[Idr] Re: Éric Vyncke's Discuss on draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle-06: (with DISCUSS and COMMENT)

[linchangwang <[e-mail]>]

Hi Éric ,

  Thank you for your review.
  We appreciate your thoughtful comments and suggestions.

  We submitted version-07 to address your comments.
  The IETF datatracker status page for this Internet-Draft is:
  https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle/07/
  A diff from the previous version is available at:
  https://author-tools.ietf.org/iddiff?url1=draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle-06&url2=draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle-07&difftype=--html

  Pls check and let us know if there are any further comments.
  Pls see inline with “Changwang>” tag.

Thanks,
Changwang



发件人: Éric Vyncke via Datatracker <[e-mail]>
发送时间: 2026年7月30日 21:04
收件人: The IESG <[e-mail]>
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主题: Éric Vyncke's Discuss on draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle-06: (with DISCUSS and COMMENT)



Éric Vyncke has entered the following ballot position for
draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle-06: Discuss

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DISCUSS:
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# Éric Vyncke INT AD comments for draft-ietf-idr-bgp-ls-sr-epe-over-l2bundle-06
CC @evyncke

Thank you for the work put into this document.

Please find below some blocking DISCUSS points (easy to address), some non-blocking COMMENT points/nits (replies would be appreciated even if only for my own education).

Special thanks to Sue Hares for the shepherd's write-up.

I hope that this review helps to improve the document,

Regards,

-éric

Note: this ballot comments follow the Markdown syntax of https://github.com/mnot/ietf-comments/tree/main, i.e., they can be processed by a tool to create github issues.

## DISCUSS (blocking)

As noted in
https://datatracker.ietf.org/doc/statement-iesg-handling-ballot-positions-20220121/,
a DISCUSS ballot is a request to have a discussion on the points below; I really think that the document would be improved with a change here, but can be convinced otherwise.

### Section 3

Why not a MUST in `If so, it SHOULD advertise the Peer Adjacency Segments of bundle members in BGP-LS` ? There is condition to the MUST. Else, provide guidance of the effect of bypassing the SHOULD.

Changwang> ACK, modified in the new version.

See also:
https://datatracker.ietf.org/doc/statement-iesg-statement-on-clarifying-the-use-of-bcp-14-key-words/

### Unbalancing the L2 bundle ?

I failed to find an operational consideration about the potential load unbalance when select specific bundle members, I am afraid that this could lead to overloaded bundle members. Please add some considerations on this issue (or explain why it is not an issue).

Moreover, if some packets of the flow happen to have different policies, then the packer ordering within a flow can be broken. As I am not a SR expert, this kind of policies may be impossible though.

Changwang> ACK, modified in the new version. See the newly added operation consideration section.


----------------------------------------------------------------------
COMMENT:
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## COMMENTS (non-blocking)

### Section 1

s/This document describes/This document *specifies*/ as it is PS.

Changwang> ACK, modified in the new version.

## NITS (non-blocking / cosmetic)

### Layer-2 vs. Layer 2

As English is not my primary language, I learned it at school and my grammar says to use "layer-2 interface" rather than the "Layer 2 interface" (i.e., hyphen and lowercase)...

Changwang> RFC8668 uses layer 2. Please check if it needs to be modified.

### Use of SVG graphics

To make a much nicer HTML rendering, suggest using the aasvg tool to generate SVG graphics. It is worth a try especially if the I-D uses the Kramdown file format ;-)

Changwang> Not modified yet. I'll familiarize myself with the tool locally and will make the changes in the next version. Thanks for the suggestion.



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