> Embedded-RP is the way to go for interdomain multicast (well for > ASM, for SSM you obviously don't need it), but intradomain you can > use BSR for RP discovery as well. And for Bidir-PIM for IPv6, you probably don't want to use Embedded- RP, or else you could have data triggered DF-election on each link a packet is traveling upstream to the RP. Dino