Re: [OPSAWG] Mirja Kühlewind's No Objection on draft-ietf-opsawg-ipfix-bgp-community-11: (with COMMENT)

Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com> Fri, 30 November 2018 19:23 UTC

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From: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
Date: Fri, 30 Nov 2018 13:23:35 -0600
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To: Mirja Kuehlewind <ietf@kuehlewind.net>
Cc: IESG <iesg@ietf.org>, opsawg@ietf.org, Zhoutianran <zhoutianran@huawei.com>, opsawg-chairs@ietf.org, draft-ietf-opsawg-ipfix-bgp-community@ietf.org
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Subject: Re: [OPSAWG] Mirja Kühlewind's No Objection on draft-ietf-opsawg-ipfix-bgp-community-11: (with COMMENT)
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This is Mirja's comment, but ...

On Fri, Nov 30, 2018 at 10:12 AM Mirja Kühlewind <ietf@kuehlewind.net>
wrote:

> Mirja Kühlewind has entered the following ballot position for
> draft-ietf-opsawg-ipfix-bgp-community-11: No Objection
>
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> The document, along with other ballot positions, can be found here:
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>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> One comment on section 1:
> "For example, they can shift some flows
>   from congested links to low utilized links through an SDN controller
>    or PCE [RFC4655]."
> I'm not aware that ipfix information is commonly used for dynamic traffic
> adaptation and I'm not sure that is recommendable. C

I'm agreeing with Mirja here.

We've spent a LOT of time not recommending dynamic traffic adaptation.
Probably half my responsibility as AD for ALTO was repeating "you can't
react based on changes to that attribute without taking chances on
oscillation" like it was a mystical incantation, and I wasn't the first AD
to have that conversation repeatedly.

I would be happy to hear that all those problems are solved, but I haven't
heard that yet. Do the right thing, of course.

Even "can shift some flows from persistently congested links to
underutilized links" would cause me less heartburn.

Spencer

> an you maybe choose a
> different example. E.g use of IPFIX for troubleshooting or more generally
> network monitoring? Thanks!
>
>
>

[OPSAWG] Mirja Kühlewind's No Objection on draft-… Mirja Kühlewind
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Spencer Dawkins at IETF
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Stewart Bryant
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Spencer Dawkins at IETF
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Joel M. Halpern
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Dongjie (Jimmy)
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Dongjie (Jimmy)
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Stewart Bryant
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Spencer Dawkins at IETF
Re: [OPSAWG] Mirja Kühlewind's No Objection on dr… Mirja Kuehlewind (IETF)