The MPLS-OPS Archive

[Jean Philippe Vasseur <jvasseur@cisco.com>]

Hi,

In short, today you can configure an inter-area TE LSP by specifying a
set of loose hops (ABRs) and the path with each area will be
automatically computed by each node whose next hop is signalled as a
loose hop. In an IOS release coming soon, we will add:
- the ability to discover a more optimal in the non-head end are and
perform an end to end reoptimization if required/desired (see
draft-vasseur-ccamp-loose-path-reopt)
- the support of FRR for the ABR (implementation of the node-id
sub-object)

- ....
More sophisticated method to compute optimal end to end path across areas
are currently being worked on.

JP.

At 05:17 AM 3/18/2004 -0500, shehzad.hassan@bell.ca wrote:

"urn:schemas-microsoft-com:office:office">
I believe it is possible now with a few limitations, and frankly speaking except for a couple of caveats (stated below) there's not much to it in terms of configurations,
* You need to define an explicit-route for your LSP which traverses multiple OSPF areas,
* Autoroute and Forwarding Adjacency feature in some IOS versions is still a question mark to my knowledge
* Hops outside the area where LSP originates need to be defined as 'Loose'
* Tunnel re-optimization and Affinity Info is another unknown to me across areas
* FRR Node protection also has some limitations which to my knowledge are being worked on.
 
SH

-----Original Message-----

From: Kumar S [mailto:ps2kumar@yahoo.com]

Sent: March 18, 2004 2:08 AM

To: kartik; mpls-ops@mplsrc.com

Subject: Re: [MPLS-OPS]: Te Tunnels in multi area OSPF n/w

HI Karthik,

It is possible. I guess Cisco is working on it. But I'm not sure how?

 

Regards,

Shailender

kartik <kartik.kashyap@estelcom.com> wrote:

Dear All

 

Is it possible to make  inter area MPLS TE  tunnels in a multi area OSPF network. If yes what need additional need to be done.

 

Regards

Kartik

 

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