Re: [Idr] Robert Wilton's Discuss on draft-ietf-idr-eag-distribution-16: (with DISCUSS)

"Rob Wilton (rwilton)" <rwilton@cisco.com> Wed, 19 May 2021 09:40 UTC

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From: "Rob Wilton (rwilton)" <rwilton@cisco.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>, Alvaro Retana <aretana.ietf@gmail.com>, Qin Wu <bill.wu@huawei.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-idr-eag-distribution@ietf.org" <draft-ietf-idr-eag-distribution@ietf.org>, "idr-chairs@ietf.org" <idr-chairs@ietf.org>, Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: Robert Wilton's Discuss on draft-ietf-idr-eag-distribution-16: (with DISCUSS)
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Subject: Re: [Idr] Robert Wilton's Discuss on draft-ietf-idr-eag-distribution-16: (with DISCUSS)
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Hi Jeff,

Yes.  Thank you.

I’ve cleared my discuss.

Regards.
Rob


From: Jeff Tantsura <jefftant.ietf@gmail.com>
Sent: 19 May 2021 04:43
To: Alvaro Retana <aretana.ietf@gmail.com>; Qin Wu <bill.wu@huawei.com>; The IESG <iesg@ietf.org>; Rob Wilton (rwilton) <rwilton@cisco.com>
Cc: draft-ietf-idr-eag-distribution@ietf.org; idr-chairs@ietf.org; Susan Hares <shares@ndzh.com>; idr@ietf.org
Subject: RE: Robert Wilton's Discuss on draft-ietf-idr-eag-distribution-16: (with DISCUSS)

Hi Rob,

Thanks for your review!

It is specifically out of scoop of what BGP-LS consumer does with the data.
I’ll go ahead and update the text (both sentences) would that work for you?


Thanks!

Cheers,
Jeff
On May 18, 2021, 10:03 AM -0500, Rob Wilton (rwilton) <rwilton@cisco.com<mailto:rwilton@cisco.com>>, wrote:

Hi Alvaro, Qin,

Please see inline.


-----Original Message-----
From: Alvaro Retana <aretana.ietf@gmail.com<mailto:aretana.ietf@gmail.com>>
Sent: 18 May 2021 15:51
To: Qin Wu <bill.wu@huawei.com<mailto:bill.wu@huawei.com>>; The IESG <iesg@ietf.org<mailto:iesg@ietf.org>>; Rob Wilton
(rwilton) <rwilton@cisco.com<mailto:rwilton@cisco.com>>
Cc: draft-ietf-idr-eag-distribution@ietf.org<mailto:draft-ietf-idr-eag-distribution@ietf.org>; idr-chairs@ietf.org<mailto:idr-chairs@ietf.org>; Susan
Hares <shares@ndzh.com<mailto:shares@ndzh.com>>; idr@ietf.org<mailto:idr@ietf.org>
Subject: RE: Robert Wilton's Discuss on draft-ietf-idr-eag-distribution-
16: (with DISCUSS)

On May 18, 2021 at 10:29:24 AM, Rob Wilton wrote:


Rob:

Hi!

Joining the threads...


...

Alternatively, having read the referenced text, having a sentence in the
introduction that states that the BGP-LS EAP attribute is handled
entirely

independently of the AG attribute would be sufficient. I.e., the text in
the

introduction makes this seem like this is a replacement for, and in some
way

related to, the EA attribute.

Here's a suggestion...from the Introduction:

OLD>
   These administrative groups are defined as a fixed-length 32-bit
   bitmask.  As networks grew and more use-cases were introduced, the
   32-bit length was found to be constraining and hence extended
   administrative groups (EAG) were introduced in [RFC7308].

   This document specifies an extension to BGP-LS for advertisement of
   the extended administrative groups.

NEW (append, or add as a new paragraph)>
   The EAG TLV (Section 2) is not a replacement for the Administrative
   Group (color) TLV; as explained in [RFC7308] both values can coexist.
   It is out of scope for this document to specify the behavior of the
   BGP-LS consumer [RFC7752].
[RW]



Would that work?
[RW]
Broadly, yes. The first extra sentence would be sufficient to clear my initial confusion when I was reading this document.

I don’t mind if you want to keep the second sentence, but it is a bit unclear to me as to what behaviour is out of scope.

Thanks,
Rob




Thanks!

Alvaro.