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Re: [Detnet] Resolving the remaining Use Cases Draft Comments - Cellular Radio and Industrial M2M

"Grossman, Ethan A." <eagros@dolby.com> Tue, 18 December 2018 19:31 UTC

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From: "Grossman, Ethan A." <eagros@dolby.com>
To: János Farkas <janos.farkas@ericsson.com>
CC: "jouni@gmail.com" <jouni@gmail.com>, "Maik Seewald (maseewal)" <maseewal@cisco.com>, Balázs Varga A <balazs.a.varga@ericsson.com>, "detnet@ietf.org" <detnet@ietf.org>, Suresh Krishnan <suresh.krishnan@gmail.com>
Thread-Topic: Resolving the remaining Use Cases Draft Comments - Cellular Radio and Industrial M2M
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Archived-At: <https://mailarchive.ietf.org/arch/msg/detnet/ONpoo6UZJuhKN2aIo0Oj9-spQWc>
Subject: Re: [Detnet] Resolving the remaining Use Cases Draft Comments - Cellular Radio and Industrial M2M
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Thanks Janos,
Doesn't 0.1-1% sound like an awful lot of packet loss?
Do I understand correctly that you mean:
"Low packet loss (0.1-1 % of packets can be lost, but only a bounded number of consecutive packets can be lost)"

I guess I still don't exactly understand the intent, can you please clarify?
Thanks, and sorry for being dense here.
Ethan.

From: János Farkas <janos.farkas@ericsson.com>
Sent: Tuesday, December 18, 2018 8:21 AM
To: Grossman, Ethan A. <eagros@dolby.com>
Cc: jouni@gmail.com; Maik Seewald (maseewal) <maseewal@cisco.com>; Balázs Varga A <balazs.a.varga@ericsson.com>; detnet@ietf.org; Suresh Krishnan <suresh.krishnan@gmail.com>
Subject: Re: Resolving the remaining Use Cases Draft Comments - Cellular Radio and Industrial M2M

Hi Ethan,

Maybe it is not a god phrase, but the intention with the phrase that the loss should be burstless was that consecutive packets should not be lost.
Perhaps the maximum consecutive loss tolerance parameter describes it better in https://tools.ietf.org/html/draft-ietf-detnet-flow-information-model-02<https://urldefense.proofpoint.com/v2/url?u=https-3A__tools.ietf.org_html_draft-2Dietf-2Ddetnet-2Dflow-2Dinformation-2Dmodel-2D02&d=DwMD-g&c=lI8Zb6TzM3d1tX4iEu7bpg&r=ZcHC6wX_gDwPDcfMaFNZiQ&m=0W0EQyafQ7HdKxGYDUDOn91m44yUJHQre2QdC0Pq5rI&s=xtlwetwJuYWGjTBmpNfLC8CvvhDk4x1YkRjNDTE0rws&e=>. It is the "maximum    number of consecutive packets whose loss can be tolerated"

Maybe updating the bullet in the use cases draft to:

"Low packet loss (0.1-1 %, limited number of consecutive packets)"

?

Regards,
Janos
On 12/16/2018 6:03 AM, Grossman, Ethan A. wrote:
Balazs, Janos:
* Section 7.4

What does burstless mean (especially in the context of low packet loss)?

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