System Requirements for Dual PIM Multicast VPNs: Draft Rosen

JUNOS Release 8.2 or later for support on MX-series routing platforms.
JUNOS Release 7.2 or later for MSDP in a Layer 3 VPN.
JUNOS Release 7.1 or later for multicast distribution trees for data.
JUNOS Release 6.4 or later for PIM sparse mode graceful restart and configuring a PE router as the VPN C-RP.
JUNOS Release 5.5 or later for PIM dense mode and logical loopback interfaces.
JUNOS Release 5.3 or later for PIM sparse mode.
Any hardware needed in your network to enable your Juniper Networks routers to act as PE routers.
On M-series and T-series routers, a Tunnel Services PIC or for any provider core router acting as an SP-RP.
On M-series and T-series routers, a Tunnel Services PIC for any PE router where GRE tunneling is needed.
On M-series and T-series routers, a Tunnel Services PIC for any CE or PE router acting as a DR or VPN C-RP.
On M-series and T-series routers, a Tunnel Services PIC is required for GRE tunneling, as specified in Section Two of the IETF Internet draft Multicast in MPLS/BGP VPNs.
For point-to-multipoint TE, a Tunnel Services PIC or vrf-tabel-label configuration.