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Liaison statement
Update on BBF-entitled project “Network Resource Model (NRM)”

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State Posted
Submitted Date 2025-06-27
From Group BROADBAND-FORUM
From Contact lylavoie@iol.unh.edu
To Group ivy
To Contacts Qiufang Ma <maqiufang1@huawei.com>
Daniele Ceccarelli <dceccare@cisco.com>
Cc Mahesh Jethanandani <mjethanandani@gmail.com>
Qiufang Ma <maqiufang1@huawei.com>
Xueyan Song <song.xueyan2@zte.com.cn>
Daniele Ceccarelli <dceccare@cisco.com>
Network Inventory YANG Discussion List <inventory-yang@ietf.org>
Mohamed Boucadair <mohamed.boucadair@orange.com>
Response Contact lylavoie@iol.unh.edu
Purpose For information
Attachments LIAISE-708
Body
Hello,

We want to provide you an update about the WT-454i2/Network Resource Model
(NRM) project in BBF Provider Cloud WA, and at the same time ask about the
status and expected publication date of a number of draft RFC texts from the
IETF IVY work group, on which our work builds upon.

Last year (06/02/2024) we provided you with information (our reference
LIAISE-644) about a new BBF project that was established in 2023 in the BBF
SDN-NFV Work Area (in the meantime renamed as Provider Cloud Work Area) with a
goal to review and specify the information/data models exposed between the
(CloudCO) Domain Orchestrator  and the Access SDN Management & Control 
function addressing different use cases such as network build/planning, service
build/fulfillment, assurance/service operations for the access network.

This work has now resulted in the (draft) NRM YANG data models, categorized
into Inventory NRM and Topology NRM. Accordingly, a new text for WT-454i2 is
being written, that accompanies these new NRM inventory and topology YANG
models. Both the NRM data models and WT-454i2 still need to be approved in the
BBF Provider Cloud WA, before the updated specification (TR-454i2) and the BBF
NRM YANG modules are officially published on Github.

The Topology NRM mainly builds on/augments RFC 8345, but has also a dependency
on • draft-ietf-ivy-network-inventory-yang

The Inventory NRM builds on/augments the following IETF IVY WG drafts:
• draft-ietf-ivy-network-inventory-yangdraft-ietf-ivy-network-inventory-locationdraft-ietf-ivy-network-inventory-software

We would like to ask if you have any target publication dates for the RFC
drafts mentioned above.

Sincerely,

Lincoln Lavoie,
Broadband Forum Technical Committee Chair

CC:
Liaisons at BBF <liaisons@broadband-forum.org>
Lincoln Lavoie, Broadband Forum Technical Committee Chair <lylavoie@iol.unh.edu>
Craig Thomas, Broadband Forum Managing Director <cthomas@broadband-forum.org>
Karina Rocha-Gabbard, Broadband Forum Member Operations and Support Manager
<krocha@broadband-forum.org> Bruno Cornaglia, Broadband Forum Provider Cloud
Work Area co-Director <bruno.cornaglia@vodafone.com> Mengmeng Li, Broadband
Forum Provider Cloud Work Area co-Director limengmeng@chinamobile.com
Zhenghaomian zhenghaomian@huawei.com, Broadband Forum Provider Cloud Work Area
co-Director statements@ietf.org bbf-liaison@ietf.org

Broadband Forum Reference: LIAISE-708

Date of Upcoming Broadband Forum Meetings: See
https://www.broadband-forum.org/events/?category=upcoming-member-meetings