RE: mpls ip in tunnel interface

It depends on how big your topology is.

If you just did

P-P with nothing between and the tunnel terminating between the two then you
probably didn't have any problems ;) Enlarge the topology then you will see
the problem introduced.

Regards,
 
Tyson Scott - CCIE #13513 R&S, Security, and SP
Managing Partner / Sr. Instructor - IPexpert, Inc.
Mailto: tscott_at_ipexpert.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Florian Frotzler
Sent: Friday, June 04, 2010 12:07 PM
To: 'groupstudy'
Subject: mpls ip in tunnel interface

Hi group,

Just wondering, what I know is that on an MPLS-TE tunnel interface between
two P routers you need to configure mpls ip because else you end up breaking
the end2end LSP. Are there any other scenarios where you would need to set
mpls ip on the tunnel interface? I am asking because I saw an example in a
forum somewhere, where there was LDP activated on the tunnel interface, but
this was between two PE routers. Only difference was that the tunnel
interface was bound to Lo1 instead of Lo0. But I labbed it and using Lo1 as
tunnel interface without configuring mpls ip on it works just fine when you
do ping <Lo0-PE2> source <Lo0-PE1>.

Cheers,
Florian

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Received on Fri Jun 04 2010 - 14:07:40 ART