The MPLS-OPS Archive

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

Hi,

Comments in line,

At 07:55 PM 8/26/2004 +0530, Aditya Kaul wrote:
> None so far !!!

There are ! Sorry, I cannot provide names to preserve
confidentiality.

see below

At 02:50 PM 8/26/2004, jerome.law@bt.com wrote:

I think this works out fine in theory but how many providers out there do you know that have done this?

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

From: Aditya Kaul [mailto:aditya.kaul@HotPOP.com]

Sent: 25 August 2004 16:37

To: Ahmad Suzaili Shaari; mpls-ops

Subject: Re: [MPLS-OPS]: MPLS TE in Single Area

Right now on cisco you have to specify loosely routed ERO for each ABR.

On juniper,I dont think you can configure Inter-Area TE LSP.

Hope Cisco/Juniper guys can comment if the above is incorrect.

Rgds

Aditya

draft-ietf-tewg-interarea-mpls-te-req-02.txt

This draft indeed list the
requirments

draft-vasseur-mpls-loose-path-reopt-01.txt

Specifies a mechanism to

        

- poll
some downstream node to discover potentially more optimal path

        

- send a
notification of the head-end LSR of the existence of a more optimal
path

The draft has been
implemented.

draft-kompella-mpls-multiarea-te-03.txt

Pretty old draft. See:
ftp://ftp.isi.edu/internet-drafts/draft-ayyangar-ccamp-inter-domain-rsvp-te-00.txt
(signalling aspect)
ftp://ftp.isi.edu/internet-drafts/draft-vasseur-ccamp-inter-domain-path-comp-00.txt (routing aspect)

Moreover, the protection of ABR (and ASBR for Inter-AS TE) with MPLS TE Fast Reroute requires http://www.ietf.org/internet-drafts/draft-ietf-mpls-nodeid-subobject-02.txt.

Let me know if you have any other questions.

JP.

http://www.cisco.com/en/US/tech/tk436/tk832/tech_brief09186a00801f0b2d.html

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st19/inter_ar.htm

At 07:59 PM 8/25/2004, Ahmad Suzaili Shaari wrote:

Thank you for your replies and comments.

 

A follow-up to that question is about MPLS TE in a single area. I've read in a few articles that the MPLS Traffic Engineering can only be configured within a single area. If that is the case then what happen if a network is segmented into multiple areas, how do you do MPLS TE across multiple areas.

 

Thank you.

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