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PE-PE Routing Exchange In draft-rosen, C-PIM instances exchange PIM messages over the MDT as if it were a LAN Per-customer PIM peering among the PEs By contrast, one BGP instance carries all customer unicast routes among PEs PIM Hellos can be eliminated, but Join/Prunes remain In new draft, BGP is proposed, as in unicast New AFI/SAFI Advertisement contains essentially the same info as a PIM join or prune (source, group, PE sending the message) RDs are used to disambiguate customer multicast group and source addresses BGP route reflectors may be used |