Draft Rosen
Glenn Warnock B.Sc., Mira Ghafary B.Sc., Ghassan Shaheen M.Sc. · 2015
This chapter describes the Draft Rosen approach to MVPN in Alcatel-Lucent SR OS. Draft Rosen uses generic routing encapsulation (GRE) encapsulation for the multicast distribution tree (MDT) and uses either PIM ASM or BGP Auto-Discovery (A-D) to discover the PE members of the MVPN. Draft Rosen uses either PIM an any source multicast (ASM) or MP-BGP A-D with address family MDT-SAFI and PIM source-specific multicast (SSM) to build the I-Provider Multicast Service Interface (PMSI) between all PEs in the MVPN. When PE routers in the VPN are configured for Draft Rosen MVPN, a provider group (P-group) address is specified. In Draft Rosen, customer data is transported across the service provider core on a PIM MDT, so PIM is required on all P and PE routers in the core. The I-PMSI transports customer multicast traffic across the core and to exchange customer PIM control messages between the PE routers.