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Liaison statement
IETF work related to the management and orchestration of network slicing

Additional information about IETF liaison relationships is available on the IETF webpage and the Internet Architecture Board liaison webpage.
State Posted
Submitted Date 2018-06-15
From Group l2sm
From Contact Adrian Farrel
To Group 3GPP-TSG-SA-WG5
To Contacts Thomas Tovinger <>
3GPP Liaisons Coordinator <>
Cc Adrian Farrel <>
Ignas Bagdonas <>
Qin Wu <>
Warren Kumari <>
L2VPN Service Model Discussion List <>
Response Contact Adrian Farrel <>
Qin Wu <>
Technical Contact Adrian Farrel <>
Qin Wu <>
Purpose For information
Attachments (None)
We note that 3GPP SA5 is working on Management and orchestration of 5G networks
and network slicing ( and
is considering various existing data models as references.

We would like to take this opportunity to inform you of the status of several
pieces of work in the IETF that provide support for network slicing for IP
services , L2 services, TE services, and transport networks.

RFC 8299 provides A YANG Data Model for L3VPN Service Delivery.
This document is a published RFC with IETF consensus.

draft-ietf-l2sm-l2vpn-service-model provides A YANG Data Model for L2VPN
Service Delivery. This document has achieved working group and IETF consensus,
and is currently completing approval for publication as an RFC.

Two further informational documents developed by the IETF community may help
explain this work:

- RFC 8309 sets the previous two documents in context by explaining what the
   means by the term "Service Model"

- RFC 8199 provides a YANG module classification that will also assist you in
   how the IETF's YANG modules fit together.

You may also be interested in work in the TEAS working group on Abstraction and
Control of Traffic Engineered networks (ACTN). In particular, there is YANG
model for Virtual Network operation in an ACTN context that may be of specific
interest to you:

Wishing you all success in your work,
Qin Wu and Adrian Farrel
Co-chairs, IETF L2SM working group