Re-,

Please see inline.

Cheers,
Med

De : Camilo Cardona <cam...@gin.ntt.net>
Envoyé : mercredi 5 février 2025 15:30
À : BOUCADAIR Mohamed INNOV/NET <mohamed.boucad...@orange.com>; 
draft-ietf-grow-bmp-path-marking-...@ietf.org
Cc : grow@ietf.org
Objet : Re: Review of draft-ietf-grow-bmp-path-marking-tlv-02

Hello Med,

Thanks for the review. We have had indeed contradictory comments, which have 
let us include a lot of what you are proposing to remove from the draft. Having 
said that, many of your edits are to the point and we will change them in the 
next version. We'll make them, and we'll probably iterate over them. Thanks a 
lot.
[Med] Thanks

As you can see, this draft depends on the TLV and TLV e-bit draft, and content 
was flowing among them. After modifying them constantly, we had decided to let 
the path marking  be stable until the other 2 are more advanced in the 
standardization process and then trim all that is left behind in the others. 
That's why you didn't see the g-bit there yet, and also why we left the 
enterprise part. I guess we can revisit that now, if you consider that the 
other will not change drastically at their stage.
[Med] What would be really great is to have the base TLV (ideally with e-bit 
merged in) and the other TLVs (including status TLV) progress as a cluster in 
the publication process.

A couple of questions;

What do you mean by removing the bitmask, you mean removing the bit definitions 
from the draft?
[Med] No, I was referring to the use of plain values. I understand that the 
current encoding choice is because you allow multiple bits to be set (and thus 
the use of 4 octets). However, it is not clear there are much combinations that 
are worth to be reported.

Also, what do you mean by bit offset in the review document?
[Med] this is to indicate the position of the bit in the bitmask

Thanks a lot,
Camilo

From: <mohamed.boucad...@orange.com<mailto:mohamed.boucad...@orange.com>>
Date: Wednesday, 5 February 2025 at 05:47
To: 
"draft-ietf-grow-bmp-path-marking-...@ietf.org<mailto:draft-ietf-grow-bmp-path-marking-...@ietf.org>"
 
<draft-ietf-grow-bmp-path-marking-...@ietf.org<mailto:draft-ietf-grow-bmp-path-marking-...@ietf.org>>
Cc: "grow@ietf.org<mailto:grow@ietf.org>" <grow@ietf.org<mailto:grow@ietf.org>>
Subject: Review of draft-ietf-grow-bmp-path-marking-tlv-02
Resent from: <alias-boun...@ietf.org<mailto:alias-boun...@ietf.org>>
Resent to: <cam...@ntt.net<mailto:cam...@ntt.net>>, 
<guyu...@huawei.com<mailto:guyu...@huawei.com>>, 
<pa...@ntt.net<mailto:pa...@ntt.net>>, 
<pierre.franc...@insa-lyon.fr<mailto:pierre.franc...@insa-lyon.fr>>, 
<thomas.g...@swisscom.com<mailto:thomas.g...@swisscom.com>>
Resent date: Wed, 5 Feb 2025 02:47:41 -0800 (PST)

Hi Camilo, Paolo, Pierre, Yunan, and Thomas,

FWIW, please find a review of this document at:


  *   pdf: 
https://github.com/boucadair/IETF-Drafts-Reviews/blob/master/2025/draft-ietf-grow-bmp-path-marking-tlv-02-rev%20Med.pdf
  *   doc: 
https://github.com/boucadair/IETF-Drafts-Reviews/raw/refs/heads/master/2025/draft-ietf-grow-bmp-path-marking-tlv-02-rev%20Med.doc

Overall, I think that the spec can be simplified. I don't see the need to have 
the enterprise TLV included here.

There are some few issues with encoding and, again, there is a room to simplify 
(e.g., avoid the bitmask). I wouldn't be surprised if you received 
contradictory comments as the doc is out there since 2019 :-)

Aah, do you really need to have a normative dependency on a spec that was 
expired since 2012? I would avoid that by having these parts self-contained.

Also, please update the terminology to be aligned with RFC 4271.

Thank you.

Cheers,
Med

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