By “p2mp” I’m thinking you are speaking of a rooted multipoint etree type environment… if so….

Interesting, I’ve never done this before but here’s what I found …  I see this in my lab mx960…

me@lab-960# set interfaces ae40.100 etree-ac-role ?

Possible completions:

  leaf                 ETREE leaf interface

  root                 ETREE root interface

https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/concept/evpn-etree-overview.html

https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/example/example-etree-service-evpn-configuring.html

- Aaron