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VoerEir focus on helping operators be successful with their NFV transformation. A cornerstone in our strategy is our list of NFVI performance-KPIs, which determine the performance of VNFs deployed on top of a specific NFVI. There are two prime use cases of these KPIs; First, for a VNF vendor to be able to commit to a performance SLA, the vendor must know the characteristics of the infrastructure on which his VNF shall be deployed. Second, if a VNF does not fulfill his performance SLAs, the operator must be able to sort out where the responsibility lays, on the VNF or the NFVI vendor. The tricky part is to find the KPIs which are essential for different types of VNFs' performance. This webinar describes VoerEir’s way of reasoning when creating the list of performance-KPIs and gives examples of detailed definitions for different kinds of KPIs. It also talks about how VoerEir is working with this in industry forums, and how our test system Touchstone can is used to perform VoerEir’s NFVI evaluation service.