http://www.rfc-editor.org/rfc/rfc5501.txt
RFC 5501: Requirements for Multicast Support in Virtual Private LAN Services, Y. Kamite, Y. Wada, Y. Serbest, T. Morin, L. Fang2009-03-01T23:00:00-00:00This document provides functional requirements for network solutions that support multicast over Virtual Private LAN Service (VPLS). It specifies requirements both from the end user and service provider standpoints. It is intended that potential solutions will use these requirements as guidelines. This memo provides information for the Internet community.