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[tsvwg] Re: [EXTERNAL] Re: [gwhiteCL/NQBdraft] Should traffic protection be mandatory to implement? (Issue #48)

Greg White <g.white@CableLabs.com> Thu, 25 July 2024 17:28 UTC

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From: Greg White <g.white@CableLabs.com>
To: "Black, David" <David.Black@dell.com>, "Black, David" <David.Black=40dell.com@dmarc.ietf.org>, "Livingood, Jason" <jason_livingood@comcast.com>, "Overcash, Michael (CCI-Atlanta)" <michael.overcash@cox.com>, gwhiteCL/NQBdraft <reply+AB2VULW2XRH6MPK23ABRZQOEVLRFREVBNHHI5USV5Y@reply.github.com>, gwhiteCL/NQBdraft <NQBdraft@noreply.github.com>
Thread-Topic: [tsvwg] Re: [EXTERNAL] Re: [gwhiteCL/NQBdraft] Should traffic protection be mandatory to implement? (Issue #48)
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Date: Thu, 25 Jul 2024 17:28:22 +0000
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References: <gwhiteCL/NQBdraft/issues/48@github.com> <gwhiteCL/NQBdraft/issues/48/2244060936@github.com> <MN2PR19MB404591B9BAA1AEED7BBB900983A92@MN2PR19MB4045.namprd19.prod.outlook.com> <LV2PR01MB7622B7EA53C95951987C9B0B9FA92@LV2PR01MB7622.prod.exchangelabs.com> <MN2PR19MB4045E01E9923873F4A0BBD4883AA2@MN2PR19MB4045.namprd19.prod.outlook.com> <6F90E433-3EC7-4A07-851B-8DEDE30061D7@comcast.com> <MN2PR19MB4045D937AF1494C11D8218E083AA2@MN2PR19MB4045.namprd19.prod.outlook.com> <F8D37F2E-206C-414F-A25A-24FF32C607C3@comcast.com> <MN2PR19MB40457246F85DE00DE26D8B3883AA2@MN2PR19MB4045.namprd19.prod.outlook.com> <BB46A9CC-5D74-41B2-99F9-3A2697B1E3D2@CableLabs.com> <MN2PR19MB4045A317045E7DBB364235EB83AA2@MN2PR19MB4045.namprd19.prod.outlook.com>
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Subject: [tsvwg] Re: [EXTERNAL] Re: [gwhiteCL/NQBdraft] Should traffic protection be mandatory to implement? (Issue #48)
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DB wrote:
> If NQB is effectively an alternate name for Default, then why does the draft contain extensive discussion of and strong assertions about the absence of incentives to mismark Default QB traffic as NQB?

Precisely *because* of that property. Since there is no priority elevation or reserved bandwidth, but only a shallow-buffered queue and otherwise Default treatment, there isn’t an incentive for applications that need a deep buffer to try to get anything “special” by picking the wrong codepoint.  Also, to be clear, the draft (particularly with the recent proposed changes*) talks about minimizing incentives , rather than making strong assertions about their absence.

* https://github.com/gwhiteCL/NQBdraft/issues/46#issuecomment-2246620922
* https://github.com/gwhiteCL/NQBdraft/issues/47#issuecomment-2251030531

-Greg

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