Re: [Idr] AD Review of draft-ietf-idr-tunnel-encaps-15

Gyan Mishra <hayabusagsm@gmail.com> Fri, 08 May 2020 16:34 UTC

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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Fri, 8 May 2020 12:34:44 -0400
Message-ID: <CABNhwV0niNMTAO9eymX4NhBFTUUhcb=TdNm1iSU2-s9iLrMAiw@mail.gmail.com>
To: John E Drake <jdrake@juniper.net>
Cc: John Scudder <jgs=40juniper.net@dmarc.ietf.org>, Keyur Patel <keyur@arrcus.com>, "draft-ietf-idr-tunnel-encaps@ietf.org" <draft-ietf-idr-tunnel-encaps@ietf.org>, "idr-chairs@ietf.org" <idr-chairs@ietf.org>, "idr@ietf. org" <idr@ietf.org>
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Subject: Re: [Idr] AD Review of draft-ietf-idr-tunnel-encaps-15
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That section speaks clearly to the backwards compatibility to use the
existing encapsulation extended community instead of the new SAFI tunnel
attribute.

Perfect.

Gyan

On Fri, May 8, 2020 at 11:20 AM John E Drake <jdrake@juniper.net> wrote:

> Gyan,
>
>
>
> RFC 8365 uses the Encapsulation extended community rather than the
> attribute, and the extended community was included in the subject draft.
> Please see:
> https://datatracker.ietf.org/doc/html/draft-ietf-idr-tunnel-encaps-15#section-4.1
> .
>
>
>
> Yours Irrespectively,
>
>
>
> John
>
>
>
>
>
> Juniper Business Use Only
>
> *From:* Idr <idr-bounces@ietf.org> *On Behalf Of * Gyan Mishra
> *Sent:* Friday, May 8, 2020 3:48 AM
> *To:* John Scudder <jgs=40juniper.net@dmarc.ietf.org>rg>; Keyur Patel <
> keyur@arrcus.com>
> *Cc:* idr-chairs@ietf.org; idr@ietf. org <idr@ietf.org>rg>;
> draft-ietf-idr-tunnel-encaps@ietf.org
> *Subject:* Re: [Idr] AD Review of draft-ietf-idr-tunnel-encaps-15
>
>
>
> *[External Email. Be cautious of content]*
>
>
>
>
>
> Hi Keyur and other others of this draft.
>
>
>
> For vxlan evpn NVO3 RFC 8365 describes the vxlan BGP EVPN overlay
> architecture and the various encapsulation types below that exist today and
> have been implemented now by most vendors.
>
>
>
> https://tools.ietf.org/html/rfc8365
> <https://urldefense.com/v3/__https:/tools.ietf.org/html/rfc8365__;!!NEt6yMaO-gk!UooxTZahHMICVYaZqcK72zbOvJNgXz33ZkC1mYjMqeTLuX7IcixCgnvBeqHrO0Q$>
>
>
>
> Value    Name
>
>    -----    ------------------------
>
>    8        VXLAN Encapsulation
>
>    9        NVGRE Encapsulation
>
>    10       MPLS Encapsulation
>
>    11       MPLS in GRE Encapsulation
>
>    12       VXLAN GPE Encapsulation
>
>
>
> So RFC 8365  has been implemented and it works without this drafts tunnel
> encapsulation attribute new SAFI defined.
>
>
>
> So would this draft once it gets WG adoption update RFC 8365 and any other
> encapsulation types that work today without this encapsulation attribute.
> Would that require vendor to update their code to now support this SAFI.
>
>
>
> Since RFC 8365 NVO3 vxlan evpn works well today without this tunnel
> attributes, please specify what is gained by having vendors update their
> code to support this new tunnel attribute.
>
>
>
> Please help shed some light on this topic.
>
>
>
> Kind regards
>
>
>
> Gyan
>
> Verizon
>
>
>
> On Thu, May 7, 2020 at 2:51 PM John Scudder <jgs=
> 40juniper.net@dmarc.ietf.org> wrote:
>
> Hi Alvaro,
>
>
>
> On Feb 21, 2020, at 7:47 AM, Alvaro Retana <aretana.ietf@gmail.com> wrote:
>
>
>
> [minor] "topmost" and "bottommost" are not mentioned in rfc3032.
> Please be consistent with the terminology.  It is ok to introduce new
> terminology, if needed, but please explain that as well.
>
>
>
> RFC 3032 is careful in defining what “top” and “bottom” mean for labels of
> course. Don’t you think the meanings of “topmost” and “bottommost” are
> obvious in that context?
>
>
>
> —John
>
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>
> --
>
> Gyan  Mishra
>
> Network Engineering & Technology
>
> Verizon
>
> Silver Spring, MD 20904
>
> Phone: 301 502-1347
>
> Email: gyan.s.mishra@verizon.com
>
>
>
>
>
-- 

Gyan  Mishra

Network Engineering & Technology

Verizon

Silver Spring, MD 20904

Phone: 301 502-1347

Email: gyan.s.mishra@verizon.com