[Detnet] Paul Wouters' No Objection on draft-ietf-detnet-bounded-latency-09: (with COMMENT)
Paul Wouters via Datatracker <noreply@ietf.org> Thu, 07 April 2022 12:31 UTC
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Date: Thu, 07 Apr 2022 05:31:10 -0700
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Subject: [Detnet] Paul Wouters' No Objection on draft-ietf-detnet-bounded-latency-09: (with COMMENT)
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Paul Wouters has entered the following ballot position for draft-ietf-detnet-bounded-latency-09: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/about/groups/iesg/statements/handling-ballot-positions/ for more information about how to handle DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-detnet-bounded-latency/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- Well written document. I have some comments that can be answered or ignored as the authors see fit. If an already-established DetNet flow would be pushed beyond its latency requirements by the new DetNet flow, then the new DetNet flow can be refused, or some other suitable action taken. This seems like a great power and should come with great responsibility. If being a member of a DetNet is voluntary, that seems fine. But if such membership is forced on the enduser, the concerns of RFC 8890 come into play. [BennettDelay] This seems to be a broken reference in section 4.2.2 As illustrated by numerous implementation examples, some of the "Layer 3" mechanisms described in documents such as [RFC7806] are often integrated, in an implementation, with the "Layer 2" mechanisms also implemented in the same node. But shepherds write up said: While there seems to be interest in this specification from multiple vendors, there are no publicly known implementations of this specification. Which leaves me wondering what "implementation examples" refers to. The security considerations mostly (and rightly so) point to RFC 9055 and RFC 8655. Although those seem to mostly focus on attacks against DetNet and there is no mention of abuse by the DetNet. For example, if a mobile phone is considered to be within a DetNet, the enduser has no real choice but to be part of this. If a common service like a speedtest service the user can run to evaluate their internet connection is also within or linked to a DetNet, it can present the user a very false sense of low latency and network speed by simply reserving an excessive amount of network between the endusers and the speedtest service. This leads to a more generic concern of DetNet placing us in the "user vs network" debate on who should have a say in how packets flow, which is clearly not a problem this document needs or can address.
- [Detnet] Paul Wouters' No Objection on draft-ietf… Paul Wouters via Datatracker
- Re: [Detnet] Paul Wouters' No Objection on draft-… Mohammadpour Ehsan