Re: [tsvwg] New Version Notification for draft-herbert-udp-space-hdr-01.txt

Tom Herbert <tom@herbertland.com> Thu, 11 July 2019 03:56 UTC

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From: Tom Herbert <tom@herbertland.com>
Date: Wed, 10 Jul 2019 20:56:01 -0700
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To: Joe Touch <touch@strayalpha.com>
Cc: Tom Herbert <tom@quantonium.net>, tsvwg <tsvwg@ietf.org>
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Subject: Re: [tsvwg] New Version Notification for draft-herbert-udp-space-hdr-01.txt
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On Wed, Jul 10, 2019, 8:20 PM Joe Touch <touch@strayalpha.com> wrote:

>
>
> On Jul 10, 2019, at 6:29 PM, Tom Herbert <tom@quantonium.net> wrote:
>
> nd you can require it if this keeps you up at night. The rest of us don’t
>> need to be stuck with it forever.
>>
>
> Yes, that's why checksum is in the fixed header. The benefits far outweigh
> the cost.
>
>
> The cost is a lack of flexibility for 1 byte.
>
> So it took the better part of a day and quite a few emails to conclude
> that the only remaining issue in this proposal is one that we’ve already
> discussed at length.
>

Hardly the only remaining issue if you're referring to UDP options. Please
look at minutes from last IETF. Both the subject of disambiguation of
surplus space as well as negotiation of UDP options was raised (i.e. if the
receiver requires checksum how does sender know that). I haven't seen these
addressed by UDP options draft at least...


> Joe
>
>
>
>