Re: [Int-area] Alissa Cooper's No Objection on draft-ietf-intarea-frag-fragile-16: (with COMMENT)

"Templin (US), Fred L" <Fred.L.Templin@boeing.com> Tue, 03 September 2019 14:33 UTC

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From: "Templin (US), Fred L" <Fred.L.Templin@boeing.com>
To: Joe Touch <touch@strayalpha.com>, Alissa Cooper <alissa@cooperw.in>
CC: Joel Halpern <joel.halpern@ericsson.com>, "draft-ietf-intarea-frag-fragile@ietf.org" <draft-ietf-intarea-frag-fragile@ietf.org>, "int-area@ietf.org" <int-area@ietf.org>, The IESG <iesg@ietf.org>, "intarea-chairs@ietf.org" <intarea-chairs@ietf.org>
Thread-Topic: [Int-area] Alissa Cooper's No Objection on draft-ietf-intarea-frag-fragile-16: (with COMMENT)
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Date: Tue, 3 Sep 2019 14:33:33 +0000
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Subject: Re: [Int-area] Alissa Cooper's No Objection on draft-ietf-intarea-frag-fragile-16: (with COMMENT)
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Why was this section taken out:
 
> 1.1.  IP-in-IP Tunnels 
>     
>    This document acknowledges that in some cases, packets must be     
>    fragmented within IP-in-IP tunnels [I-D.ietf-intarea-tunnels].     
>    Therefore, this document makes no additional recommendations     
>    regarding IP-in-IP tunnels.

Tunnels always inflate the size of packets to the point that they may exceed
the path MTU even if the original packet is no larger than the path MTU. And,
for IPv6 the only guarantee is 1280. Therefore, in order to robustly support
the minimum IPv6 MTU tunnels MUST employ fragmentation.

Please put this section of text back in the document where it belongs.

Thanks - Fred

> -----Original Message-----
> From: Int-area [mailto:int-area-bounces@ietf.org] On Behalf Of Joe Touch
> Sent: Tuesday, September 03, 2019 7:06 AM
> To: Alissa Cooper <alissa@cooperw.in>
> Cc: Joel Halpern <joel.halpern@ericsson.com>om>; draft-ietf-intarea-frag-fragile@ietf.org; int-area@ietf.org; The IESG <iesg@ietf.org>rg>;
> intarea-chairs@ietf.org
> Subject: Re: [Int-area] Alissa Cooper's No Objection on draft-ietf-intarea-frag-fragile-16: (with COMMENT)
> 
> Hi, all,
> 
> So let me see if I understand:
> 
> Alissa issues a comment.
> 
> We discuss this on the list and come to a rare consensus on a way forward.
> 
> The new draft is issued that:
> 
> a) ignores the list consensus
> b) removes a paragraph not under the DISCUSS (1.1)
> c) now refers to vague “other documents” without citation
> d) most importantly:
> 
> 	REMOVES a key recommendation that we MAY use frag where it works
> 
> 	Asserts the false claim that IP fragmentation “will fail” in the Internet,
> 	despite citing evidence that the *majority of the time* it does work
> 		e.g., for IPv6, sec 3.9
> 
> What happened? Why is a change this substantial not reflecting the *list consensus*?
> 
> Joe
> 
> > On Sep 3, 2019, at 5:59 AM, Alissa Cooper via Datatracker <noreply@ietf.org> wrote:
> >
> > Alissa Cooper has entered the following ballot position for
> > draft-ietf-intarea-frag-fragile-16: No Objection
> >
> > When responding, please keep the subject line intact and reply to all
> > email addresses included in the To and CC lines. (Feel free to cut this
> > introductory paragraph, however.)
> >
> >
> > Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
> > for more information about IESG DISCUSS and COMMENT positions.
> >
> >
> > The document, along with other ballot positions, can be found here:
> > https://datatracker.ietf.org/doc/draft-ietf-intarea-frag-fragile/
> >
> >
> >
> > ----------------------------------------------------------------------
> > COMMENT:
> > ----------------------------------------------------------------------
> >
> > Thanks for addressing my DISCUSS.
> >
> >
> > _______________________________________________
> > Int-area mailing list
> > Int-area@ietf.org
> > https://www.ietf.org/mailman/listinfo/int-area
> 
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