Re: [Detnet] Benjamin Kaduk's No Objection on draft-ietf-detnet-ip-over-tsn-06: (with COMMENT)

Balázs Varga A <balazs.a.varga@ericsson.com> Thu, 18 February 2021 10:50 UTC

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To: Benjamin Kaduk <kaduk@mit.edu>, The IESG <iesg@ietf.org>
CC: "draft-ietf-detnet-ip-over-tsn@ietf.org" <draft-ietf-detnet-ip-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: Benjamin Kaduk's No Objection on draft-ietf-detnet-ip-over-tsn-06: (with COMMENT)
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Date: Thu, 18 Feb 2021 10:50:09 +0000
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Subject: Re: [Detnet] Benjamin Kaduk's No Objection on draft-ietf-detnet-ip-over-tsn-06: (with COMMENT)
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Hi Benjamin,

Many thanks for your review. See my answers inline.

Thanks
Bala'zs

-----Original Message-----
From: Benjamin Kaduk via Datatracker <noreply@ietf.org> 
Sent: Thursday, February 18, 2021 9:43 AM
To: The IESG <iesg@ietf.org>
Cc: draft-ietf-detnet-ip-over-tsn@ietf.org; detnet-chairs@ietf.org; detnet@ietf.org; Lou Berger <lberger@labn.net>et>; lberger@labn.net
Subject: Benjamin Kaduk's No Objection on draft-ietf-detnet-ip-over-tsn-06: (with COMMENT)

Benjamin Kaduk has entered the following ballot position for
draft-ietf-detnet-ip-over-tsn-06: No Objection

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Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
for more information about IESG DISCUSS and COMMENT positions.


The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/draft-ietf-detnet-ip-over-tsn/



----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Roman's comment is a good one.

Section 1

                         As described in [RFC8939] no DetNet specific
   headers are added to support DetNet IP flows, only the forwarding
   sub-layer functions are supported inside the DetNet domain.  [...]

nit: I suggest "so only the forwarding sub-layer functions can be supported inside the DetNet domain".

<Bala'zs> Thanks, I will fix this.

Section 4.2

   A TSN-aware IP (DetNet) node implementations must support the Stream

nit: singular/plural mismatch "A TSN-aware IP"/"implementations"

<Bala'zs> Thanks, I will fix this.

Section 4.4

   Implementations of this document shall use management and control
   information to map a DetNet flow to a TSN Stream.  N:1 mapping
   (aggregating DetNet flows in a single TSN Stream) shall be supported.

I note that in draft-ietf-detnet-tsn-vpn-over-mpls this was a normative "SHALL be supported" (which was itself the strongest criterion I could find for that document being standards-track).  Is there a simple description for what's different between these documents?

<Bala'zs> The major difference of these documents is the network scenario they focus on. IP-over-TSN and MPLS-over-TSN describes the scenario when DetNet nodes are interconnected by a TSN sub-network. These documents are on informational track and contains no conformance language. Whereas TSN-over-MPLS describes how TSN domains can be interconnected by a DetNet MPLS network and it is on standard track with conformance language.

Section 9.2

I agree with the other ADs that (most of?) the IEEE references should be classified as normative.

<Bala'zs> OK. This will be updated.