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

[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.

Patrik


Muhammad Asif Rao wrote:
> as far as i know this feature is not available yet. lsp is only p2p
> 
> @$IF
> 
> On Thu, Dec 3, 2009 at 8:24 PM, Clarke Morledge <chmorl at wm.edu> wrote:
> 
>> I am in the process of building a VPLS implementation using LDP to build
>> the LSPs but using BGP to handle the L2 signaling:
>>
>> I know that there is a dynamic way to configure point-to-multipoint (P2MP)
>> LSPs when using RSVP with the "provider-tunnel" keyword for each VPLS
>> routing instance , but I don't quite understand how to do this with LDP. I'm
>> getting a little lost when reading this:
>>
>>
>> http://jnpr.net/techpubs/en_US/junos10.0/information-products/topic-collections/feature-guide/vpls-traffic-flooding-p2mp-lsp-solutions.html
>>
>> I see that there is some IETF draft work being done on P2MP for LDP:
>>
>> http://tools.ietf.org/html/draft-ietf-mpls-ldp-p2mp-08
>>
>> Does this mean that dynamic P2MP LSPs for LDP with VPLS isn't available
>> yet, or is there some other workaround?
>>
>> I'm having some difficulty trying to wrap my head around this.  The
>> ultimate purpose is to cut down on unnecessary packet replication due to
>> broadcast, multicast, and unknown unicast within VPLS.  I would rather not
>> use RSVP since it is more complex to configure than LDP, but perhaps LDP
>> isn't ready for P2MP for primetime?
>>
>>
>> Clarke Morledge
>> College of William and Mary
>> Information Technology - Network Engineering
>> Jones Hall (Room 18)
>> Williamsburg VA 23187
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-- 

//Patrik

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