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Re: [tsvwg] Advance notice on request to poll TSVWG for adoption of draft-kaippallimalil-tsvwg-media-hdr-wireless-03

"touch@strayalpha.com" <touch@strayalpha.com> Thu, 02 November 2023 06:03 UTC

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From: "touch@strayalpha.com" <touch@strayalpha.com>
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Date: Wed, 01 Nov 2023 23:02:50 -0700
Cc: Sebastian Moeller <moeller0@gmx.de>, "C. M. Heard" <heard@pobox.com>, TSVWG <tsvwg@ietf.org>
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To: Alex Burr <alex.burr@ealdwulf.org.uk>
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Subject: Re: [tsvwg] Advance notice on request to poll TSVWG for adoption of draft-kaippallimalil-tsvwg-media-hdr-wireless-03
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See below…

> On Oct 30, 2023, at 7:28 AM, Alex Burr <alex.burr@ealdwulf.org.uk> wrote:
> ...
> [AB] My theory as to why this would be an incentive: as I understand it currently
> UDP options would need to be processed via more-expensive fully programmable kit.
> Whereas 'configurable' kit, or kit that can only process only the first N bytes of a packet
> is likely to be cheaper and/or more scalable. At the scale of a network operator, cost
> is always a factor. So, once they have got it working with expensive kit, they will
> want to get it working with cheaper kit, which means enabling HBH options.

People who won’t do something the cheaper way rarely consider a more expensive alternative to be more viable.

I agree with what others have said - put the pain where the benefit is. Operators have to be the ones to allow HBH option processing - so they can have the benefit.

...
> This may well be the best route to getting HBH options enabled. However, if it turns out that the 
> consensus is that UDP options need to be used to enable faster deployment, then encapsulating HBH 
> options seems preferable to just diverging.

If you’re going to encapsulate, you have plenty of places to put information. But you’ve also moved all the work into the encapsulator/decapsulator - is that where the benefit will be?

Again, put the pain where the benefit is - or the result will be a solution with no incentive for deployment.

Joe

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