Re: Inter Area MPLS TE with OSPF

From: John Neiberger <jneiberger_at_gmail.com>
Date: Sat, 29 Dec 2012 15:44:35 -0700

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 route
3. 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 active
5. 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 Sat Dec 29 2012 - 15:44:35 ART

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