Hi all, I'm having trouble interpreting under what circumstance section 10 of BGP MVPN comes into play. The way I read this section, upon the receipt of PIM/IGMP Join to (*,G) the Receiver Site PE does not signal Type 6 or Type 7 Joins until a Type 5 Source Active route is received from a Sender Site PE. If Section 10 assumes the use of ASM groups in the VPN, why develop a Type 6 Shared Tree Join A-D route for unknown sources? What are the practical minimum Juniper configurations to support Section 10 for ASM and (*,G) PIM Join when the PE doesn't know a source? CE1---PE1,C-RP-----P-----PE2---CE2 Sender Site-------------------Receiver Site 1. CE1 has no active source 2. CE2 forwards PIM Join (*,G) to PE2 toward PE1,C-RP 3. PE2 eats PIM Join, maintains (*,G) state 4. CE1 generates Register messages to PE1 5. PE1 originates Type 5 (S,G) 6. PE2 receives Type 5 (S,G) 7. PE2 verifies existing (*,G) state 8. PE2 advertises Type 7 Join (S,G) 9. PE2 does PMSI and P-Tunnel attachment 10. PE1 receives (S,G) from PE2 11. PE1 adds PMSI to downstream interfaces 12. Multicast flow end to end 13. Achievement unlocked! I'm least sure about steps 2 & 3. Comprehension challenged, Jason