The MPLS WG Archive

["Vijayanand C - CTD, Chennai." <vijayc@ctd.hcltech.com>]

Hi rahul,
What happens when the P2MP LSP for the (s,g) changes or goes down. How is
the change communicated between the pim-sm peers in the edge? Or what
corrective action is taken if the LSP goes down ?

Regards,
Vijay

> -----Original Message-----
> From: Rahul Aggarwal [mailto:rahul@juniper.net]
> Sent: Tuesday, April 27, 2004 3:29 AM
> To: Ali Boudani
> Cc: mpls@UU.NET
> Subject: Re: draft-raggarwa-pim-sm-mpls-te-00.txt
> 
> 
> 
> Hi Ali,
> 
> Sorry for the delay.
> 
> On Fri, 9 Apr 2004, Ali Boudani wrote:
> 
> > Hello rahul,
> > You said in your darft that it is desired to keep core 
> routers free of
> > multicast routing state ..
> 
> Yes.
> 
> > OK but what exactly happen in "core router
> > P1" in your figure 1. P1 is a branching node ?? Join messages should
> > stop there normally but you don't have multicast protocol in core
> > network ??
> 
> Multicast routing state is exchanged between the edge PEs 
> using procedures
> described in section 2. P1 does not run a multicast routing protocol.
> 
> > do you intend to duplicate packets from Spe1 one to R2 and
> > one to R4 ?
> >
> 
> No. Spe1 will send one MPLS packet to P1. P1 will do the 
> replication and
> send the packet to Rpe2 and Rpe3.
> 
> rahul
> 
> > Thanx
> >
> > Ali
> >
> >
>