[j-nsp] lsp required for vpls?

[snort bsd]

I think you got confused with concepts of signaling protocol and lsp istelf.

mpls is foundation of all new technologies that rely on mpls label switching. but mpls lsp depends on signaling protocols such as rsvp or ldp for the label swapping. bgp is still the protocol that utilize the lsp (in the table inet.3).

vpls can be implemented via either ldp based (martini) or bgp driven (kompella).



--- On Fri, 7/8/09, Simon Chen <simonchennj at gmail.com> wrote:

> From: Simon Chen <simonchennj at gmail.com>
> Subject: Re: [j-nsp] lsp required for vpls?
> To: "Harry Reynolds" <harry at juniper.net>
> Cc: "juniper-nsp at puck.nether.net" <juniper-nsp at puck.nether.net>
> Received: Friday, 7 August, 2009, 5:09 AM
> Thank you all for the reply.
> 
> Do I need to explicitly configure MPLS LSPs between the PEs
> (using
> protocols/mpls/label-swithing-path)? Or just configure RSVP
> or LDP on
> the PEs so that LSPs can be automatically established by
> VPLS?
> 
> Thanks.
> -Simon
> 
> On Thu, Aug 6, 2009 at 1:12 PM, Harry Reynolds<harry at juniper.net>
> wrote:
> > Ldp can both signal vpls (ldp based vpls control
> plane) and establish lsps. You either single vpls with ldp
> or bgp, and then transport via a lsp between pes. This
> transport lsp can be rsvp or ldp signaled.
> >
> > Regards
> >
> >
> >
> > -----Original Message-----
> > From: juniper-nsp-bounces at puck.nether.net
> [mailto:juniper-nsp-bounces at puck.nether.net]
> On Behalf Of Simon Chen
> > Sent: Thursday, August 06, 2009 9:35 AM
> > To: juniper-nsp at puck.nether.net
> > Subject: [j-nsp] lsp required for vpls?
> >
> > Hi all,
> >
> > I read in the VPN configuration guide that LSPs
> between PEs are required for VPLS. However, I am able to
> establish a VPLS setup using LDP signalling, but without
> MPLS-LSP between PEs.
> >
> > Does anyone know why? My guess is that LSP is only
> required if you're going for the BGP signalling, but not
> required if you're doing LDP.
> > Can anyone clarify this?
> >
> > Thanks.
> > -Simon
> > _______________________________________________
> > juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
> >
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> 


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