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I-PMSI InstantiationP-Multicast Trees PE 1 CE-B2 CE-B3 PE 3 PE 2 PE 4 VPN A Site 3 CE -A1 CE-B1 CE-A2 CE-A4 CE-A3 VPN B Site 1 VPN B Site 2 VPN A Site 4 VPN B Site 3 VRF-A VRF-A VRF-A VRF-B VRF-B VRF-B VPN A Site 2 VPN A Site 1 VRF-A RR MVPN Membership Discovery: C-S -> C-G PIM C-Join C-S, C-G Aggregate Tree – PE2 as Root BGP Signaled MVPN – Tree Binding: |