EVPN P2MP bud router support

Junos OS supports configuring a point-to-multipoint (P2MP) label-switched path (LSP) as a provider tunnel on a bud node. The bud node functions both as an egress node and a transit node. To enable a bud node to support P2MP LSP, include the evpn p2mp-bud-support statement at the [edit routing-instances routing-instance-name protocols evpn] hierarchy level.