The use case demonstrates SONATA’s support for internetworking between a client service provider and a host service provider to accomplish an end-to-end service.
The scenario includes more than one service provider involved in the establishment of an NFV network service, where both are running independent instances of the SONATA platform. In particular, the case is considered where one service provider is responsible for the VNFs and their composition into a network service, while a different service provider is providing the NFV infrastructure on which the VNFs are hosted. The model is a 'client/server' model between service providers rather than a 'peer-peer' model. The main requirement captured by this use case relates to the business model rather than the detailed architecture of the SONATA system.