I guess there should be no special precautions when configuring mpls-te between
areas using ospf/isis as an igp
One thing I can think of is to make sure that the mpls-te router-id's gets
propagated between the areas
And if jou just happened to run level-1 intra-area than you would need to
enable the mpls-te for level-2 as well on the inter-area peers (but you've
mentioned you're familiar with that already)
Diferent situation is however when you don't have the mpls-te router-id's
inforamtion from the remote area -this happens when you need to configure
inter-as mple-te
ASBR Forced Link Flooding configured at the boundary routers -boundary links
1. enable
2. configure terminal
3. interface type slot/port
4. ip address ip-address mask [secondary]
5. mpls traffic-eng passive-interface nbr-te-id te-router-id [nbr-if-addr
if-addr] [nbr-igp-id {isis sysid | ospf sysid}]
6. mpls traffic-eng administrative-weight weight
the inter as link has to be included in the igp
-but has to be configured as passive interface so that it's paramenters
specified above can be advertised throughout the particular as and be
considered by the tunnel head-end
adam
-----Original Message-----
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Sent: Monday, October 11, 2010 6:00 PM
To: [email protected]
Subject: CCIE_SP Digest, Vol 43, Issue 9
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Today's Topics:
1. Re: Traffic Engineering interarea ISIS (Tyson Scott)
----------------------------------------------------------------------
Message: 1
Date: Sun, 10 Oct 2010 12:03:01 -0400
From: "Tyson Scott" <[email protected]>
To: "'Bruno Alves Barata'" <[email protected]>,
<[email protected]>
Subject: Re: [OSL | CCIE_SP] Traffic Engineering interarea ISIS
Message-ID: <006001cb6894$9f2917b0$dd7b47...@com>
Content-Type: text/plain; charset="us-ascii"
If you use the verbatim option on an explicit path it doesn't matter what
IGP you are using.
Marko wrote a blog on this a while back as relating to EIGRP and MPLS TE but
the same logic can be applied.
http://blog.ipexpert.com/2010/06/02/old-ccie-myths-mpls-traffic-engineering/
Regards,
Tyson Scott - CCIE #13513 R&S, Security, and SP
Managing Partner / Sr. Instructor - IPexpert, Inc.
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From: [email protected]
[mailto:[email protected]] On Behalf Of Bruno Alves Barata
Sent: Sunday, October 10, 2010 10:53 AM
To: [email protected]
Subject: [OSL | CCIE_SP] Traffic Engineering interarea ISIS
Hi guys,
I need to create one MPLS TE tunnel between two ISIS areas (i.e. 49.0001 and
49.0002). I know how create between levels, but across area bondaries I
never saw.
Is it possible?
rgds,
Barata
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