[j-nsp] The P2MP LSP story when using LDP for VPLS?

[Stefan Fouant]

> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-
> bounces at puck.nether.net] On Behalf Of Patrik Olsson
> 
> Yes, today P2MP can only be achieved with RSVP. Also, P2MP is thought
> for a different application than VPLS perhaps. VPLS is bidirectional
> any-to-any communication. P2MP is one-way from-on-to-many
> communication.

One can accomplish any-to-any communications with a series of one-to-many
tunnels from each ingress PE to each egress PE in the VPN set.  It's way
more efficient than having to build a whole bunch of one-to-one tunnels for
this type of application.

It's also used in some of the newer mVPN approaches such as those that use
selective or inclusive p2mp tunnels for building multicast distribution
trees.

Stefan Fouant
www.shortestpathfirst.net
GPG Key ID: 0xB5E3803D