Re: [tsvwg] UDP Options ID

Joseph Touch <touch@strayalpha.com> Fri, 10 July 2020 17:20 UTC

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From: Joseph Touch <touch@strayalpha.com>
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Date: Fri, 10 Jul 2020 10:19:59 -0700
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To: Gorry Fairhurst <gorry@erg.abdn.ac.uk>
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Subject: Re: [tsvwg] UDP Options ID
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Hi, Gorry,

I can definitely finish 1 this weekend; I’ll see what I can do to include 2 as well. This is with the caveat that I can’t present at the next meeting (I’ve been working overtime lately; while some industries are idling, my current one is running full tilt and then some).

Joe

> On Jul 9, 2020, at 5:59 AM, Gorry Fairhurst <gorry@erg.abdn.ac.uk> wrote:
> 
> Joe,
> 
> Is it possible to make a new revision of the UDP-O ID, at least to capture two points that were raised in the last petriod about:
> 
> https://tools.ietf.org/html/draft-ietf-tsvwg-udp-options-08
> 
> (1) In Section 5.1:
> 
> Following Raffaele Zullo's comment on the OCS. The text currently says:
> 
> "OCS is calculated by computing the Internet checksum over the
> surplus area."
> 
> - However, to allow this to work through NAPT and other middleboxes, this also requires the UDP Options length (i.e. IP Payload length minus UDP Length) to be included in this computation.
> 
> (2) The idea to remove the LITE option from the spec was discussed
> at IETF-106, as a major simplification to the spec. that might also
> align with initial implementation work.
> 
> Gorry
> 
> - https://tools.ietf.org/wg/tsvwg/minutes?item=minutes-106-tsvwg-04.html
>