In addition to discovering unicast MPLS L3VPNs, as described in “MPLS L3VPNs” on page 15, MPLS Manager discovers multicast MPLS L3VPNs, as defined in draft-ietf-l3vpn-2547bis-mcast and draft-ietf-l3vpn-2547bis-mcast-bgp. Specifically, MPLS Manager discovers Next Generation Multicast VPNs (NG MVPNs) that are implemented on Juniper M/T Series routers running JUNOS 9.0 or higher.

NG MVPN extends the 2547 unicast VPN service offering to include support for IP multicast. Like 2547 VPN unicast, NG MVPN uses BGPv4 for signaling and MPLS LSPs for data transport.