Re: Just shy of OT MPLS Question

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.
> 
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> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
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> JR Garcia wrote:
>> pretty sure you can exchange labels via ibgp using the "send-label"
>> command. Eg: neighbor 1.1.1.1 send-label  
> 
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