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Re: [Tsv-art] [Last-Call] Tsvart last call review of draft-ietf-idr-tunnel-encaps-19

Joseph Touch <touch@strayalpha.com> Mon, 09 November 2020 21:52 UTC

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From: Joseph Touch <touch@strayalpha.com>
In-Reply-To: <007f01d6b6df$09da44f0$1d8eced0$@ndzh.com>
Date: Mon, 09 Nov 2020 13:51:55 -0800
Cc: Brian Trammell <ietf@trammell.ch>, tsv-art <tsv-art@ietf.org>, idr@ietf.org, draft-ietf-idr-tunnel-encaps.all@ietf.org, Last Call <last-call@ietf.org>
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To: Susan Hares <shares@ndzh.com>
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Subject: Re: [Tsv-art] [Last-Call] Tsvart last call review of draft-ietf-idr-tunnel-encaps-19
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Hi, Sue,

I have a couple of other drafts currently being wrapped up (UDP options, TCP control block sharing bis). The tunnels is next on my list and I hope to finalize a version that we can consider for WGLC by the end of the year.

That doc (even the latest expired version) has the text we’ve recommended elsewhere, e.g., in the TCP core (793) and elsewhere. 

Joe

> On Nov 9, 2020, at 1:26 PM, Susan Hares <shares@ndzh.com> wrote:
> 
> Joe and Brian: 
>  
> As the replacement shepherd for draft-ietf-idr-tunnel-encaps-19.txt,  I am looking for the INT area statement on tunnels and MTU in tunnels. 
>  
> Your intarea draft seems to have expired without any replacement. 
>  
> Where is the latest set of comments on tunnels and MTU issue from INT area? 
>  
> Sue 
>  
> From: Joseph Touch [mailto:touch@strayalpha.com <mailto:touch@strayalpha.com>] 
> Sent: Thursday, October 15, 2020 9:12 PM
> To: Brian Trammell
> Cc: tsv-art; Last Call; draft-ietf-idr-tunnel-encaps.all@ietf.org <mailto:draft-ietf-idr-tunnel-encaps.all@ietf.org>; idr@ietf.org <mailto:idr@ietf.org>
> Subject: Re: [Last-Call] Tsvart last call review of draft-ietf-idr-tunnel-encaps-19
>  
>  
> 
> 
> On Sep 28, 2020, at 11:32 PM, Brian Trammell via Datatracker <noreply@ietf.org <mailto:noreply@ietf.org>> wrote:
>  
> First and foremost, I was surprised to find no reference to tunnel or MTU 
> anywhere in the document, especially given the guidance in section 6 to
> stack tunnels. MTU issues are operationally difficulty in single-tunnel
> environments and become more likely to cause problems in multiple-tunnel
> environments. 
>  
> +1
>  
> This is discussed in detail, with some much more specific terminology, in draft-ietf-intarea-tunnels
>  
> In particular, *path MTU* is different from the received MTU, etc. It’s important to get this correct (note the many examples of current standards that do not).
>  
> Joe
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