Multisite Team has conducted successful discussions on the use cases, and produced some preliminary requirements to the upstream community. For an OPNFV project like Multisite which deals with multiple upstream projects/communities, how to conduct work in upstream is vital for our success. Since our usecases have been targeting both existing official top level OpenStack projects (Nova, Neutron, Cinder, Keystone...) as well as new projects (tricircle, kingbird), I want to use the opportunity of the design summit to discuss how to best output our requirements to the upstream projects/communities.