ETSI GS NFV-INF 010 enumerates metrics for NFV infrastructure, management and orchestration service qualities that can impact the end user service qualities delivered by VNF instances hosted on NFV infrastructure. These service quality metrics cover both direct service impairments, such as IP packets lost by NFV virtual networking which impacts end user service latency or quality of experience, and indirect service quality risks, such as NFV management and orchestration failing to continuously and rigorously enforce all anti-affinity rules which increases the risk of an infrastructure failure causing unacceptable VNF user service impact. Performance relationships exist between the metrics described in this document and in other specifications such as [i.5].