Re: [Detnet] Murray Kucherawy's No Objection on draft-ietf-detnet-mpls-over-tsn-06: (with COMMENT)

Balázs Varga A <balazs.a.varga@ericsson.com> Thu, 18 February 2021 10:36 UTC

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To: Murray Kucherawy <superuser@gmail.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-detnet-mpls-over-tsn@ietf.org" <draft-ietf-detnet-mpls-over-tsn@ietf.org>, "detnet-chairs@ietf.org" <detnet-chairs@ietf.org>, "detnet@ietf.org" <detnet@ietf.org>, Lou Berger <lberger@labn.net>
Thread-Topic: Murray Kucherawy's No Objection on draft-ietf-detnet-mpls-over-tsn-06: (with COMMENT)
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Date: Thu, 18 Feb 2021 10:36:38 +0000
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Subject: Re: [Detnet] Murray Kucherawy's No Objection on draft-ietf-detnet-mpls-over-tsn-06: (with COMMENT)
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Hi Murray,

Many thanks for your review. Proposed fixing inline.

Thanks
Bala'zs

-----Original Message-----
From: Murray Kucherawy via Datatracker <noreply@ietf.org> 
Sent: Thursday, February 18, 2021 7:13 AM
To: The IESG <iesg@ietf.org>
Cc: draft-ietf-detnet-mpls-over-tsn@ietf.org; detnet-chairs@ietf.org; detnet@ietf.org; Lou Berger <lberger@labn.net>
Subject: Murray Kucherawy's No Objection on draft-ietf-detnet-mpls-over-tsn-06: (with COMMENT)

Murray Kucherawy has entered the following ballot position for
draft-ietf-detnet-mpls-over-tsn-06: No Objection

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The document, along with other ballot positions, can be found here:
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

This document is "MPLS over IEEE 802.1 Time-Sensitive Networking".  Also on this telechat: "IEEE 802.1 Time Sensitive Networking over MPLS".  I wonder if one is just the inverse of the other.

I concur with Alvaro's statement about the IEEE references being normative.

<Bala'zs> OK.

In Section 2.2, "CW" is defined, but the term used in the document is actually "d-CW".  The terms "DF", "LSR", "PE", "S-PE", and "T-PE" are defined but not used anywhere.

<Bala'zs> Thanks I will fix these.

In Section 4, I can't parse this sentence: "All these functions have to identify flows those require TSN treatment (i.e., applying TSN functions during forwarding)."

<Bala'zs> "These functions" means the TSN functionalities defined in IEEE 802.1. TSN functionalities have to be able to select which frames belong to TSN Streams.

Section 6 says: "Therefore, it is important that the interface between DetNet nodes and TSN sub-network are subject to authorization, authentication, and encryption."  Would references to documents describing those specific TSN capabilities be useful here?  I'm not sure if those are covered by the referenced TSN documents.

<Bala'zs> OK. There are no extra security functionalities defined for TSN Streams. TSN leverages the traffic control and security standards specified by IEEE 802.1. Please see https://1.ieee802.org/security/ for further details.