RE: MPLS TE tunnels from PE to P and PE.

Do you have LDP enabled on the tunnels head end and LDP targeted hello accept on the tunnel tail end? If you're running L3VPN over TE and your TE tunnels are not PE to PE then PHP will happen one hop too soon and traffic will get blackholed in the MPLS core. The fix for this is to run LDP over TE so that you add an additional label to the stack.

Brian McGahan, CCIE #8593 (R&S/SP/Security)
bmcgahan_at_INE.com
 
Internetwork Expert, Inc.
http://www.INE.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Darlington Ngaiso
Sent: Wednesday, January 09, 2013 4:51 AM
To: Group Study
Subject: MPLS TE tunnels from PE to P and PE.

Im trying to simulate and run MPLS TE tunnels from PE to P and P and PE so that I dont use mpls

R1(CE)----R2(PE)(2.2.2.2)(tunn19)-----------(Tunn23)R3------R4--------R5---------R6(tunn619)-----XR1(19.19.19.19)(tunn19)------XR2(CE)

Instead of running a tunnel and running targetted LDP over the TEs , Im trying to run tunnels

from R2---R6 and from R6---XR1

and vice-versa Tunnels from XR1 --- R3 and from R3 --- R2 so that I have a complete RSVP LSP

In the config

I have a static route from R2 going into the Tunnel

R2(config)#ip route 19.19.19.19 255.255.255.255 tun19

R6(config)#ip route 19.19.19.19 255.255.255.255 tun619

 and

From the other end

XR1 to R2

XR1(config)#ip route 2.2.2.2 255.255.255.255 tun19

R2(config)#p route 2.2.2.2 255.255.255.255 tun23

If someone has tried it please advise if Im missing something

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Received on Wed Jan 09 2013 - 07:06:09 ART