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

Gyan Mishra <hayabusagsm@gmail.com> Fri, 08 May 2020 07:48 UTC

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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Fri, 8 May 2020 03:47:49 -0400
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To: John Scudder <jgs=40juniper.net@dmarc.ietf.org>, Keyur Patel <keyur@arrcus.com>
Cc: Alvaro Retana <aretana.ietf@gmail.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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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

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
> _______________________________________________
> Idr mailing list
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> https://www.ietf.org/mailman/listinfo/idr
>
-- 

Gyan  Mishra

Network Engineering & Technology

Verizon

Silver Spring, MD 20904

Phone: 301 502-1347

Email: gyan.s.mishra@verizon.com