[Idr] Re: New Liaison Statement, "oLS to IETF on BGP data model"

[Jeffrey Haas <[e-mail]>]

Lincoln,

Thank you for inquiry into the IETF BGP YANG model.  A more complete response to the Broadband Forum's liaison statement should be forthcoming in the next few days after the IDR Chairs convene to discuss the question.

To assist the IETF IDR Working Group's participants and chairs in answering your question, it would be helpful to have further details relating to the BBF data model that has dependencies on the IETF BGP YANG data model.  This is the WT-477i2 cited below.  

The BGP YANG internet-draft is composed of multiple YANG modules. If the BBF could help make WT-477i2 available for for review, this will assist IDR in determining what portions of the IETF work is most critical to satisfy the dependencies that the BBF has on the IETF work.  

Regards,

Jeffrey Haas, IDR Co-Chair.

> On Nov 21, 2025, at 9:39 PM, Liaison Statement Management Tool <[e-mail]> wrote:
> 
> Title: oLS to IETF on BGP data model
> Submission Date: 2025-11-21
> URL of the IETF Web page: https://datatracker.ietf.org/liaison/2081/
> 
> To: Inter-Domain Routing (idr)
> From: Broadband Forum
> Purpose: For information
> 
> 
> Email Addresses
> ---------------
> From: [e-mail]
> To: Sue <[e-mail]>,Keyur Patel <[e-mail]>,Jeffrey Haas <[e-mail]>
> Cc: Jeffrey Haas <[e-mail]>,Inter-Domain Routing Discussion List <[e-mail]>,Keyur Patel <[e-mail]>,Xueyan Song <[e-mail]>,Jim Guichard <[e-mail]>,Ketan Talaulikar <[e-mail]>,Sue <[e-mail]>,Gunter Van de Velde <[e-mail]>,Craig Thomas <[e-mail]>,Karina Rocha-Gabbard <[e-mail]>,Bruno Cornaglia <[e-mail]>,Mengmeng Li <[e-mail]>,Haomian Zheng <[e-mail]>
> Response Contacts: [e-mail]
> Technical Contacts: 
> 
> 
> Body: Dear Colleagues,
> 
> Broadband Forum is currently working on defining protocols, message flows and data models for disaggregated devices. In particular, Provider Cloud Work Area is working on Disaggregated Access Node, namely TR-477, and in the second release of it, currently on draft, it is focusing on the disaggregation of L3 functions. Obviously, apart from creating the CP-UP message flows for the disaggregated functions, BBF is not developing any new data models, if they already exist in other SDOs. One of the L3 functions currently under development is BGP and BBF is reusing the current draft data model developed by IETF:
> 
> •	draft-ietf-idr-bgp-model-18
> link: draft-ietf-idr-bgp-model-18 - YANG Model for Border Gateway Protocol (BGP-4)
> 
> of which we are only using the following data model: [e-mail].
> 
> The BBF document referring to this data model (WT-477i2) is almost completed, and we are going to proceed with our straw ballot process. Anyhow we cannot proceed with the publication until the IETF data model on BGP is published.
> 
> So, we would like to ask if the IETF have any target publication dates for the data model mentioned above in order to understand when we can publish the issue 2 of TR-477.
> 
> 
> Sincerely,
> 
> Lincoln Lavoie,
> Broadband Forum Technical Committee Chair
> 
> 
> CC:
> Liaisons at BBF <[e-mail]> 
> Lincoln Lavoie, Broadband Forum Technical Committee Chair <[e-mail]>
> Craig Thomas, Broadband Forum Managing Director <[e-mail]>
> Karina Rocha-Gabbard, Broadband Forum Member Operations and Support Manager <[e-mail]>
> Bruno Cornaglia, Broadband Forum Provider Cloud Work Area co-Director <[e-mail]>
> Mengmeng Li, Broadband Forum Provider Cloud Work Area co-Director <[e-mail]>
> Haomian Zheng, Broadband Forum Provider Cloud Work Area co-Director <[e-mail]>
> [e-mail]
> [e-mail]
> Attachments:
> 
>    LIAISE-719
>    https://www.ietf.org/lib/dt/documents/LIAISON/liaison-2025-11-22-broadband-forum-idr-ols-to-ietf-on-bgp-data-model-attachment-1.docx
>