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Re: [Detnet] Secdir last call review of draft-ietf-detnet-mpls-over-udp-ip-06

"Grossman, Ethan A." <eagros@dolby.com> Thu, 01 October 2020 17:43 UTC

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From: "Grossman, Ethan A." <eagros@dolby.com>
To: Stewart Bryant <stewart.bryant@gmail.com>
CC: Stephen Farrell <stephen.farrell@cs.tcd.ie>, "secdir@ietf.org" <secdir@ietf.org>, "last-call@ietf.org" <last-call@ietf.org>, "detnet@ietf.org" <detnet@ietf.org>, "draft-ietf-detnet-mpls-over-udp-ip.all@ietf.org" <draft-ietf-detnet-mpls-over-udp-ip.all@ietf.org>
Thread-Topic: [Detnet] Secdir last call review of draft-ietf-detnet-mpls-over-udp-ip-06
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Date: Thu, 01 Oct 2020 17:43:54 +0000
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Subject: Re: [Detnet] Secdir last call review of draft-ietf-detnet-mpls-over-udp-ip-06
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Yeah the thought occurred to me "why would we mention anything above IP at all?" I checked the Security draft and there is actually no relevant mention of TCP or UDP. So I think this is a no-op as far as the Security draft is concerned. Of course I could be missing something, so please correct me if necessary, but that's my current understanding. 
Ethan.

-----Original Message-----
From: Stewart Bryant <stewart.bryant@gmail.com> 
Sent: Thursday, October 1, 2020 8:12 AM
To: Grossman, Ethan A. <eagros@dolby.com>
Cc: Stewart Bryant <stewart.bryant@gmail.com>; Stephen Farrell <stephen.farrell@cs.tcd.ie>; secdir@ietf.org; last-call@ietf.org; detnet@ietf.org; draft-ietf-detnet-mpls-over-udp-ip.all@ietf.org
Subject: Re: [Detnet] Secdir last call review of draft-ietf-detnet-mpls-over-udp-ip-06



> On 24 Sep 2020, at 21:28, Grossman, Ethan A. <eagros@dolby.com> wrote:
> 
> Thanks Stephen. FWIW it isn't too late to add some text to the DetNet Security draft regarding DetNet over UDP, if someone can think up something useful to say. I suppose one could simply mention UDP in the same breath as TCP (implying that the same general security guidelines apply, if that's our stance). 
> Any thoughts (from anyone)? 

Ethan

I would be rather surprised if anyone tried to run a deterministic application over TCP.

TCP would undo all the temporal determinism and or course it looks after packet loss.

- Stewart

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