ISG NFV has developed over 80 different reports and specifications for the virtualisation of network functions. NFV publications describe and specify virtualisation requirements, architecture framework, functional components and their interfaces, as well as the protocols and the APIs for these interfaces. ISG NFV also studies VNF performance, reliability, and resiliency matters, analyses the security challenges linked to virtualisation (trust, attestation, regulation). NFV specifies requirements for Management and Orchestration, for hardware acceleration, etc. And a lot is ongoing!