Hi Stephane, and all,

IMHO, let’s abandon the BESS draft given everything needed is covered in the 
IDR draft, which seems complete in current state.

Regards,
Serge.

From: [email protected] <[email protected]>
Date: Friday, 18 July 2025 at 10:29
To: 'Jeffrey Haas' <[email protected]>, 'idr' <[email protected]>
Cc: [email protected] 
<[email protected]>, [email protected] 
<[email protected]>, [email protected] <[email protected]>, 
[email protected] <[email protected]>
Subject: RE: [Idr] Re: WGLC for draft-ietf-idr-link-bandwidth (Ending 1 August, 
2025)
Hi Jeff, and folks,

(cc-ing BESS and BESS chairs)

Speaking as BESS chair, we think that there could be value to merge 
draft-ietf-bess-ebgp-dmz and draft-ietf-idr-link-bandwidth.

draft-ietf-bess-ebgp-dmz is currently informational and covers two things:

  *   Allowing non-transitive LBW to be sent over eBGP: I think the LBW IDR 
draft covers this in 3.1:
“Note: Implementations MAY provide a configuration option to send non-
   transitive Link Bandwidth extended communities on external BGP
   sessions.”


  *   Allowing some maths on the LBW of contributing multipaths and advertising 
the computed value:  the current IDR draft introduces this in 3.4. These maths 
are essentially a local behavior, we can give an example, but likely this 
doesn’t require standardization.

Based on that draft-ietf-bess-ebgp-dmz becomes more a use case draft rather 
than a draft which is specifying some new behavior and as BESS chairs, we want 
to avoid this. draft-ietf-bess-ebgp-dmz will require significant text rework if 
it needs to move forward as it makes some assumptions about IDR LBW draft which 
are not true anymore.


We would like to hear opinions of both working group.

Brgds,

Stephane, Matthew, Jeffrey (BESS chairs)


From: Jeffrey Haas <[email protected]>
Sent: Thursday, July 17, 2025 7:46 PM
To: idr <[email protected]>
Cc: [email protected]
Subject: [Idr] Re: WGLC for draft-ietf-idr-link-bandwidth (Ending 1 August, 
2025)

This is a reminder that WGLC is in progress for link bandwidth.  Please respond 
to the list whether you think the document is ready to be advanced for 
publication.

-- Jeff (shepherding chair)

On Jul 11, 2025, at 11:01 AM, Jeffrey Haas 
<[email protected]<mailto:[email protected]>> wrote:

https://datatracker.ietf.org/doc/draft-ietf-idr-link-bandwidth/

This begins the working group last call for the link bandwidth extended 
community draft.  Thanks to the authors for working their way through the 
substantive items that have been obstacles to interoperability over the years.

This last call ends a week after IETF 123 to give the working group time to 
review and also take advantage of the focus time that IETF meeting weeks bring 
to our work.

An item in particular we'd like to request particular attention to from the 
working group's review are the procedures covering default behaviors and 
interactions with deployments with mixed transitivities.  The current draft 
text works to try to accommodate maximal backward compatibility with various 
deployment scenarios, but such text is tricky.

For purposes of the shepherd's report and according to IETF BCP 78/79, the 
authors are requested to declare whether they are aware of any undisclosed IPR 
covering this draft. Members of the working group are similarly obligated to 
report any they are aware of as well.

-- Jeff (for the IDR Chairs)
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