RE: Inter Area MPLS TE with OSPF

From: Mohammad Khalil <eng_mssk_at_hotmail.com>
Date: Sun, 30 Dec 2012 16:53:41 +0200

I think you summarized the process ;)

BR,

From: jneiberger_at_gmail.com
Date: Sat, 29 Dec 2012 15:44:35 -0700
Subject: Re: Inter Area MPLS TE with OSPF
To: eng_mssk_at_hotmail.com
CC: ccielab_at_groupstudy.com

Thanks, Mohammad! That's very interesting. I'm pretty new to MPLS TE and I have a question about how this configuration works. Actually, I've never seen it configured before, so I guess you could say I'm extremely new to it. lol

Based on these configs, here's how I think this works. Please correct me if I'm wrong at any point.
1. In the beginning, Tunnel0 is down; static routes pointing to the tunnel are inactive; routes are being exchanged via OSPF;

2. Once OSPF routes have been learned, the tunnel endpoint 5.5.5.5 becomes reachable, so R1 tries to bring up the tunnel using RSVP and the specified explicit route3. The RSVP request traverses the network to R5, who starts the reservation process in reverse until the LSP is set up.

4. Once the LSP is up end to end, Tunnel0 comes up, so the static route to 5.5.5.5 via Tunnel0 on R1 becomes active5. A ping from 1.1.1.1 to 5.5.5.5 now is label-switched via Tunnel0 and follows the explicit path setup via RSVP.

Is that basically how that works? I really don't know. I'm just trying to piece it together based on your configs.
Thanks again,

John

On Sat, Dec 29, 2012 at 2:47 PM, Mohammad Khalil <eng_mssk_at_hotmail.com> wrote:

http://eng-mssk.blogspot.com/2012/12/interarea-mpls-te-with-ospf.html

BR,

Mohammad

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Received on Sun Dec 30 2012 - 16:53:41 ART

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