Re: [Lsr] LSR WG Adoption Call for "Algorithm Related IGP-Adjacency SID Advertisement"

Gyan Mishra <hayabusagsm@gmail.com> Fri, 11 June 2021 01:37 UTC

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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Thu, 10 Jun 2021 21:36:58 -0400
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To: "Dongjie (Jimmy)" <jie.dong@huawei.com>
Cc: Christian Hopps <chopps@chopps.org>, "lsr@ietf.org" <lsr@ietf.org>
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Subject: Re: [Lsr] LSR WG Adoption Call for "Algorithm Related IGP-Adjacency SID Advertisement"
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Hi Jimmy

Please see my comments in-line:

Thanks

Gyan
On Thu, Jun 10, 2021 at 4:20 AM Dongjie (Jimmy) <jie.dong@huawei.com> wrote:

> Hi Gyan,
>
>
>
> Please see some comments inline:
>
>
>
> *From:* Lsr [mailto:lsr-bounces@ietf.org] *On Behalf Of *Gyan Mishra
> *Sent:* Thursday, June 10, 2021 1:05 PM
> *To:* Christian Hopps <chopps@chopps.org>
> *Cc:* lsr@ietf.org
> *Subject:* Re: [Lsr] LSR WG Adoption Call for "Algorithm Related
> IGP-Adjacency SID Advertisement"
>
>
>
>
>
> I support WG adoption of this draft.
>
>
>
> This draft fills the gap where multiple algorithm identifiers are
> associated with a link applied to prefix sid and to add parity as now this
> draft provides Algo association with the adjacency SID as well.  At the end
> of the introduction is stated that the algorithm identifier should be
> included as part of the adjacency SID advertisement for SR-MPLS.   What
> about SRv6?
>
>
>
> Does this draft update the SR IGP extensions for
>
> SR-MPLS RFC 8665 8666 8667.
>
>
>
> Also does it update the Flex Algo draft?
>
>
>
> https://datatracker.ietf.org/doc/html/draft-ietf-lsr-flex-algo-16
>
>
>
> In section 5 operations describes how flex Algo plane can now be
> differentiated on the same  adjacency link with the Algo identifier
> adjacency sid to Algo plane can now have QOS and link resources
> characteristics defined which maybe beneficial to TEAS network slicing
> application as well as used in conjunction with a resource sid for underlay
> resource provisioning for Enhanced VPN overlay.
>
>
>
> [Jie] I see this may be related to the resource-aware SID and its usage
> for enhanced VPN. While as mentioned in several mails in this thread, the
> use cases of associating Flex-Algos with different link resources/QoS
> policy/etc. require new functionality to Flex-Algo, which needs to be
> discussed separately from this document.
>
>  Gyan> I agree as Les and others have mentioned any resources related
> functionality must first be reviewed and accepted by the WG as a separate
> document. I agree as others mentioned the main use case is for TI-LFA local
> protection of backup path so it can use other than default Algo 0.
>
> Best regards,
>
> Jie
>
>
>
> Kind Regards
>
>
>
> Gyan
>
>
>
> On Wed, May 26, 2021 at 5:00 PM Christian Hopps <chopps@chopps.org> wrote:
>
>
> Hi Folks,
>
> This begins a 2 week WG Adoption Call for the following draft:
>
>
> https://datatracker.ietf.org/doc/draft-peng-lsr-algorithm-related-adjacency-sid/
>
> Please indicate your support or objections by June 9th, 2021
>
> Authors, please respond to the list indicating whether you are aware of
> any IPR that applies to this draft.
>
> Thanks,
> Acee and Chris.
>
> _______________________________________________
> Lsr mailing list
> Lsr@ietf.org
> https://www.ietf.org/mailman/listinfo/lsr
>
> --
>
> [image: 图像已被发件人删除。] <http://www.verizon.com/>
>
> *Gyan Mishra*
>
> *Network Solutions Architect *
>
> *Email gyan.s.mishra@verizon.com <gyan.s.mishra@verizon.com>*
>
> *M 301 502-1347*
>
>
>
-- 

<http://www.verizon.com/>

*Gyan Mishra*

*Network Solutions A**rchitect *

*Email gyan.s.mishra@verizon.com <gyan.s.mishra@verizon.com>*



*M 301 502-1347*