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Re: [mpls] Fast Reroute for Node Protection in LDP-based LSPs

"Stefano Previdi (sprevidi)" <sprevidi@cisco.com> Wed, 07 December 2016 09:30 UTC

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From: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>
To: Santosh Esale <sesale@juniper.net>
Thread-Topic: Fast Reroute for Node Protection in LDP-based LSPs
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Date: Wed, 07 Dec 2016 09:30:21 +0000
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References: <D46B0792.DB8E0%sesale@juniper.net> <03cfb8de-649d-9f26-01f1-a5f1a8181e9b@gredler.at> <D46C7FC2.DBBA3%sesale@juniper.net>
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Cc: Hannes Gredler <hannes@gredler.at>, "mpls@ietf.org" <mpls@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Subject: Re: [mpls] Fast Reroute for Node Protection in LDP-based LSPs
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> On Dec 6, 2016, at 11:55 PM, Santosh Esale <sesale@juniper.net> wrote:
> 
> Hi Hannes,
>          Good point! We will generalize the solution to cover
> segment-routing (SR) too in the next - 05 revision.


I don’t think your solution brings anything better than what already covered in ti-lfa draft for segment-routing. See draft-francois-rtgwg-segment-routing-ti-lfa-02.

s.


> 
> Thanks,
> Santosh
> 
> On 12/6/16, 3:17 AM, "Hannes Gredler" <hannes@gredler.at> wrote:
> 
>> hi santosh,
>> 
>> just curious why the proposed solution is constrained to only use LDP ?
>> 
>> IMO what you have suggested here would just fit nicely for protecting
>> segment-routing node labels as well. segment routing node-labels are
>> "calculated" in a similar fashion than LDP labels as such my guess would
>> be that this solution applies to SR node labels as well.
>> 
>> suggest to generalize it to:
>> "Fast Reroute for Node Protection in hop-by-hop based LSPs"
>> 
>> thanks,
>> 
>> /hannes
>> 
>> 
>> On 12/5/16 20:59, Santosh Esale wrote:
>>> Hello Everyone,
>>>                           We have presented the draft
>>> - draft-esale-mpls-ldp-node-frr – in
>>> MPLS working group in three IETF meetings including the latest one at
>>> Seul. 
>>> However, as the draft is of interest to routing working too, we are
>>> initiating this 
>>> thread to solicit feedbacks from the routing working group. Please let
>>> us know
>>> your comments.
>>> 
>>> Presentations - 
>>> https://www.ietf.org/proceedings/93/slides/slides-93-mpls-3.pdf
>>> https://www.ietf.org/proceedings/94/slides/slides-94-mpls-3.pptx
>>> 
>>> https://www.ietf.org/proceedings/97/slides/slides-97-mpls-08-ti-frr-ietf-
>>> 97-00.pptx
>>> 
>>> Thanks,
>>> Santosh (on behalf of authors)
>>> 
>>> 
>>> _______________________________________________
>>> rtgwg mailing list
>>> rtgwg@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtgwg
>>> 
> 
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg

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