Re: Just shy of OT MPLS Question

Scott - may you get the gift of many hard and challenging questions for
Christmas ;-)

Thanks guys, nicely done, appreciate all the effort and answers! Humm ... a
lab test? Smoke is coming from out my ears now ... sounds like a plan.

Also, I passed cvoice today ;-) ... not quite the 'big one' but it was a
nice one to get and caused me to read / study / cram ;-)

Andrew

.
On Tue, Dec 22, 2009 at 2:36 AM, Rick Mur <rmur_at_ipexpert.com> wrote:

> I'm also a bit confused with the term MPLS Tunnels. Do you mean a normal
> MPLS VPN or a TE Tunnel, since both require totally different things.
>
> For IBGP it's not really recommended and same as Bryan said, I never tested
> this. It does is an implementation for Inter-AS configurations to use the
> BGP send-label command to advertise prefixes and labels in BGP, which works
> :-)
>
> For TE tunnels, you cannot allocate labels through BGP, but solely through
> RSVP and a link-state protocol. This is because of he dynamic behavior and
> the SPF protocol that TE uses to calculate paths throughout the network. A
> distance vector protocol like BGP would not work as within a link-state you
> have the full topology of the network available to calculate your path on
> (within an area of course).
>
> So for MPLS VPN's this should work, advertise the PE loopbacks in IPv4 BGP
> and advertise VPN labels in VPNv4 BGP. You should run BGP on the P of
course
> then. Cool thing to lab it up :-)
>
>
> --
> Regards,
>
> Rick Mur
> CCIE2 #21946 (R&S / Service Provider)
> Sr. Support Engineer  IPexpert, Inc.
> URL: http://www.IPexpert.com
>
> On 22 dec 2009, at 06:29, Scott Morris wrote:
>
> > Yup, you can.
> >
> >
> >
> >
> > *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
> >
> > JNCIE-M #153, JNCIS-ER, CISSP, et al.
> >
> > JNCI-M, JNCI-ER
> >
> > evil_at_ine.com
> >
> >
> > Internetwork Expert, Inc.
> >
> > http://www.InternetworkExpert.com
> >
> > Toll Free: 877-224-8987
> >
> > Outside US: 775-826-4344
> >
> >
> > Knowledge is power.
> >
> > Power corrupts.
> >
> > Study hard and be Eeeeviiiil......
> >
> >
> >
> > JR Garcia wrote:
> >> pretty sure you can exchange labels via ibgp using the "send-label"
> >> command. Eg: neighbor 1.1.1.1 send-label
> >
> >
> > Blogs and organic groups at http://www.ccie.net
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>

--
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net