Re: [ippm] Broadband Forums QED and its relevance to draft-olden-ippm-qoo
"Kevin Smith, Vodafone" <Kevin.Smith@vodafone.com> Mon, 27 March 2023 08:26 UTC
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From: "Kevin Smith, Vodafone" <Kevin.Smith@vodafone.com>
To: "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: Re: [ippm] Broadband Forums QED and its relevance to draft-olden-ippm-qoo
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Date: Mon, 27 Mar 2023 08:25:13 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/FQsU-Q8wJ3vVEbs3sDhyQvd9hGo>
Subject: Re: [ippm] Broadband Forums QED and its relevance to draft-olden-ippm-qoo
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We (Vodafone) have used Quality Attenuation in practice on both fixed and cellular radio networks to give a granular view of the causes of latency and loss on both uplink and downlink. Very useful in determining what you can't easily change - e.g. propagation delay as a result of cell and core siting - vs. what you can change more easily e.g. scheduler and core queuing policy). Helps with A/B comparison of network changes too. Rather than 'selling bandwidth' as networks have done for years, QA recognises that no network is perfect and instead measures the shortfall, broken up into the causes. An analogy is pro-audio equipment manufacturers that declare all the imperfections of their high-end products (Total Harmonic Distortion, Noise Floor, Frequency Response etc.) to help the recording engineer know what to expect, and plan how to account for it. QA (and especially it's interpretation as part of the Quality of Outcome draft) can help application developers know what to expect from the network, and plan how to account for it, too. All best Kevin Vodafone Networks C2 General
- [ippm] Broadband Forums QED and its relevance to … Bjørn Ivar Teigen
- Re: [ippm] Broadband Forums QED and its relevance… Kevin Smith, Vodafone