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PMSI: P-Multicast Service Interface New terms introduced to decouple tree from service A PE delivers packet to PMSI, then all the required PEs will get than packet and known which MVPN it belongs to Three types of PMSI MI-PMSI: Multipoint Inclusive, all ? all All PEs of an MVPN can transmit to all PEs UI-PMSI: Unidirectional Inclusive, some ? all Unidirectional, selected PEs can transmit to all PEs Selective: S-PMSI, some ? some Unidirectional, selected PEs can transmit to selected PEs |