Re: RSVP and LDP

I think things are being mixed up here .

When RSVP is used with TE .. RSVP will do the label distribution .
Hence role of LDP as a protocol for label distibution is eliminated as you
are doing same thing using RSVP .

And also ; i believe that in MPLS L3 VPN scenario as well ; running only
RSVP and no LDP anywhere in core can achieve your goal .

Regards
Gaurav Madan
CCIE

On Thu, Feb 2, 2012 at 5:14 PM, Mustafa Yadav <mustafa.yadav_at_gmail.com>wrote:

> so when ldp is going down all te tunnles are going to be down?
>
> but in one of my case ldp goes down but te tunnels did not.
>
> Also I seee ldp neigbor is up for 4 hours but mpls te tunnel up for 8
> hours.and 4 hours ago ldp went down.
>
> On Thu, Feb 2, 2012 at 1:18 PM, sundeep sadhwani <
> sundeep.sadhwani_at_gmail.com
> > wrote:
>
> > Hi Mustafa,
> >
> > RSVP is used for reservation of bandwidth in TE environment( i am giving
> u
> > a very high level view). However plain MPLS-TE is not used in production
> > scenario as SPs have MPLS-VPN as well. for that purpose we require LDP as
> > well to distribute IGP labels that will be required for PE to PE
> > communication in case of MPLS-VPN.
> >
> > Regards
> > Sundeep
> >
> > On Thu, Feb 2, 2012 at 4:41 PM, Mustafa Yadav <mustafa.yadav_at_gmail.com
> >wrote:
> >
> >> HD0,
> >>
> >>
> >> In a cisco network I have seen mpls traffic engineneering tunnels are
> >> being
> >> used .So as far as I know rsvp must be configured .But I alos see that
> ldp
> >> is configured in all boxes.why is that?Is not rsvp enough for
> distrbuting
> >> labels?
> >>
> >>
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Received on Thu Feb 02 2012 - 17:43:22 ART