industry state of art at the time of publication. Therefore requirements that are deemed to be supported by most hypervisor solutions at the time of publication are not repeated in the present document.
The present document reviews virtualisation technologies and studies their impact on the NFV architectural framework and specifications. It also provides an analysis of the pros and cons of these technologies.
The present document specifies performance benchmarking metrics for virtual switching, with the goal that the metrics will adequately quantify performance gains achieved through virtual switch acceleration conforming to the associated requirements specified herein. The acceleration-related requirements will be applicable to common virtual switching functions across usage models such as packet delivery into VNFs, network overlay and tunnel termination, stateful Network Address Translators (NAT), service chaining, load balancing and, in general, match-action based policies/flows applied to traffic going to/from the VMs. The present document will also provide deployment scenarios with applicability to multiple vendor implementations and recommendations for follow-on proof of concept activities.
The contribution may have an indirect but positive impact on both European SMEs and societies. For SMEs, especially those in IoT or data interoperability, improvements to the SAREF framework and tools could simplify the reuse of standards and reduce the effort to contribute new domain-specific content. By streamlining documentation and validation workflows, the project may lower technical barriers and help smaller organizations align with semantic standards. For European societies, SAREF is used in domains of public interest—such as energy efficiency, smart cities, and environmental monitoring. Enhancing its quality and maintainability may support more interoperable and sustainable digital solutions over time. Though effects are not immediate, the project strengthens infrastructure that can benefit societal initiatives based on interoperable data.
Impact on society (7th Open Call)
The SAREF ontology suite suffers from inconsistencies across extensions, due to historically parallel development efforts. While recent STFs (641, 653) addressed these through new ontology patterns and a revised framework, important steps remain unfunded: publication of updated documentation, integration of conformance checks, and automation of ETSI specification generation.
With this fellowship, I directly support the ICT Rolling Plan's "Key Enablers – Data Interoperability" priority. This activity enhances semantic interoperability in IoT contexts, ensuring continuity in the evolution of a foundational European ontology standard (SAREF). It also aligns with EC expectations for faster standard evolution and broader stakeholder involvement, notably in sectors such as smart cities, energy, and digital twins.
The main challenge is sustainability: reducing the manual effort needed to maintain and extend SAREF. The current publication workflow lacks automation and centralization, leading to delays and fragmentation. The revision of the SAREF Pipeline software and the automation of specification generation are technically complex due to the lack of existing tools for parsing OWL ontologies into ETSI-compliant documents. This proposal addresses these challenges through targeted, expert-driven development efforts, based on proven tools and methods already piloted in past STFs.
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