NEC NEC Politecnico di Torino University of Trento University of Trento Streaming video on P2P overlays puts extremely high demands and stress on the underlying network, especially in case of TV and live streaming. The EU research project NAPA-WINE has devised an overall architecture for live video streaming that supports the needs of the users and content providers, while being respective of network-level needs, as reducing inter-AS traffic using ALTO-like services. In this document, we describe generic elements of this software architecture for P2P live streaming and derive the corresponding implications for standardizing a Peer-to-Peer streaming protocol.