Multicast VPN (MVPN) in Rosen Mode is based on the multicast domain (MD) scheme defined in relevant standards. MVPN in Rosen Mode implements multicast service transmission over MPLS/BGP VPNs.
MVPN in Rosen Mode transmits multicast data and control messages of PIM instances in a VPN over a public network to remote sites of the VPN.
With MVPN in Rosen Mode, a public network PIM instance (called a PIM P-instance) does not need to know multicast data transmitted in a PIM VPN instance (called a PIM C-instance), and a PIM C-instance does not need to know multicast data transmitted in a PIM P-instance. Therefore, MVPN in Rosen Mode isolates multicast data between a PIM P-instance and a PIM C-instance.