[j-nsp] Next Gen MVPN flooding assistance

[Chris Evans]

I took a few minutes to setup NG-MVPN using RSVP-TE P2MP LSP in my lab. I
have 3 boxes setup in a triangle format. I have multicast flowing properly,
however I'm seeing a weird anomaly that i'd like to get some clarification
on.****
All of the P2MP RSVP sessions are up properly, things appear to be signaled
properly, traffic flows properly on the devices that should be getting it.
What I am seeing is on the sender PE, whenever there is a receiver on a
far-end PE's requesting traffic the sender PE floods its to both downstream
PEs. It looks to be flooding it across two LSP paths as I see traffic rates
double what they should be. If I stop the receiver both PEs stop getting
traffic, as expected.

On the PE that doesn't have the receiver if I do 'show multicast route
instance <name> extension' it shows that route in the table, shows that is
received via PIM  (forwarding devices show MVPN) and it also shows it as
pruned.

Anyone seen this?